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| Author | Buckland, S.T.; Yuan, Y.; Marcon, E. | ||||
| Title | Measuring temporal trends in biodiversity | Type | Journal Article | ||
| Year | 2017 | Publication | AStA Advances in Statistical Analysis | Abbreviated Journal | AStA Advances in Statistical Analysis |
Volume  |
101 | Issue | 4 | Pages | 461-474 |
| Keywords | Biodiversity measures; Diversity profiles; Geometric mean; Species similarity; Turnover measures | ||||
| Abstract | In 2002, nearly 200 nations signed up to the 2010 target of the Convention for Biological Diversity, ‘to significantly reduce the rate of biodiversity loss by 2010’. To assess whether the target was met, it became necessary to quantify temporal trends in measures of diversity. This resulted in a marked shift in focus for biodiversity measurement. We explore the developments in measuring biodiversity that was prompted by the 2010 target. We consider measures based on species proportions, and also explain why a geometric mean of relative abundance estimates was preferred to such measures for assessing progress towards the target. We look at the use of diversity profiles, and consider how species similarity can be incorporated into diversity measures. We also discuss measures of turnover that can be used to quantify shifts in community composition arising, for example, from climate change. © 2017, The Author(s). | ||||
| Address | UMR EcoFoG, AgroParisTech, Campus Agronomique, BP 316, Kourou, French Guiana, France | ||||
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| Notes | Cited By :1; Export Date: 2 November 2017 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 769 | ||
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| Author | Srivastava, D.S.; Céréghino, R.; Trzcinski, M.K.; MacDonald, A.A.M.; Marino, N.A.C.; Mercado, D.A.; Leroy, C.; Corbara, B.; Romero, G.Q.; Farjalla, V.F.; Barberis, I.M.; Dézerald, O.; Hammill, E.; Atwood, T.B.; Piccoli, G.C.O.; Ospina-Bautista, F.; Carrias, J.-F.; Leal, J.S.; Montero, G.; Antiqueira, P.A.P.; Freire, R.; Realpe, E.; Amundrud, S.L.; de Omena, P.M.; Campos, A.B.A. | ||||
| Title | Ecological response to altered rainfall differs across the Neotropics | Type | Journal Article | ||
| Year | 2020 | Publication | Ecology | Abbreviated Journal | Ecology |
| Volume |
101 | Issue | 4 | Pages | e02984 |
| Keywords | contingency; distributed experiment; freshwater; global change biology; macroinvertebrates; phytotelmata; precipitation; aquatic ecosystem; climate change; climate conditions; ecosystem response; extreme event; functional group; invertebrate; Neotropical Region; rainfall; species pool; Bacteria (microorganisms); Invertebrata; rain; animal; climate change; drought; ecosystem; invertebrate; Animals; Climate Change; Droughts; Ecosystem; Invertebrates; Rain | ||||
| Abstract | There is growing recognition that ecosystems may be more impacted by infrequent extreme climatic events than by changes in mean climatic conditions. This has led to calls for experiments that explore the sensitivity of ecosystems over broad ranges of climatic parameter space. However, because such response surface experiments have so far been limited in geographic and biological scope, it is not clear if differences between studies reflect geographic location or the ecosystem component considered. In this study, we manipulated rainfall entering tank bromeliads in seven sites across the Neotropics, and characterized the response of the aquatic ecosystem in terms of invertebrate functional composition, biological stocks (total invertebrate biomass, bacterial density) and ecosystem fluxes (decomposition, carbon, nitrogen). Of these response types, invertebrate functional composition was the most sensitive, even though, in some sites, the species pool had a high proportion of drought-tolerant families. Total invertebrate biomass was universally insensitive to rainfall change because of statistical averaging of divergent responses between functional groups. The response of invertebrate functional composition to rain differed between geographical locations because (1) the effect of rainfall on bromeliad hydrology differed between sites, and invertebrates directly experience hydrology not rainfall and (2) the taxonomic composition of some functional groups differed between sites, and families differed in their response to bromeliad hydrology. These findings suggest that it will be difficult to establish thresholds of “safe ecosystem functioning” when ecosystem components differ in their sensitivity to climatic variables, and such thresholds may not be broadly applicable over geographic space. In particular, ecological forecast horizons for climate change may be spatially restricted in systems where habitat properties mediate climatic impacts, and those, like the tropics, with high spatial turnover in species composition. © 2020 by the Ecological Society of America | ||||
| Address | Departamento de Ciencias Biológicas, Universidad de Caldas, Caldas, 170001, Colombia | ||||
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| Publisher | Ecological Society of America | Place of Publication | Editor | ||
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| ISSN | 00129658 (Issn) | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 979 | ||
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| Author | Fortunel, C.; Paine, C.E.T.; Fine, P.V.A.; Kraft, N.J.B.; Baraloto, C. | ||||
| Title | Environmental factors predict community functional composition in Amazonian forests | Type | Journal Article | ||
| Year | 2014 | Publication | Journal of Ecology | Abbreviated Journal | J. Ecol. |
| Volume |
102 | Issue | 1 | Pages | 145-155 |
| Keywords | Amazonian landscape; Climatic and soil gradients; Determinants of plant community diversity and structure; Environmental filtering; Functional traits; Tree communities; Tropical forests | ||||
| Abstract | The consequences of biodiversity loss for ecosystem services largely depend on the functional identities of extirpated species. However, poor descriptions of spatial patterns of community functional composition across landscapes hamper accurate predictions, particularly in highly diverse tropical regions. Therefore, understanding how community functional composition varies across environmental gradients remains an important challenge. We sampled 15 functional traits in 800 Neotropical tree species across 13 forest plots representative of the broad climatic and soil gradients encompassed by three widespread lowland forest habitats (terra firme forests on clay-rich soils, seasonally flooded forests and white-sand forests) at opposite ends of Amazonia (Peru and French Guiana). We combined univariate and multivariate approaches to test the magnitude and predictability of environmental filtering on community leaf and wood functional composition. Directional shifts in community functional composition correlated with environmental changes across the 13 plots, with denser leaves, stems and roots in forests occurring in environments with limited water and soil-nutrient availability. Critically, these relationships allowed us to accurately predict the functional composition of 61 additional forest plots from environmental data alone. Synthesis. Environmental filtering consistently shapes the functional composition of highly diverse tropical forests at large scales across the terra firme, seasonally flooded and white-sand forests of lowland Amazonia. Environmental factors drive and allow the prediction of variation in community functional composition among habitat types in Amazonian forests. © 2013 British Ecological Society. | ||||
| Address | Department of Biology, University of Florida, Gainesville, FL, 32611, United States | ||||
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| ISSN | 00220477 (Issn) | ISBN | Medium | ||
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| Notes | Export Date: 31 December 2013; Source: Scopus; Coden: Jecoa; doi: 10.1111/1365-2745.12160; Language of Original Document: English; Correspondence Address: Fortunel, C.; INRA, UMR Ecologie des Forêts de Guyane, BP 709, Kourou Cedex, 97387, France; email: claire.fortunel@ecofog.gf; Funding Details: DEB-0743103/0743800, NSF, National Science Foundation; References: Agrawal, A.A., Fishbein, M., Plant defense syndromes (2006) Ecology, 87, pp. S132-S149; Anderson, L.O., Malhi, Y., Ladle, R.J., Aragao, L., Shimabukuro, Y., Phillips, O.L., Influence of landscape heterogeneity on spatial patterns of wood productivity, wood specific density and above ground biomass in Amazonia (2009) Biogeosciences, 6, pp. 1883-1902; Asner, G.P., Alencar, A., Drought impacts on the Amazon forest: the remote sensing perspective (2010) New Phytologist, 187, pp. 569-578; Asner, G.P., Loarie, S.R., Heyder, U., Combined effects of climate and land-use change on the future of humid tropical forests (2010) Conservation Letters, 3, pp. 395-403; Baraloto, C., Paine, C.E.T., Patiño, S., Bonal, D., Herault, B., Chave, J., Functional trait variation and sampling strategies in species-rich plant communities (2010) Functional Ecology, 24, pp. 208-216; Baraloto, C., Paine, C.E.T., Poorter, L., Beauchene, J., Bonal, D., Domenach, A.M., Hérault, B., Chave, J., Decoupled leaf and stem economics in rain forest trees (2010) Ecology Letters, 13, pp. 1338-1347; Baraloto, C., Rabaud, S., Molto, Q., Blanc, L., Fortunel, C., Hérault, B., Davila, N., Fine, P.V.A., Disentangling stand and environmental correlates of aboveground biomass in Amazonian forests (2011) Global Change Biology, 17, pp. 2677-2688; Baraloto, C., Molto, Q., Rabaud, S., Hérault, B., Valencia, R., Blanc, L., Fine, P.V.A., Thompson, J., Rapid simultaneous estimation of aboveground biomass and tree diversity across Neotropical forests: a comparison of field inventory methods (2013) Biotropica, 45, pp. 288-298; Belyea, L.R., Lancaster, J., Assembly rules within a contingent ecology (1999) Oikos, 86, pp. 402-416; Berry, S.L., Roderick, M.L., Estimating mixtures of leaf functional types using continental-scale satellite and climatic data (2002) Global Ecology and Biogeography, 11, pp. 23-39; Brando, P.M., Nepstad, D.C., Balch, J.K., Bolker, B., Christman, M.C., Coe, M., Putz, F.E., Fire-induced tree mortality in a neotropical forest: the roles of bark traits, tree size, wood density and fire behavior (2012) Global Change Biology, 18, pp. 630-641; Burnham, K.P., Anderson, D.R., Multimodel inference – understanding AIC and BIC in model selection (2004) Sociological Methods & Research, 33, pp. 261-304; Calcagno, V., de Mazancourt, C., glmulti: an R package for easy automated model selection with (generalized) linear models (2010) Journal of Statistical Software, 34, pp. 1-29; Chapin, F.S., BretHarte, M.S., Hobbie, S.E., Zhong, H.L., Plant functional types as predictors of transient responses of arctic vegetation to global change (1996) Journal of Vegetation Science, 7, pp. 347-358; Chaturvedi, R.K., Raghubanshi, A.S., Singh, J.S., Leaf attributes and tree growth in a tropical dry forest (2011) Journal of Vegetation Science, 22, pp. 917-931; Chave, J., Coomes, D., Jansen, S., Lewis, S.L., Swenson, N.G., Zanne, A.E., Towards a worldwide wood economics spectrum (2009) Ecology Letters, 12, pp. 351-366; Cingolani, A.M., Cabido, M., Gurvich, D.E., Renison, D., Diaz, S., Filtering processes in the assembly of plant communities: are species presence and abundance driven by the same traits? (2007) Journal of Vegetation Science, 18, pp. 911-920; Coates, K.D., Lilles, E.B., Astrup, R., Competitive interactions across a soil fertility gradient in a multispecies forest (2013) Journal of Ecology, 101, pp. 806-818; Cornwell, W.K., Ackerly, D.D., Community assembly and shifts in plant trait distributions across an environmental gradient in coastal California (2009) Ecological Monographs, 79, pp. 109-126; Cornwell, W.K., Schwilk, D.W., Ackerly, D.D., A trait-based test for habitat filtering: convex hull volume (2006) Ecology, 87, pp. 1465-1471; Craine, J.M., Reconciling plant strategy theories of Grime and Tilman (2005) Journal of Ecology, 93, pp. 1041-1052; de Deyn, G.B., Cornelissen, J.H.C., Bardgett, R.D., Plant functional traits and soil carbon sequestration in contrasting biomes (2008) Ecology Letters, 11, pp. 516-531; Dray, S., Dufour, A.B., The ade4 package: implementing the duality diagram for ecologists (2007) Journal of Statistical Software, 22, pp. 1-20; Engelbrecht, B.M.J., Comita, L.S., Condit, R., Kursar, T.A., Tyree, M.T., Turner, B.L., Hubbell, S.P., Drought sensitivity shapes species distribution patterns in tropical forests (2007) Nature, 447, pp. 80-82; Farquhar, G.D., Ehleringer, J.R., Hubick, K.T., Carbon isotope discrimination and photosynthesis (1989) Annual Review of Plant Physiology and Plant Molecular Biology, 40, pp. 503-537; Ferry, B., Morneau, F., Bontemps, J.D., Blanc, L., Freycon, V., Higher treefall rates on slopes and waterlogged soils result in lower stand biomass and productivity in a tropical rain forest (2010) Journal of Ecology, 98, pp. 106-116; Fine, P.V.A., Mesones, I., Coley, P.D., Herbivores promote habitat specialization by trees in Amazonian forests (2004) Science, 305, pp. 663-665; Fine, P.V.A., Miller, Z.J., Mesones, I., Irazuzta, S., Appel, H.M., Stevens, M.H.H., Saaksjarvi, I., Coley, P.D., The growth-defense trade-off and habitat specialization by plants in Amazonian forests (2006) Ecology, 87, pp. S150-S162; Fortunel, C., Fine, P.V.A., Baraloto, C., Leaf, stem and root tissue strategies across 758 Neotropical tree species (2012) Functional Ecology, 26, pp. 1153-1161; Fyllas, N.M., Patino, S., Baker, T.R., Nardoto, G.B., Martinelli, L.A., Quesada, C.A., Basin-wide variations in foliar properties of Amazonian forest: phylogeny, soils and climate (2009) Biogeosciences, 6, pp. 2677-2708; Grime, J.P., Vegetation classification by reference to strategies (1974) Nature, 250, pp. 26-31; Harrison, S.P., Prentice, I.C., Barboni, D., Kohfeld, K.E., Ni, J., Sutra, J.P., Ecophysiological and bioclimatic foundations for a global plant functional classification (2010) Journal of Vegetation Science, 21, pp. 300-317; Huston, M.A., Precipitation, soils, NPP, and biodiversity: resurrection of Albrecht's curve (2012) Ecological Monographs, 82, pp. 277-296; Ingram, T., Shurin, J.B., Trait-based assembly and phylogenetic structure in northeast Pacific rockfish assemblages (2009) Ecology, 90, pp. 2444-2453; Kadane, J.B., Lazar, N.A., Methods and criteria for model selection (2004) Journal of the American Statistical Association, 99, pp. 279-290; Katabuchi, M., Kurokawa, H., Davies, S.J., Tan, S., Nakashizuka, T., Soil resource availability shapes community trait structure in a species-rich dipterocarp forest (2012) Journal of Ecology, 100, pp. 643-651; Keddy, P.A., Assembly and response rules – two goals for predictive community ecology (1992) Journal of Vegetation Science, 3, pp. 157-164; Keith, D.A., Holman, L., Rodoreda, S., Lemmon, J., Bedward, M., Plant functional types can predict decade-scale changes in fire-prone vegetation (2007) Journal of Ecology, 95, pp. 1324-1337; Kitajima, K., Poorter, L., Tissue-level leaf toughness, but not lamina thickness, predicts sapling leaf lifespan and shade tolerance of tropical tree species (2010) New Phytologist, 186, pp. 708-721; Kraft, N.J.B., Valencia, R., Ackerly, D.D., Functional traits and niche-based tree community assembly in an Amazonian forest (2008) Science, 322, pp. 580-582; Landsberg, J., Modelling forest ecosystems: state of the art, challenges, and future directions (2003) Canadian Journal of Forest Research, 33, pp. 385-397; Laughlin, D.C., Fulé, P.Z., Huffman, D.W., Crouse, J., Laliberté, E., Climatic constraints on trait-based forest assembly (2011) Journal of Ecology, 99, pp. 1489-1499; Lavergne, S., Mouquet, N., Thuiller, W., Ronce, O., Biodiversity and climate change: integrating evolutionary and ecological responses of species and communities (2010) Annual Review of Ecology, Evolution, and Systematics, 41, pp. 321-350; Lavorel, S., Grigulis, K., McIntyre, S., Williams, N.S.G., Garden, D., Dorrough, J., Berman, S., Bonis, A., Assessing functional diversity in the field: methodology matters! (2008) Functional Ecology, 22, pp. 134-147; Lebrija-Trejos, E., Perez-Garcia, E.A., Meave, J.A., Bongers, F., Poorter, L., Functional traits and environmental filtering drive community assembly in a species-rich tropical system (2010) Ecology, 91, pp. 386-398; Liu, X., Swenson, N.G., Wright, S.J., Zhang, L., Song, K., Du, Y., Zhang, J., Ma, K., Covariation in plant functional traits and soil fertility within two species-rich forests (2012) PLoS ONE, 7, pp. e34767; Lortie, C.J., Brooker, R.W., Choler, P., Kikvidze, Z., Michalet, R., Pugnaire, F.I., Callaway, R.M., Rethinking plant community theory (2004) Oikos, 107, pp. 433-438; Malhi, Y., Roberts, J.T., Betts, R.A., Killeen, T.J., Li, W.H., Nobre, C.A., Climate change, deforestation, and the fate of the Amazon (2008) Science, 319, pp. 169-172; Muller-Landau, H.C., Interspecific and inter-site variation in wood specific gravity of tropical trees (2004) Biotropica, 36, pp. 20-32; Niinemets, U., Components of leaf dry mass per area – thickness and density – alter leaf photosynthetic capacity in reverse directions in woody plants (1999) New Phytologist, 144, pp. 35-47; Oksanen, J.F., Blanchet, G., Kindt, R., Legendre, P., Minchin, P.R., O'Hara, R.B., Simpson, G.L., Wagner, H., (2012), http://CRAN.R-project.org/package=vegan, vegan: Community Ecology Package. R package version 2.0-3Onoda, Y., Westoby, M., Adler, P.B., Choong, A.M.F., Clissold, F.J., Cornelissen, J.H.C., Global patterns of leaf mechanical properties (2011) Ecology Letters, 14, pp. 301-312; Ordonez, J.C., van Bodegom, P.M., Witte, J.P.M., Wright, I.J., Reich, P.B., Aerts, R., A global study of relationships between leaf traits, climate and soil measures of nutrient fertility (2009) Global Ecology and Biogeography, 18, pp. 137-149; Paine, C.E.T., Stahl, C., Courtois, E.A., Patino, S., Sarmiento, C., Baraloto, C., Functional explanations for variation in bark thickness in tropical rain forest trees (2010) Functional Ecology, 24, pp. 1202-1210; Paine, C.E.T., Baraloto, C., Chave, J., Herault, B., Functional traits of individual trees reveal ecological constraints on community assembly in tropical rain forests (2011) Oikos, 120, pp. 720-727; Parolin, P., Morphological and physiological adjustments to waterlogging and drought in seedlings of Amazonian floodplain trees (2001) Oecologia, 128, pp. 326-335; Parolin, P., De Simone, O., Haase, K., Waldhoff, D., Rottenberger, S., Kuhn, U., Kesselmeier, J., Junk, W.J., Central Amazonian floodplain forests: tree adaptations in a pulsing system (2004) Botanical Review, 70, pp. 357-380; Phillips, O.L., Vasquez Martinez, R., Nunez Vargas, P., Lorenzo Monteagudo, A., Chuspe Zans, M.E., Galiano Sanchez, W., Pena Cruz, A., Rose, S., Efficient plot-based floristic assessment of tropical forests (2003) Journal of Tropical Ecology, 19, pp. 629-645; Poorter, L., Wright, S.J., Paz, H., Ackerly, D.D., Condit, R., Ibarra-Manriques, G., Are functional traits good predictors of demographic rates? Evidence from five neotropical forests (2008) Ecology, 89, pp. 1908-1920; Quesada, C.A., Lloyd, J., Anderson, L.O., Fyllas, N.M., Schwarz, M., Czimczik, C.I., Soils of Amazonia with particular reference to the RAINFOR sites (2011) Biogeosciences, 8, pp. 1415-1440; Quesada, C.A., Phillips, O.L., Schwarz, M., Czimczik, C.I., Baker, T.R., Patino, S., Basin-wide variations in Amazon forest structure and function are mediated by both soils and climate (2012) Biogeosciences, 9, pp. 2203-2246; (2011), http://www.R-project.org, R Development Core TeamReich, P.B., Walters, M.B., Ellsworth, D.S., From tropics to tundra: global convergence in plant functioning (1997) Proceedings of the National Academy of Sciences of the United States of America, 94, pp. 13730-13734; Reu, B., Zaehle, S., Proulx, R., Bohn, K., Kleidon, A., Pavlick, R., Schmidtlein, S., The role of plant functional trade-offs for biodiversity changes and biome shifts under scenarios of global climatic change (2011) Biogeosciences, 7, pp. 7449-7473; Ryan, C.M., Hill, T., Woollen, E., Ghee, C., Mitchard, E., Cassells, G., Grace, J., Williams, M., Quantifying small-scale deforestation and forest degradation in African woodlands using radar imagery (2012) Global Change Biology, 18, pp. 243-257; Smith, M.J., Sibly, R.M., Identification of trade-offs underlying the primary strategies of plants (2008) Evolutionary Ecology Research, 10, pp. 45-60; ter Steege, H., Sabatier, D., Castellanos, H., Van Andel, T., Duivenvoorden, J., De Oliveira, A.A., Ek, R., Mori, S., An analysis of the floristic composition and diversity of Amazonian forests including those of the Guiana Shield (2000) Journal of Tropical Ecology, 16, pp. 801-828; ter Steege, H., Pitman, N.C.A., Phillips, O.L., Chave, J., Sabatier, D., Duque, A., Molino, J.F., Vasquez, R., Continental-scale patterns of canopy tree composition and function across Amazonia (2006) Nature, 443, pp. 444-447; Suding, K.N., Goldstein, L.J., Testing the Holy Grail framework: using functional traits to predict ecosystem change (2008) New Phytologist, 180, pp. 559-562; Swenson, N.G., Anglada-Cordero, P., Barone, J.A., Deterministic tropical tree community turnover: evidence from patterns of functional beta diversity along an elevational gradient (2010) Proceedings of the Royal Society of London. Series B, Biological Sciences, 278, pp. 877-884; Swenson, N.G., Enquist, B.J., Opposing assembly mechanisms in a neotropical dry forest: implications for phylogenetic and functional community ecology (2009) Ecology, 90, pp. 2161-2170; Swenson, N.G., Stegen, J.C., Davies, S.J., Erickson, D.L., Forero-Montaña, J., Hurlbert, A.H., Kress, W.J., Zimmerman, J.K., Temporal turnover in the composition of tropical tree communities: functional determinism and phylogenetic stochasticity (2012) Ecology, 93, pp. 490-499; Tilman, D., Constraints and tradeoffs – toward a predictive theory of competition and succession (1990) Oikos, 58, pp. 3-15; Wagner, F., Herault, B., Stahl, C., Bonal, D., Rossi, V., Modeling water availability for trees in tropical forests (2011) Agricultural and Forest Meteorology, 151, pp. 1202-1213; Wand, M.P., Fast computation of multivariate kernel estimators (1994) Journal of Computational and Graphical Statistics, 3, pp. 433-445; Warton, D.I., Wright, I.J., Falster, D.S., Westoby, M., Bivariate line-fitting methods for allometry (2006) Biological Reviews, 81, pp. 259-291; Webb, C.T., Hoeting, J.A., Ames, G.M., Pyne, M.I., Poff, N.L., A structured and dynamic framework to advance traits-based theory and prediction in ecology (2010) Ecology Letters, 13, pp. 267-283; Williamson, G.B., Wiemann, M.C., Measuring wood specific gravity ... correctly (2010) American Journal of Botany, 97, pp. 519-524; Wright, I.J., Reich, P.B., Westoby, M., Ackerly, D.D., Baruch, Z., Bongers, F., The worldwide leaf economics spectrum (2004) Nature, 428, pp. 821-827; Wright, I.J., Reich, P.B., Cornelissen, J.H.C., Falster, D.S., Garnier, E., Hikosaka, K., Assessing the generality of global leaf trait relationships (2005) New Phytologist, 166, pp. 485-496; Wright, I.J., Falster, D.S., Pickup, M., Westoby, M., Cross-species patterns in the coordination between leaf and stem traits, and their implications for plant hydraulics (2006) Physiologia Plantarum, 127, pp. 445-456; Wright, I.J., Ackerly, D.D., Bongers, F., Harms, K.E., Ibarra-Manriquez, G., Martinez-Ramos, M., Relationships among ecologically important dimensions of plant trait variation in seven Neotropical forests (2007) Annals of Botany, 99, pp. 1003-1015; Wright, S.J., Kitajima, K., Kraft, N.J.B., Reich, P.B., Wright, I.J., Bunker, D.E., Functional traits and the growth-mortality trade-off in tropical trees (2010) Ecology, 91, pp. 3664-3674 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 520 | ||
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| Author | Dejean, A.; Ryder, S.; Bolton, B.; Compin, A.; Leponce, M.; Azémar, F.; Céréghino, R.; Orivel, J.; Corbara, B. | ||||
| Title | How territoriality and host-tree taxa determine the structure of ant mosaics | Type | Journal Article | ||
| Year | 2015 | Publication | The Science of Nature | Abbreviated Journal | Sci Nat |
| Volume |
102 | Issue | 33 | Pages | 1-9 |
| Keywords | Africa; Arboreal ants; Distribution; Host-tree selection; Rainforest canopies | ||||
| Abstract | Very large colonies of territorially dominant arboreal ants (TDAAs), whose territories are distributed in a mosaic pattern in the canopies of many tropical rainforests and tree crop plantations, have a generally positive impact on their host trees. We studied the canopy of an old Gabonese rainforest (ca 4.25 ha sampled, corresponding to 206 Blarge trees) at a stage just preceding forest maturity (the Caesalpinioideae dominated; the Burseraceae were abundant). The tree crowns sheltered colonies from 13 TDAAs plus a codominant species out of the 25 ant species recorded. By mapping the TDAAs' territories and using a null model cooccurrence analysis, we confirmed the existence of an ant mosaic. Thanks to a large sampling set and the use of the self-organizing map algorithm (SOM), we show that the distribution of the trees influences the structure of the ant mosaic, suggesting that each tree taxon attracts certain TDAA species rather than others. The SOMalso improved our knowledge of the TDAAs' ecological niches, showing that these ant species are ecologically distinct from each other based on their relationships with their supporting trees. Therefore, TDAAs should not systematically be placed in the same functional group even when they belong to the same genus.We conclude by reiterating that, in addition to the role played by TDAAs' territorial competition, host trees contribute to structuring ant mosaics through multiple factors, including host-plant selection by TDAAs, the age of the trees, the presence of extrafloral nectaries, and the taxa of the associated hemipterans. © Springer-Verlag Berlin Heidelberg 2015. | ||||
| Address | Université Clermont Auvergne, Université Blaise Pascal (LMGE), Clermont-Ferrand, France | ||||
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| Notes | Export Date: 16 October 2015 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 632 | ||
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| Author | Peterson, Michaela ; Jorge, Maria Luisa S.P. ; Jain, Avarna ; Keuroghlian, Alexine ; Oshima, Julia Emi F. ; Richard-Hansen, Cécile ; Berzins, Rachel ; Ribeiro, Milton Cezar ; Eaton, Don | ||||
| Title | Temperature induces activity reduction in a Neotropical ungulate | Type | Journal Article | ||
| Year | 2021 | Publication | Journal of Mammalogy | Abbreviated Journal | |
| Volume |
102 | Issue | 6 | Pages | 1-11 |
| Keywords | activity patterns, global warming, South America, thermoregulation, tropical forest, white-lipped peccaries | ||||
| Abstract | Because global climate change results in increasingly extreme temperatures and more frequent droughts, behavioral thermoregulation is one avenue by which species may adjust. Changes in activity patterns in response to temperature have been observed in a number of mammal species, but rarely have been investigated in humid tropical habitats. Here we examine the relationship between activity patterns and microclimate temperatures for white-lipped peccaries (Tayassu pecari, Tayassuidae, Cetartiodactyla) in four distinct biomes—the Cerrado, the Pantanal, the Atlantic Forest, and the Amazon. From 2013 to 2017, we monitored 30 white-lipped peccaries fitted with GPS collars that included accelerometers and temperature sensors. White-lipped peccaries were primarily diurnal, with peaks of activity in the morning and late afternoon, except in the Amazon where activity was high throughout the day. Total time active did not vary seasonally. White-lipped peccaries were significantly less likely to be active as temperatures increased, with the probability of being active decreasing by >49% in all biomes between 30 and 40°C. Our findings indicate that white-lipped peccaries are likely to be adversely impacted by rising temperatures, through being forced to reduce foraging time during their prime active periods. | ||||
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| Publisher | Oxford University Press | Place of Publication | Editor | ||
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| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 1051 | ||
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| Author | Paine, C.E.T.; Amissah, L.; Auge, H.; Baraloto, C.; Baruffol, M.; Bourland, N.; Bruelheide, H.; Daïnou, K.; de Gouvenain, R.C.; Doucet, J.-L.; Doust, S.; Fine, P.V.A.; Fortunel, C.; Haase, J.; Holl, K.D.; Jactel, H.; Li, X.; Kitajima, K.; Koricheva, J.; Martínez-Garza, C.; Messier, C.; Paquette, A.; Philipson, C.; Piotto, D.; Poorter, L.; Posada, J.M.; Potvin, C.; Rainio, K.; Russo, S.E.; Ruiz-Jaen, M.; Scherer-Lorenzen, M.; Webb, C.O.; Wright, S.J.; Zahawi, R.A.; Hector, A. | ||||
| Title | Globally, functional traits are weak predictors of juvenile tree growth, and we do not know why | Type | Journal Article | ||
| Year | 2015 | Publication | Journal of Ecology | Abbreviated Journal | Journal of Ecology |
| Volume |
103 | Issue | 4 | Pages | 978-989 |
| Keywords | Functional ecology; FunDivEurope; Growth; Hierarchical models; Plant population and community dynamics; Relative growth rate; Size-standardized growth rate; TreeDivNet | ||||
| Abstract | Plant functional traits, in particular specific leaf area (SLA), wood density and seed mass, are often good predictors of individual tree growth rates within communities. Individuals and species with high SLA, low wood density and small seeds tend to have faster growth rates. If community-level relationships between traits and growth have general predictive value, then similar relationships should also be observed in analyses that integrate across taxa, biogeographic regions and environments. Such global consistency would imply that traits could serve as valuable proxies for the complex suite of factors that determine growth rate, and, therefore, could underpin a new generation of robust dynamic vegetation models. Alternatively, growth rates may depend more strongly on the local environment or growth-trait relationships may vary along environmental gradients. We tested these alternative hypotheses using data on 27 352 juvenile trees, representing 278 species from 27 sites on all forested continents, and extensive functional trait data, 38% of which were obtained at the same sites at which growth was assessed. Data on potential evapotranspiration (PET), which summarizes the joint ecological effects of temperature and precipitation, were obtained from a global data base. We estimated size-standardized relative height growth rates (SGR) for all species, then related them to functional traits and PET using mixed-effect models for the fastest growing species and for all species together. Both the mean and 95th percentile SGR were more strongly associated with functional traits than with PET. PET was unrelated to SGR at the global scale. SGR increased with increasing SLA and decreased with increasing wood density and seed mass, but these traits explained only 3.1% of the variation in SGR. SGR-trait relationships were consistently weak across families and biogeographic zones, and over a range of tree statures. Thus, the most widely studied functional traits in plant ecology were poor predictors of tree growth over large scales. Synthesis. We conclude that these functional traits alone may be unsuitable for predicting growth of trees over broad scales. Determining the functional traits that predict vital rates under specific environmental conditions may generate more insight than a monolithic global relationship can offer. The most widely studied functional traits in plant ecology, specific leaf area, wood density and seed mass, were only weakly associated with tree growth rates over broad scales. Assessing trait-growth relationships under specific environmental conditions may generate more insight than a global relationship can offer. © 2015 British Ecological Society. | ||||
| Address | Department of Plant Sciences, University of Oxford, Oxford, United Kingdom | ||||
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| Notes | Export Date: 3 July 2015 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 609 | ||
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| Author | Peguero, Guille ; Ferrin, Miquel ; Sardans, Jordi ; Verbruggen, Erik ; Ramirez-Rojas , Irène ; Van Langenhove, Leandro ; Verryckt, Lore T. ; Murienne, Jérôme ; Iribar, Amaia ; Zinger, Lucie ; Grau, Oriol ; Orivel, Jérome ; Stahl, Clement ; Courtois, Elodie A. ; Asensio, Dolores ; Gargallo-Garriga, Albert ; Llusia, Joan ; Margalef, Olga ; Ogaya, Roma ; Richter, Andreas ; Janssens, Ivan A. ; Penuelas, Josep | ||||
| Title | Decay of similitary across tropical forest communities: integrating spatial distance with soil nutrients | Type | Journal Article | ||
| Year | 2021 | Publication | Ecology | Abbreviated Journal | |
| Volume |
103 | Issue | 2 | Pages | e03599 |
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| Abstract | Understanding the mechanisms that drive the change of biotic assemblages over space and time is the main quest of community ecology. Assessing the relative importance of dispersal and environmental species selection in a range of organismic sizes and motilities has been a fruitful strategy. A consensus for whether spatial and environmental distances operate similarly across spatial scales and taxa, however, has yet to emerge. We used censuses of four major groups of organisms (soil bacteria, fungi, ground insects, and trees) at two observation scales (1-m2 sampling point vs. 2,500-m2 plots) in a topographically standardized sampling design replicated in two tropical rainforests with contrasting relationships between spatial distance and nutrient availability. We modeled the decay of assemblage similarity for each taxon set and site to assess the relative contributions of spatial distance and nutrient availability distance. Then, we evaluated the potentially structuring effect of tree composition over all other taxa. The similarity of nutrient content in the litter and topsoil had a stronger and more consistent selective effect than did dispersal limitation, particularly for bacteria, fungi, and trees at the plot level. Ground insects, the only group assessed with the capacity of active dispersal, had the highest species turnover and the flattest nonsignificant distance−decay relationship, suggesting that neither dispersal limitation nor nutrient availability were fundamental drivers of their community assembly at this scale of analysis. Only the fungal communities at one of our study sites were clearly coordinated with tree composition. The spatial distance at the smallest scale was more important than nutrient selection for the bacteria, fungi, and insects. The lower initial similarity and the moderate variation in composition identified by these distance-decay models, however, suggested that the effects of stochastic sampling were important at this smaller spatial scale. Our results highlight the importance of nutrients as one of the main environmental drivers of rainforest communities irrespective of organismic or propagule size and how the overriding effect of the analytical scale influences the interpretation, leading to the perception of greater importance of dispersal limitation and ecological drift over selection associated with environmental niches at decreasing observation scales. | ||||
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| Publisher | Ecological Society of America | Place of Publication | Editor | ||
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| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 1022 | ||
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| Author | Derory, J.; Scotti-Saintagne, C.; Bertocchi, E.; Le Dantec, L.; Graignic, N.; Jauffres, A.; Casasoli, M.; Chancerel, E.; Bodenes, C.; Alberto, F.; Kremer, A. | ||||
| Title | Contrasting relationships between the diversity of candidate genes and variation of bud burst in natural and segregating populations of European oaks | Type | Journal Article | ||
| Year | 2010 | Publication | Heredity | Abbreviated Journal | Heredity |
| Volume |
104 | Issue | 5 | Pages | 438-448 |
| Keywords | nucleotide diversity; candidate gene; QTL; Qeurcus petraea | ||||
| Abstract | Nucleotide diversity was assessed within nine candidate genes (CGs) (in total 4.6 kb) for the time of bud burst in nine sessile oak (Quercus petraea) populations distributed in central and northern Europe. The sampled populations were selected on the basis of their contrasting times of bud burst observed in common garden experiments (provenance tests). The CGs were selected according to their expression profiles during the transition from quiescent to developing buds and/or their functional role in model plants. The overall nucleotide diversity was large (pi(tot) = 6.15 x 10(-3); pi(silent) = 11.2 x 10(-3)), but population differentiation was not larger than for microsatellites. No outlier single-nucleotide polymorphism (SNP) departing from neutral expectation was found among the total of 125 SNPs. These results contrasted markedly with the significant associations that were observed between the CGs and bud burst in segregating populations. Quantitative trait loci (QTLs) for bud burst were identified for 13 year*site seasonal observations in a cloned mapping pedigree. Nineteen QTLs were detected, and QTLs located on linkage groups 2, 5 and 9 contributed repeatedly to more than 12% of the phenotypic variation of the trait. Eight genes were polymorphic in the two parents of the pedigree and could be mapped on the existing genetic map. Five of them located within the confidence intervals of QTLs for bud burst. Interestingly, four of them located within the three QTLs exhibiting the largest contributions to bud burst. Heredity (2010) 104, 438-448; doi:10.1038/hdy.2009.134; published online 7 October 2009 | ||||
| Address | [Derory, J.; Scotti-Saintagne, C.; Bertocchi, E.; Graignic, N.; Jauffres, A.; Casasoli, M.; Chancerel, E.; Bodenes, C.; Alberto, F.; Kremer, A.] INRA, BIOGECO UMR1202, F-33610 Cestas, France, Email: antoine.kremer@pierroton.inra.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | NATURE PUBLISHING GROUP | Place of Publication | Editor | ||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0018-067X | ISBN | Medium | ||
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| Notes | ISI:000276952000005 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 60 | ||
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| Author | Dejean, A.; Azémar, F.; Libert, M.; Compin, A.; Herault, B.; Orivel, J.; Bouyer, T.; Corbara, B. | ||||
| Title | Ant-lepidopteran associations along African forest edges | Type | Journal Article | ||
| Year | 2017 | Publication | The Science of Nature | Abbreviated Journal | |
| Volume |
104 | Issue | 1 | Pages | 7 |
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| Abstract | Working along forest edges, we aimed to determine how some caterpillars can co-exist with territorially dominant arboreal ants (TDAAs) in tropical Africa. We recorded caterpillars from 22 lepidopteran species living in the presence of five TDAA species. Among the defoliator and/or nectarivorous caterpillars that live on tree foliage, the Pyralidae and Nymphalidae use their silk to protect themselves from ant attacks. The Notodontidae and lycaenid Polyommatinae and Theclinae live in direct contact with ants; the Theclinae even reward ants with abundant secretions from their Newcomer gland. Lichen feeders (lycaenid; Poritiinae), protected by long bristles, also live among ants. Some lycaenid Miletinae caterpillars feed on ant-attended membracids, including in the shelters where the ants attend them; Lachnocnema caterpillars use their forelegs to obtain trophallaxis from their host ants. Caterpillars from other species live inside weaver ant nests. Those of the genus Euliphyra (Miletinae) feed on ant prey and brood and can obtain trophallaxis, while those from an Eberidae species only prey on host ant eggs. Eublemma albifascia (Erebidae) caterpillars use their thoracic legs to obtain trophallaxis and trophic eggs from ants. Through transfer bioassays of last instars, we noted that herbivorous caterpillars living in contact with ants were always accepted by alien conspecific ants; this is likely due to an intrinsic appeasing odor. Yet, caterpillars living in ant shelters or ant nests probably acquire cues from their host colonies because they were considered aliens and killed. We conclude that co-evolution with ants occurred similarly in the Heterocera and Rhopalocera. | ||||
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| ISSN | 1432-1904 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ Dejean2016 | Serial | 717 | ||
| Permanent link to this record | |||||
| Author | Derory, J.; Scotti-Saintagne, C.; Bertocchi, E.; Le Dantec, L.; Graignic, N.; Jauffres, A.; Casasoli, M.; Chancerel, E.; Bodenes, C.; Alberto, F.; Kremer, A. | ||||
| Title | Contrasting relations between diversity of candidate genes and variation of bud burst in natural and segregating populations of European oaks | Type | Journal Article | ||
| Year | 2010 | Publication | Heredity | Abbreviated Journal | Heredity |
| Volume |
105 | Issue | 4 | Pages | 401-411 |
| Keywords | nucleotide diversity; candidate gene; QTL; Quercus petraea | ||||
| Abstract | Nucleotide diversity was assessed within nine candidate genes (in total 4.6 kb) for the time of bud burst in nine sessile oak (Quercus petraea) populations distributed in central and northern Europe. The sampled populations were selected on the basis of their contrasting time of bud burst observed in common garden experiments (provenance tests). The candidate genes were selected according to their expression profiles during the transition from quiescent to developing buds and/or their functional role in model plants. The overall nucleotide diversity was large (pi(tot) – 6.15 x 10(-3); pi(silent) – 11.2 x 10(-3)), but population differentiation was not larger than for microsatellites. No outlier single-nucleotide polymorphism (SNP), departing from neutral expectation, was found among the total of 125 SNPs. These results contrasted markedly with the significant associations that were observed between the candidate genes and bud burst in segregating populations. Quantitative trait loci (QTLs) for bud burst were identified for 13 year*site seasonal observations in a cloned mapping pedigree. Nineteen QTLs were detected, and QTLs located on linkage groups 2, 5 and 9 contributed repeatedly to more than 12% of the phenotypic variation of the trait. Eight genes were polymorphic in the two parents of the pedigree and could be mapped on the existing genetic map. Five of them located within the confidence intervals of QTLs for bud burst. Interestingly, four of them located within the three QTLs exhibiting the largest contributions to bud burst. Heredity (2010) 105, 401-411; doi:10.1038/hdy.2009.170; published online 9 December 2009 | ||||
| Address | [Derory, J.; Scotti-Saintagne, C.; Bertocchi, E.; Graignic, N.; Jauffres, A.; Casasoli, M.; Chancerel, E.; Bodenes, C.; Alberto, F.; Kremer, A.] INRA, BIOGECO UMR1202, F-33610 Cestas, France, Email: antoine.kremer@pierroton.inra.fr | ||||
| Corporate Author | Thesis | ||||
| Publisher | NATURE PUBLISHING GROUP | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0018-067X | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | ISI:000282059900010 | Approved | no | ||
| Call Number | EcoFoG @ eric.marcon @ | Serial | 41 | ||
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