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Do, N.A.; Dias, D.; Zhang, Z.; Huang, X.; Nguyen, T.T.; Pham, V.V.; Nait-Rabah, O. |
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Title |
Study on the behavior of squared and sub-rectangular tunnels using the Hyperstatic Reaction Method |
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Journal Article |
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Year |
2020 |
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Transportation Geotechnics |
Abbreviated Journal |
Transp. Geotech. |
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22 |
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100321 |
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Finite element method; Lining; Squared shape; Sub-rectangular shape; Tunnel; efficiency measurement; finite element method; numerical model; transportation development; transportation planning; tunnel design; tunnel lining |
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Saint-Petersburg Mining University, Russian Federation |
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Elsevier Ltd |
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22143912 (Issn) |
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EcoFoG @ webmaster @ |
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915 |
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Nixon, S.; Agwa, A.; Robinson, S.; Walker, A.; Touchard, A.; Schroeder, C.; Vetter, I.; Kotze, A.C.; Herzig, V.; King, G.F. |
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Discovery and characterisation of novel peptides from Amazonian stinging ant venoms with antiparasitic activity |
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Journal Article |
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2020 |
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Toxicon |
Abbreviated Journal |
Toxicon |
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177 |
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1 |
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S60 |
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The Institute for Molecular Bioscience, The University of Queensland, Australia; CSIRO Agriculture and Food, Australia; CNRS, UMR Ecologie des forêts de Guyane, France |
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NLM (Medline) |
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18793150 (Issn) |
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EcoFoG @ webmaster @ |
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973 |
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Aili, S.R.; Touchard, A.; Hayward, R.; Robinson, S.D.; Pineda, S.S.; Lalagüe, H.; Mrinalini; Vetter, I.; Undheim, E.A.B.; Kini, R.M.; Escoubas, P.; Padula, M.P.; Myers, G.S.A.; Nicholson, G.M. |
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An integrated proteomic and transcriptomic analysis reveals the venom complexity of the bullet ant Paraponera clavata |
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Journal Article |
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Year |
2020 |
Publication |
Toxins |
Abbreviated Journal |
Toxins |
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12 |
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5 |
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Keywords |
DRG neurons; Hyaluronidase; Neurotoxins; Paraponeritoxin; Phospholipases; Rp-Hplc; alpha latrotoxin; ant venom; arginine kinase; cathepsin; contig; defensin 2; hyaluronidase; icarapin; metalloproteinase; neurotoxin; novel toxin like protein; phospholipase; phospholipase A2; poneratoxin; proteome; serine proteinase; transcriptome; unclassified drug; amino acid sequence; ant; Article; liquid chromatography-mass spectrometry; neurotoxicity; nonhuman; Paraponera clavata; protein expression; proteomics; sequence database; tandem mass spectrometry; transcriptomics; venom gland |
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A critical hurdle in ant venom proteomic investigations is the lack of databases to comprehensively and specifically identify the sequence and function of venom proteins and peptides. To resolve this, we used venom gland transcriptomics to generate a sequence database that was used to assign the tandem mass spectrometry (MS) fragmentation spectra of venom peptides and proteins to specific transcripts. This was performed alongside a shotgun liquid chromatography-mass spectrometry (LC-MS/MS) analysis of the venom to confirm that these assigned transcripts were expressed as proteins. Through the combined transcriptomic and proteomic investigation of Paraponera clavata venom, we identified four times the number of proteins previously identified using 2D-PAGE alone. In addition to this, by mining the transcriptomic data, we identified several novel peptide sequences for future pharmacological investigations, some of which conform with inhibitor cysteine knot motifs. These types of peptides have the potential to be developed into pharmaceutical or bioinsecticide peptides. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. |
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Faculty of Science, University of Nice, Nice, 06000, France |
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Mdpi Ag |
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20726651 (Issn) |
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EcoFoG @ webmaster @ |
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972 |
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Sullivan, M.J.P.; Lewis, S.L.; Affum-Baffoe, K.; Castilho, C.; Costa, F.; Sanchez, A.C.; Ewango, C.E.N.; Hubau, W.; Marimon, B.; Monteagudo-Mendoza, A.; Qie, L.; Sonké, B.; Martinez, R.V.; Baker, T.R.; Brienen, R.J.W.; Feldpausch, T.R.; Galbraith, D.; Gloor, M.; Malhi, Y.; Aiba, S.-I.; Alexiades, M.N.; Almeida, E.C.; de Oliveira, E.A.; Dávila, E.Á.; Loayza, P.A.; Andrade, A.; Vieira, S.A.; Aragão, L.E.O.C.; Araujo-Murakami, A.; Arets, E.J.M.M.; Arroyo, L.; Ashton, P.; Aymard C., G.; Baccaro, F.B.; Banin, L.F.; Baraloto, C.; Camargo, P.B.; Barlow, J.; Barroso, J.; Bastin, J.-F.; Batterman, S.A.; Beeckman, H.; Begne, S.K.; Bennett, A.C.; Berenguer, E.; Berry, N.; Blanc, L.; Boeckx, P.; Bogaert, J.; Bonal, D.; Bongers, F.; Bradford, M.; Brearley, F.Q.; Brncic, T.; Brown, F.; Burban, B.; Camargo, J.L.; Castro, W.; Céron, C.; Ribeiro, S.C.; Moscoso, V.C.; Chave, J.; Chezeaux, E.; Clark, C.J.; de Souza, F.C.; Collins, M.; Comiskey, J.A.; Valverde, F.C.; Medina, M.C.; da Costa, L.; Dančák, M.; Dargie, G.C.; Davies, S.; Cardozo, N.D.; de Haulleville, T.; de Medeiros, M.B.; del Aguila Pasquel, J.; Derroire, G.; Di Fiore, A.; Doucet, J.-L.; Dourdain, A.; Droissant, V.; Duque, L.F.; Ekoungoulou, R.; Elias, F.; Erwin, T.; Esquivel-Muelbert, A.; Fauset, S.; Ferreira, J.; Llampazo, G.F.; Foli, E.; Ford, A.; Gilpin, M.; Hall, J.S.; Hamer, K.C.; Hamilton, A.C.; Harris, D.J.; Hart, T.B.; Hédl, R.; Herault, B.; Herrera, R.; Higuchi, N.; Hladik, A.; Coronado, E.H.; Huamantupa-Chuquimaco, I.; Huasco, W.H.; Jeffery, K.J.; Jimenez-Rojas, E.; Kalamandeen, M.; Djuikouo, M.N.K.; Kearsley, E.; Umetsu, R.K.; Kho, L.K.; Killeen, T.; Kitayama, K.; Klitgaard, B.; Koch, A.; Labrière, N.; Laurance, W.; Laurance, S.; Leal, M.E.; Levesley, A.; Lima, A.J.N.; Lisingo, J.; Lopes, A.P.; Lopez-Gonzalez, G.; Lovejoy, T.; Lovett, J.C.; Lowe, R.; Magnusson, W.E.; Malumbres-Olarte, J.; Manzatto, Â.G.; Marimon, B.H.; Marshall, A.R.; Marthews, T.; de Almeida Reis, S.M.; Maycock, C.; Melgaço, K.; Mendoza, C.; Metali, F.; Mihindou, V.; Milliken, W.; Mitchard, E.T.A.; Morandi, P.S.; Mossman, H.L.; Nagy, L.; Nascimento, H.; Neill, D.; Nilus, R.; Vargas, P.N.; Palacios, W.; Camacho, N.P.; Peacock, J.; Pendry, C.; Peñuela Mora, M.C.; Pickavance, G.C.; Pipoly, J.; Pitman, N.; Playfair, M.; Poorter, L.; Poulsen, J.R.; Poulsen, A.D.; Preziosi, R.; Prieto, A.; Primack, R.B.; Ramírez-Angulo, H.; Reitsma, J.; Réjou-Méchain, M.; Correa, Z.R.; de Sousa, T.R.; Bayona, L.R.; Roopsind, A.; Rudas, A.; Rutishauser, E.; Abu Salim, K.; Salomão, R.P.; Schietti, J.; Sheil, D.; Silva, R.C.; Espejo, J.S.; Valeria, C.S.; Silveira, M.; Simo-Droissart, M.; Simon, M.F.; Singh, J.; Soto Shareva, Y.C.; Stahl, C.; Stropp, J.; Sukri, R.; Sunderland, T.; Svátek, M.; Swaine, M.D.; Swamy, V.; Taedoumg, H.; Talbot, J.; Taplin, J.; Taylor, D.; ter Steege, H.; Terborgh, J.; Thomas, R.; Thomas, S.C.; Torres-Lezama, A.; Umunay, P.; Gamarra, L.V.; van der Heijden, G.; van der Hout, P.; van der Meer, P.; van Nieuwstadt, M.; Verbeeck, H.; Vernimmen, R.; Vicentini, A.; Vieira, I.C.G.; Torre, E.V.; Vleminckx, J.; Vos, V.; Wang, O.; White, L.J.T.; Willcock, S.; Woods, J.T.; Wortel, V.; Young, K.; Zagt, R.; Zemagho, L.; Zuidema, P.A.; Zwerts, J.A.; Phillips, O.L. |
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Title |
Long-term thermal sensitivity of Earth’s tropical forests |
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Journal Article |
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Year |
2020 |
Publication |
Science |
Abbreviated Journal |
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Volume |
368 |
Issue |
6493 |
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869-874 |
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A key uncertainty in climate change models is the thermal sensitivity of tropical forests and how this value might influence carbon fluxes. Sullivan et al. measured carbon stocks and fluxes in permanent forest plots distributed globally. This synthesis of plot networks across climatic and biogeographic gradients shows that forest thermal sensitivity is dominated by high daytime temperatures. This extreme condition depresses growth rates and shortens the time that carbon resides in the ecosystem by killing trees under hot, dry conditions. The effect of temperature is worse above 32°C, and a greater magnitude of climate change thus risks greater loss of tropical forest carbon stocks. Nevertheless, forest carbon stocks are likely to remain higher under moderate climate change if they are protected from direct impacts such as clearance, logging, or fires.Science, this issue p. 869The sensitivity of tropical forest carbon to climate is a key uncertainty in predicting global climate change. Although short-term drying and warming are known to affect forests, it is unknown if such effects translate into long-term responses. Here, we analyze 590 permanent plots measured across the tropics to derive the equilibrium climate controls on forest carbon. Maximum temperature is the most important predictor of aboveground biomass (−9.1 megagrams of carbon per hectare per degree Celsius), primarily by reducing woody productivity, and has a greater impact per °C in the hottest forests (>32.2°C). Our results nevertheless reveal greater thermal resilience than observations of short-term variation imply. To realize the long-term climate adaptation potential of tropical forests requires both protecting them and stabilizing Earth’s climate. |
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EcoFoG @ webmaster @ |
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932 |
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Marino, N.A.C.; Céréghino, R.; Gilbert, B.; Petermann, J.S.; Srivastava, D.S.; de Omena, P.M.; Bautista, F.O.; Guzman, L.M.; Romero, G.Q.; Trzcinski, M.K.; Barberis, I.M.; Corbara, B.; Debastiani, V.J.; Dézerald, O.; Kratina, P.; Leroy, C.; MacDonald, A.A.M.; Montero, G.; Pillar, V.D.; Richardson, B.A.; Richardson, M.J.; Talaga, S.; Gonçalves, A.Z.; Piccoli, G.C.O.; Jocqué, M.; Farjalla, V.F. |
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Title |
Species niches, not traits, determine abundance and occupancy patterns: A multi-site synthesis |
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Journal Article |
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Year |
2020 |
Publication |
Global Ecology and Biogeography |
Abbreviated Journal |
Global Ecol. Biogeogr. |
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Volume |
29 |
Issue |
2 |
Pages |
295-308 |
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abundance; environmental niche; functional distinctiveness; functional traits; metacommunity; niche breadth; niche position; occupancy; abundance; biodiversity; functional group; geographical distribution; invertebrate; Neotropical Region; niche breadth; Invertebrata |
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Aim: Locally abundant species are usually widespread, and this pattern has been related to properties of the niches and traits of species. However, such explanations fail to account for the potential of traits to determine species niches and often overlook statistical artefacts. Here, we examine how trait distinctiveness determines the abilities of species to exploit either common habitats (niche position) or a range of habitats (niche breadth) and how niche position and breadth, in turn, affect abundance and occupancy. We also examine how statistical artefacts moderate these relationships. Location: Sixteen sites in the Neotropics. Time period: 1993–2014. Major taxa studied: Aquatic invertebrates from tank bromeliads. Methods: We measured the environmental niche position and breadth of each species and calculated its trait distinctiveness as the average trait difference from all other species at each site. Then, we used a combination of structural equation models and a meta-analytical approach to test trait–niche relationships and a null model to control for statistical artefacts. Results: The trait distinctiveness of each species was unrelated to its niche properties, abundance and occupancy. In contrast, niche position was the main predictor of abundance and occupancy; species that used the most common environmental conditions found across bromeliads were locally abundant and widespread. Contributions of niche breadth to such patterns were attributable to statistical artefacts, indicating that effects of niche breadth might have been overestimated in previous studies. Main conclusions: Our study reveals the generality of niche position in explaining one of the most common ecological patterns. The robustness of this result is underscored by the geographical extent of our study and our control of statistical artefacts. We call for a similar examination across other systems, which is an essential task to understand the drivers of commonness across the tree of life. © 2019 John Wiley & Sons Ltd |
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Aquatic and Terrestrial Ecology, Royal Belgian Institute of Natural Sciences, Brussels, Belgium |
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Blackwell Publishing Ltd |
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1466822x (Issn) |
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EcoFoG @ webmaster @ |
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991 |
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Urbina, I.; Grau, O.; Sardans, J.; Ninot, J.M.; Peñuelas, J. |
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Encroachment of shrubs into subalpine grasslands in the Pyrenees changes the plant-soil stoichiometry spectrum |
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Journal Article |
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Year |
2020 |
Publication |
Plant and Soil |
Abbreviated Journal |
Plant Soil |
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Volume |
448 |
Issue |
1-2 |
Pages |
37-53 |
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Keywords |
Nutrient stocks; Plant strategy; Plant-soil stoichiometry; Shrub encroachment; Subalpine grassland succession; aboveground biomass; biogeochemical cycle; carbon sequestration; ectomycorrhiza; fungus; grass; nitrogen; nutrient uptake; shrub; soil-vegetation interaction; stoichiometry; subalpine environment; succession; Europe; Pyrenees; Fungi |
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Aims: Shrub encroachment has been reported over a large proportion of the subalpine grasslands across Europe and is expected to have an important impact on the biogeochemical cycle of these ecosystems. We investigated the stoichiometric changes in the plant-soil system along the succession (e.g. increase in encroachment from unencroached grassland to mature shrubland) at two contrasting sites in the Pyrenees. Methods: We analyzed the chemical composition (C, N,15N, P, K, Ca, Mg and Fe) in the soil and in the aboveground plant compartments (leaves, leaf-litter and stems) of the main herbaceous species and shrubs at three contrasting stages of the succession: unencroached grassland, young shrubland and mature shrubland. Results: The plant-soil stoichiometry spectrum differed between the successional stages. Shrub encroachment generally increased the concentration of C and Ca and the C:N ratio and often reduced to concentrations of N, P and K in the leaves and leaf-litter, while several soil nutrient concentrations (N, P, K Ca and Mg) decreased. The stocks of C, N, P, Ca, and Mg in the total aboveground biomass increased with encroachment. Conclusions: Shrub encroachment favored the dominance of long-lived species with low concentrations of N and P in the plant-soil compartments, high C:nutrient ratios in the aboveground biomass and increase the uptake of N through ericoid or ectomycorrhizal fungi. We highlight the role of shrubs in the sequestration of C and nutrients through the allocation to the aboveground biomass. The changes in plant-soil elemental composition and stocks suggest a slowdown of the biogeochemical cycles in the subalpine mountain areas where shrub encroachment occurred. © 2020, Springer Nature Switzerland AG. |
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Biodiversity Research Institute (IRBio) and Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Barcelona, Catalonia, Spain |
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Springer |
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0032079x (Issn) |
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EcoFoG @ webmaster @ |
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983 |
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Levionnois, S.; Coste, S.; Nicolini, E.; Stahl, C.; Morel, H.; Heuret, P. |
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Scaling of petiole anatomies, mechanics and vasculatures with leaf size in the widespread Neotropical pioneer tree species Cecropia obtusa Trécul (Urticaceae) |
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Journal Article |
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Year |
2020 |
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Tree physiology |
Abbreviated Journal |
Tree Physiol. |
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40 |
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2 |
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245-258 |
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allometry; leaf size; petiole anatomy; scaling; theoretical hydraulic conductivity; vessel widening; xylem |
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Although the leaf economic spectrum has deepened our understanding of leaf trait variability, little is known about how leaf traits scale with leaf area. This uncertainty has resulted in the assumption that leaf traits should vary by keeping the same pace of variation with increases in leaf area across the leaf size range. We evaluated the scaling of morphological, tissue-surface and vascular traits with overall leaf area, and the functional significance of such scaling. We examined 1,271 leaves for morphological traits, and 124 leaves for anatomical and hydraulic traits, from 38 trees of Cecropia obtusa Trécul (Urticaceae) in French Guiana. Cecropia is a Neotropical genus of pioneer trees that can exhibit large laminas (0.4 m2 for C. obtusa), with leaf size ranging by two orders of magnitude. We measured (i) tissue fractions within petioles and their second moment of area, (ii) theoretical xylem hydraulic efficiency of petioles and (iii) the extent of leaf vessel widening within the hydraulic path. We found that different scaling of morphological trait variability allows for optimisation of lamina display among larger leaves, especially the positive allometric relationship between lamina area and petiole cross-sectional area. Increasing the fraction of pith is a key factor that increases the geometrical effect of supportive tissues on mechanical rigidity and thereby increases carbon-use efficiency. We found that increasing xylem hydraulic efficiency with vessel size results in lower leaf lamina area: xylem ratios, which also results in potential carbon savings for large leaves. We found that the vessel widening is consistent with hydraulic optimisation models. Leaf size variability modifies scaling of leaf traits in this large-leaved species. © The Author(s) 2020. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permission@oup.com. |
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UMR AMAP, CIRAD, CNRS, IRD, Université de Montpellier, Montpellier, 34398, France |
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NLM (Medline) |
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Export Date: 16 March 2020 |
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EcoFoG @ webmaster @ |
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921 |
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Servigne, P.; Orivel, J.; Azémar, F.; Carpenter, J.; Dejean, A.; Corbara, B. |
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An uneasy alliance: a nesting association between aggressive ants and equally fierce social wasps |
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Journal Article |
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Year |
2020 |
Publication |
Insect Science |
Abbreviated Journal |
Insect Science |
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27 |
Issue |
1 |
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122-132 |
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Azteca chartifex ants; interspecific association; mutualism; Polybia rejecta wasps; scent trail erasure |
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Although the Neotropical territorially dominant arboreal ant Azteca chartifex Forel is very aggressive towards any intruder, its populous colonies tolerate the close presence of the fierce polistine wasp Polybia rejecta (F.).
In French Guiana, 83.33% of the 48 P. rejecta nests recorded were found side by side with those of A. chartifex. This nesting association results in mutual protection from predators (i.e., the wasps protected from army ants; the ants protected from birds).
We conducted field studies, laboratory-based behavioral experiments and chemical analyses to elucidate the mechanisms allowing the persistence of this association. Due to differences in the cuticular profiles of the two species, we eliminated the possibility of chemical mimicry.
Also, analyses of the carton nests did not reveal traces of marking on the envelopes. Because ant forager flows were not perturbed by extracts from the wasps' Dufour's and venom glands, we rejected any hypothetical action of repulsive chemicals. Nevertheless, we noted that the wasps 'scraped' the surface of the upper part of their nest envelope using their mandibles, likely removing the ants' scent trails, and an experiment showed that ant foragers were perturbed by the removal of their scent trails. This leads us to use the term 'erasure hypothesis'. Thus, this nesting association persists thanks to a relative tolerance by the ants towards wasp presence and the behavior of the wasps that allows them to 'contain' their associated ants through the elimination of their scent trails, direct attacks, 'wing-buzzing' behavior and ejecting the ants. |
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John Wiley & Sons, Ltd (10.1111) |
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Notes |
doi: 10.1111/1744-7917.12597 |
Approved |
no |
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Call Number |
EcoFoG @ webmaster @ |
Serial |
885 |
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Author |
ter Steege, H.; Prado, P.I.; Lima, R.A.F.; Pos, E.; de Souza Coelho, L.; de Andrade Lima Filho, D.; Salomão, R.P.; Amaral, I.L.; de Almeida Matos, F.D.; Castilho, C.V.; Phillips, O.L.; Guevara, J.E.; de Jesus Veiga Carim, M.; Cárdenas López, D.; Magnusson, W.E.; Wittmann, F.; Martins, M.P.; Sabatier, D.; Irume, M.V.; da Silva Guimarães, J.R.; Molino, J.-F.; Bánki, O.S.; Piedade, M.T.F.; Pitman, N.C.A.; Ramos, J.F.; Monteagudo Mendoza, A.; Venticinque, E.M.; Luize, B.G.; Núñez Vargas, P.; Silva, T.S.F.; de Leão Novo, E.M.M.; Reis, N.F.C.; Terborgh, J.; Manzatto, A.G.; Casula, K.R.; Honorio Coronado, E.N.; Montero, J.C.; Duque, A.; Costa, F.R.C.; Castaño Arboleda, N.; Schöngart, J.; Zartman, C.E.; Killeen, T.J.; Marimon, B.S.; Marimon-Junior, B.H.; Vasquez, R.; Mostacedo, B.; Demarchi, L.O.; Feldpausch, T.R.; Engel, J.; Petronelli, P.; Baraloto, C.; Assis, R.L.; Castellanos, H.; Simon, M.F.; de Medeiros, M.B.; Quaresma, A.; Laurance, S.G.W.; Rincón, L.M.; Andrade, A.; Sousa, T.R.; Camargo, J.L.; Schietti, J.; Laurance, W.F.; de Queiroz, H.L.; Nascimento, H.E.M.; Lopes, M.A.; de Sousa Farias, E.; Magalhães, J.L.L.; Brienen, R.; Aymard C, G.A.; Revilla, J.D.C.; Vieira, I.C.G.; Cintra, B.B.L.; Stevenson, P.R.; Feitosa, Y.O.; Duivenvoorden, J.F.; Mogollón, H.F.; Araujo-Murakami, A.; Ferreira, L.V.; Lozada, J.R.; Comiskey, J.A.; de Toledo, J.J.; Damasco, G.; Dávila, N.; Lopes, A.; García-Villacorta, R.; Draper, F.; Vicentini, A.; Cornejo Valverde, F.; Lloyd, J.; Gomes, V.H.F.; Neill, D.; Alonso, A.; Dallmeier, F.; de Souza, F.C.; Gribel, R.; Arroyo, L.; Carvalho, F.A.; de Aguiar, D.P.P.; do Amaral, D.D.; Pansonato, M.P.; Feeley, K.J.; Berenguer, E.; Fine, P.V.A.; Guedes, M.C.; Barlow, J.; Ferreira, J.; Villa, B.; Peñuela Mora, M.C.; Jimenez, E.M.; Licona, J.C.; Cerón, C.; Thomas, R.; Maas, P.; Silveira, M.; Henkel, T.W.; Stropp, J.; Paredes, M.R.; Dexter, K.G.; Daly, D.; Baker, T.R.; Huamantupa-Chuquimaco, I.; Milliken, W.; Pennington, T.; Tello, J.S.; Pena, J.L.M.; Peres, C.A.; Klitgaard, B.; Fuentes, A.; Silman, M.R.; Di Fiore, A.; von Hildebrand, P.; Chave, J.; van Andel, T.R.; Hilário, R.R.; Phillips, J.F.; Rivas-Torres, G.; Noronha, J.C.; Prieto, A.; Gonzales, T.; de Sá Carpanedo, R.; Gonzales, G.P.G.; Gómez, R.Z.; de Jesus Rodrigues, D.; Zent, E.L.; Ruschel, A.R.; Vos, V.A.; Fonty, É.; Junqueira, A.B.; Doza, H.P.D.; Hoffman, B.; Zent, S.; Barbosa, E.M.; Malhi, Y.; de Matos Bonates, L.C.; de Andrade Miranda, I.P.; Silva, N.; Barbosa, F.R.; Vela, C.I.A.; Pinto, L.F.M.; Rudas, A.; Albuquerque, B.W.; Umaña, M.N.; Carrero Márquez, Y.A.; van der Heijden, G.; Young, K.R.; Tirado, M.; Correa, D.F.; Sierra, R.; Costa, J.B.P.; Rocha, M.; Vilanova Torre, E.; Wang, O.; Oliveira, A.A.; Kalamandeen, M.; Vriesendorp, C.; Ramirez-Angulo, H.; Holmgren, M.; Nascimento, M.T.; Galbraith, D.; Flores, B.M.; Scudeller, V.V.; Cano, A.; Ahuite Reategui, M.A.; Mesones, I.; Baider, C.; Mendoza, C.; Zagt, R.; Urrego Giraldo, L.E.; Ferreira, C.; Villarroel, D.; Linares-Palomino, R.; Farfan-Rios, W.; Farfan-Rios, W.; Casas, L.F.; Cárdenas, S.; Balslev, H.; Torres-Lezama, A.; Alexiades, M.N.; Garcia-Cabrera, K.; Valenzuela Gamarra, L.; Valderrama Sandoval, E.H.; Ramirez Arevalo, F.; Hernandez, L.; Sampaio, A.F.; Pansini, S.; Palacios Cuenca, W.; de Oliveira, E.A.; Pauletto, D.; Levesley, A.; Melgaço, K.; Pickavance, G. |
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Title |
Biased-corrected richness estimates for the Amazonian tree flora |
Type |
Journal Article |
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Year |
2020 |
Publication |
Scientific Reports |
Abbreviated Journal |
Sci. Rep. |
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Volume |
10 |
Issue |
10130 |
Pages |
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Keywords |
adult; article; averaging; flora; forest; population abundance |
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Abstract |
Amazonian forests are extraordinarily diverse, but the estimated species richness is very much debated. Here, we apply an ensemble of parametric estimators and a novel technique that includes conspecific spatial aggregation to an extended database of forest plots with up-to-date taxonomy. We show that the species abundance distribution of Amazonia is best approximated by a logseries with aggregated individuals, where aggregation increases with rarity. By averaging several methods to estimate total richness, we confirm that over 15,000 tree species are expected to occur in Amazonia. We also show that using ten times the number of plots would result in an increase to just ~50% of those 15,000 estimated species. To get a more complete sample of all tree species, rigorous field campaigns may be needed but the number of trees in Amazonia will remain an estimate for years to come. © 2020, The Author(s). |
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Address |
Instituto de Biodiversidade e Floresta, Universidade Federal do Oeste do Pará, Rua Vera Paz, Campus Tapajós, Santarém, PA 68015-110, Brazil |
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Thesis |
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Publisher |
Nature Research |
Place of Publication |
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Edition |
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ISSN |
20452322 (Issn) |
ISBN |
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Medium |
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Conference |
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Notes |
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Approved |
no |
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Call Number |
EcoFoG @ webmaster @ |
Serial |
946 |
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Author |
Shepard, W.D.; Clavier, S.; Cerdan, A. |
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Title |
A generic key to the known larval elmidae (Insecta: Coleoptera) of French Guiana |
Type |
Journal Article |
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Year |
2020 |
Publication |
Papeis Avulsos de Zoologia |
Abbreviated Journal |
Pap. Avulsos Zool. |
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Volume |
60 |
Issue |
Special |
Pages |
e202060 |
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Keywords |
Biodiversity; Identification; Immatures; Neotropical; Survey |
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Abstract |
An identification key is provided for 21 larval types of Elmidae (riffle beetles) known to occur in French Guiana. Not all elmid genera known to occur in French Guiana are known in the larval stage. Nor are all the known larval types assigned to known elmid genera. © 2020, Universidade de Sao Paulo. All rights reserved. |
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Address |
CNRS, UMR EcoFog (AgroParisTech, CIRAD, INRA, Université des Antilles, Université de Guyane), Kourou Cedex, France |
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Corporate Author |
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Thesis |
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Publisher |
Universidade de Sao Paulo |
Place of Publication |
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Summary Language |
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Original Title |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
00311049 (Issn) |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
no |
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Call Number |
EcoFoG @ webmaster @ |
Serial |
980 |
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