|   | 
Details
   web
Records
Author Vantaux, A.; Roux, O.; Magro, A.; Orivel, J.
Title Evolutionary perspectives on myrmecophily in ladybirds Type Journal Article
Year 2012 Publication Psyche Abbreviated Journal Psyche
Volume 591570 Issue Pages 1-7
Keywords
Abstract Myrmecophiles are species that usually have developed specialized traits to cope with the aggressiveness of ants enabling them to live in their vicinity. Many coccinellid species are predators of Hemiptera; the latter is also often protected by ants. Therefore these ladybirds frequently interact with ants, and some species have become myrmecophilous. In this paper, we aim to provide an overview of the evolution of myrmecophilous traits in ladybirds. We then discuss the costs and benefits of myrmecophily and the dietary shift to myrmecophagy observed in a few species. Copyright © 2012 Amélie Vantaux et al.
Address CNRS, UMR EcoFoG-Ecologie des Forêts de Guyane, Campus Agronomique, BP 316, 97379 Kourou Cedex, France
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 00332615 (Issn) ISBN Medium
Area Expedition Conference
Notes (up) Export Date: 28 March 2012; Source: Scopus; Art. No.: 591570; doi: 10.1155/2012/591570; Language of Original Document: English; Correspondence Address: Vantaux, A.; Entomology Laboratory, Zoological Institute, Catholic University of Leuven, Naamsestraat 59, 3000 Leuven, Belgium; email: amelie.vantaux@gmail.com Approved no
Call Number EcoFoG @ webmaster @ Serial 388
Permanent link to this record
 

 
Author Lacau, S.; Groc, S.; Dejean, A.; Oliveira, M.L.D.; Delabie, J.H.C.
Title Tatuidris kapasi sp. nov.: A new armadillo ant from French Guiana (Formicidae: Agroecomyrmecinae) Type Journal Article
Year 2012 Publication Psyche Abbreviated Journal Psyche
Volume 926089 Issue Pages 1-6
Keywords
Abstract Tatuidris kapasi sp. nov. (Formicidae: Agroecomyrmecinae), the second known species of “armadillo ant”, is described after a remarkable specimen collected in French Guiana. This species can be easily distinguished from Tatuidris tatusia by characters related to the shape of the mesosoma and petiole as well as to the pilosity, the sculpture, and the color. Copyright © 2012 Sébastien Lacau et al.
Address Laboratório de Mirmecologia, CEPLAC/CEPEC/SECEN, CP 07, km 22, Rodovia, Ilhéus-Itabuna, 45600-970 Itabuna, BA, Brazil
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 00332615 (Issn) ISBN Medium
Area Expedition Conference
Notes (up) Export Date: 28 March 2012; Source: Scopus; Art. No.: 926089; doi: 10.1155/2012/926089; Language of Original Document: English; Correspondence Address: Lacau, S.; Laboratório de Biossistemática Animal, Universidade Estadual Do Sudoeste da Bahia, UESB/DEBI, 45700-000 Itapetinga, BA, Brazil; email: slacau@cepec.gov.br Approved no
Call Number EcoFoG @ webmaster @ Serial 389
Permanent link to this record
 

 
Author Marcon, E.; Herault, B.; Baraloto, C.; Lang, G.
Title The decomposition of Shannon's entropy and a confidence interval for beta diversity Type Journal Article
Year 2012 Publication Oikos Abbreviated Journal Oikos
Volume 121 Issue 4 Pages 516-522
Keywords
Abstract Beta diversity is among the most employed theoretical concepts in ecology and biodiversity conservation. Up to date, a self-contained definition of it, with no reference to alpha and gamma diversity, has never been proposed. Using Kullback-Leibler divergence, we present the explicit formula of Shannon's β entropy, a bias correction for its estimator and a confidence interval. We also provide the mathematical framework to decompose Shannon diversity into several hierarchical nested levels. From botanical inventories of tropical forest plots in French Guiana, we estimate Shannon diversity at the plot, forest and regional level. We believe this is a complete and usefulness toolbox for ecologists interested in partitioning biodiversity. © 2011 The Authors. Oikos © 2012 Nordic Society Oikos.
Address AgroParisTech, UMR 518 Math. Info. Appli., 16 rue Claude Bernard, FR-75005 Paris, France
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 00301299 (Issn) ISBN Medium
Area Expedition Conference
Notes (up) Export Date: 28 March 2012; Source: Scopus; Coden: Oiksa; doi: 10.1111/j.1600-0706.2011.19267.x; Language of Original Document: English; Correspondence Address: Marcon, E.; AgroParisTech, UMR EcoFoG, BP 709, FR-97310 Kourou, France; email: eric.marcon@ecofog.gf Approved no
Call Number EcoFoG @ webmaster @ Serial 386
Permanent link to this record
 

 
Author Young, E.F.; Belchier, M.; Hauser, L.; Horsburgh, G.J.; Meredith, M.P.; Murphy, E.J.; Pascoal, S.; Rock, J.; Tysklind, N.; Carvalho, G.R.
Title Oceanography and life history predict contrasting genetic population structure in two Antarctic fish species Type Journal Article
Year 2015 Publication Evolutionary Applications Abbreviated Journal Evolutionary Applications
Volume 8 Issue 5 Pages 486-509
Keywords Notothenia rossii; Champsocephalus gunnari; Connectivity; Individual-based Modelling; Ocean circulation; Planktonic dispersal; Population genetics; Scotia Sea
Abstract Understanding the key drivers of population connectivity in the marine environment is essential for the effective management of natural resources. Although several different approaches to evaluating connectivity have been used, they are rarely integrated quantitatively. Here, we use a 'seascape genetics' approach, by combining oceanographic modelling and microsatellite analyses, to understand the dominant influences on the population genetic structure of two Antarctic fishes with contrasting life histories, Champsocephalus gunnari and Notothenia rossii. The close accord between the model projections and empirical genetic structure demonstrated that passive dispersal during the planktonic early life stages is the dominant influence on patterns and extent of genetic structuring in both species. The shorter planktonic phase of C. gunnari restricts direct transport of larvae between distant populations, leading to stronger regional differentiation. By contrast, geographic distance did not affect differentiation in N. rossii, whose longer larval period promotes long-distance dispersal. Interannual variability in oceanographic flows strongly influenced the projected genetic structure, suggesting that shifts in circulation patterns due to climate change are likely to impact future genetic connectivity and opportunities for local adaptation, resilience and recovery from perturbations. Further development of realistic climate models is required to fully assess such potential impacts. © 2015 The Authors.
Address Campus Agronomique, Kourou Cedex, France
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes (up) Export Date: 28 May 2015 Approved no
Call Number EcoFoG @ webmaster @ Serial 604
Permanent link to this record
 

 
Author Jaouen, G.; Sagne, A.; Buyck, B.; Decock, C.; Louisanna, E.; Manzi, S.; Baraloto, C.; Roy, M.; Schimann, H.
Title Fungi of French Guiana gathered in a taxonomic, environmental and molecular dataset Type Journal Article
Year 2019 Publication Scientific data Abbreviated Journal
Volume 6 Issue 206 Pages
Keywords
Abstract In Amazonia, the knowledge about Fungi remains patchy and biased towards accessible sites. This is particularly the case in French Guiana where the existing collections have been confined to few coastal localities. Here, we aimed at filling the gaps of knowledge in undersampled areas of this region, particularly focusing on the Basidiomycota. From 2011, we comprehensively collected fruiting-bodies with a stratified and reproducible sampling scheme in 126 plots. Sites of sampling reflected the main forest habitats of French Guiana in terms of soil fertility and topography. The dataset of 5219 specimens gathers 245 genera belonging to 75 families, 642 specimens are barcoded. The dataset is not a checklist as only 27% of the specimens are identified at the species level but 96% are identified at the genus level. We found an extraordinary diversity distributed across forest habitats. The dataset is an unprecedented and original collection of Basidiomycota for the region, making specimens available for taxonomists and ecologists. The database is publicly available in the GBIF repository ( https://doi.org/10.15468/ymvlrp ).
Address Department of Biological Science, Florida International University, FL, Miami, 33199, United States
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes (up) Export Date: 28 October 2019 Approved no
Call Number EcoFoG @ webmaster @ Serial 891
Permanent link to this record
 

 
Author Zalamea, P.-C.; Heuret, P.; Sarmiento, C.; Rodríguez, M.; Berthouly, A.; Guitet, S.; Nicolini, E.; Delnatte, C.; Barthélémy, D.; Stevenson, P.R.
Title The genus Cecropia: A biological clock to estimate the age of recently disturbed areas in the neotropics Type Journal Article
Year 2012 Publication PLoS ONE Abbreviated Journal PLoS ONE
Volume 7 Issue 8 Pages e42643
Keywords
Abstract Forest successional processes following disturbance take decades to play out, even in tropical forests. Nonetheless, records of vegetation change in this ecosystem are scarce, increasing the importance of the chronosequence approach to study forest recovery. However, this approach requires accurate dating of secondary forests, which until now was a difficult and/or expensive task. Cecropia is a widespread and abundant pioneer tree genus of the Neotropics. Here we propose and validate a rapid and straightforward method to estimate the age of secondary forest patches based on morphological observations of Cecropia trees. We found that Cecropia-inferred ages were highly correlated with known ages of the forest. We also demonstrate that Cecropia can be used to accurately date disturbances and propose twenty-one species distributed all over the geographical range of the genus as potential secondary forest chronometer species. Our method is limited in applicability by the maximal longevity of Cecropia individuals. Although the oldest chronosequence used in this study was 20 years old, we argue that at least for the first four decades after disturbance, the method described in this study provides very accurate estimations of secondary forest ages. The age of pioneer trees provides not only information needed to calculate the recovery of carbon stocks that would help to improve forest management, but also provides information needed to characterize the initial floristic composition and the rates of species remigration into secondary forest. Our contribution shows how successional studies can be reliably and inexpensively extended without the need to obtain forest ages based on expensive or potentially inaccurate data across the Neotropics. © 2012 Zalamea et al.
Address Smithsonian Tropical Research Institute, Ancón, Panama
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 19326203 (Issn) ISBN Medium
Area Expedition Conference
Notes (up) Export Date: 29 August 2012; Source: Scopus; Art. No.: e42643; doi: 10.1371/journal.pone.0042643; Language of Original Document: English; Correspondence Address: Zalamea, P.-C.; Smithsonian Tropical Research Institute, Ancón, Panama; email: camilozalamea@gmail.com Approved no
Call Number EcoFoG @ webmaster @ Serial 424
Permanent link to this record
 

 
Author Verheyen, K.; Vanhellemont, M.; Auge, H.; Baeten, L.; Baraloto, C.; Barsoum, N.; Bilodeau-Gauthier, S.; Bruelheide, H.; Castagneyrol, B.; Godbold, D.; Haase, J.; Hector, A.; Jactel, H.; Koricheva, J.; Loreau, M.; Mereu, S.; Messier, C.; Muys, B.; Nolet, P.; Paquette, A.; Parker, J.; Perring, M.; Ponette, Q.; Potvin, C.; Reich, P.; Smith, A.; Weih, M.; Scherer-Lorenzen, M.
Title Contributions of a global network of tree diversity experiments to sustainable forest plantations Type Journal Article
Year 2016 Publication Ambio Abbreviated Journal Ambio
Volume 45 Issue 1 Pages 29-41
Keywords Biodiversity experiments; Ecological restoration; Functional biodiversity research; Plantation forest; Sustainable forest management
Abstract The area of forest plantations is increasing worldwide helping to meet timber demand and protect natural forests. However, with global change, monospecific plantations are increasingly vulnerable to abiotic and biotic disturbances. As an adaption measure we need to move to plantations that are more diverse in genotypes, species, and structure, with a design underpinned by science. TreeDivNet, a global network of tree diversity experiments, responds to this need by assessing the advantages and disadvantages of mixed species plantations. The network currently consists of 18 experiments, distributed over 36 sites and five ecoregions. With plantations 1–15 years old, TreeDivNet can already provide relevant data for forest policy and management. In this paper, we highlight some early results on the carbon sequestration and pest resistance potential of more diverse plantations. Finally, suggestions are made for new, innovative experiments in understudied regions to complement the existing network. © 2015, Royal Swedish Academy of Sciences.
Address Department of Crop Production Ecology, Swedish University of Agricultural Sciences, PO Box 7043, Uppsala, Sweden
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes (up) Export Date: 29 January 2016 Approved no
Call Number EcoFoG @ webmaster @ Serial 652
Permanent link to this record
 

 
Author Dézerald, O.; Leroy, C.; Corbara, B.; Dejean, A.; Talaga, S.; Céréghino, R.
Title Tank bromeliads sustain high secondary production in neotropical forests Type Journal Article
Year 2018 Publication Aquatic Sciences Abbreviated Journal
Volume 80 Issue 14 Pages
Keywords Biomass turnover; Epiphytes; Food webs; Functional traits; Invertebrates; Rainforests
Abstract In neotropical landscapes, a substantial fraction of the still waters available is found within tank bromeliads, plants which hold a few milliliters to several litres of rainwater within their leaf axils. The bromeliad ecosystem is integrated into the functioning of rainforest environments, but no study has ever estimated the secondary production, nor the biomass turnover rates of bromeliad macroinvertebrates in relation to other functional traits. We estimated secondary production at invertebrate population to metacommunity level in bromeliads of French Guiana. Coleoptera, Diptera and Crustacea with traits that confer resistance to drought had lower biomass turnover, longer generation times, and slower individual growth than species without particular resistance traits, suggesting convergent life history strategies in phylogenetically distant species. Detritivores and predators accounted for 87% and 13% of the overall annual production, respectively, but had similar production to biomass ratios. An average bromeliad sustained a production of 23.93 g dry mass m−2 year−1, a value which exceeds the medians of 5.0–14.8 g DM m−2 year−1 for lakes and rivers worldwide. Extrapolations to the total water volumes held by bromeliads at our field site yielded secondary production estimates of 226.8 ± 32.5 g DM ha−1 year−1. We conclude that the ecological role of tank bromeliads in neotropical rainforests may be as important as that of other freshwater ecosystems. © 2018, Springer International Publishing AG, part of Springer Nature.
Address Université de Guyane, UMR Écologie des Forêts de Guyane (AgroParisTech, CIRAD, CNRS, INRA, Université des Antilles), Campus Agronomique, BP 316, Kourou cedex, France
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes (up) Export Date: 29 January 2018 Approved no
Call Number EcoFoG @ webmaster @ Serial 790
Permanent link to this record
 

 
Author Solander, K.C.; Newman, B.D.; Carioca De Araujo, A.; Barnard, H.R.; Berry, Z.C.; Bonal, D.; Bretfeld, M.; Burban, B.; Candido, L.A.; Célleri, R.; Chambers, J.Q.; Christoffersen, B.O.; Detto, M.; Dorigo, W.A.; Ewers, B.E.; Ferreira, S.J.F.; Knohl, A.; Leung, L.R.; McDowell, N.G.; Miller, G.R.; Monteiro, M.T.F.; Moore, G.W.; Negron-Juarez, R.; Saleska, S.R.; Stiegler, C.; Tomasella, J.; Xu, C.
Title The pantropical response of soil moisture to El Niño Type Journal Article
Year 2020 Publication Hydrology and Earth System Sciences Abbreviated Journal Hydrol. Earth Syst. Sci.
Volume 24 Issue 5 Pages 2303-2322
Keywords Cluster analysis; Oceanography; Soil moisture; Surface waters; Tropics; Climate anomalies; Clustered datum; Hydrologic changes; Land data assimilation systems; Sea surface temperature anomalies; Situ soil moistures; Tropical hydrologies; Tropical Pacific ocean; Soil surveys
Abstract The 2015–2016 El Niño event ranks as one of the most severe on record in terms of the magnitude and extent of sea surface temperature (SST) anomalies generated in the tropical Pacific Ocean. Corresponding global impacts on the climate were expected to rival, or even surpass, those of the 1997–1998 severe El Niño event, which had SST anomalies that were similar in size. However, the 2015–2016 event failed to meet expectations for hydrologic change in many areas, including those expected to receive well above normal precipitation. To better understand how climate anomalies during an El Niño event impact soil moisture, we investigate changes in soil moisture in the humid tropics (between ±25∘) during the three most recent super El Niño events of 1982–1983, 1997–1998 and 2015–2016, using data from the Global Land Data Assimilation System (GLDAS). First, we use in situ soil moisture observations obtained from 16 sites across five continents to validate and bias-correct estimates from GLDAS (r2=0.54). Next, we apply a k-means cluster analysis to the soil moisture estimates during the El Niño mature phase, resulting in four groups of clustered data. The strongest and most consistent decreases in soil moisture occur in the Amazon basin and maritime southeastern Asia, while the most consistent increases occur over eastern Africa. In addition, we compare changes in soil moisture to both precipitation and evapotranspiration, which showed a lack of agreement in the direction of change between these variables and soil moisture most prominently in the southern Amazon basin, the Sahel and mainland southeastern Asia. Our results can be used to improve estimates of spatiotemporal differences in El Niño impacts on soil moisture in tropical hydrology and ecosystem models at multiple scales.
Address Coordination of Research and Development, National Centre for Monitoring and Early Warning of Natural Disasters, Cachoeira Paulista, Brazil
Corporate Author Thesis
Publisher Copernicus GmbH Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 10275606 (Issn) ISBN Medium
Area Expedition Conference
Notes (up) Export Date: 29 May 2020; Correspondence Address: Solander, K.C.; Earth and Environmental Sciences, Los Alamos National LaboratoryUnited States; email: ksolander@lanl.gov Approved no
Call Number EcoFoG @ webmaster @ Serial 934
Permanent link to this record
 

 
Author Dejean, A.; Cereghino, R.; Carpenter, J.M.; Corbara, B.; Herault, B.; Rossi, V.; Leponce, M.; Orivel, J.; Bonal, D.
Title Climate change impact on neotropical social wasps Type Journal Article
Year 2011 Publication PLoS One Abbreviated Journal PLoS ONE
Volume 6 Issue 11 Pages e27004
Keywords
Abstract Establishing a direct link between climate change and fluctuations in animal populations through long-term monitoring is difficult given the paucity of baseline data. We hypothesized that social wasps are sensitive to climatic variations, and thus studied the impact of ENSO events on social wasp populations in French Guiana. We noted that during the 2000 La Niña year there was a 77.1% decrease in their nest abundance along ca. 5 km of forest edges, and that 70.5% of the species were no longer present. Two simultaneous 13-year surveys (1997-2009) confirmed the decrease in social wasps during La Niña years (2000 and 2006), while an increase occurred during the 2009 El Niño year. A 30-year weather survey showed that these phenomena corresponded to particularly high levels of rainfall, and that temperature, humidity and global solar radiation were correlated with rainfall. Using the Self-Organizing Map algorithm, we show that heavy rainfall during an entire rainy season has a negative impact on social wasps. Strong contrasts in rainfall between the dry season and the short rainy season exacerbate this effect. Social wasp populations never recovered to their pre-2000 levels. This is probably because these conditions occurred over four years; heavy rainfall during the major rainy seasons during four other years also had a detrimental effect. On the contrary, low levels of rainfall during the major rainy season in 2009 spurred an increase in social wasp populations. We conclude that recent climatic changes have likely resulted in fewer social wasp colonies because they have lowered the wasps' resistance to parasitoids and pathogens. These results imply that Neotropical social wasps can be regarded as bio-indicators because they highlight the impact of climatic changes not yet perceptible in plants and other animals. © 2011 Dejean et al.
Address INRA – Nancy, UMR EEF, Champenou, Nancy, France
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 19326203 (Issn) ISBN Medium
Area Expedition Conference
Notes (up) Export Date: 29 November 2011; Source: Scopus; Art. No.: e27004; doi: 10.1371/journal.pone.0027004; Language of Original Document: English; Correspondence Address: Dejean, A.; CNRS – UMR 8172, Écologie des Forêts de Guyane (Ecofog), Campus Agronomique, BP 709, Kourou, France; email: alain.dejean@wanadoo.fr Approved no
Call Number EcoFoG @ webmaster @ Serial 372
Permanent link to this record