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Unexpected fish diversity gradients in the Amazon basin ArchiMer
Oberdorff, Thierry; Dias, Murilo S.; Jézéquel, Céline; Albert, James S; Arantes, Caroline C.; Bigorne, Rémy; Carvajal-valleros, Fernando M.; De Wever, Aaike; Frederico, R. G.; Hidalgo, Max; Hugueny, Bernard; Leprieur, Fabien; Maldonado, Mabel; Maldonado-ocampo, Javier; Martens, Koen; Ortega, Hernan; Sarmiento, Jaime; Tedesco, Pablo A; Torrente-vilara, Gislene; Winemiller, Kirk O.; Zuanon, Jansen.
Using the most comprehensive fish occurrence database, we evaluated the importance of ecological and historical drivers in diversity patterns of subdrainage basins across the Amazon system. Linear models reveal the influence of climatic conditions, habitat size and sub-basin isolation on species diversity. Unexpectedly, the species richness model also highlighted a negative upriver-downriver gradient, contrary to predictions of increasing richness at more downriver locations along fluvial gradients. This reverse gradient may be linked to the history of the Amazon drainage network, which, after isolation as western and eastern basins throughout the Miocene, only began flowing eastward 1–9 million years (Ma) ago. Our results suggest that the main center of...
Tipo: Text
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00589/70119/68101.pdf
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A global database for metacommunity ecology, integrating species, traits, environment and space ArchiMer
Jeliazkov, Alienor; Mijatovic, Darko; Chantepie, Stéphane; Andrew, Nigel; Arlettaz, Raphaël; Barbaro, Luc; Barsoum, Nadia; Bartonova, Alena; Belskaya, Elena; Bonada, Núria; Brind'Amour, Anik; Carvalho, Rodrigo; Castro, Helena; Chmura, Damian; Choler, Philippe; Chong-seng, Karen; Cleary, Daniel; Cormont, Anouk; Cornwell, William; De Campos, Ramiro; De Voogd, Nicole; Doledec, Sylvain; Drew, Joshua; Dziock, Frank; Eallonardo, Anthony; Edgar, Melanie J.; Farneda, Fábio; Hernandez, Domingo Flores; Frenette-dussault, Cédric; Fried, Guillaume; Gallardo, Belinda; Gibb, Heloise; Gonçalves-souza, Thiago; Higuti, Janet; Humbert, Jean-yves; Krasnov, Boris R.; Saux, Eric Le; Lindo, Zoe; Lopez-baucells, Adria; Lowe, Elizabeth; Marteinsdottir, Bryndis; Martens, Koen; Meffert, Peter; Mellado-díaz, Andres; Menz, Myles H. M.; Meyer, Christoph F. J.; Miranda, Julia Ramos; Mouillot, David; Ossola, Alessandro; Pakeman, Robin; Pavoine, Sandrine; Pekin, Burak; Pino, Joan; Pocheville, Arnaud; Pomati, Francesco; Poschlod, Peter; Prentice, Honor C.; Purschke, Oliver; Raevel, Valerie; Reitalu, Triin; Renema, Willem; Ribera, Ignacio; Robinson, Natalie; Robroek, Bjorn; Rocha, Ricardo; Shieh, Sen-her; Spake, Rebecca; Staniaszek-kik, Monika; Stanko, Michal; Tejerina-garro, Francisco Leonardo; Braak, Cajo Ter; Urban, Mark C.; Klink, Roel Van; Villéger, Sébastien; Wegman, Ruut; Westgate, Martin J.; Wolff, Jonas; Żarnowiec, Jan; Zolotarev, Maxim; Chase, Jonathan M..
The use of functional information in the form of species traits plays an important role in explaining biodiversity patterns and responses to environmental changes. Although relationships between species composition, their traits, and the environment have been extensively studied on a case-by-case basis, results are variable, and it remains unclear how generalizable these relationships are across ecosystems, taxa and spatial scales. To address this gap, we collated 80 datasets from trait-based studies into a global database for metaCommunity Ecology: Species, Traits, Environment and Space; “CESTES”. Each dataset includes four matrices: species community abundances or presences/absences across multiple sites, species trait information, environmental...
Tipo: Text
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00604/71606/70047.pdf
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Homology and functional morphology of the sexual dimorphism in the antenna of Sclerocypris Sars, 1924 (Crustacea, Ostracoda, Megalocypridinae) Naturalis
Martens, Koen.
The sexual dimorphism in the chaetotaxy of the antenna in various species of Sclerocypris is studied and described. Relying on larval morphology, a homology between the patterns in the two sexes is deduced and a suitable nomenclature for the apomorphic male condition is proposed. The differences observed are in all probability related to the function of the male antenna during copulation.
Tipo: Article / Letter to the editor
Ano: 1987 URL: http://www.repository.naturalis.nl/record/504281
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