Dataset Information

A multiple hypothesis approach to explain species richness patterns in neotropical stream-dweller fish communities.

ABSTRACT: Several hypotheses are used to explain species richness patterns. Some of them (e.g. species-area, species-energy, environment-energy, water-energy, terrestrial primary productivity, environmental spatial heterogeneity, and climatic heterogeneity) are known to explain species richness patterns of terrestrial organisms, especially when they are combined. For aquatic organisms, however, it is unclear if these hypotheses can be useful to explain for these purposes. Therefore, we used a selection model approach to assess the predictive capacity of such hypotheses, and to determine which of them (combined or not) would be the most appropriate to explain the fish species distribution in small Brazilian streams. We perform the Akaike's information criteria for models selections and the eigenvector analysis to control the special autocorrelation. The spatial structure was equal to 0.453, Moran's I, and require 11 spatial filters. All models were significant and had adjustments ranging from 0.370 to 0.416 with strong spatial component (ranging from 0.226 to 0.369) and low adjustments for environmental data (ranging from 0.001 to 0.119) We obtained two groups of hypothesis are able to explain the richness pattern (1) water-energy, temporal productivity-heterogeneity (AIC = 4498.800) and (2) water-energy, temporal productivity-heterogeneity and area (AIC = 4500.400). We conclude that the fish richness patterns in small Brazilian streams are better explained by a combination of Water-Energy + Productivity + Temporal Heterogeneity hypotheses and not by just one.

SUBMITTER: Vieira TB

PROVIDER: S-EPMC6145546 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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A multiple hypothesis approach to explain species richness patterns in neotropical stream-dweller fish communities.

Vieira Thiago Bernardi TB Pavanelli Carla Simone CS Casatti Lilian L Smith Welber Senteio WS Benedito Evanilde E Mazzoni Rosana R Sánchez-Botero Jorge Iván JI Garcez Danielle Sequeira DS Lima Sergio Maia Queiroz SMQ Pompeu Paulo Santos PS Agostinho Carlos Sérgio CS Montag Luciano Fogaça de Assis LFA Zuanon Jansen J Aquino Pedro De Podestà Uchôa de PPU Cetra Mauricio M Tejerina-Garro Francisco Leonardo FL Duboc Luiz Fernando LF Corrêa Ruanny Casarim RC Pérez-Mayorga María Angélica MA Brejão Gabriel Lourenço GL Mateussi Nadayca Thayane Bonani NTB Castro Míriam Aparecida de MA Leitão Rafael Pereira RP Mendonça Fernando Pereira de FP Silva Leandra Rose Palheta da LRPD Frederico Renata R De Marco Paulo P

PloS one 20180919 9

Several hypotheses are used to explain species richness patterns. Some of them (e.g. species-area, species-energy, environment-energy, water-energy, terrestrial primary productivity, environmental spatial heterogeneity, and climatic heterogeneity) are known to explain species richness patterns of terrestrial organisms, especially when they are combined. For aquatic organisms, however, it is unclear if these hypotheses can be useful to explain for these purposes. Therefore, we used a selection mo ...[more]

PMID: 30231064

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Dataset Information

A multiple hypothesis approach to explain species richness patterns in neotropical stream-dweller fish communities.

Publications

A multiple hypothesis approach to explain species richness patterns in neotropical stream-dweller fish communities.

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