Community size can affect the signals of ecological drift and niche selection on biodiversity
| Autor: | Jenny Jyrkänkallio-Mikkola, Luis Mauricio Bini, Tadeu Siqueira, Victor Lemes Landeiro, Kimmo Tolonen, Victor S. Saito, Jani Heino, Adriano S. Melo, Janne Soininen, Danielle Katharine Petsch |
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| Přispěvatelé: | Department of Geosciences and Geography, Helsinki Institute of Sustainability Science (HELSUS), Biosciences, Universidade Estadual Paulista (Unesp), Universidade Federal de São Carlos (UFSCar), Universidade Federal de Goiás (UFG), Universidade Federal do Rio Grande do Sul, Universidade Estadual de Maringá (UEM), Universidade Federal de Mato Grosso, University of Jyväskylä, University of Helsinki, WWF Finland, Freshwater Centre |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
METACOMMUNITIES Niche null models Beta diversity Biodiversity dispersal metacommunities 010603 evolutionary biology 01 natural sciences COLONIZATION DISPERSAL CONNECTIVITY Abundance (ecology) TROPICAL STREAM beta-diversity deviation 14. Life underwater dispersal DISTURBANCE BETA-DIVERSITY Relative species abundance Ecosystem Finland Ecology Evolution Behavior and Systematics RESTORATION demographic stochasticity β-diversity deviation vesieläimistö Ecology 010604 marine biology & hydrobiology Small population size beta diversity deviation 15. Life on land Biota luonnon monimuotoisuus biodiversiteetti Geography Habitat destruction 13. Climate action 1181 Ecology evolutionary biology SIMILARITY PATTERNS hyönteiset community assembly Species richness aquatic insects metacommunities Brazil |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2020-12-12T01:24:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-06-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Academy of Finland Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Ecological drift can override the effects of deterministic niche selection on small populations and drive the assembly of some ecological communities. We tested this hypothesis with a unique data set sampled identically in 200 streams in two regions (tropical Brazil and boreal Finland) that differ in macroinvertebrate community size by fivefold. Null models allowed us to estimate the magnitude to which β-diversity deviates from the expectation under a random assembly process while taking differences in richness and relative abundance into account, i.e., β-deviation. We found that both abundance- and incidence-based β-diversity was negatively related to community size only in Brazil. Also, β-diversity of small tropical communities was closer to stochastic expectations compared with β-diversity of large communities. We suggest that ecological drift may drive variation in some small communities by changing the expected outcome of niche selection, increasing the chances of species with low abundance and narrow distribution to occur in some communities. Habitat destruction, overexploitation, pollution, and reductions in connectivity have been reducing the size of biological communities. These environmental pressures might make smaller communities more vulnerable to novel conditions and render community dynamics more unpredictable. Incorporation of community size into ecological models should provide conceptual and applied insights into a better understanding of the processes driving biodiversity. Institute of Biosciences São Paulo State University (UNESP), Avenida 24 A 1515 Departamento de Ciências Ambientais Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luis, km 235 Departamento de Ecologia ICB Universidade Federal de Goiás, Avenida Esperança s/n, Câmpus Samambaia Departamento de Ecologia IB Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves 9500 Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais Universidade Estadual de Maringá, Av. Colombo 5790 Departamento de Botânica e Ecologia IB Universidade Federal de Mato Grosso, Bairro Boa Esperança Department of Biological and Environmental Science University of Jyväskylä, P.O. Box 35 Department of Geosciences and Geography University of Helsinki, PO Box 64 WWF Finland, Lintulahdenkatu 10 Finnish Environment Institute Freshwater Centre, Paavo Havaksen Tie 3 Institute of Biosciences São Paulo State University (UNESP), Avenida 24 A 1515 CAPES: 001 FAPESP: 13/50424-1 FAPESP: 19/04033-7 Academy of Finland: 273557 Academy of Finland: 273560 CNPq: 304314/2014-5 CNPq: 307587/2017-7 CNPq: 465610/2014-5 |
| Databáze: | OpenAIRE |
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