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Relação entre os atributos funcionais e características do habitat em comunidades de girinos

Authors: Queiroz, Cássia de Souza;

Relação entre os atributos funcionais e características do habitat em comunidades de girinos

Abstract

Environmental characteristics and evolutionary history of lineages are factors known to influence species coexistence in a community. The functional traits of species that determine how the species uses resources, along evolution, can differ or remain similar to their ancestors. Abiotic characteristics promote selection of traits that allow survival under a set of environmental conditions. Overcoming the taxonomic level and analyze the communities based on the functions they play in ecological systems can be the key to connect patterns and processes in community ecology. Our goal was to understand way the functional attributes of the larval stage of frogs are related to habitat characteristics, considering the habitat acts as a filter for the occurrence of tadpoles, and the habitat homogenization can limit the composition to those species with certain attributes. We expect then that the gradients of depth and complexity of the vegetation within the water bodies act as filters in the local distribution of morphological and functional traits of the tadpoles. Compiled database of studies with communities of tadpoles developed in areas of semideciduous forest in the State of São Paulo and determine the occurrence of tadpoles of 23 frog species in 41 habitats. We tested the existence of a relationship between eight functional traits of tadpoles with depth and vegetation types within the water bodies in which they occurred. Our results indicate that the association of morphological traits of tadpoles with water bodies was not random, showing that gradients of depth and number of vegetation types influence the distribution of tadpoles in habitats. The depth and number of types of vegetation in water bodies appear to impose a continuum in species distribution, being an extreme represented by species with traits that have better performance in deeper bodies of water with little vegetation types, as nektonic and filter-feeding tadpoles and at the ...

As características ambientais e a história evolutiva das linhagens são fatores conhecidos por influenciar a coexistência das espécies em uma comunidade. Os atributos funcionais das espécies que determinam a forma como as espécies utilizam os recursos, ao longo da evolução, podem se diferenciar ou se manter semelhantes aos de seus ancestrais. As características abióticas promovem a seleção de espécies que possuam atributos que possibilitem sua sobrevivência sob um conjunto específico de condições ambientais. Ultrapassar o nível taxonômico e analisar as comunidades com base nas funções que elas desempenham nos sistemas ecológicos pode ser a chave para ligar padrões e processos em ecologia de comunidades. Nosso objetivo foi compreender como os atributos funcionais da fase larval dos anuros estão relacionados com as características dos habitats, considerando que o habitat atua como um filtro para a ocorrência de girinos, e a homogeneização dos habitats pode limitar a composição àquelas espécies com determinados atributos. Esperamos então, que os gradientes de profundidade e complexidade da vegetação no interior dos corpos d'água atuem como filtros locais na distribuição dos atributos morfológicos e funcionais dos girinos. Compilamos dados de trabalhos com comunidades de girinos desenvolvidos em áreas de Floresta Estacional Semidecidual no Estado de São Paulo e determinamos a ocorrência de girinos de 23 espécies de anuros em 41 habitats. Testamos a existência de uma relação entre oito atributos funcionais dos girinos com a profundidade e tipos de vegetação no interior dos corpos d’água em que eles ocorriam. Nossos resultados indicam que a associação dos atributos morfológicos dos girinos com os corpos d’água foi não aleatória, evidenciando que os gradientes de profundidade e número de tipos de vegetação influenciam a distribuição dos girinos nos habitats. A profundidade e o número de ...

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Pós-graduação em Biologia Animal - IBILCE

Processo FAPESP: 2010/52321-7

Country
Brazil
Keywords

Animal ecology, Ecologia animal, Anuro, Atributos funcionais, Ecossistemas, Girino - Mata Atlântica, Nicho (Ecologia)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green