| Registro completo |
| Provedor de dados: |
BJB
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| País: |
Brazil
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| Título: |
Periwinkle (Gastropoda: Littorinidae) habitat selection and its impact upon microalgal populations
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| Autores: |
APOLINÁRIO,M.
COUTINHO,R.
BAETA-NEVES,M. H.
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| Data: |
1999-05-01
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| Ano: |
1999
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| Palavras-chave: |
Brazil
Habitat selection
Intertidal
Littorinidae
Microalgae
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| Resumo: |
The present study examines habitat selection and grazing pressure of the periwinkle Nodilittorina lineolata (Gmelin, 1791) on the rocky shore of Arraial do Cabo, RJ, Brazil (lat. 23°S, long. 43°W). Transfer experiments suggest that periwinkles actively select the mid intertidal, where the cirripede Chthamalus bisinuatus Pilsbry is the dominant sessile invertebrate. We also conducted a caging experiment in the middle intertidal, manipulating grazers and light, to assess the impact of grazing upon microalgal density. Grazing pressure significantly reduced microalgal abundance at the mid-intertidal level, suggesting that food availability plays an important role in the habitat selection of periwinkles on the studied shore.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000200005
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| Editor: |
Instituto Internacional de Ecologia
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| Relação: |
10.1590/S0034-71081999000200005
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Biologia v.59 n.2 1999
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| Direitos: |
info:eu-repo/semantics/openAccess
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