The effects of wetland habitat structure on Florida apple snail density

Autor: Laksiri B. Karunaratne, Robert E. Bennetts, Philip C. Darby
Rok vydání: 2006
Předmět:
Zdroj: Wetlands. 26:1143-1150
ISSN: 1943-6246
0277-5212
DOI: 10.1672/0277-5212(2006)26[1143:teowhs]2.0.co;2
Popis: Wetlands often support a variety of juxtaposed habitat patches (e.g., grass-, shrub- or tree-dominated) differentially suited to support the inhabiting fauna. The proportion of available habitat types has been affected by human activity and consequently has contributed to degrading habitat quality for some species. The Florida apple snail (Pomacea paludosa) has drawn attention as a critical prey item for wetlands wildlife and as an indicator of wetlands restoration success in peninsular Florida, USA. An apparent contradiction has evolved wherein this species appears intolerant of drying events, but these disturbances may be necessary to maintain suitable habitat structure for apple snails. We recently reported that assertions regarding intolerance to dry downs in this species were inaccurate. Here, we compared snail density in habitats with (wet prairie) and without (slough) emergent macrophytes, as well as evaluating the effects of structural attributes within the broad wet prairie habitat type....
Databáze: OpenAIRE