Consulta: subjectFacets:"Habitat connectivity"
Registros recuperados: 2
Data/hora: 10/06/2024 12:15:31

Animal Dispersal in Fragmented Habitat: Measuring Habitat Connectivity, Corridor Use, and Dispersal Mortality
Provedor de dados: 7
Autores: Brooker, Lesley; CSIRO Sustainable Ecosystems; lesley.brooker@csiro.au; Brooker, Michael; CSIRO Wildlife and Ecology; M.Brooker@per.dwe.csiro.au; Cale, Peter; CSIRO Wildlife and Ecology; P.Cale@per.dwe.csiro.au.
We used a spatially explicit dispersal simulation to generate movement frequencies and distances for comparison with real dispersal frequencies collected in the field from two habitat-specific, sedentary bird species. The relationship between these two data sets allowed us to (1) test the hypothesis that the study species used corridor routes during dispersal; (2) measure the degree of reliance on corridor continuity; (3) estimate the rate of dispersal mortality with respect to distance traveled, and (4) give examples of how the model can be used to assess habitat connectivity with respect to similarly behaved species. We found that Blue-breasted Fairy-wrens and White-browed Babblers both used corridor routes during dispersal. Blue-breasted Fairy-wrens...
Tipo: Peer-Reviewed Reports
Palavras-chave: Animal dispersal; Blue-breasted Fairy-wren; Dispersal model; Dispersal mortality; Fragmentation; Habitat connectivity; Malurus pulcherrimus; Pomatostomus superciliosus; Spatially explicit dispersal; Vegetation corridors; White-browed Babbler.
Ano: 1999

Small-scale connectivity of coralligenous habitats: insights from a modelling approach within a semi-opened Mediterranean bay
Provedor de dados: 5
Autores: Rossi, Vincent; Lo, Madiop; Legrand, Terence; Ser-giacomi, Enrico; De Jode, Aurélien; Thierry De Ville D’avray, Laure; Pairaud, Ivane; Faure, Vincent; Fraysse, Marion; Pinazo, Christel; Chenuil, Anne.
Habitat connectivity is central to several key evolutionary and ecological processes, having implications for the spatial structuring of marine populations. For benthic species that have no or little mobility as adults, connectivity is evaluated by analyzing the dispersal of propagules across the seascape. We investigate fine-scale connectivity of coralligenous habitats in Marseille Bay (located in the north-western Mediterranean) sea using high-resolution cartography and a particle-tracking model ran over a range of parameters derived from the biological traits of potential target species. We present annual and seasonal means of various connectivity diagnostics measuring the retention and exchange of propagules among coralligenous patches. A synthetic...
Tipo: Text
Palavras-chave: Habitat connectivity; Larval dispersal; Coralligenous assemblages; Benthic organisms; Oceanic circulation; Lagrangian modeling; Population genetics; Community composition.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00680/79225/81737.pdf