Study ID 515

Assemblage-level responses of phyllostomid bats to tropical forest fragmentation

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Realm: Terrestrial
Climate: Tropical
Biome: Tropical and Subtropical Moist Broadleaf Forests
Central latitude: 9.178193
Central longitude: -79.872578
Duration: 3 years, from 2003 to 2005

1585 records

43 distinct species

Across the time series Artibeus jamaicensis is the most frequently occurring species

Citation(s):

Mendenhall, C.D., Karp, D.S., Meyer, C.F., Hadly, E.A. & Daily, G.C. (2014) Predicting biodiversity change and averting collapse in agricultural landscapes. Nature, 509, 213.Meyer, C.F. & Kalko, E.K. (2008) Assemblage?level responses of phyllostomid bats to tropical forest fragmentation: land?bridge islands as a model system. Journal of Biogeography, 35, 1711-1726.Meyer, C.F. & Kalko, E.K. (2008) Bat assemblages on Neotropical land?bridge islands: nested subsets and null model analyses of species co?occurrence patterns. Diversity and Distributions, 14, 644-654.Meyer, C.F., Fründ, J., Lizano, W.P. & Kalko, E.K. (2008) Ecological correlates of vulnerability to fragmentation in Neotropical bats. Journal of Applied Ecology, 45, 381-391.

Methods

Field work was conducted between October 2003 and October 2005. At each island and mainland site, bats were sampled in a standardized manner with mist nets (6 · 2.5 m, 70/2 denier, 16-mm mesh size, five shelves) set along the perimeter of plots of c. 0.5 ha (typically 100 · 50 m; one plot per site). Each site was sampled for 7–8 complete nights over the 2-year period, with a minimum time interval of 30 days between netting nights. All sites were sampled with equal effort during all moon phases, and we generally avoided netting immediately before and after a full moon in order to minimize potential bias in capture success as a result of lunar-phobic behaviour (e.g. Morrison, 1978). During each survey night, we used six nets erected at ground level and spaced c. 50 m apart. In order also to sample bats flying in higher forest strata, we set up a net wall, typically consisting of four stacked nets, reaching subcanopy (mainland sites) or canopy (islands) level. Canopy height across study sites averaged < 20 m and was often < 15 m on islands. Species were identified, and standard measurements and demographic data were collected following Handley et al. (1991). Nomenclature follows Simmons (2005). Most bats (species > 10 g, excluding juveniles) were marked with individually numbered ball-chain necklaces, or, in the case of larger gleaning animalivores, with passive, subcutaneous transponders (EURO-ID, Weilerswist, Germany). Based on the classification system used by several authors (Stevens & Willig, 2000; Patterson et al., 2003; Giannini & Kalko, 2004, 2005), we assigned bats to one of the following ensembles (Fauth et al., 1996): frugivores, gleaning animalivores, nectarivores, omnivores, and sanguivores. For further detail please see associated papers as cited.