Data from: Disassembly of a tadpole community by a multi-host fungal pathogen with limited evidence of recovery
DiRenzo, Graziella V., University of Maryland, College Park
Che-Castaldo, Christian, University of Maryland, College Park
Rugenski, Amanda, Arizona State University
Brenes, Roberto, Carroll University
Whiles, Matt R., Southern Illinois University Carbondale
Pringle, Catherine M., University of Georgia
Kilham, Susan S., Drexel University
Lips, Karen R., University of Maryland, College Park
Published Aug 31, 2016 on Dryad.
Cite this dataset
DiRenzo, Graziella V. et al. (2016). Data from: Disassembly of a tadpole community by a multi-host fungal pathogen with limited evidence of recovery [Dataset]. Dryad. https://doi.org/10.5061/dryad.q586c
Emerging infectious diseases can cause host community disassembly, but the mechanisms driving the order of species declines and extirpations following a disease outbreak are unclear. We documented the community disassembly of a Neotropical tadpole community during a chytridiomycosis outbreak, triggered by the generalist fungal pathogen, Batrachochytrium dendrobatidis (Bd). Within the first 11 months of Bd arrival, tadpole density and occupancy rapidly declined. Rarity, in terms of tadpole occupancy and adult relative abundance, did not predict the odds of tadpole species occupancy declines. But species losses were taxonomically selective, with glassfrogs (Family: Centrolenidae) disappearing the fastest and tree frogs (Family: Hylidae) and dart-poison frogs (Family: Dendrobatidae) remaining the longest. We detected biotic homogenization of tadpole communities, with post-decline communities resembling one another more strongly than pre-decline communities. The entire tadpole community was extirpated within 22 months following Bd arrival, and we found limited signs of recovery within 10 years post-outbreak. Because of imperfect species detection inherent to sampling species rich tropical communities and the difficulty of devising a single study design protocol to sample physically complex tropical habitats, we used simulations to provide recommendations for future surveys to adequately sample diverse Neotropical communities. Our unique dataset on tadpole community composition before and after Bd arrival is a valuable baseline for assessing amphibian recovery. Our results are of direct relevance to conservation managers and community ecologists interested in understanding the timing, magnitude, and consequences of disease outbreaks as emerging infectious diseases spread globally.
Tadpole detection/nondetection data for 8 species in 3 microhabitats during the wet and dry season, encompassing a period before and after chytrid arrival.
National Science Foundation, Award: National Science Foundation (DEB 0130273, 0213851, 0234149, 0234386, 0717741, 0001615) and the Bay and Paul Foundation