Tools
Tools
Canale, Gustavo R., Peres, Carlos A. 
ORCID: https://orcid.org/0000-0002-1588-8765, Guidorizzi, Carlos E., Gatto, Cassiano A. Ferreira and Kierulff, Maria Cecília M.
(2012)
Pervasive defaunation of forest remnants in a tropical biodiversity hotspot.
PLoS One, 7 (8).
ISSN 1932-6203
Abstract
Tropical deforestation and forest fragmentation are among the most important biodiversity conservation issues worldwide, yet local extinctions of millions of animal and plant populations stranded in unprotected forest remnants remain poorly explained. Here, we report unprecedented rates of local extinctions of medium to large-bodied mammals in one of the world's most important tropical biodiversity hotspots. We scrutinized 8,846 person-years of local knowledge to derive patch occupancy data for 18 mammal species within 196 forest patches across a 252,669-km2 study region of the Brazilian Atlantic Forest. We uncovered a staggering rate of local extinctions in the mammal fauna, with only 767 from a possible 3,528 populations still persisting. On average, forest patches retained 3.9 out of 18 potential species occupancies, and geographic ranges had contracted to 0-14.4% of their former distributions, including five large-bodied species that had been extirpated at a regional scale. Forest fragments were highly accessible to hunters and exposed to edge effects and fires, thereby severely diminishing the predictive power of species-area relationships, with the power model explaining only ~9% of the variation in species richness per patch. Hence, conventional species-area curves provided over-optimistic estimates of species persistence in that most forest fragments had lost species at a much faster rate than predicted by habitat loss alone.
| Item Type: | Article |
|---|---|
| Additional Information: | © Canale et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| Faculty \ School: | Faculty of Science > School of Environmental Sciences University of East Anglia Research Groups/Centres > Theme - ClimateUEA |
| UEA Research Groups: | Faculty of Science > Research Centres > Centre for Ecology, Evolution and Conservation Faculty of Science > Research Groups > Environmental Biology Faculty of Science > Research Groups > Resources, Sustainability and Governance (former - to 2018) |
| Related URLs: | |
| Depositing User: | Pure Connector |
| Date Deposited: | 01 Dec 2015 16:01 |
| Last Modified: | 20 Mar 2023 14:39 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/55611 |
| DOI: | 10.1371/journal.pone.0041671 |
Actions (login required)
 |
View Item |