Schopmeyer S.A.,University of Miami |
Lirman D.,University of Miami |
Bartels E.,Center for Tropical Research |
Byrne J.,The Nature Conservancy |
And 7 more authors.
During an unusual cold-water event in January 2010, reefs along the Florida Reef Tract suffered extensive coral mortality, especially in shallow reef habitats in close proximity to shore and with connections to coastal bays. The threatened staghorn coral, Acropora cervicornis, is the focus of propagation and restoration activities in Florida and one of the species that exhibited high susceptibility to low temperatures. Complete mortality of wild staghorn colonies was documented at 42.9% of donor sites surveyed after the cold event. Remarkably, 72.7% of sites with complete A. cervicornis mortality had fragments surviving within in situ coral nurseries. Thus, coral nurseries served as repositories for genetic material that would have otherwise been completely lost from donor sites. The location of the coral nurseries at deeper habitats and distanced from shallow nearshore habitats that experienced extreme temperature conditions buffered the impacts of the cold-water event and preserved essential local genotypes for future Acropora restoration activities. © 2011 Society for Ecological Restoration International. Source
Karubian J.,Tulane University |
Carrasco L.,Center for Tropical Research |
Mena P.,Center for Tropical Research |
Olivo J.,Center for Tropical Research |
And 4 more authors.
Wilson Journal of Ornithology
The Brown Wood Rail (Aramides wolfi) is a globally threatened, poorly known species endemic to the Chocó rain forests of South America. We provide a first report on the species' nesting biology, home range, and habitat use. Nests (n = 16) were open cups ∼2 m above ground and were more common in secondary forest than expected by chance. Median clutch size was four eggs, incubation lasted >19 days, the precocial young departed the nest within 24 hrs of hatching, and 66% of nests successfully produced young. At least two adults participated in parental care and pair bonds appear to be maintained year-round. The home range of an adult radio-tracked for 7 months was 13.5 ha in secondary and selectively-logged forest contiguous to primary forest. This easily overlooked species may be more resilient to moderate levels of habitat degradation than previously suspected, but extensive deforestation throughout its range justifies its current status as 'Vulnerable to Extinction'. © 2011 by the Wilson Ornithological Society. Source