Journal ArticleDOI
Spatial and temporal variability in juvenile coral densities, survivorship and recruitment in La Parguera, southwestern Puerto Rico
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In this article, the authors investigated the relationship between survivorship and reproductive mode (brooding vs. broadcast spawning) of sexual reproduction and found that survivorship was significantly higher in deeper habitats at three of the four fringing reefs and the semi-exposed inshore, highly sedimented reefs, showed higher juvenile survivorship than the mid-shelf and shelf edge reefs.Abstract:
2 in 2005. Juvenile coral composition, relative abundances, survivorship and recruitment varied significantly across depth intervals within reefs and among reefs. Some species with high relative abundances in 2003 showed high survivorship in 2005 ( Siderastrea siderea (28.3% and 65% respectively), Porites astreoides (15.1% and 55.6%), and Diploria strigosa (7.5% and 45.2%)). Other taxa had relative low abundances but high survivorship ( Montastraea cavernosa (4.6% and 66.7%) and Stephanocoenia intersepta (4.6% and 48.3%)). Survivorship was significantly higher in deeper habitats at three of the four fringing reefs. Furthermore, the semi-exposed inshore, highly sedimented reefs, showed higher juvenile survivorship than the mid-shelf and shelf-edge reefs. There was no clear relationship between survivorship and reproductive mode (brooding vs. broadcast spawning) of sexual reproduction. Overall, only 78 new recruits were found in 2005.read more
Citations
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Watershed- and island wide-scale land cover changes in Puerto Rico (1930s-2004) and their potential effects on coral reef ecosystems.
TL;DR: Land cover change was assessed for a 69-km watershed in Puerto Rico between 1936 and 2004 by aerial photograph interpretation, inferring that coral reef management may only be effective when numerous land- and marine-based stressors are simultaneously mitigated.
Journal ArticleDOI
Community-Based Coral Reef Rehabilitation in a Changing Climate: Lessons Learned from Hurricanes, Extreme Rainfall, and Changing Land Use Impacts
Edwin A. Hernández-Delgado,Alex E. Mercado-Molina,Pedro J. Alejandro-Camis,Frances Candelas-Sánchez,Jaime S. Fonseca-Miranda,Carmen M. González-Ramos,Roger Guzmán-Rodríguez,Pascal Mège,Alfredo Montañez-Acuña,Iván Olivo Maldonado,Abimarie Otaño-Cruz,Samuel E. Suleimán-Ramos +11 more
TL;DR: In this article, a community-based, low-tech coral farming approach in Culebra Island, Puerto Rico, aimed at adapting to climate change-related impacts through a two-year project to propagate A. cervicornis under two contrasting fishing management conditions, in coastal areas experimenting significant land use changes.
Journal ArticleDOI
The link between immunity and life history traits in scleractinian corals.
TL;DR: Results indicate that there seems to be a relationship between constitutive immunity and sexual pattern with gonochoric species showing significantly higher levels of immunity than hermaphrodites, therefore, gonochric species maybe better suited to resist infections and overcome stressors.
Journal ArticleDOI
Reproductive natural history and successful juvenile propagation of the threatened Caribbean Pillar Coral Dendrogyra cylindrus
TL;DR: It is argued that a precautionary approach to conservation is warranted, given this species’ peculiar life history traits and still-unresolved population structure, and the natural history and husbandry contributions presented here should facilitate accelerated research and conservation of this threatened coral.
Journal ArticleDOI
Ecological assessments of the coral reef communities in the Eastern Caribbean and the effects of herbivory in influencing coral juvenile density and algal cover
TL;DR: This is the first comprehensive study that compares the state of Orbicella reefs in the Eastern Caribbean, providing valuable information that will be useful in creating realistic targets for future management and conservation.
References
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Journal ArticleDOI
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TL;DR: In this article, a non-parametric method for multivariate analysis of variance, based on sums of squared distances, is proposed. But it is not suitable for most ecological multivariate data sets.
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Journal ArticleDOI
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TL;DR: As the International Year of the Reef 2008 begins, scaled-up management intervention and decisive action on global emissions are required if the loss of coral-dominated ecosystems is to be avoided.
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Climate Change, Human Impacts, and the Resilience of Coral Reefs
Terry P. Hughes,Andrew H. Baird,David R. Bellwood,M. Card,Sean R. Connolly,Carl Folke,Richard K. Grosberg,Ove Hoegh-Guldberg,Jeremy B. C. Jackson,Jeremy B. C. Jackson,Joan A. Kleypas,Janice M. Lough,Paul Marshall,Magnus Nyström,Stephen R. Palumbi,John M. Pandolfi,Brian R. Rosen,Jonathan Roughgarden +17 more
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Journal ArticleDOI
Confronting the coral reef crisis
TL;DR: The ecological roles of critical functional groups (for both corals and reef fishes) that are fundamental to understanding resilience and avoiding phase shifts from coral dominance to less desirable, degraded ecosystems are reviewed.