H. Guzman

Publications212
h-index44
Citations8,160
Highly Influential Citations465
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One-Third of Reef-Building Corals Face Elevated Extinction Risk from Climate Change and Local Impacts
TLDR
The Caribbean has the largest proportion of corals in high extinction risk categories, whereas the Coral Triangle has the highest proportion of species in all categories of elevated extinction risk.
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Reef coral reproduction in the eastern Pacific: Costa Rica, Panama, and Galapagos Islands (Ecuador)
TLDR
While frequent gamete maturation has been demonstrated in this study, the relatively low rates of larval recruitment occurring on eastern Pacific coral reefs disturbed by the 1982–83 El Niño suggest that the recovery of important frame-building corals could be greatly prolonged.
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Growth rates of eight species of scleractinian corals in the eastern Pacific (Costa Rica)
Caribbean Corals in Crisis: Record Thermal Stress, Bleaching, and Mortality in 2005
TLDR
Comparison of satellite data against field surveys demonstrated a significant predictive relationship between accumulated heat stress (measured using NOAA Coral Reef Watch's Degree Heating Weeks) and bleaching intensity.
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An assessment of metal contamination in mangrove sediments and leaves from Punta Mala Bay, Pacific Panama.
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Contamination of coral reefs by heavy metals along the Caribbean coast of Central America (Costa Rica and Panama)
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Mapping the distribution of coral reefs and associated sublittoral habitats in Pacific Panama: a comparison of optical satellite sensors and classification methodologies
This research compared the ability of Landsat ETM+, Quickbird and three image classification methods for discriminating amongst coral reefs and associated habitats in Pacific Panama. Landsat ETM+ and…
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Are U.S. Coral Reefs on the Slippery Slope to Slime?
TLDR
The authors of this Policy Forum urge action now to address multiple threats simultaneously, because the harmful effects of stressors like overfishing, pollution, poor land-use practices, and global warming are interdependent.
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Reef coral reproduction in the eastern Pacific: Costa Rica, Panamá, and Galápagos Islands (Ecuador). II. Poritidae
TLDR
The capacity of P. lobata and P. panamensis to reproduce sexually supports the notion that eastern Pacific coral reef recovery may not be dependent on long-distance dispersal from central Pacific areas.
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Direct evidence for reproductive isolation among the three species of the Montastraea annularis complex in Central America (Panamá and Honduras)
TLDR
Findings from Panamá and Honduras provide evidence of reproductive isolation and support the separate species status of these three recently separated species, and suggest that the potential for hybridization may be limited.
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