A5012028677- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Coastal wetland ecosystem dynamics
- Coral and Marine Ecosystems Studies
- Marine and fisheries research
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Marine Bivalve and Aquaculture Studies
- Marine animal studies overview
- Coastal and Marine Management
- Coastal and Marine Dynamics
- Cephalopods and Marine Biology
- Ichthyology and Marine Biology
- Methane Hydrates and Related Phenomena
- Peatlands and Wetlands Ecology
- Ocean Acidification Effects and Responses
- Turtle Biology and Conservation
- Marine Sponges and Natural Products
- Geology and Paleoclimatology Research
- Atmospheric and Environmental Gas Dynamics
- Water Quality and Resources Studies
- Climate Change and Environmental Impact
- Oceanographic and Atmospheric Processes
- Soil and Water Nutrient Dynamics
- Aquatic Ecosystems and Phytoplankton Dynamics
Florida International University
2016-2025
Universidad Nacional Autónoma de México
2019
Radboud University Nijmegen
2019
Helmholtz-Zentrum Hereon
2019
Universidad Autónoma del Estado de Morelos
2019
The University of Western Australia
2015-2018
Fairchild Tropical Botanic Garden
2008-2010
NOAA National Marine Fisheries Service Southeast Fisheries Science Center
2007
University of Copenhagen
2004
University of Virginia
1991-2000
Coastal ecosystems and the services they provide are adversely affected by a wide variety of human activities. In particular, seagrass meadows negatively impacts accruing from billion or more people who live within 50 km them. Seagrass important ecosystem services, including an estimated $1.9 trillion per year in form nutrient cycling; order magnitude enhancement coral reef fish productivity; habitat for thousands fish, bird, invertebrate species; major food source endangered dugong,...
Seagrasses, marine flowering plants, have a long evolutionary history but are now challenged with rapid environmental changes as result of coastal human population pressures. Seagrasses provide key ecological services, including organic carbon production and export, nutrient cycling, sediment stabilization, enhanced biodiversity, trophic transfers to adjacent habitats in tropical temperate regions. They also serve “coastal canaries,” global biological sentinels increasing anthropogenic...
Recent attention has focused on the high rates of annual carbon sequestration in vegetated coastal ecosystems—marshes, mangroves, and seagrasses—that may be lost with habitat destruction ('conversion'). Relatively unappreciated, however, is that conversion these ecosystems also impacts very large pools previously-sequestered carbon. Residing mostly sediments, this 'blue carbon' can released to atmosphere when are converted or degraded. Here we provide first global estimates impact evaluate...
Seagrass meadows are highly productive habitats found along many of the world's coastline, providing important services that support overall functioning coastal zone. The organic carbon accumulates in seagrass is derived not only from production but trapping other particles, as canopies facilitate sedimentation and reduce resuspension. Here we provide a comprehensive synthesis available data to obtain better understanding relative contribution possible sources matter accumulate sediments...
The metabolic rates of seagrass communities were synthesized on the basis a data set community metabolism containing 403 individual estimates derived from total 155 different sites. Gross primary production (GPP) (mean ± SE = 224.9 11.1 mmol O 2 m −2 d −1 ) tended to be significantly higher than corresponding respiration (R) 187.6 10.1 ), indicating that meadows tend autotrophic ecosystems, reflected in positive mean net (NCP 27.2 5.8 and P/R ratio above 1 (1.55 0.13). Tropical support...
Limiting climate warming to <2°C requires increased mitigation efforts, including land stewardship, whose potential in the United States is poorly understood. We quantified of natural solutions (NCS)—21 conservation, restoration, and improved management interventions on agricultural lands—to increase carbon storage avoid greenhouse gas emissions States. found a maximum 1.2 (0.9 1.6) Pg CO2e year−1, equivalent 21% current net annual At market prices (USD 10 per Mg CO2e), 299 Tg year−1 could...
Florida Bay is a shallow, seagrass‐dominated embayment on the southern tip of Florida. Variation C, N, and P content leaves Thalassia testudinum was measured two spatial scales: locally (10–100 m) in relation to point source nutrients associated with bird colony eastern regionally (10– 100 km) across all bay. Locally, decreased from high 0.16% (wt/wt) 30 m nutrient low 0.08% 120 source; C N (34.9 2.1%) independent distance source. Due variations content, : P, but not varied locally....
1 A predictive framework of community and ecosystem dynamics that applies across systems has remained elusive, in part because non-consumptive predator effects are often ignored. Further, it is unclear how much individual-level detail models must include. 2 Previous studies short-lived species suggest state-dependent decisions add little to our understanding dynamics. Body condition-dependent made by long-lived herbivores under risk predation, however, might have greater community-level...
Abstract Extreme climatic events can trigger abrupt and often lasting change in ecosystems via the reduction or elimination of foundation (i.e., habitat‐forming) species. However, while frequency/intensity extreme is predicted to increase under climate change, impact these on many species they support remains poorly understood. Here, we use iconic seagrass meadows Shark Bay, Western Australia – a relatively pristine subtropical embayment whose dominant, canopy‐forming seagrass, Amphibolis...
Summary Oxygen and sulphide dynamics were examined, using microelectrode techniques, in meristems rhizomes of the seagrass Thalassia testudinum at three different sites Florida Bay, laboratory, to evaluate potential role internal oxygen variability invasion episodes sudden die‐off. The differed with respect shoot density sediment composition, an active die‐off occurring only one sites. Meristematic content followed similar diel patterns all high during day hyposaturation relative water...
Natural chemical tracers of groundwater discharge ( 222 Rn and CH 4 ) were surveyed to evaluate possible patterns interactions with surface water in Florida Bay. Radon methane concentrations samples collected from wells, solution holes, canals, Bay showed a significant correlation, despite the fact that these two trace gases have independent sources. Groundwater flux was also measured directly via seepage meters several locations. abundance nitrogen isotopes on attached algae seagrass...
Summary The loss of large‐bodied herbivores and/or top predators has been associated with large‐scale changes in ecosystems around the world, but there remain important questions regarding contexts which such are most likely and mechanisms through they occur, particularly marine ecosystems. We used long‐term exclusion cages to examine effects large grazers (sea cows, D ugong dugon ; sea turtles C helonia mydas ) on seagrass community structure, biomass nutrient dynamics. Experiments were...