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Explore WARC's science publications.

Filter Total Items: 3532

Nitrogen vs. phosphorus limitation across an ecotonal gradient in a mangrove forest Nitrogen vs. phosphorus limitation across an ecotonal gradient in a mangrove forest

Mangrove forests are characterized by distinctive tree-height gradients that reflect complex spatial, within-stand differences in environmental factors, including nutrient dynamics, salinity, and tidal inundation, across narrow gradients. To determine patterns of nutrient limitation and the effects of nutrient availability on plant growth and within-stand nutrient dynamics, we used a...
Authors
Ilka C. Feller, K.L. McKee, D.F. Whigham, J.P. O’Neill

A genetic survey of Salvinia minima in the southern United States A genetic survey of Salvinia minima in the southern United States

No abstract available.
Authors
Paul T. Madeira, Colette C. Jacono, Phil Tipping, Thai K. Van, Ted D. Center

Factors limiting the intertidal distribution of the mangrove species Xylocarpus granatum Factors limiting the intertidal distribution of the mangrove species Xylocarpus granatum

The tree species Xylocarpus granatum is commonly described as occurring in the upper intertidal zone of mangrove forests, but mature trees are occasionally found at lower elevations. In the Utwe River basin, on the Pacific island of Kosrae, we investigated the relative importance of several biotic and abiotic factors that may control the intertidal distribution of X. granatum. Factors we...
Authors
J. A. Allen, K. W. Krauss, R.D. Hauff

Measurement of fecal glucocorticoids in parrotfishes to assess stress Measurement of fecal glucocorticoids in parrotfishes to assess stress

Coral reefs are in decline worldwide from a combination of natural and human forces. The environmental compromises faced by coral reef habitats and their associated fishes are potentially stressful, and in this study we examined the potential for assessing stress levels in coral reef fish. We determined the feasibility of using fecal casts from parrotfishes for remote assessment of...
Authors
J.W. Turner, R. Nemeth, C. Rogers

Evaluating the post-release success of rehabilitated manatees in Florida, 1973-2002 Evaluating the post-release success of rehabilitated manatees in Florida, 1973-2002

Abstract not supplied at this time
Authors
R. Bonde, L. Keith, L. Ward, J. Reid, T. Pitchford, C. Deutsch, M. Ross, J. Valade, N. Adimey

Geographic distribution. Eleutherodactylus planirostris Geographic distribution. Eleutherodactylus planirostris

Abstract not supplied at this time
Authors
Steve A. Johnson, Jennifer S. Staiger, William J. Barichivich

Seasonal movements, migratory behavior, and site fidelity of West Indian manatees along the Atlantic coast of the United States Seasonal movements, migratory behavior, and site fidelity of West Indian manatees along the Atlantic coast of the United States

The West Indian manatee (Trichechus manatus) is endangered by human activities throughout its range, including the U.S. Atlantic coast where habitat degradation from coastal development and manatee deaths from watercraft collisions have been particularly severe. We radio-tagged and tracked 78 manatees along the east coast of Florida and Georgia over a 12-year period (1986-1998). Our...
Authors
C. J. Deutsch, J.P. Reid, R. K. Bonde, Dean E. Easton, H. I. Kochman, T. J. O'Shea

Mathematical modeling relevant to closed artificial ecosystems Mathematical modeling relevant to closed artificial ecosystems

The mathematical modeling of ecosystems has contributed much to the understanding of the dynamics of such systems. Ecosystems can include not only the natural variety, but also artificial systems designed and controlled by humans. These can range from agricultural systems and activated sludge plants, down to mesocosms, microcosms, and aquaria, which may have practical or research...
Authors
D.L. DeAngelis

Conservation Conservation

Abstract not supplied at this time
Authors
C.K. Dodd
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