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Filter Total Items: 3377

Lead poisoning in the globally threatened marbled teal and white‐headed duck in Spain

Marbled teal (Marmaronetta angustirostris) and white‐headed duck (Oxyura leucocephala) are the two European ducks threatened with global extinction. We investigated lead (Pb) poisoning in stifftails (Oxyura spp., n = 83) and marbled teal (n = 80) shot or found dead or moribund in Spanish wetlands via gizzard examination and liver, bone, and blood Pb analysis. Ingested Pb shot was present in 32% of
Authors
Rafael Mateo, A.J. Green, Clinton W. Jeske, Vicente Urios, Cati Gerique

The Cajun Prairie Restoration Project

No abstract available.
Authors
Malcolm Vidrine, Charles Allen, Bruno Borsari, Larry K. Allain, Stephen R. Johnson

Pattern and process of land loss in the Mississippi Delta: A spatial and temporal analysis of wetland habitat change

An earlier investigation (Turner 1997) concluded that most of the coastal wetland loss in Louisiana was caused by the effects of canal dredging, that loss was near zero in the absence of canals, and that land loss had decreased to near zero by the late 1990s. This analysis was based on a 15-min quadrangle (approximately 68,000 ha) scale that is too large to isolate processes responsible for small-
Authors
John W. Day, Louis D. Britsch, Suzanne Hawes, Gary P. Shaffer, Denise J. Reed, Donald R. Cahoon

Fire in eastern ecosystems

Prior to Euro-American settlement, fire was a ubiquitous force across most of the Eastern United States. Fire regimes spanned a time-scale from chronic to centuries. Fire severity varied from benign to extreme (fig. 1-2). Today, fire is still a major force on the landscape. In some ecosystems fire stabilizes succession at a particular sere, while in others, succession is set back to pioneer specie
Authors
Dale D. Wade, Brent L. Brock, Patrick H. Brose, James B. Grace, G. A. Hoch, William A. Patterson III

Disruption and restoration of en route habitat, a case study: The Chenier Plain

Cheniers (relict beach ridges) and other habitats adjacent to ecological barriers may be critical linkages in the migratory pathways of long-distance migratory birds. It is important that these wooded habitats provide enough food and cover at the right time to support these birds’ requirements. To date, little attention has been given to the conservation of coastal woodlands, habitats in which en 
Authors
Wylie C. Barrow, Chao-Chieh Chen, Robert B. Hamilton, Keith Ouchley, Terry J. Spengler

Louisiana gap analysis project

No abstract available.
Authors
James Johnston, Steven Hartley

The hidden costs of coastal hazards: Implications for risk assessment and mitigation

Two-year study undertaken by the  H. John Heinz III Center for Science, Economics and the Environment to  develop new strategies to identify and reduce the costs of weather-related hazards associated with rapidly increasing coastal development activities.
Authors
H. Kunreuther, R. Platt, S. Baruch, R. L. Bernknopf, M. Buckley, V. Burkett, D. Conrad, T. Davidson, K. Deutsch, D. Geis, M. Jannereth, A. Knap, H. Lane, G. Ljung, M. McCauley, D. Mileti, T. Miller, B. Morrow, J. Meyers, R. Pielke, A. Pratt, J. Tripp

Nest-site selection by the loggerhead sea turtle in Florida's Ten Thousand Islands

No abstract available.
Authors
Ahjond S. Garmestani, H. Franklin Percival, Kenneth M. Portier, Kenneth G. Rice

Summer nesting of turtles in alligator nests in Florida

No abstract available.
Authors
Kevin M. Enge, H. Franklin Percival, Kenneth G. Rice, Michael L. Jennings, Gregory R. Masson, Allan R. Woodward

Conveying multiple, complex themes and classes for natural resource assessments

Two methods were used to convey the spatial association between a classified forested landscape, the distribution of a hurricane impact, and the subsequent recovery of the habitat from the storm. The first method used a constant hue matrix with varying intensity to visually represent combinations of impact and recovery magnitudes. The second combined two colors of constant hue to represent the imp
Authors
Elijah Ramsey III, Marshall L. Strong