Everglades Wading Bird Project
Everglades Wading Bird Project
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Validation of the Labeled-Water Method for Estimating Food Consumption in Nestling Herons
Accurate measurements of food consumption by young birds are of great value in a variety of ecological studies, but traditional …
Johanna H. Salatas
,
Peter C. Frederick
,
Kenneth A. Nagy
,
Gary E. Williams
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Factors affecting breeding status of wading birds in the Everglades.
This comprehensive final report summarizes the results of a four-year researchand monitoring effort (1998 - 2001) designed to document …
Peter C. Frederick
,
Becky Hylton
,
Julie Heath
,
Marilyn Spalding
,
Greg Babbitt
,
John David Semones
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Wading birds as bioindicators of mercury contamination in Florida, USA: Annual and geographic variation
Mercury contamination in wetland biota is often dynamic, difficult to predict, and costly to track. In this paper, we present results …
Peter C. Frederick
,
Marilyn G. Spalding
,
Robert Dusek
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Pulsed breeding of long-legged wading birds and the importance of infrequent severe drought conditions in the Florida Everglades
At the scale of ecosystems and regions, numbers of nesting long-legged wading birds are often highly variable from year to year, and …
Peter C. Frederick
,
John C. Ogden
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Nocturnal Flight Behavior of Waterbirds in Close Proximity to a Transmission Powerline in the Florida Everglades
Many birds move at night, and although there is strong potential for collisions with stationary structures, the behavior of birds in …
Jie Deng
,
Peter Frederick
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HISTOLOGIC, NEUROLOGIC, AND IMMUNOLOGIC EFFECTS OF METHYLMERCURY IN CAPTIVE GREAT EGRETS
Captive great egret (Ardea albus) nestlings were maintained as controls or were dosed with methylmercury chloride at low (0.5), and …
Marilyn G. Spalding
,
Peter C. Frederick
,
Heather C. McGill
,
Shannon N. Bouton
,
Lauren J. Richey
,
Isabella M. Schumacher
,
Carina G. M. Blackmore
,
Jay Harrison
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METHYLMERCURY ACCUMULATION IN TISSUES AND ITS EFFECTS ON GROWTH AND APPETITE IN CAPTIVE GREAT EGRETS
To test the hypothesis that fledging wading birds would be more at risk from mercury toxicosis than younger nestlings, captive great …
Marilyn G. Spalding
,
Peter C. Frederick
,
Heather C. McGill
,
Shannon N. Bouton
,
Lee R. McDowell
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Effects of chronic, low concentrations of dietary methylmercury on the behavior of juvenile great egrets
We measured the behavioral effects of methylmercury on 16 great egret chicks (Ardea albus) in a captive dosing experiment. Birds were …
Shannon N. Bouton
,
Peter C. Frederick
,
Marilyn G. Spalding
,
Heather McGill
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Exposure of great egret (Ardea albus) nestlings to mercury through diet in the everglades ecosystem
We estimated exposure of great egret (Ardea albus) nestlings to mercury in food in the Florida Everglades, USA, by collecting …
Peter C. Frederick
,
Marilyn G. Spalding
,
Maria S. Sepälveda
,
Gary E. Williams
,
Leo Nico
,
Robert Robins
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Mercury contamination in free-ranging great egret nestlings (Ardea albus) from Southern Florida, USA
Between March and June of 1994 and 1995, mercury (Hg) concentrations were determined from 393 blood and 164 growing scapular feathers …
María S. Sepúlveda
,
Peter C. Frederick
,
Marilyn G. Spalding
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