Everglades Wading Bird Project
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Longevity and Size of Wood Stork (Mycteria americana) Colonies in Florida as Guides for an Effective Monitoring Strategy in the Southeastern United States
Wood Storks (Mycteria americana) breed in colonies widely dispersed across approximately 3,350 km2 within the United States, and …
Peter C. Frederick
,
Kenneth D. Meyer
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Bias in aerial estimates of the number of nests in White Ibis and Great Egret colonies
Estimating detection error, as well as the magnitude of other potential survey biases, is essential when sampling efforts play a role …
Kathryn A. Williams
,
Peter C. Frederick
,
Paul S. Kubilis
,
John C. Simon
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Effects of methylmercury and spatial complexity on foraging behavior and foraging efficiency in juvenile white ibises (Eudocimus albus)
Methylmercury is a globally distributed neurotoxin, endocrine disruptor, and teratogen, the effects of which on wildlife at …
Evan M. Adams
,
Peter C. Frederick
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Estimating nests not present at the time of breeding surveys: an important consideration in assessing nesting populations
Counts of nest starts are often used as indicators of the size of avian nesting populations, or of avian productivity. However, the …
Peter C. Frederick
,
Julie A. Heath
,
Robert Bennetts
,
Heinz Hafner
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White Ibis integument color during the breeding season
Many birds undergo bare part color changes during the breeding season. Most investigators have focused on color as a signal of …
Julie A. Heath
,
Peter C. Frederick
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Relationships Among Mercury Concentrations, Hormones, and Nesting Effort of White Ibises (Eudocimus Albus) in the Florida Everglades
Mercury, a common wetland pollutant, can affect wildlife populations through acute toxicity or through physiological effects that …
Julie A. Heath
,
Peter C. Frederick
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A historical record of mercury contamination in southern florida (USA) as inferred from avian feather tissue: Contribution R-09888 of the Journal Series, Florida Agricultural Experiment Station
During the late 1980s, the upper trophic-level biota of the Everglades (FL, USA) was recognized as being highly contaminated with …
Peter C. Frederick
,
Becky Hylton
,
Julie A. Heath
,
Marilyn G. Spalding
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Reproductive physiology of free-living White Ibises (Eudocimus albus) in the Florida Everglades
We measured plasma concentrations of testosterone, estradiol, progesterone, and corticosterone; and recorded changes in gonad size, …
Julie A. Heath
,
Peter C. Frederick
,
Thea M. Edwards
,
Louis J. Guillette
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Accuracy and Variation in Estimates of Large Numbers of Birds by Individual Observers Using an Aerial Survey Simulator (Exactitud y variación en los estimados de grandes números de aves, por observadores individuales, utilizando simulaciones de censos aéreos)
The accuracy of aerial estimates of avian aggregation sizes is variable across studies, and the relative importance of techniques and …
Peter C. Frederick
,
Becky Hylton
,
Julie A. Heath
,
Martin Ruane
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Trapping White Ibises with Rocket Nets and Mist Nets in the Florida Everglades (Captura de cigueñas (Eudocimus albus) con redes de cohetes y redes de niebla en la Florida)
We lured White Ibises (Eudocimus albus) to trap sites with decoy plastic flamingos and captured them with a rocket net or mist nets. …
Julie A. Heath
,
Peter C. Frederick
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