Abstract/Details

Reproductive success, territory size, and predation pressures of the Florida scrub-jay (<i>Aphelocoma coerulescens</i>) at Savannas Preserve State Park


2005 2005

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Abstract (summary)

The Florida Scrub-jay is found only in the fire-dependent xeric oak communities of Florida. The number of scrub-jays statewide has been in steady decline over the past century due to the habitat loss resulting from urban development and the aging of xeric oak scrub caused by fire suppression policies. This study looks how aging of the scrub has affected scrub-jays at the Savannas Preserve State Park in Port St. Lucie, Florida. The population of scrub-jays at Savannas has been in decline over the past eight years. This study revealed that they are occupying territories that are much smaller than the normal optimal size and are having minimal reproductive success. In addition, the birds are subjected to predation pressures from natural predators present at higher than normal densities and by other predators brought into their habitat by encroaching urban development. The implementation of an aggressive prescribed fire program to restore their habitat is crucial to the long-term survival of this population of Florida Scrub-jays.

Indexing (details)


Subject
Ecology;
Zoology;
Forestry
Classification
0329: Ecology
0472: Zoology
0478: Forestry
Identifier / keyword
Biological sciences
Title
Reproductive success, territory size, and predation pressures of the Florida scrub-jay (<i>Aphelocoma coerulescens</i>) at Savannas Preserve State Park
Author
Cowan, Ernest M.
Number of pages
51
Publication year
2005
Degree date
2005
School code
0119
Source
MAI 43/05M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
0496967363, 9780496967360
Advisor
Mahoney, Sheila A.
University/institution
Florida Atlantic University
University location
United States -- Florida
Degree
M.S.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
1425341
ProQuest document ID
305414498
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/305414498
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