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The Nest Environment of the American Crocodile (Crocodylus acutus) [electronic resource]: Report T-671.

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Date Issued:
1982-06
Summary:
In Florida Bay (Everglades National Park), crocodile nests from two different substrates, sand-shell and marl were studied during the nesting season of 1979-80. Changes in temperature, soil water, and gaseous composition were monitored in selected nests throughout incubation. Seasonal and diurnal fluctuations in nest temperatures were given; no differences were found among nest types. Nest soil water values and loss of water in eggs over the incubation period were discussed. A decline in oxygen and a rise of carbon dioxide was found in all nests during incubation, and, along with soil composition, there were wide variations found among both nest types.
Title: The Nest Environment of the American Crocodile (Crocodylus acutus) [electronic resource]: Report T-671.
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Name(s): Lutz, Peter L.
Dunbar-Cooper, Ann.
South Florida Research Center
Rosenstiel School of Marine and Atmospheric Science
PALMM (Project)
Type of Resource: text
Genre: Technical Report
Issuance: monographic
Date Issued: 1982-06
Publisher: United States Department of the Interior, National Park Service, South Florida Research Center, Everglades National Park
Place of Publication: Homestead, Fla.
Physical Form: electronic resource
Extent: 38 pages, illustration; 28 cm.
Language(s): English
Summary: In Florida Bay (Everglades National Park), crocodile nests from two different substrates, sand-shell and marl were studied during the nesting season of 1979-80. Changes in temperature, soil water, and gaseous composition were monitored in selected nests throughout incubation. Seasonal and diurnal fluctuations in nest temperatures were given; no differences were found among nest types. Nest soil water values and loss of water in eggs over the incubation period were discussed. A decline in oxygen and a rise of carbon dioxide was found in all nests during incubation, and, along with soil composition, there were wide variations found among both nest types.
Summary: The authors suggested that the metabolic rate of the nest clutch of C. acutus was regulated by oxygen and carbon dioxide levels in the nest. Important similarities in crocodilian and bird egg development were discussed. It was concluded that no direct evidence was found to establish the internal nest environment as limiting to the C. acutus population in Florida Bay.
Summary: Study Period:1979-80; Study Type:Qualitative, quantitative; Habitat:Mangrove swamp/marl, sand-shell; Number of Stations:9 (7 regular, 2 control); Temporal Frequency:Diurnal/weekly/seasonal; Biological Component:Marine reptile (crocodile); Abiotic Parameters Measured:Soil water temperature, salinity, DO, particle size; Dominant Taxon/Taxa Studied:Crocodylus acutus.
Summary: .
Identifier: 56835529 (oclc), FI02584671 (IID), 995758 (digitool), SER-91: (Southeast Regional Office, National Park Service) (stock number), NRBIB:EVER-6350 (NPS Natural Resources Bibliography Number) (stock number), fiu:1873 (fedora), AAA7326QF
Note(s): Peter L. Lutz and Ann Dunbar-Cooper.
"Division of Biology and Living Resources, Rosenstiel School of Marine and Atmospheric Science."
Bibliography included, pages 25-27.
Electronic reproduction. [Florida] : State University System of Florida, PALMM Project, 2004. (Everglades online collection) Mode of access: World Wide Web. System requirements: Internet connectivity; Web browser software; Adobe Acrobat Reader to view and print PDF files. Electronically reproduced by Florida International University from a technical report held in the Green Library at Florida International University, Miami.
Contract No. CX5280-9-2129
Final report.
Subject(s): Crocodiles -- Nests -- Florida -- Everglades National Park
American crocodile -- Nests -- Florida -- Everglades National Park
Everglades -- 3090202
Persistent Link to This Record: http://purl.flvc.org/fcla/tc/feol/FI02584671.pdf
Persistent Link to This Record: http://purl.flvc.org/fcla/tc/feol/FI02584671.jpg
Use and Reproduction: http://rightsstatements.org/vocab/NoC-US/1.0/
Host Institution: FIU
Has Part:
(OCoLC)08945686
Is Part of Series: Report (South Florida Research Center) ; T-671.
Is Part of Series: Everglades online collection.