You are here
The hawksbill rookery at Antigua, W.I.: nest success, hatchling behavior, and hatchling survival during offshore migration
- Date Issued:
- 2013
- Summary:
- The younger life history stages of marine turtles (eggs, hatchlings) often fail to survive. To compensate, sea turtles nest several times/season and produce large clutches of eggs. The hawksbill produces the largest clutches (150 eggs) and the smallest hatchlings of any marine turtle. My study, done at Jumby Bay in Antigua, West Indies, was designed to determine whether they did so to compensate for loss in the nest, hatchling loss in the water, or both factors. I found that most of the eggs (79 %) survived to become hatchlings that left the nest and entered the sea. However, 88 % of the hatchlings swimming offshore were taken by predators within minutes after they began their migration. These results suggest that at Jumby Bay, large clutch size is favored in hawksbills because of predation pressures on the hatchlings.
Title: | The hawksbill rookery at Antigua, W.I.: nest success, hatchling behavior, and hatchling survival during offshore migration. |
159 views
73 downloads |
---|---|---|
Name(s): |
Reising, Megan, author Salmon, Michael, Thesis advisor Charles E. Schmidt College of Science, Degree grantor Department of Biological Sciences |
|
Type of Resource: | text | |
Genre: | Electronic Thesis Or Dissertation | |
Issuance: | single unit | |
Date Created: | Fall 2013 | |
Date Issued: | 2013 | |
Publisher: | Florida Atlantic University | |
Physical Form: | Online Resource | |
Extent: | 56 p. | |
Language(s): | English | |
Summary: | The younger life history stages of marine turtles (eggs, hatchlings) often fail to survive. To compensate, sea turtles nest several times/season and produce large clutches of eggs. The hawksbill produces the largest clutches (150 eggs) and the smallest hatchlings of any marine turtle. My study, done at Jumby Bay in Antigua, West Indies, was designed to determine whether they did so to compensate for loss in the nest, hatchling loss in the water, or both factors. I found that most of the eggs (79 %) survived to become hatchlings that left the nest and entered the sea. However, 88 % of the hatchlings swimming offshore were taken by predators within minutes after they began their migration. These results suggest that at Jumby Bay, large clutch size is favored in hawksbills because of predation pressures on the hatchlings. | |
Identifier: | FA0004049 (IID) | |
Note(s): |
Includes bibliography. Thesis (M.S.)--Florida Atlantic University, 2013. |
|
Subject(s): |
Animal migration -- Antigua -- Jumbo Bay Animal orientation -- Antigua -- Jumbo Bay Hawksbill turtle -- Research -- Antigua -- Jumbo Bay Predation (Biology) Sea turtles -- Research -- Antigua -- Jumbo Bay Wildlife conservation -- Antigua -- Jumbo Bay |
|
Held by: | Florida Atlantic University Digital Library | |
Sublocation: | Boca Raton, Fla. | |
Persistent Link to This Record: | http://purl.flvc.org/fau/fd/FA0004049 | |
Restrictions on Access: | All rights reserved by the source institution | |
Restrictions on Access: | http://rightsstatements.org/vocab/InC/1.0/ | |
Host Institution: | FAU |