Download or read book Potential Biasing of Loggerhead Sea Turtle Caretta Caretta Hatchling Sex Ratios on St Catherine s Island GA written by Catherine D. McCurdy and published by . This book was released on 2009 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Twenty eighth Annual Symposium on Sea Turtle Biology and Conservation written by and published by . This book was released on 2010 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating Past and Present Sex Ratios of Loggerhead Sea Turtle Caretta Caretta Hatchlings on Edisto Island South Carolina written by Cassandra Marshburn Bell and published by . This book was released on 2003 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Incubation Temperature Effects on Hatchling Performance in the Loggerhead Sea Turtle Caretta Caretta written by Leah Fisher and published by . This book was released on 2012 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Incubation temperature has significant developmental effects on oviparous animals, including determining sex for several species. For the Northwest Atlantic loggerhead sea turtle (Caretta caretta), apparent population-wide female-biased hatchling sex ratios contrast with observations of juvenile populations, where sex ratios have remained constant at about 2 to 1 female-biased over the past 30 years. It has been suggested that some unknown factor is affecting loggerhead survival resulting in an unexplained differential loss of ~60% of female hatchlings per year. One theory to explain this hatchling mortality is tested in this project, that incubation temperature affects traits that influence survival. Furthermore, there may be differential survival between male and female hatchlings. I conducted laboratory experiments to test for an effect of incubation temperature on performance of loggerhead hatchlings. I tested 68 hatchlings produced from eggs incubated at 8 different constant temperatures ranging from ~27°C to ~32.5°C. Following their emergence from the eggs, I tested righting response, crawling speed, and conducted a 24-hour long hatchling swim test. Data indicate an effect of incubation temperature on survivorship, righting response time, crawling speed, change in crawl speed, and overall swim activity, with hatchlings incubated at 27°C showing decreased locomotor abilities. No hatchlings survived when incubated at 32°C and above. Differences in survivorship of hatchlings incubated at high temperatures are important in light of projected higher sand temperatures due to climate change, and could indicate increased mortality from incubation temperature effects.

Download or read book Field Geology Education written by Steven J. Whitmeyer and published by Geological Society of America. This book was released on 2009-01-01 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Field instruction has traditionally been at the core of the geoscience curriculum. The field experience has been integral to the professional development of future geoscientists, and is particularly important as it applies to student understanding of spatial, temporal, and complex relations in the Earth system. As important as field experiences have been to geosciences education and the training of geoscientists, the current situation calls for discipline-wide reflection of the role of field experiences in the geoscience curriculum in light of practical and logistical challenges, evolution in employment opportunities for geoscientists, and changing emphases in the geoscience curriculum. This volume seeks to broaden participation in field instruction by showcasing diverse approaches to teaching in the field across the many geo-disciplines encompassed by GSA."--books.google.

Download or read book Determination of Sex Ratios and Their Relationship to Nest Temperature of Loggerhead Sea Turtle Caretta Caretta L Hatchlings Produced Along the Southeastern Atlantic Coast of the United States written by Kimberly Blair and published by . This book was released on 2005 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Temperature dependent Sex Determination in Caretta Caretta on Two Georgia Barrier Islands written by Anne Marie LeBlanc and published by . This book was released on 2004 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Temperature data revealed seasonal patterns of sex ratios that should be produced on these two islands. Males should be predominantly produced early in the nesting season, a female-biased sex ratio should be produced during the mid-season, and a mixed sex ration should be produced late in the season. INDEX WORDS: Caretta caretta, loggerhead, sea turtle, temperature-dependent sex determination, nest relocation, sex ratios.

Download or read book Nest Success and Hatchling Sex Ratio of Loggerhead Sea Turtles Caretta Caretta at Mainland Rookeries in Eastern Australia written by Stephanie Lemm and published by . This book was released on 1996 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synopsis of the Biological Data on the Loggerhead Sea Turtle written by C. Kenneth Dodd and published by . This book was released on 1988 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reproductive Parameters of Nesting Caretta Caretta on Georgia s Barrier Islands written by K. Kristina Drake and published by . This book was released on 2001 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Timing of Sexual Differentiation in the Loggerhead Sea Turtle Caretta Caretta and Predicting Sex Ratios in Natural Nests of Loggerhead Sea Turtles Caretta Caretta from Nest Temperatures written by Joseph F. Gouveia and published by . This book was released on 1988 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life History and Environmental Requirements of Loggerhead Turtles written by David Arthur Nelson and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life History and Environmental Requirements of Loggerhead Turtles written by David A. Nelson and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Assessment of the Loggerhead Turtle Population in the Western Northern Atlantic Ocean written by Southeast Fisheries Science Center (U.S.). Turtle Expert Working Group and published by . This book was released on 2009 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Long term Dietary Analysis of Loggerhead Sea Turtles Caretta Caretta Based on Strandings from Cumberland Island Georgia written by Dale A. Youngkin and published by . This book was released on 2001 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment Update for the Kemp s Ridley and Loggerhead Sea Turtle Populations in the Western North Atlantic written by and published by . This book was released on 2000 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Loggerhead Turtle Caretta Caretta Nesting Habitat on Low relief Mangrove Islands in Southwest Florida and Consequences to Hatchling Sex Ratios written by Allen M. Foley and published by . This book was released on 2000 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: