Nesting Patterns of Loggerhead Sea Turtles (Caretta caretta) on the Georgia Coast in Relation to Beach Vegetation. Pack, R. Ph.D. Thesis, University of Georgia, Athens, Georgia, 2017. abstract bibtex Due to global climate change, sea level rise is an increasing global concern and is predicted to have serious consequences on coastal communities. More storm surges corresponded with sea level rise has the ability to cause increased erosion, flooding, and increased frequencies of extreme high tide events. An increase in sea level is reducing the amount of beach viable for organisms and one species this can affect in particular are sea turtles. Other than wide, sloping beaches researchers are unsure why female sea turtles nest in certain locations at their natal sites. One parameter lacking research is the affect of density of coastal dune vegetation on nest site selection and nest fates. Our objectives in this study were to determine what effects crawl distance, washover events, and fates of loggerhead sea turtle (Caretta caretta) nests. Specifically, we focused on determining if there were any correlations to our objectives in relation to vegetation density. In summer 2016, we sampled approximately 20% of the total in situ nests on four barrier islands on the Georgia coast (Ossabaw, Sapelo, Little Saint Simons, and Jekyll). The average density of vegetation loggerheads were utilizing was 11.56%. We determined that an increase in beach width and vegetation density increased the distance crawled by female loggerheads and the number of washovers events increased when the crawl distances were shorter and vegetation densities were lower. Higher vegetation densities decreased the number of days the nest incubated, but when vegetation density had an interaction with washover events, the number of incubation days increased. For the fates of the nests, both hatch success and emergence success decreased when there were more washover events. Managers should consider how sea level rise would affect nesting behavior and fates of the nests, especially when humans are trying to counteract sea level rise by nourishment and seawalls.
@phdthesis{pack_nesting_2017,
address = {Athens, Georgia},
type = {Senior {Thesis}},
title = {Nesting {Patterns} of {Loggerhead} {Sea} {Turtles} ({Caretta} caretta) on the {Georgia} {Coast} in {Relation} to {Beach} {Vegetation}},
abstract = {Due to global climate change, sea level rise is an increasing global concern and is predicted to have serious consequences on coastal communities. More storm surges corresponded with sea level rise has the ability to cause increased erosion, flooding, and increased frequencies of extreme high tide events. An increase in sea level is reducing the amount of beach viable for organisms and one species this can affect in particular are sea turtles. Other than wide, sloping beaches researchers are unsure why female sea turtles nest in certain locations at their natal sites. One parameter lacking research is the affect of density of coastal dune vegetation on nest site selection and nest fates. Our objectives in this study were to determine what effects crawl distance, washover events, and fates of loggerhead sea turtle (Caretta caretta) nests. Specifically, we focused on determining if there were any correlations to our objectives in relation to vegetation density. In summer 2016, we sampled approximately 20\% of the total in situ nests on four barrier islands on the Georgia coast (Ossabaw, Sapelo, Little Saint Simons, and Jekyll). The average density of vegetation loggerheads were utilizing was 11.56\%. We determined that an increase in beach width and vegetation density increased the distance crawled by female loggerheads and the number of washovers events increased when the crawl distances were shorter and vegetation densities were lower. Higher vegetation densities decreased the number of days the nest incubated, but when vegetation density had an interaction with washover events, the number of incubation days increased. For the fates of the nests, both hatch success and emergence success decreased when there were more washover events. Managers should consider how sea level rise would affect nesting behavior and fates of the nests, especially when humans are trying to counteract sea level rise by nourishment and seawalls.},
language = {en},
school = {University of Georgia},
author = {Pack, Rachel},
year = {2017},
}
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One parameter lacking research is the affect of density of coastal dune vegetation on nest site selection and nest fates. Our objectives in this study were to determine what effects crawl distance, washover events, and fates of loggerhead sea turtle (Caretta caretta) nests. Specifically, we focused on determining if there were any correlations to our objectives in relation to vegetation density. In summer 2016, we sampled approximately 20% of the total in situ nests on four barrier islands on the Georgia coast (Ossabaw, Sapelo, Little Saint Simons, and Jekyll). The average density of vegetation loggerheads were utilizing was 11.56%. We determined that an increase in beach width and vegetation density increased the distance crawled by female loggerheads and the number of washovers events increased when the crawl distances were shorter and vegetation densities were lower. Higher vegetation densities decreased the number of days the nest incubated, but when vegetation density had an interaction with washover events, the number of incubation days increased. For the fates of the nests, both hatch success and emergence success decreased when there were more washover events. Managers should consider how sea level rise would affect nesting behavior and fates of the nests, especially when humans are trying to counteract sea level rise by nourishment and seawalls.","language":"en","school":"University of Georgia","author":[{"propositions":[],"lastnames":["Pack"],"firstnames":["Rachel"],"suffixes":[]}],"year":"2017","bibtex":"@phdthesis{pack_nesting_2017,\n\taddress = {Athens, Georgia},\n\ttype = {Senior {Thesis}},\n\ttitle = {Nesting {Patterns} of {Loggerhead} {Sea} {Turtles} ({Caretta} caretta) on the {Georgia} {Coast} in {Relation} to {Beach} {Vegetation}},\n\tabstract = {Due to global climate change, sea level rise is an increasing global concern and is predicted to have serious consequences on coastal communities. More storm surges corresponded with sea level rise has the ability to cause increased erosion, flooding, and increased frequencies of extreme high tide events. An increase in sea level is reducing the amount of beach viable for organisms and one species this can affect in particular are sea turtles. Other than wide, sloping beaches researchers are unsure why female sea turtles nest in certain locations at their natal sites. One parameter lacking research is the affect of density of coastal dune vegetation on nest site selection and nest fates. Our objectives in this study were to determine what effects crawl distance, washover events, and fates of loggerhead sea turtle (Caretta caretta) nests. Specifically, we focused on determining if there were any correlations to our objectives in relation to vegetation density. In summer 2016, we sampled approximately 20\\% of the total in situ nests on four barrier islands on the Georgia coast (Ossabaw, Sapelo, Little Saint Simons, and Jekyll). The average density of vegetation loggerheads were utilizing was 11.56\\%. We determined that an increase in beach width and vegetation density increased the distance crawled by female loggerheads and the number of washovers events increased when the crawl distances were shorter and vegetation densities were lower. Higher vegetation densities decreased the number of days the nest incubated, but when vegetation density had an interaction with washover events, the number of incubation days increased. For the fates of the nests, both hatch success and emergence success decreased when there were more washover events. 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