Download or read book Effects of Beach Nourishment on the Nesting Environment of Loggerhead Sea Turtles Caretta Caretta written by Doug Piatkowski and published by . This book was released on 2002 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluating the Effects of Beach Nourishment on Loggerhead Sea Turtle Caretta Caretta Nesting In Pinellas County Florida written by Corey R. Leonard Ozan and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: However, when the rates were analyzed by nesting season, the average hatching and emergence success rates were always lower on nourished beaches than on natural beaches. A hotspot analysis on nests and false crawls revealed that turtles preferred natural beaches that border nourished areas for nesting while false crawls were more evenly distributed through the study area. Although this study documents the negative effects of beach nourishment on loggerhead sea turtle nesting, nourishment projects are likely to continue because of their benefits to human populations. Further examining of the impacts that humans have on nesting and developing loggerheads will ultimately aid policy formation as we continue to manage and protect the future of the species.
Download or read book The Effect of Beach Nourishment on Loggerhead Sea Turtle Caretta Caretta Nesting in South Carolina written by Julia I. Byrd and published by . This book was released on 2004 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of Differences in Physical Properties of Sand Associated with Beach Nourishment and Effects on Loggerhead Sea Turtle Caretta Caretta Nesting in Northwest Florida written by Lori Ann Brinn and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Overall, it appears that the processes in place for nourishing and maintaining beaches in northwest Florida are not incompatible with loggerhead sea turtle nesting, and implementing shear resistance measurements as a management tool following beach nourishment projects would provide useful information to coastal managers which could be beneficial to nesting loggerhead sea turtles.
Download or read book Effects of Beach Nourishment on Nest Site Selection and Hatchling Fitness in Loggerhead Sea Turtles Caretta Caretta written by Linda E. Iocco and published by . This book was released on 1998 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Examining the Effects of Beach Nourishment on Loggerhead Sea Turtle Caretta Caretta Nest Hatching Success on Bald Head Island North Carolina written by Brianna Wilcke Elliott and published by . This book was released on 2012 with total page 102 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 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 Physical Effects of Beach Nourishment on Sea Turtle Nesting Delray Beach Florida Environmental Impact Research Program written by David Arthur Nelson and published by . This book was released on 1987 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large percentage of all sea turtle nests in the United States are located in beaches that have been nourished or renourished. Questions have been raised about how physical changes in the beaches will affect the nesting activities of these sea turtles that use nourished beaches for nesting. Delray Beach had a harder consistency from both previous nourishments and the 1984 renourishment. The cause of the harder consistency is unclear. However, finer grain size, layering of sand grains, the cohesion of silt-clay particles, equipment operation on the beach, and weight of the sand-water slurry from the hydraulic pumping are probable contributors to a harder consistency. Effects of nourishment on nesting loggerhead turtles include: (1) eggs and hatchlings were not affected negatively by the nourished sand; (2) nest depth and frequency of false digs may be affected by the harder consistency, but this effect was not evident in this study; (3) nest shape and nest digging time may be affected by sand consistency; (4) the number of nests per emergence appears to have declined following the nourishment; (5) aragonite sand may negatively affect piping hatchlings; and (6) a scrap formed at Delray Beach and will form at most beaches. The scrap may block some turtles from nesting, while some may scale the scarp, particularly if the scarp is sloped.
Download or read book The Effects of Beach Nourishment on Loggerhead Sea Turtle Nesting on Bald Head Island NC written by Clark S. Rushing and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determining the Impacts of Beach Restoration on Loggerhead Caretta Caretta and Green Turtle Chelonia Mydas Nesting Patterns and Reproductive Success Along Florida s Atlantic Coast written by Allison Whitney Hays and published by . This book was released on 2012 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial beach nourishment, the most common method to mitigate coastal erosion in the United States, is also considered the most ecologically friendly alternative for shoreline stabilization. However, this habitat alteration has the potential to impact nesting marine turtles and developing hatchlings. The first objective of this study was to determine how nourishing beaches with two different design templates affects loggerhead (Caretta caretta) and green turtle (Chelonia mydas) nesting success, the ratio of nests to the total number of nests and non-nesting emergences, and reproductive success, the ratio of hatched and emerged hatchlings to the total number of eggs deposited. Two types of restoration designs exist along the southern Brevard County, FL coastline, which supports some of the highest density loggerhead and green turtle nesting worldwide. Since 2005, approximately 35 kilometers of beach have undergone 1) full-scale restoration (typically called nourishment), where sand was added above and below the mean high tide line (2005, 2010) or 2) dune restoration, where sand was placed on the dune (2005, 2006, 2008, 2009). To quantify the effects of these restoration types, we used a Before-After-Control-Impact-Paired Series (BACIPS) model, which tests for significance between the difference in nesting success rates at the impact (engineered) and control sites (natural beach) before and after restoration ([delta]). For loggerheads, there was a significant difference in [delta] after dune restoration during the years of construction (2005, 2006, 2008, and 2009; p[less than]0.001) and one year post-construction (2007; p[less than]0.05 and 2010; p[less than]0.001). After full-scale restoration, there was a significant difference in [delta] during the years of construction (2005 and 2010; p [less than]0.001) and one year post-construction (2006; p[less than]0.001). For green turtles, there was a significant difference in[delta] after dune restoration during two of the four years of construction (2006; p[less than]0.05 and 2008; p[less than]0.01) and one of the two one-year post-construction years (2010; p[less than]0.05). After full-scale restoration, the significant difference in [delta] lasted every season (2005-2010; p[less than]0.001). There were no significant differences in [delta] for loggerhead or green turtle reproductive success rates after either type of restoration. The second objective was to use the different restoration designs to study what beach characteristics function as loggerhead nesting cues to explain why altering the beach decreases nesting success rates. We examined beach elevation and slope, sand moisture content, sand grain size, beach width, and distance traveled. Logistic regression model selection found all variables were important (R2=0.75). Further examination of trends, with each crawl divided into quarters, found beach slope served as a nesting cue. In all study sites except one, when turtles false crawled, the beach flattened out in the final quarter of the crawl. Conversely, in nesting emergences, the final quarter rose at a steeper slope than the previous quarter. Additionally, model selection found variables important in nest site selection were also important in hatching (R2=0.44) and emergence (R2=0.45) success. These results offer new insight into how and why marine turtle nesting patterns change after artificial nourishment, providing information necessary to nourish beaches in a more "turtle-friendly" manner.
Download or read book Beach Nourishment written by Jenna Caderas and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Broward County, Florida is a popular tourism destination. Due to its popularity, much of the shoreline has been modified and natural habitats were replaced with infrastructure such as houses, condominiums, resorts, and restaurants. The same Broward County beaches utilized by tourists and residents are important for three species of nesting sea turtles, including the Leatherback, Dermochelys coriacea, Loggerhead, Caretta caretta, and Green, Chelonia mydas, Turtles. The Broward County Sea Turtle Conservation Program (BCSTCP) collects yearly data in order to study these endangered reptiles. Increased anthropogenic effects including further coastal development (public & private), public beach events, public beach access, as well as natural events, have caused these important nesting beaches to erode and narrow. In an effort to control this erosion damage, Broward County has performed a number of beach nourishment projects. This study found yearly fluctuations in sea turtle hatching and emergence success rates, and years of beach nourishment projects significantly decreased these rates. Yearly hatching data available from Broward County concludes that beach nourishment, as well as hurricanes and tropical storms cause decreases in sea turtle hatching and emergence success rates in Broward County. Additionally, nest depth and sea turtle size increases the hatching and emergence success rates from females that are not too large or too small that nest in Broward County.
Download or read book Effect of Beach Nourishment on Sediment Temperatures of Caretta Caretta Nesting Habitat in Southeastern North Carolina written by Rebecca Tolzman and published by . This book was released on 2003 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessing Beach Nourishment Impacts on Loggerhead Sea Turtle Caretta Caretta Reproduction on Bogue Banks Island North Carolina written by Alicia Nicole Mihnovets and published by . This book was released on 2005 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Response of Nesting Sea Turtles to Tilling of Compacted Beaches Jupiter Island Florida written by David Arthur Nelson and published by . This book was released on 1988 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to examine nest establishment and hatching success of nests of sea turtles in a compacted, nourished beach which has been tilled to decrease sand compaction. This study demonstrates the effectiveness of tilling at a full scale commercial level and the response of nesting turtles to the tilled beach.
Download or read book Recovery Plan for Marine Turtles written by Sally R. Hopkins and published by . This book was released on 1984 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tidally Driven Gas Exchange written by Jaren-Claude Serano and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tidally-driven gas exchange and its impact on hatchling emergence success is an emerging paradigm in sea turtle Eco-physiological literature. Gas exchange within a sea turtle's nest is a crucial factor for successful incubation, as lack of it can lead to asphyxiation of the embryos during inundation events. Results from this study elucidate the effects of tidally-driven gas exchange on hatchling emergence success, and how beach nourishment and climate-induced coastal alteration may affect the long-term survival of loggerhead turtles (Caretta caretta). Using a soil respiration chamber, I examined the effects of the tidal cycle on gas efflux readings across three tidal elevation zones at three distinctive beaches in Cape San Blas, Florida. The highest CO2 efflux was observed four hours after high tide. Sediment particle size analysis was conducted to identify the sand's physical characteristics and to correlate the findings with efflux patterns, to determine the possible effects of both gas efflux and sand grain particle size on hatchling emergence. The sediment analysis revealed that across and among all beaches and zones the greater proportion of sand grain size were between 125micrometer -250micrometer. This study can be utilized as an informative tool to raise awareness about the impacts of our ecological footprint on critical nesting beaches and can be very useful to managers and planners associated with coastline conservation in the Florida Panhandle.
