Relevant bibliographies by topics / Turtle

Academic literature on the topic 'Turtle'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 July 2024

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Journal articles on the topic "Turtle"

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Will Helmina, Leony Regina. "Upaya Konservasi Penyu sebagai Penyelamat dari Ancaman Kepunahan dalam Perspektif Islam." Es-Syajar:Journal of Islam, Science and Technology Integration 2, no. 1 (March 23, 2024): 153–59. http://dx.doi.org/10.18860/es.v2i1.18182.

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Turtle is one of the marine fauna that is protected because its existence is threatened with extinction. The high exploitation of turtles will threaten the sustainability of turtles in the future. Turtles are hunted a lot because of the high selling value of turtle body parts. The uniqueness of the shells on turtles to be used as accessories, until they are preserved for display is a common thing. In addition, the extinction of turtles also occurs because turtles are often trapped in fishing nets and turtles are carried by strong currents to hit coral which causes many turtle carcasses to be found. Through these problems, marine environmentalists find the right solution. To cope with the extinction, turtle breeding centers were built in various coastal areas in Indonesia. Various elements of society work together in efforts to conserve turtles. As a result, there are turtle breeding sites on every coast, for example turtle conservation on Pangumbuhanbeach in West Java, turtle conservation in Bali, and turtle conservation in Banyuwangi. Allah has given the mandate to humans as stated in the Qur'an.
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Adi Eti Harnino, Taurus Zeno, I. Nyoman Yoga Parawangsa, Luthfiana Aprilianita Sari, and Sulastri Arsad. "Effectiveness of Sea Turtle Conservation Management at the Turtle Conservation and Education Center of Serangan, Denpasar Bali." Journal of Marine and Coastal Science 10, no. 1 (February 22, 2021): 18. http://dx.doi.org/10.20473/jmcs.v10i1.25604.

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Turtles are one of the reptile animals that can migrate long distances along the Indian Ocean, Pacific Ocean and Southeast Asia. The purpose of turtle migration is to mate, find spawning locations and to find food. Sea turtles have an important role in maintaining the balance of the marine ecosystem. However, the high utilization of sea turtles by humans causes the turtle population to decline. One of the conservation sites that help the government program is in Serangan, Denpasar Bali, namely the TCEC (Turtle Conservation and Education Center), where there are several types of turtles such as the lekang turtle, hawksbill and green turtle. Data collection techniques in this study used observation methods including beach monitoring, relocation of turtle eggs to semi-natural hatchery hatching, hatchling and turtle nesting as well as measurement of turtle length and width carapase curve (CCL/CCW), sand temperature, nest depth, nest diameter, nest distance and nest calculation of the number of eggs to see the success of hatching. The results are turtle conservation activities, ranging from turtle maintenance, hatching of turtle eggs, relocation of eggs, and maintenance of hatchlings to release turtles. The effectiveness given by TCEC to manage and preserve the existence of sea turtles in Indonesia, especially in the Bali region is to provide awareness to the community by not consuming eggs and turtle meat.
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Báez, José C., David Macías, Salvador García-Barcelona, and Raimundo Real. "Interannual Differences for Sea Turtles Bycatch in Spanish Longliners from Western Mediterranean Sea." Scientific World Journal 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/861396.

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Recent studies showed that regional abundance of loggerhead and leatherback turtles could oscillate interannually according to oceanographic and climatic conditions. The Western Mediterranean is an important fishing area for the Spanish drifting longline fleet, which mainly targets swordfish, bluefin tuna, and albacore. Due to the spatial overlapping in fishing activity and turtle distribution, there is an increasing sea turtle conservation concern. The main goal of this study is to analyse the interannual bycatch of loggerhead and leatherback turtles by the Spanish Mediterranean longline fishery and to test the relationship between the total turtle by-catch of this fishery and the North Atlantic Oscillation (NAO). During the 14 years covered in this study, the number of sea turtle bycatches was 3,940 loggerhead turtles and 8 leatherback turtles, 0.499 loggerhead turtles/1000 hooks and 0.001014 leatherback turtles/1000 hooks. In the case of the loggerhead turtle the positive phase of the NAO favours an increase of loggerhead turtles in the Western Mediterranean Sea. However, in the case of leatherback turtle the negative phase of the NAO favours the presence of leatherback turtle. This contraposition could be related to the different ecophysiological response of both species during their migration cycle.
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Guimarães, Suzana Machado, Davi Castro Tavares, and Cassiano Monteiro-Neto. "Incidental capture of sea turtles by industrial bottom trawl fishery in the Tropical South-western Atlantic." Journal of the Marine Biological Association of the United Kingdom 98, no. 6 (March 27, 2017): 1525–31. http://dx.doi.org/10.1017/s0025315417000352.

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The five sea turtle species occurring in Brazilian waters are susceptible to threats, including incidental catches by fisheries. Studies on incidental captures in fishing gears are the main focus of several conservation actions due to high sea turtle fishery mortality worldwide. This study provides the first evaluation of incidental sea turtle catches by industrial bottom trawl fisheries operating in Brazilian waters. Four twin-trawler vessels were monitored between July 2010 and December 2011 by captains who voluntarily completed logbooks. Forty-four turtles were captured during the 1996 tows (8313 fishing hours), resulting in a catch of 5.3 ± 0.8 turtles per 1000 h per unit effort. Captured species included the loggerhead turtle (Caretta caretta, 22 individuals), olive ridley turtles (Lepidochelys olivacea, 21 individuals) and one green turtle (Chelonia mydas). Water depth was the only variable that significantly affected sea turtle captures according to Generalized Linear Models. The capture rates reported in this study ranked sixth in relation to other published studies of similar fisheries occurring worldwide. Considering the importance of this region for sea turtles, the increasing evidence of sea turtle mortality and the goals of the National Action Plan for Conservation of Sea Turtles in Brazil, it is essential to identify the main threats towards these animals and propose mitigating solutions to reduce sea turtle mortality induced by fishing activities. This study provides results that may guide future research and goals in meeting sea turtle conservation strategies.
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Myers, Andrew T., and James P. Gibbs. "Landscape-level Factors Influencing Bog Turtle Persistence and Distribution in Southeastern New York State." Journal of Fish and Wildlife Management 4, no. 2 (April 1, 2013): 255–66. http://dx.doi.org/10.3996/052012-jfwm-044.

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Abstract The bog turtle Glyptemys muhlenbergii is a highly endangered species inhabiting freshwater wetlands of the eastern United States. Habitat degradation is considered one of the chief causes of bog turtle declines. Most of the studies investigating habitat requirements of bog turtles focus on intrawetland influences on bog turtle habitat, but few have explored landscape-level drivers of bog turtle distribution. To better understand causes of bog turtle declines, we combined bog turtle occurrence records with geographic data to contrast 12 landscape variables among wetlands containing extant populations of bog turtles (n = 65) and 500 nearby and 500 distant, randomly located wetlands in southeastern New York State. In contrast to randomly chosen wetlands, bog turtles have persisted in relatively large, open-canopy wetlands (typically >0.42 ha) within large watersheds (typically >13.54 ha), in wetlands with more numerous stream connections, and more often in wetlands positioned atop carbonaceous rock types. Wetlands occurring within carbonaceous surficial geological settings may be more resistant to bog turtle habitat degradation and hence likely to support more persistent populations of bog turtles. Our findings that geomorphic features and intrawetland vegetation are the most useful predictors of bog turtle occurrence and persistence in southeastern New York State are important for generating more detailed hypotheses regarding drivers of bog turtle declines and are also helpful for prioritizing sites for bog turtle conservation and guiding surveys to discover new populations.
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Fadli, S. N., N. H. Idris, M. J. Osman, N. Othman, and M. H. I. Ishak. "Spatial Distribution and the Influence of Surface Temperature and Green Area on Sea Turtle Nesting Sites in Peninsular Malaysia." IOP Conference Series: Earth and Environmental Science 1240, no. 1 (September 1, 2023): 012012. http://dx.doi.org/10.1088/1755-1315/1240/1/012012.

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Abstract Malaysia is home to four of the seven sea turtles in the world, with Malaysian islands being one of the potential areas for sea turtle landing and nesting. However, sea turtles are classified as endangered species because they face extinction mainly due to land use changes, human marine activities, and environmental factors. As a result, they are now among the most important resources for ecotourism. Green turtles are the most prevalent species (endangered), while the hawksbill turtle is one of the world’s most seriously endangered marine turtle species today. Hence, considering the importance of improving turtle habitat in Malaysia, this study investigated the sea turtle’s nesting site preference in Peninsular Malaysia using spatial analysis. The objectives of this study are (1) to map sea turtle nesting sites in Peninsular Malaysia for five years (from 2017-2021) and (2) to identify the influence of surface temperature and landscape characteristics on sea turtle nesting habitats. This study used the binomial regression method to determine the significant environmental factors such as temperature, distance from the green area and the coastal line that could influence the preference for sea turtle habitat. The results show a positive relationship between temperature and that more sea turtles will nest and land in the area with the higher temperature. Also, more sea turtles prefer to land and nest near green areas. These findings confirmed the influence of green areas in turtle nesting sites in Peninsular Malaysia. It could assist the authorities in further understanding the importance of green areas in turtle nesting site preference and developing a mitigation plan to protect sea turtle habitat.
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Yudha, Donan Satria, Fidelis Triki Sadewa Aritona, and Rury Eprilurahman. "Characteristics of Shell Bone as an Identification Tool for Turtle Species (Reptiles: Testudines) in Java, Borneo, and Sumatra." Journal of Tropical Biodiversity and Biotechnology 5, no. 1 (April 14, 2020): 35. http://dx.doi.org/10.22146/jtbb.47227.

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There are 42 species of turtles; including sea turtle, freshwater turtle, tortoise, and softshell turtle (Reptilia: Testudines) living in Indonesia today. Turtles have economic values for quite a long time and it has led to illegal trade such as smuggling of carapace and plastron bones. Identification is needed to find out more details about the turtle species. Turtles have shells as unique features with different characteristics on each species. Shell’s identification usually relies on the shape of carapace and plastron. The purpose of this research is to understand turtle shell morphological characters and determine the diagnostic characters of each species. We conducted visual observation on specimen collections from the Laboratory of Animal Systematics, Faculty of Biology, Universitas Gadjah Mada and Museum of Biology, Faculty of Biology, Universitas Gadjah Mada. The result shows that each turtle species have their own unique shell bone’s characters, therefore it can be used to determine each turtle species of Indonesia.
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Sayuti, Mohammad, Ferliana Widasari, Ahmad Junaidi, Agung Setia Abadi, and Achmad Sofian. "EDUCATION ON HANDLING GREEN TURTLE (Chelonia mydas) INJURED DUE TO ILLEGAL ARREST OF COMMUNITY PERSONS IN SUPRAU VILLAGE." Buletin SWIMP 1, no. 02 (November 9, 2021): 047–56. http://dx.doi.org/10.15578/bs.v1i02.12.

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The number of turtle populations from year to year has decreased. One of the causes is the arrests made by the community for consumption purposes. On April 29, 2021, a green turtle was eaten by the Directorate of Polair, Sorong City, with an injured condition that will be used as food for consumption. The purpose of this activity is to educate the public on the handling of injured turtles and socialize related to turtle conservation. The method of turtle handling activities is direct daily care with medication and turtle feeding programs, while socialization activities are carried out with mini workshops attended by representatives of the Marine and Fisheries Resources Supervisor, Sorong Marine and Fisheries Polytechnic, Directorate of Polair Sorong City, West Papua Natural Resources Conservation Center, Sorong District Court, Sailing Science Education and Training Center, Sorong City Fisheries Service, Papua Turtle Foundation, Conservation International (CI) and Nusantara Nature Conservation Foundation and public figure. The results of the activities for handling injured turtles, healthy turtles returned with dry wounds so that the turtles could be released into the wild. The socialization activity went smoothly with increasing understanding regarding the importance of turtle conservation by the community by signing a Memorandum of Understanding related to turtle conservation.
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Dupuis-Desormeaux, Marc, Christina Davy, Amy Lathrop, Emma Followes, Andrew Ramesbottom, Andrea Chreston, and Suzanne E. MacDonald. "Colonization and usage of an artificial urban wetland complex by freshwater turtles." PeerJ 6 (August 8, 2018): e5423. http://dx.doi.org/10.7717/peerj.5423.

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Conservation authorities invest heavily in the restoration and/or creation of wetlands to counteract the destruction of habitat caused by urbanization. Monitoring the colonization of these new wetlands is critical to an adaptive management process. We conducted a turtle mark-recapture survey in a 250 ha artificially created wetland complex in a large North American city (Toronto, Ontario). We found that two of Ontario’s eight native turtle species (Snapping turtle (SN), Chelydra serpentina, and Midland Painted (MP) turtle, Chrysemys picta marginata) were abundant and both were confirmed nesting. The Blanding’s turtle (Emydoidea blandingii) was present but not well established. Species richness and turtle density were not equally distributed throughout the wetland complex. We noted SN almost exclusively populated one water body, while other areas of the wetland had a varying representation of both species. The sex ratios of both SN and MP turtles were 1:1. We tracked the movement of Snapping and Blanding’s turtles and found that most turtles explored at least two water bodies in the park, that females explored more water bodies than males, and that 95% of turtles showed fidelity to individual overwintering wetlands. We performed DNA analysis of two Blanding’s turtles found in the created wetlands and could not assign these turtles to any known profiled populations. The genetic data suggest that the turtles probably belong to a remnant local population. We discuss the implications of our results for connectivity of artificial wetlands and the importance of the whole wetland complex to this turtle assemblage.
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Weir, Caroline R., Tamar Ron, Miguel Morais, and Agostinho Domingos C. Duarte. "Nesting and at-sea distribution of marine turtles in Angola, West Africa, 2000–2006: occurrence, threats and conservation implications." Oryx 41, no. 2 (April 2007): 224–31. http://dx.doi.org/10.1017/s003060530700186x.

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AbstractThe status of marine turtles in Angola, West Africa, is poorly known, and therefore during 2000–2006 a combination of both dedicated and opportunistic beach and at-sea turtle surveys were carried out, and interviews conducted with fishing communities and at markets. Green Chelonia mydas, olive ridley Lepidochelys olivacea, leatherback Dermochelys coriacea and loggerhead turtles Caretta caretta were recorded, and nesting of the first three species confirmed during September–March (peaking November–December). Green turtles nested mainly in the south, leatherback turtles in north and central Angola, and olive ridley turtle nesting was widespread. Olive ridley turtle nest density at Palmeirinhas averaged 32 nests km−1. At-sea surveys produced 298 turtle records, with peak occurrence during August. Significant anthropogenic-related mortality (including exploitation of meat and eggs and fishing bycatch) was recorded, in addition to natural predation and other threats. Maintenance of the long-term sustainability of these turtle populations should focus on the involvement of fishing communities and increasing awareness throughout Angola.
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Dissertations / Theses on the topic "Turtle"

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Goshe, Lisa R. "Age at maturation and growth rates of green sea turtles (Chelonia Mydas) along the southeastern U.S. Atlantic Coast estimated using skeletochronology." View electronic thesis (PDF), 2009. http://dl.uncw.edu/etd/2009-1/goshel/lisagoshe.pdf.

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Weiss, Justin Adam. "Demographics, activity, and habitat selection of the Eastern Box Turtle (terrapene c. carolina) in West Virginia." [Huntington, WV : Marshall University Libraries], 2009. http://www.marshall.edu/etd/descript.asp?ref=945.

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Le, Gouvello Du Timat Diane Zelica Marie. "The effects of turtle-introduced nutrients on beach ecosystems." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/6959.

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Resource subsidies are flows of nutrients from one ecosystem to another. Sandy beach ecosystems are at the interface between land and sea and thus receive nutrients from both land/seascapes. The seasonal nesting of sea turtles introduces large inputs of eggs, and so nutrients, onto sandy beach ecosystems, but little is known about the effects of these spatially and temporally variable nutrient input pulses on the dynamics of consumers in the recipient system. In this study, I examined the ecological role of sea turtles as vectors of nutrients that introduce large amounts of nutrients (in the form of eggs) from distant foraging grounds into nutrient-poor beach ecosystems. Although some of the nutrients return to the sea in the form of hatchlings, nutrients from unhatched and depredated eggs, dead and predated hatchlings, as well as chorioallantoic fluid and egg shells remain on the beach and presumably enter sandy beach food webs. I hypothesized that turtle nutrients significantly increase the availability of nutrients to sandy beach ecosystems and that those nutrients are incorporated by both terrestrial and marine food webs. These hypotheses were tested by comparing isotopic signatures of 13C and 15N of consumers on beaches with high and low turtle nest densities. The response of meiofauna to the decomposition of turtle eggs was also investigated. I predicted that meiofaunal abundance is positively affected by turtle nutrients and that higher meiofaunal abundances will be obtained in decomposing, depredated nests. I tested this hypothesis by comparing meiofaunal abundance in naturally predated nests to densities away from turtle nests (as a control). An in situ experiment that mimics conditions of naturally predated sea turtle nest, was set up to test meiofaunal community responses to turtle nutrients over time. The study indicates that sea turtle eggs represent a short pulsed resource subsidy that increases the nutrient and energy budget of sandy beach ecosystems. The results show that of the five potential nutrient pathways tested, ghost crabs appear to consume egg nutrients in measurable quantities, altering their diet and feeding behaviour according to food availability. The study also showed that there was a strong, but short-lived positive response of meiofauna to the introduction of nutrients, with increased abundance of all taxa in predated nests and experimental treatments. This response was particularly strong for nematodes which peaked in abundance after seven days. I conclude that turtle-derived nutrients represent a pulsed resource subsidy that makes significant contribution to the energy budget of sandy beach/dune ecosystems.
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Huang, Weizhong, and Weizhong Huang. "Turtle Beach." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1811.

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This paper thoroughly examines the production of the thesis film, Turtle Beach. Each area of the film’s production is carefully dissected, including the writing, production design, cinematography, directing, editing, sound, technology, workflow and visual effect. Specific attention has been paid to writing and cinematography, and how they affect editing.
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Robertson, Mike. "The turtle /." Read thesis online, 2008. http://library.uco.edu/UCOthesis/RobertsonM2008.pdf.

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Richardson, Peter Bradley. "Managing marine turtles : a study of marine turtle conservation science and policy." Thesis, University of Exeter, 2011. http://hdl.handle.net/10036/3167.

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Marine turtles are an ancient group of reptiles that have been used by humans as a source of protein for over 7,000 years. In recent decades, acknowledgement of the various threats to marine turtles, including the deleterious impact of historical and contemporary use on many populations, led the International Union for the Conservation of Nature (IUCN) to list all seven extant species of marine turtle on their Red List of Threatened Species. Consequently, marine turtles are often given protected status in the national legislation of countries around the world, despite the existence of ongoing use cultures in communities that live with marine turtles. Conservation strategies are challenged by the migratory nature of marine turtles, which have complex life histories typically involving the use of habitats in the jurisdictions of multiple sovereign states as well as the high seas. As a result, a suite of multi-lateral environmental agreements (MEAs) list marine turtles in the most highly protective categories. Thus, governments of sovereign states that have acceded to the various MEAs are committed to conservation strategies requiring national action and cooperative multi-lateral action, which can conflict with interests of communities with a tradition of marine turtle consumption. In this thesis I provide examples of how contemporary scientific research methods can elucidate the migratory behaviours of marine turtles, and can help define range of populations subject to national conservation action and use. I examine specific examples of how this information can inform national and multi-lateral conservation policies and strategies; how those policies and strategies interact and impact on traditional cultures of marine turtle use in the UK Overseas Territories in the Caribbean; and provide an example of the potential benefits of engaging stakeholders with contemporary research methods. This thesis highlights the utility of a multi-disciplinary approach to research underpinning marine turtle conservation and management, which acknowledges the limitations of MEAs and national government capacity, and which incorporates participation of those communities engaged in marine turtle consumption.
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de, Wet Anje. "Factors affecting survivorship of loggerhead (Caretta caretta) and leatherback (Dermochelys coriacea) sea turtles of South Africa." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1007900.

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Loggerhead (Caretta caretta) and leatherback (Dermochelys coriacea) sea turtles as well as their eggs and hatchlings have been protected on their nesting beach in South Africa (SA) since 1963. Both nesting populations were expected to show similar trends in recovery following the application of identical protection and conservation measures. The loggerhead nesting population has responded favourably to these protection efforts. In contrast, the leatherback nesting population showed an initial increase but is currently stable. The reason for this difference in response is thought to be due to differential offshore mortality of these two species. This prompted an investigation into the different sources of sea turtle mortality in the South Western Indian Ocean (SWIO). Specific aims were to identify and quantify sources of loggerhead and leatherback mortality on nesting beaches as well as in the oceans. Reasonable survivorship at all age classes is important to ensure recruitment of new nesting individuals into sea turtle populations. Mortality of nests, eggs per nest and hatchlings were quantified over two seasons for the loggerheads and leatherbacks nesting in SA. The beach was patrolled on foot to encounter and record females emerging from the ocean and later, hatchlings from their nests. The nests were then monitored during the incubation period and excavated once hatched. The fates of 925 nests were determined during these two nesting seasons (2009/2010 and 2010/2011). The main source of loggerhead and leatherback nest destruction was predation (8.6 percent and 15.7 percent respectively) followed by nest erosion (2.2 percent and 6.3 percent respectively). Overall nest success was high but higher for loggerheads (89 percent) than for leatherbacks (78 percent). The main cause of egg mortality for both species was early developmental arrest, followed by predation by ants and ghost crabs. Hatchlings en route to the sea were almost exclusively predated by ghost crabs (4.2 percent of emerged loggerhead hatchlings and 3.2 percent of emerged leatherback hatchlings). It appears that both species benefit from the coastal conservation efforts. When sea turtles leave the nesting beach, either as hatchlings or adults, conservation and monitoring becomes more difficult and sea turtles are exposed to a multitude of threats, including anthropogenic threats. Age classes tend to be spatially separated due to different habitat and dietary requirements. The type of threat sea turtles are exposed to thus depends on the current age class. Offshore sources of mortality in the SWIO were identified and where possible loggerhead and leatherback mortality was quantified and mapped spatially. Loggerheads were mostly exposed to and had the highest mortality in the artisanal fisheries in the SWIO (> 1000 per annum), inshore trawling (ca. 41 per annum), shark nets (protective gill nets) (21.6 ± 6.7 per annum) and the pelagic longline fishery (5.0 ± 4.4 per annum). In contrast, leatherbacks with a pelagic lifestyle, were mostly exposed to pelagic longline fisheries (7.8 ± 7.8 per annum). A spatial analysis of fishing activities indicated that leatherback home ranges overlapped 41percent with pelagic longline fishing activity in the SA EEZ, whereas the overlap between pelagic longliners and loggerhead home ranges was 29 percent. The quantified sources of mortality provide some explanation for the trend in the loggerhead nesting population but not the trend in the leatherback nesting population. Hatchling survivorship to adulthood was estimated to determine the viability of the two nesting populations as well as to determine whether offshore mortality was responsible for the difference in recovery of the two populations. Loggerhead hatchling survivorship to adulthood was estimated at between 2 and 10 per 1000 hatchlings, the minimum requirement for an increasing population. The adopted sophisticated model shows that leatherbacks have a survival rate of 5 to 10 per 1 000 hatchlings. However, this suggests that the population is increasing, but the leatherback population is stable. Perhaps the age to maturity of SA leatherbacks is greater than 12 years, or fisheries-related mortality affects younger age classes than initially thought. It is therefore recommended that the turtle monitoring area is extended to include other potential nesting grounds. In addition, observer or monitoring programs for commercial as well as artisanal fisheries needs to be extended throughout the SWIO to quantify sea turtle mortality. Ultimately a comprehensive multi-regional approach is required for the conservation of these highly migratory species.
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Thomas, Rebecca Claire. "Molecular epidemiology of Trichomonas gallinae in European Turtle Doves (Streptopelia turtur)." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/18558/.

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Disease is usually ignored as a potential driver of species decline. This is concerning since disease could have a greater impact on a species as it becomes vulnerable to other extinction risks. This thesis investigated Trichomonas gallinae infection in the UK’s fastest declining farmland bird, the European Turtle Dove Streptopelia turtur. It employed molecular techniques to acquire data on parasite prevalence and identify strains, and trialled the application of Next Generation Sequencing technology to disease surveillance. Overall, 50 adult Turtle Dove samples from 2011-2015 were analysed and temporal variation in strain frequency was revealed. A degree of population structure in T. gallinae infecting different Turtle Dove populations (France 2014, n=40; Senegal, n=28) was apparent, along with some evidence of wide-ranging parasite dispersal, indirectly through their host. The potential risk of shared resources as a transmission route of T. gallinae was investigated with 226 food and 117 water samples screened for its presence. Evidence suggested T. gallinae was regularly present in both food and water resources. This has important implications for supplementary feeding being a conservation management tool. The reservoir of T. gallinae in the UK was reviewed by sampling potential hosts of Columbidae (n=166), Galliformes (n=13) and Passeriformes (n=90). The detection of strains other than the finch epidemic strain in free-ranging Passerines revealed a greater level of genetic heterogeneity than previously shown in other studies. There were no significant associations between T. gallinae strain infection or coinfection with haemosporidians and measures of reproduction, body condition or post-fledging survival in Turtle Doves however, sample sizes were small. Overall, this study increases our understanding of the epidemiology of T. gallinae both in the wider bird population and a species of Vulnerable conservation status. It demonstrates how T. gallinae infecting wild birds is a useful model for investigating aspects of host- parasite ecology and encourages further research with this system.
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Griffin, Kathleen Ann Pletscher Daniel H. "Spatial population dynamics of western painted turtles in a wetland ecosystem in northwestern Montana." CONNECT TO THIS TITLE ONLINE, 2007. http://etd.lib.umt.edu/theses/available/etd-05272008-135912/.

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Thesis (Ph. D.)--University of Montana, 2007.
Title from title screen. Description based on contents viewed Aug. 14, 2008. Includes 2 appendices: Potential effects of highway mortality and habitat fragmentation on a population of painted turtles in Montana, and Fencing methods and efficacy for minimizing turtle road kill and directing turtles to crossing structures, both by Kathy Griffin and Daniel H. Pletscher. Includes bibliographical references.
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Cason, Heather L. "Nesting behavior, growth rates, and size distribution of loggerhead sea turtles (Caretta caretta) on Blackbeard Island National Wildlife Refuge an evaluation of recruitment in Georgia /." Click here to access thesis, 2009. http://www.georgiasouthern.edu/etd/archive/spring2009/heather_l_cason/cason_heather_l_200901_ms.pdf.

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Thesis (M.S.)--Georgia Southern University, 2009.
"A thesis submitted to the Graduate Faculty of Georgia Southern University in partial fulfillment of the requirements for the degree Master of Science." Directed by David C. Rostal. ETD. Includes bibliographical references (p. 47-49)
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Books on the topic "Turtle"

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Beirne, Gerard. Turtle turtle turtle. Ottawa, ON: Oberon Press, 2009.

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Sayre, April Pulley. Turtle, turtle, watch out! New York: Orchard Books, 2000.

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Sayre, April Pulley. Turtle, turtle, watch out! Watertown, MA: Charlesbridge, 2009.

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Meylan, Anne Barkau. Sea turtle nesting activity in the state of Florida, 1979-1992. St. Petersburg, Fla: State of Florida, Dept. of Environmental Protection, Florida Marine Research Institute, 1995.

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Nicola, Davies. One tiny turtle. London: Walker Books, 2001.

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Archambault, John. Turtle song: A loggerhead turtle crawls out of the sea. Mount Joy, PA: Childcraft, 2006.

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Hamilton, Lynn. Turtle. New York, NY: Weigl Publishers, 2009.

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Spilsbury, Louise. Turtle. Oxford: Raintree, 2012.

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Flank, Lenny. Turtle. New York: John Wiley & Sons, Ltd., 2007.

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Lynn, Hamilton. Turtle. New York: Weigl Publishers, 2010.

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Book chapters on the topic "Turtle"

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Samston, M. S. "Turtle." In Phunny Stuph, 134. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003237174-98.

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Zug, George R. "Turtles of the Lee Creek Mine (Pliocene: North Carolina)." In Geology and paleontology of the Lee Creek Mine, North Carolina, III, 203–18. Washington, D.C.: Smithsonian Institution Press, 2001. http://dx.doi.org/10.5479/si.00810266.90.203.

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Eleven taxa of turtles have been recovered from the Lee Creek Mine: a sideneck turtle ( Bothremys); six seaturtles ( Caretta, IChelonia, Lepidochelys, Procolpochelys, Syllomus, and Psephophorus); two pond turtles (probably Pseudemys and Trachemys); a softshell turtle (trionychid); and a giant tortoise ( Geochelone ). The fossils are largely disassociated skeletal elements and fragments derived from spoil piles created by drag-line mining of phosphate. The mining removes and discards the Yorktown Formation (Pliocene) and processes much of the Pungo River Formation (middle Miocene), hence the Lee Creek Mine turtles are mainly from the lower Pliocene. The turtle fauna appears to be a natural assemblage of extant and extinct taxa. Caretta and Syllomus are the most abundant fossils; a few specimens of each had some adherent Yorktown matrix. Geochelone fossils are next in abundance, although an order of magnitude less than Caretta and Syllomus. The other genera are each represented by fewer than 10 fragments or elements. Cranial and carapacial differences indicate that the Lee Creek Caretta represents a new species, C. patriciae. The Geochelone also differs from its eastern North American Pliocene contemporaries by its larger size and unique plastral morphology. The fossils of the other taxa are too few and fragmentary to identify reliably to species or genus.
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O’Hara, James E., Igor UsUpensky, N. J. Bostanian, John L. Capinera, Reg Chapman, Carl S. Barfield, Marilyn E. Swisher, et al. "Turtle Beetles." In Encyclopedia of Entomology, 3995. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_2596.

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Schauer, Helmut. "Turtle-Geometrie." In Logo, 1–15. Vienna: Springer Vienna, 1988. http://dx.doi.org/10.1007/978-3-7091-8936-8_1.

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Deussen, Oliver, and Thomas Ningelgen. "Turtle-Grafik." In Programmieren lernen mit Computergrafik, 129–40. Wiesbaden: Springer Fachmedien Wiesbaden, 2018. http://dx.doi.org/10.1007/978-3-658-21145-5_11.

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Risby, Bonnie, and Annelise Palouda. "Turtle Race." In Logic Safari, 20. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003236290-17.

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Zantema, Hans. "Turtle figures." In Playing with Infinity, 72–90. Boca Raton: A K Peters/CRC Press, 2024. http://dx.doi.org/10.1201/9781003466000-6.

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Jones, Robin, and Ian Stewart. "Implementing Turtle Graphics..." In The Art of C Programming, 132–44. New York, NY: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-8685-8_15.

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Gascoigne, Serafim. "Some turtle terms." In Turtle Fun LOGO for the Spectrum 48K, 16–26. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-08240-7_5.

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Hunt, John. "Python Turtle Graphics." In Advanced Guide to Python 3 Programming, 13–21. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-25943-3_3.

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Conference papers on the topic "Turtle"

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Kelly, Bethany, Kenny Nguyen, Zach Miles, Salvador Mayoral, Susan Piacenza, Cheng Zhang, and Joseph Piacenza. "Exploring Design Trades to Extend Useful Life of Platform Terminal Transmitters on Sea Turtles." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97473.

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Abstract Satellite-linked platform terminal transmitters (PTTs) are important tools for conducting research of sea turtles in their marine habitats. Appropriate conservation actions can be identified using PTTs, mounted to the top of sea turtles’ shells, to collect information about migratory routes and habitat usage. However, there is concern that PTTs introduce hydrodynamic drag that may bias natural sea turtle behavior, making the migratory and habitat data inaccurate representations of the “untagged” population. PTTs also have limited attachment durations, hypothesized to be caused by hydrodynamic loading and shell expansion during growth. The aim of this research is to investigate the hydrodynamic drag induced by PTTs on juvenile hard-shelled sea turtles, with the broader goal of increasing deployment duration and minimizing behavioral effects. A computational fluid dynamics (CFD) model was created to simulate the hydrodynamics of juvenile sea turtles. The drag and lift coefficients for five PTTs, virtually attached to the sea turtle model, were calculated using numerical methods. A comparison table of PTT performance is presented. The results will be used to explore PTT form factor design trades-offs that reduce hydrodynamic loading, while still meeting operational requirements. This research could enable biologists to collect data that more accurately represents the untagged sea turtle population.
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Piacenza, Joseph, Susan Piacenza, Salvador Mayoral, Alexia Kenney, and Nikolai Shields. "Design Opportunities for Sea Turtle Satellite Tracking Devices." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-85583.

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Satellite-linked platform terminal transmitters (PTTs) enable biologists to study movements of sea turtles. However, PTTs often fail due to limited battery life, antenna breakage, biofouling, saltwater switch failure, and premature tag detachment. Also, PTTs induce hydrodynamic drag and may bias sea turtle behavior. Advances in technology continue to improve PTTs, however, design opportunities remain so that deployment duration is increased and behavioral biases are limited. We review how PTTs are used to obtain information on sea turtle biology, the current state-of-the-art, review recent innovations and highlight potential areas for design improvements. There remain several areas to focus on design improvements: (1) improve attachment methods so as to stretch as juveniles grow but do not add additional height to tag profile, (2) improve tag profile and attachment location on the turtle carapace to limit hydrodynamic drag, (3) experiment with different energy harvesting options to extend deployment duration, and (4) improve antenna design and material to enhance robustness and transmission quality. Capitalizing on emerging technology that allows for increasing miniaturization will likely create tags that extend deployment duration and induce negligible behavioral biases and will create data that best represents the true biology of sea turtle species in-water.
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Bertoldi, Guilherme, and Aurélio Hoppe. "A method for photo-identification of turtles of the Phrynops williamsi species." In Workshop de Computação Aplicada à Gestão do Meio Ambiente e Recursos Naturais. Sociedade Brasileira de Computação - SBC, 2020. http://dx.doi.org/10.5753/wcama.2020.11018.

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This paper presents a method for photo-identification of Phrynops williamsi turtles. This identification is performed using shape descriptors which computationally represent the horseshoe-shaped and circular-shaped bands that can be found on the ventral surface of the turtle's head. The input image is converted to grayscale, binarized, filtered with morphologic operations, segmented based on the contours of the object and the components are selected based on their geometric characteristics. With the extraction of these characteristics, the method calculates de Fourier Descriptors and create a unique identifier used to identify the turtle from the input image. Results show that the presented method has reached a success rate of 85.71% in intra-class comparison and 85.17% in inter-class comparison.
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Strobl, Kim. "Clorox "turtle"." In ACM SIGGRAPH 2008 computer animation festival. New York, New York, USA: ACM Press, 2008. http://dx.doi.org/10.1145/1400468.1400489.

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Nikolaou, Stavros, and Robbert Van Renesse. "Turtle Consensus." In Middleware '15: 16th International Middleware Conference. New York, NY, USA: ACM, 2015. http://dx.doi.org/10.1145/2814576.2814811.

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Nizzi, Josh. "Turtle trouble." In ACM SIGGRAPH 99 Electronic art and animation catalog. New York, New York, USA: ACM Press, 1999. http://dx.doi.org/10.1145/312379.313102.

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Rama, Hendrik. "Turtle graphics." In the APL98 conference. New York, New York, USA: ACM Press, 1998. http://dx.doi.org/10.1145/327559.327615.

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Rotsztain, Jeremy, and Alice Rotsztain. "Walking a Turtle." In SIGGRAPH '22: Special Interest Group on Computer Graphics and Interactive Techniques Conference. New York, NY, USA: ACM, 2022. http://dx.doi.org/10.1145/3532834.3536218.

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Wijana, I. Dewa Putu. "Metaphors of Turtle Dove Physical Characteristics in a Javanese Community: A Preliminary Study." In GLOCAL Conference on Asian Linguistic Anthropology 2020. The GLOCAL Unit, SOAS University of London, 2020. http://dx.doi.org/10.47298/cala2020.2-1.

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The Turtle dove (Javanese: perkutut) is one of most popular pets of the Javanese people. Here, they aim to have high quality turtle doves, either in the way that it chirps or in the luck that it may bring. The selection process is quite complex and extensive, one method of which is to carefully observe the physical characteristics of the bird. Accordingly, the community of turtle dove fans and experts has become enriched with a variety of turtle dove registers (words, phrases, idioms, etc.), many of which are metaphorical. This paper intends to study the metaphorical expressions used by the Javanese to compare the body characteristics of turtle doves with various natural and mythical realities surrounding the doves. The study will focus on how Javanese people associate the shapes of turtle dove body parts (the target domain) and natural objects used as a comparison (the source domain) for yielding metaphorical names of the turtle dove, either for obtaining a high quality sound or magical powers that the animal can bring to its owner.
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Markow, Tanya, Eugene Ressler, and Jean Blair. "Catch that speeding turtle." In the 2006 annual ACM SIGAda international conference. New York, New York, USA: ACM Press, 2006. http://dx.doi.org/10.1145/1185642.1185648.

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Reports on the topic "Turtle"

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Aultman, Jody. Turtle Turtle. Ames: Iowa State University, Digital Repository, 2013. http://dx.doi.org/10.31274/itaa_proceedings-180814-552.

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Carey, C. Decay Turtle. Office of Scientific and Technical Information (OSTI), June 2018. http://dx.doi.org/10.2172/1453980.

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Welp, Timothy, Matthew Balazik, Benjamin Emery, Dena Dickerson, and Phillip Bates. Pilot project using tickler chains in lieu of deflectors at Fire Island Inlet to Moriches Inlet, New York, borrow sites. Engineer Research and Development Center (U.S.), March 2024. http://dx.doi.org/10.21079/11681/48336.

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Risk for incidental take of sea turtles and sturgeon exists during hopper dredging operations throughout turtle and sturgeon habitats. Since 1992, draghead deflectors have been the main engineering tool used to minimize incidental hopper dredging takes of sea turtles and are also thought to reduce the chance of sturgeon impingement or entrainment. Although reduced, turtle takes still happen annually, and the draghead deflectors reduce dredging productivity, increase fuel usage, and increase costs of operations. As such, there remains a need to research alternative turtle avoidance measures. The non-US dredging industry has used various versions of an engineering control called tickler chains (TC) in lieu of deflectors. If effective, TC could lower dredging costs and increase production in comparison to deflectors. This technical report describes a pilot study where TC were used in lieu of deflectors at Fire Island Inlet, New Y0rk. To the authors’ knowledge, this is the first time since the early 1990s that hopper-dredging has occurred without draghead deflectors along the east coast. No takes were recorded during the pilot study; however, no research was done to determine if sea turtles or sturgeon interacted with the TC. Recommendations for future TC research are provided in this technical report.
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Pugh, Rebecca S., and Paul R. Becker. Sea turtle contaminants:. Gaithersburg, MD: National Institute of Standards and Technology, 2001. http://dx.doi.org/10.6028/nist.ir.6700.

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McDonough, M. R., T. W. Grover, V. J. McNicoll, E. M. Schetselaar, M. A. Cooley, N. M. Robinson, J A Van Ham, and J. Bednarski. Geology, Turtle Lake, Alberta. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2000. http://dx.doi.org/10.4095/211658.

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Dickerson, Dena D., Kevin J. Reine, and Kim L. Herrman. Sensitive Turtle Habitats Potentially Impacted. Fort Belvoir, VA: Defense Technical Information Center, April 1999. http://dx.doi.org/10.21236/ada363549.

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Gormley, M., and S. O'Day. An Updated AP2 Beamline TURTLE Model. Office of Scientific and Technical Information (OSTI), August 1991. http://dx.doi.org/10.2172/983972.

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Ketten, Darlene R., and Soraya M. Bartol. Functional Measures of Sea Turtle Hearing. Fort Belvoir, VA: Defense Technical Information Center, September 2005. http://dx.doi.org/10.21236/ada446809.

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Mattie Jean Whitesell, Mattie Jean Whitesell. What impacts loggerhead sea turtle hatch success? Experiment, October 2017. http://dx.doi.org/10.18258/10044.

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Tabitha Hootman, Tabitha Hootman. Why did the turtle cross the springs? Experiment, June 2018. http://dx.doi.org/10.18258/11410.

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