Invertebrate infestation on eggs and hatchlings of the loggerhead turtle, Caretta caretta, in Dalaman, Turkey

Katılmış, Yusuf; Urhan, Raşit; Kaska, Yakup; Başkale, Eyup

doi:10.1007/s10531-004-1235-5

Cited by 10 publications

(8 citation statements)

References 13 publications

(18 reference statements)

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“…Another problem recorded from certain loggerhead nesting beaches is invertebrate infestation of eggs (Broderick & Hancock 1997, McGowan et al 2001, Türkozan et al 2003, Katılmış et al 2006, Andrews et al 2016, Aymak et al 2017. Finally, planting of tamarisk trees Tamarix spp.…”

Section: Non-human Impactmentioning

confidence: 99%

Mediterranean sea turtles: current knowledge and priorities for conservation and research

Casale¹,

Broderick²,

Camiñas³

et al. 2018

Endang. Species. Res.

176

227

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The available information regarding the 2 sea turtle species breeding in the Mediterranean (loggerhead turtle Caretta caretta and green turtle Chelonia mydas) is reviewed, including biometrics and morphology, identification of breeding and foraging areas, ecology and behaviour, abundance and trends, population structure and dynamics, anthropogenic threats and conservation measures. Although a large body of knowledge has been generated, research efforts have been inconsistently allocated across geographic areas, species and topics. Significant gaps still exist, ranging from the most fundamental aspects, such as the distribution of major nesting sites and the total number of clutches laid annually in the region, to more specific topics like age at maturity, survival rates and behavioural ecology, especially for certain areas (e.g. southeastern Mediterranean). These gaps are particularly marked for the green turtle. The recent positive trends of nest counts at some nesting sites may be the result of the cessation of past exploitation and decades of conservation measures on land, both in the form of national regulations and of continued active protection of clutches. Therefore, the current status should be considered as dependent on such ongoing conservation efforts. Mitigation of incidental catch in fisheries, the main anthropogenic threat at sea, is still in its infancy. From the analysis of the present status a comprehensive list of re search and conservation priorities is proposed.

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Section: Non-human Impactmentioning

confidence: 99%

Mediterranean sea turtles: current knowledge and priorities for conservation and research

Casale¹,

Broderick²,

Camiñas³

et al. 2018

Endang. Species. Res.

176

227

View full text Add to dashboard Cite

show abstract

“…(Tenebrionidae) and Muscidae larvae were found in loggerhead turtle nests on Dalaman beach (Katılmış et al, 2006). The depth of the egg chamber was found to be the most significant factor for Dipteran infestation on loggerhead turtle eggs (McGowan et al, 2001b;Katılmış and Urhan, 2007a).…”

mentioning

confidence: 96%

“…However, the results of this study were confounded in time because of the excessive time span of 5-9 days. It remains uncertain whether fly larvae (Özdemir et al, 2004), dipterans, and coleopteran larvae (Katılmış et al, 2006) have a detrimental effect on sea turtle populations. Therefore, in this study the role of these invertebrates in the sea turtle nests was not determined and no effort was made to minimize the effect of insect infestation on sea turtle nests on Alata beach.…”

mentioning

confidence: 99%

“…Researchers recorded some invertebrate infestation in loggerhead turtle nests in Turkey. Nematoda, Enchytraeidae (Oligochaeta), Oniscidae (Isopoda), Mesostigmat (Acari), Cryptostigmata (Acari), Araneidae (Arenea), Sphecidae (Hymenoptera), Elateridae larvae (Coleoptera), Scarabeidae larvae (Coleoptera), Muscidae larvae (Diptera), Myrmeleontidae larvae (Neuroptera), and Tenebrionidae larvae (Coleoptera) individuals were recorded infesting loggerhead turtle nests on Fethiye, Kızılot, Dalaman, and Dalyan İztuzu beaches in Turkey (Türkozan and Baran, 1996;Türkozan, 2000;Baran et al, 2001;Özdemir et al, 2004Katılmış et al, 2006;Urhan et al, 2010). In Northern Cyprus, Broderick and Hancock (1997) reported that nests of both species of turtles were infested by Sarcophagidae (Diptera) and Phoridae (Diptera) was reared from a C. caretta nest.…”

mentioning

confidence: 99%

“…Researchers recorded the ratio of infested loggerhead turtle nests in Turkey. On Fethiye beach, the rate of (Katılmış, 2004;Katılmış et al, 2006). On Dalyan İztuzu beach, Urhan et al (2010) stated that 18.3% of nests were infested by Muscidae larvae and 13.3% by Pimelia larvae.…”

mentioning

confidence: 99%

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Invertebrate infestation in green turtle (Chelonia mydas (Linnaeus, 1758)) and loggerhead turtle (Caretta caretta (Linnaeus, 1758)) nests on Alata Beach, Mersin, Turkey

Aymak¹,

Ergene²,

Katılmış³

et al. 2017

Turk J Zool

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Invertebrate infestation in green turtle (Chelonia mydas(Among the marine turtle species around the world, Chelonia mydas and Caretta caretta nest in the Mediterranean (Baran and Kasparek, 1989;Groombridge, 1990;Türkozan et al., 2003;Canbolat, 2004;Türkozan and Kaska, 2010). Alata beach in Mersin was added to the nesting areas of these two turtles in the eastern Mediterranean (Oruç et al., 2003;Aymak, 2004;Aymak et al., 2005;Ergene et al., 2006Ergene et al., , 2009Türkozan and Kaska, 2010). Consequently, 21 important nesting areas have been identified in studies conducted on the beaches of Turkey (Türkozan and Kaska, 2010).The presence of larvae in marine turtle nests has been previously reported and they have been identified as belonging to the Sarcophagidae (Lopes, 1982;Andrade et al., 1992;Broderick and Hancock, 1997;McGowan et al., 2001a;Hall, 2005;Phillott, 2005) and the Phoridae (Fowler, 1979;Bjorndal et al., 1985;Broderick and Hancock, 1997;McGowan et al., 2001a). Larvae of the dipteran family Phoridae (specifically Megaselia scalaris) have been determined in the nests of the green turtle (Fowler, 1979) and hawksbill turtle (Eretmochelys imbricata) (Bjorndal et al., 1985) in studies performed in Costa Rica. On the Pacific coast of Mexico, Eumacronychia sternalis (Sarcophagidae, Diptera) was determined in green turtle eggs (Lopes, 1982). In nests of the leatherback turtle (Dermochelys coriacea) and olive ridley turtle (Lepidochelys olivacea) in Mexico, Sarcophagids of the genera Phorosinella and Eusenotainia were reported (Andrade et al., 1992). In Australia, two species of Platystomatidae from green and loggerhead turtle nests were recorded (Hall and Parmenter, 2006).In the Mediterranean, Türkozan and Baran (1996) are the first researchers to report the presence of coleopteran larvae infestation (infesting eggs of the loggerhead turtle). Broderick and Hancock (1997) reported different kinds of insect groups infesting marine turtle eggs in Northern Cyprus. In another study in Northern Cyprus, eleven dipteran species were recorded in turtle nests. Among these, Sarcotachina aegyptica was dominant (McGowan et al., 2001a). Similar types of infestations were also recorded on Kızılot (Türkozan, 2000) and Fethiye beaches (Baran et al., 2001). Özdemir et al. (2004) investigated the physical nest parameters of loggerhead turtle nests, e.g., grain size and distance to low vegetation, and they reported that both factors were negatively correlated with the presence of invertebrates and also smaller nest diameters attracted more invertebrates on Fethiye beach in 2001. Özdemir et al. (2006) researched the impact of the invertebrate group on hatchlings and eggs of loggerhead turtle on Fethiye beach between the 1999 and 2003 nesting seasons and found that Tenebrionidae larvae caused destruction of nests and caused greater damage to eggs.Abstract: Invertebrate infestation in sea turtle nests (Caretta caretta and Chelonia mydas) was recorded for the first time for Alata beach, Mersin, Turkey. A total of 121 green and 32 ...

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Sea Turtle Eggs and Hatchlings are a Seasonally Important Food Source for the Generalist Feeding Golden Ghost Crab (Ocypode convexa)

Avenant,

Fossette,

Whiting

et al. 2023

Estuaries and Coasts

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Invertebrate infestation on eggs and hatchlings of the loggerhead turtle, Caretta caretta, in Dalaman, Turkey

Cited by 10 publications

References 13 publications

Mediterranean sea turtles: current knowledge and priorities for conservation and research

Mediterranean sea turtles: current knowledge and priorities for conservation and research

Invertebrate infestation in green turtle (Chelonia mydas (Linnaeus, 1758)) and loggerhead turtle (Caretta caretta (Linnaeus, 1758)) nests on Alata Beach, Mersin, Turkey

Sea Turtle Eggs and Hatchlings are a Seasonally Important Food Source for the Generalist Feeding Golden Ghost Crab (Ocypode convexa)

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