Some like it cold: the glossiphoniid parasites of the Sicilian endemic pond turtle Emys trinacris (Testudines, Emydidae), an example of ‘parasite inertia’?

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Some like it cold: the glossiphoniid parasites of the Sicilian endemic pond turtle Emys trinacris (Testudines, Emydidae), an example of ‘parasite inertia’?

Federico Marrone [et al.] - Nama Orang;

Nearctic taxa, which jointly colonized Eurasia and the Maghreb during the Miocene. The strict trophic relationships occurring between the glossiphoniid parasite leech Placobdella costata and its host, the emydid Emys orbicularis, make them a prime example of host–parasite cophylogenetic evolution. In the light of the discovery of the Sicilian cryptic endemic species Emys trinacris, which is the sister species to the widespread Palaearctic E. orbicularis, the possible cophylogenetic divergence of the turtle hosts and their leech parasites was investigated. In spite of the deep divergence scored between the two pond turtle species and of their allopatric distribution, their leech parasites proved to be conspecific and indistinguishable based on the implemented molecular marker. This unexpected decoupling might likely be ascribed to the different dispersal abilities of the two taxa and/or to the recent, human-mediated introduction of the leech parasites in Sicily. If this last scenario is confirmed, the long-term effects of the introduced leech parasite on the endemic Sicilian pond turtle Emys trinacris should be carefully monitored. In the frame of this study, representatives of the widely spread predatory leech Helobdella stagnalis were observed on E. trinacris. Molecular analyses of their stomach content allowed to rule out the possibility of the existence of a trophic relationships between these two taxa, in contrast to what was previously suspected, and suggest that H. stagnalis specimens were rather attached to the turtles for non-nutritional reasons.

Key words: Hirudinea – Placobdella costata – Helobdella stagnalis – host–parasite coevolution

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Informasi Detail

Judul Seri: J Zool Syst Evol Res
No. Panggil: -
Penerbit: : Blackwell Verlag GmbH., 2016
Deskripsi Fisik: J Zool Syst Evol Res (2016) 54(1), 60--66
Bahasa: English
ISBN/ISSN: doi: 10.1111/jzs.121
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: -
Subjek: BIOLOGI
Info Detail Spesifik: -
Pernyataan Tanggungjawab: Wati/Agus

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FULL TEXT:Some like it cold: the glossiphoniid parasites of the Sicilian endemic pond turtle Emys trinacris (Testudines, Emydidae), an example of ‘parasite inertia’?

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