رسالة جامعية
Ecology and Phylogeography of the Riparian Habitat Specialist M. daubentonii
| العنوان: | Ecology and Phylogeography of the Riparian Habitat Specialist M. daubentonii |
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| المؤلفون: | Nardone, Valentina |
| سنة النشر: | 2015 |
| المجموعة: | University of Naples Federico II ePrints Repository (FedOA) |
| الوصف: | Riparian ecosystems are known as habitats with high biodiversity levels which perform several ecological functions. The importance of riparian habitats for foraging and commuting of many bats species was observed in different geographic areas. Bats are highly vulnerable to habitat changes, in addition specialist taxa are more sensitive to small-scale environmental alterations. Myotis daubentonii constitutes an interesting model species widespread in Europe as riparian specialist. The objectives of this thesis were to study the effects of an altitudinal gradient on ecology and thermal physiology of M. daubentonii males of a population in Central Italy, for which intra-male spatial segregation was known, and investigate the genetic structure and phylogeography of this species in different river basins of Europe. The first study was carried out comparing habitat productivity, body condition, thermoregulation strategies, use of space and habitat selection between males from two altitude zones. Results show that the more selective and diurnally homoeothermic downstream males, show a better body condition in late spring (possibly as a consequence of higher food availability in that period and/or hibernating in milder climate) but then they lose weight. Upstream males prove more flexible as they forage in a broader range of habitats and make a larger use of daily torpor, strategies that in the long run appear rewarding as unlike downstream males at least they showed no body condition drop over summer. I conclude that the main benefit for downstream males is not energetic but probably reproductive as they may increase fitness by extra-mating. However, a better body condition following hibernation might also imply a higher survival likelihood of downstream males at that time of year. The second study was carried out analyzing the cytocrome b gene (Cyt b) and hypervariable non-coding domains I and II (HVI and HVII), from the control region (D-loop) of the mtDNA of respectively 157 and 123 samples of M. daubentonii from ... |
| نوع الوثيقة: | doctoral or postdoctoral thesis |
| وصف الملف: | text |
| اللغة: | Italian English |
| العلاقة: | http://www.fedoa.unina.it/10143/1/Tesi%20NardoneV.pdfTest; Nardone, Valentina (2015) Ecology and Phylogeography of the Riparian Habitat Specialist M. daubentonii. [Tesi di dottorato] |
| DOI: | 10.6092/UNINA/FEDOA/10143 |
| الإتاحة: | https://doi.org/10.6092/UNINA/FEDOA/10143Test http://www.fedoa.unina.it/10143Test/ http://www.fedoa.unina.it/10143/1/Tesi%20NardoneV.pdfTest |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.1B563CD3 |
| قاعدة البيانات: | BASE |
| DOI: | 10.6092/UNINA/FEDOA/10143 |
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