نتایج جستجو برای: canis lupus
تعداد نتایج: 48725 فیلتر نتایج به سال:
We describe significant brain, craniofacial, and dental lesions in a free-ranging wolf (Canis lupus) involved in a human attack. On postmortem examination, the wolf presented asymmetric atrophy and bone remodeling affecting the mandible, incisive, maxilla, lacrimal, palatine, frontal, and ethmoid bones. There was an asymmetrical skeletal malocclusion and dental abnormalities including rotated, ...
Domestic sheep (Ovis aries) are an attractant to carnivores; however, often accompanied by humans and livestock guardian dogs (LGDs; Canis familiaris), which defend from depredation. Sheep also compete directly with wildlife for grazing resources. Although practiced millennia in much of the world outside North America, effect that transhumance has on is poorly understood. To test bands (sheep, ...
Infection risk is assumed to increase with social group size, and thus be a cost of group living. We assess infection risk and costs with respect to group size using data from an epidemic of sarcoptic mange (Sarcoptes scabiei) among grey wolves (Canis lupus). We demonstrate that group size does not predict infection risk and that individual costs of infection, in terms of reduced survival, can ...
مدیریت غیر اصولی زباله های خانگی و پسماندهای واحدهای تولیدی به ویژه مرغداری ها و دامپروری ها در روستاها و حاشیه شهرها از مهمترین عوامل جذب حیوانات وحشی به این مناطق معرفی شده است. این مشکل اغلب به شرطی شدن غذایی تعدادی از گونههای حیات وحش میانجامد و معمولا سبب تغییر عادات غذایی و کاهش ترس در حیواناتی میشود که توانایی بالا به سازگاری با تغییرات زیستگاهی و غذایی دارند. از آنجا که یکی از فرضیه...
سگ اهلی یکی از اعضای خانواده سگسانان است که در حدود چندین هزار سال پیش با کنترل و اهلیسازی گلههای کوچک گرگ به صورت حیوانات اهلی درآمدند. سگهای اهلی دارای تنوع ژنتیکی بالایی هستند و نژادهای بسیاری از سگهای اهلی در دنیا گزارش شده است. در استان همدان نیز مردم بومیبه منظور ایجاد سگهای گله قوی اقدام به دو رگه گیری سگ و گرگ میکنند. در این مطالعه با استفاده از توالییابی ناحیه کنترل ژنوم می...
A GIS multivariate model based on the Mahalanobis distance statistic is proposed to evaluate habitat suitability for the wolf Canis lupus in northern Spain. Results derived from the model show that wolves can potentially thrive in some habitats on the southern and western side of the study area where conflicts with the human population are minimum. However, some other areas that have been recen...
Using real-time PCR, we tested 15 wolf (Canis lupus) feces from the Superior National Forest (SNF), Minnesota, USA, and 191 from Yellowstone National Park (YNP), USA, collected during summer and 13 during winter for canine parvovirus (CPV)-2 DNA. We also tested 20 dog feces for CPV-2 DNA. The PCR assay was 100% sensitive and specific with a minimum detection threshold of 10(4) 50% tissue cultur...
Domestic dogs (Canis lupus familiaris) are one of the most morphologically varied species, exhibiting an enormous variety of sizes and body types. Different breeds also exhibit different behavioural traits, and are perceived by dog trainers and owners as having variable abilities to be trained. There is evidence of a strong genetic component in canine behaviour. However, recent studies suggest ...
Several authors have recently argued that dingoes could be used to help conserve biodiversity in Australia. Fleming et al. (2012) [Australian Mammalogy 34, 119–131] offer the alternative view that restoration of dingo predation is unlikely to help native species, and is more likely to do harm.We think many of the arguments used by Fleming et al. to reach that conclusion are either unsound or be...
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