| seroprevalences of antibodies to neospora caninum and toxoplasma gondii in zoo animals. | neospora caninum is an apicomplexan parasite that causes neuromuscular disease in dogs and abortions in cattle. little is known about the prevalence of antibodies to this parasite in zoo animals. sera from 556 animals, from 13 czech and slovak zoos were tested for antibodies to n. caninum and toxoplasma gondii by indirect fluorescent antibody test. antibodies to n. caninum were found in 31 of 556 zoo animals (5.6%), representing 18 of 114 species tested: eurasian wolf (canis lupus lupus), maned ... | 2006 | 16387445 |
| extensive interbreeding occurred among multiple matriarchal ancestors during the domestication of dogs: evidence from inter- and intraspecies polymorphisms in the d-loop region of mitochondrial dna between dogs and wolves. | to test the hypothesis that the domestic dogs are derived from several different ancestral gray wolf populations, we compared the sequence of the displacement (d)-loop region of the mitochondrial dna (mtdna) from 24 breeds of domestic dog (34 individual dogs) and 3 subspecies of gray wolf (canis lupus lupus, c.l. pallipes and c.l. chanco; 19 individuals). the intraspecific sequence variations within domestic dogs (0.00-3.19%) and within wolves (0.00-2.88%) were comparable to the interspecific va ... | 1997 | 9418263 |
| the wolf reference genome sequence (canis lupus lupus) and its implications for canis spp. population genomics. | an increasing number of studies are addressing the evolutionary genomics of dog domestication, principally through resequencing dog, wolf and related canid genomes. there is, however, only one de novo assembled canid genome currently available against which to map such data - that of a boxer dog (canis lupus familiaris). we generated the first de novo wolf genome (canis lupus lupus) as an additional choice of reference, and explored what implications may arise when previously published dog and w ... | 2017 | 28662691 |
| assessment of attachment behaviour to human caregivers in wolf pups (canis lupus lupus). | previous research suggested that 16-week old dog pups, but not wolf pups, show attachment behaviour to a human caregiver. attachment to a caregiver in dog pups has been demonstrated by differential responding to a caregiver compared to a stranger in the ainsworth strange situation test. we show here that 3-7 week old wolf pups also show attachment-like behaviour to a human caregiver as measured by preferential proximity seeking, preferential contact, and preferential greeting to a human caregive ... | 2015 | 25447510 |
| being a victim or an aggressor: different functions of triadic post-conflict interactions in wolves (canis lupus lupus). | animals adopt different behavioral strategies to cope with the conflict of interests coming from the competition over limited resources. starting from the study on chimpanzees, post-conflict third-party affiliation (the affiliative contact provided by a third-party toward the victim--vta--or the aggressor--ata) was investigated mainly in primates. later, this post-conflict mechanism has been demonstrated also in other mammals, such as wallabies, horses, dolphins, domestic dogs, and wolves. here, ... | 2015 | 25894742 |
| worldwide patterns of genomic variation and admixture in gray wolves. | the gray wolf (canis lupus) is a widely distributed top predator and ancestor of the domestic dog. to address questions about wolf relationships to each other and dogs, we assembled and analyzed a data set of 34 canine genomes. the divergence between new and old world wolves is the earliest branching event and is followed by the divergence of old world wolves and dogs, confirming that the dog was domesticated in the old world. however, no single wolf population is more closely related to dogs, s ... | 2016 | 26680994 |
| pathology of gray wolf shoulders: lessons in species and aging. | we examined scapula glenoids (n = 14) and proximal articular humeri (n = 14) of seven gray wolves that were maintained in a sanctuary park setting. immediately after death, observations were made visually in situ and by radiography. further observations were made in a museum laboratory setting, prior to and following clearing of soft tissues. selected dry bone specimens were evaluated using computed tomography. significant cartilage erosion and osteoarthropathy were identified in all shoulder jo ... | 2016 | 27415465 |
| pulmonary neuroendocrine tumor in a female wolf (canis lupus lupus). | a 17-year-old female wolf (canis lupus lupus) had a right lung mass that was adhered to the thoracic cavity. histopathological examination revealed that the mass consisted of sheets, cord or ribbon-like structures of monotonous, small, cuboidal cells with round, oval or short-spindle nuclei and scant clear cytoplasm, demarcated by a fine fibrovascular stroma. focal necrosis, congestion and thrombi were observed. immunohistochemically, the tumor cells diffusely expressed cytokeratin ae1/ae3, and ... | 2017 | 28190820 |
| case report of dirofilariasis in grey wolf in serbia. | this paper describes a case of dirofilariasis in a two-year old, female grey wolf (canis lupus lupus). the autopsy revealed the presence of 42 adult forms of dirofilaria immitis in the pulmonary artery, right ventricle and right atrium, varying in length from 9.5 to 30 cm. this is, to the best of our knowledge, the second report of d. immitis in grey wolves in serbia. our finding confirms that the wolf, as a subspecies distinct from the dog, should also be considered as a very suitable definitiv ... | 2014 | 26204038 |
| dogs, cats, and kin: a molecular species-level phylogeny of carnivora. | phylogenies underpin comparative biology as high-utility tools to test evolutionary and biogeographic hypotheses, inform on conservation strategies, and reveal the age and evolutionary histories of traits and lineages. as tools, most powerful are those phylogenies that contain all, or nearly all, of the taxa of a given group. despite their obvious utility, such phylogenies, other than summary 'supertrees', are currently lacking for most mammalian orders, including the order carnivora. carnivora ... | 2010 | 19900567 |
| cross-fostering in gray wolves (canis lupus lupus). | cross-fostering in canids, with captive-bred pups introduced into endangered wild populations, might aid conservation efforts by increasing genetic diversity and lowering the risk of inbreeding depression. the gray wolf (canis lupus lupus) population in scandinavia suffers from severe inbreeding due to a narrow genetic base and geographical isolation. this study aimed at evaluating the method to cross-foster wolf pups from zoo-born to zoo-born litters. the following was assessed: female initial ... | 2015 | 25773058 |
| surveillance and management of echinococcus multilocularis in a wildlife park. | the fox tapeworm echinococcus multilocularis is the causative agent of alveolar echinococcosis, a severe zoonotic disease that may be fatal if untreated. a broad spectrum of mammalian species may be accidentally infected even in captivity. in april 2011, liver lesions due to e. multilocularis were observed during the necropsy of a captive-born nutria (myocastor coypus) in a french wildlife park, leading to initiation of a study to survey the parasite's presence in the park. a comparable environm ... | 2016 | 26780546 |