Shape Change and Variation in the Cranial Morphology of Wild Canids (Canis lupus, Canis latrans, Canis rufus ) Compared to Domestic Dogs (Canis familiaris ) Using Geometric Morphometrics

2012 ◽  
Vol 24 (1) ◽  
pp. 42-50 ◽  
Author(s):  
E. Schmitt ◽  
S. Wallace
Keyword(s):  
Geometric Morphometrics ◽  
Canis Lupus ◽  
Canis Latrans ◽  
Shape Change ◽  
Canis Familiaris ◽  
Domestic Dogs ◽  
Cranial Morphology ◽  
Canis Rufus ◽  
Wild Canids

scholarly journals Molecular Systematics of Mesocestoides spp. (Cestoda: Mesocestoididae) from Domestic Dogs (Canis familiaris) and Coyotes (Canis latrans)

2000 ◽  
Vol 86 (2) ◽  
pp. 350 ◽  
Author(s):  
Paul R. Crosbie ◽  
Steven A. Nadler ◽  
Edward G. Platzer ◽  
Cynthia Kerner ◽  
J. Mariaux ◽  
...  
Keyword(s):  
Molecular Systematics ◽  
Canis Latrans ◽  
Canis Familiaris ◽  
Domestic Dogs

The New Guinea singing dog: its status and scientific importance

2007 ◽  
Vol 29 (1) ◽  
pp. 47 ◽  
Author(s):  
J, Koler-Matznick ◽  
B.C. Yates ◽  
S. Bulmer ◽  
I..L. Jr. Brisbin
Keyword(s):  
Cultural Context ◽  
Canis Familiaris ◽  
New Guinea ◽  
Domestic Dogs ◽  
Scientific Merit ◽  
Wild Canids ◽  
Local Residents

Time is running out for the opportunity to study the New Guinea singing dog (Canis hallstromi Troughton 1957) to determine if they are a unique taxon. These wild canids are being threatened with hybridization from increasing numbers of imported domestic dogs (Canis familiaris). The controversies over their taxonomy and its status in New Guinea exist because they live in areas infrequently visited even by local residents. Thus, evidence concerning its origins, behaviour, anatomy, and phylogenetics is inadequate. The morphological, physiological, and DNA data we currently have available are from the few remaining captive representatives held in zoos and private facilities. The singing dog may be an important evolutionary link to humankind's most ancient domesticated mammal, C. familiaris, and to the Australian dingo (Canis dingo). We refute the allegation that the singing dog originated as a feral modern C. familiaris, or as hybrids of C. dingo with C. familiaris, by recounting their known history within the cultural context of New Guinea. We point out some of their distinctive characteristics, including their unique estrus cycles, and outline their potential scientific merit. We conclude by offering an alternative taxonomic hypothesis.

scholarly journals A comparative test of inequity aversion in domestic dogs (Canis familiaris) and dingoes (Canis dingo)

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0255885
Author(s):  
Katherine McAuliffe
Keyword(s):  
Canis Lupus ◽  
Canis Familiaris ◽  
Empirical Work ◽  
Inequity Aversion ◽  
Domestic Dogs ◽  
Resource Distributions ◽  
And Control ◽  
Canid Species ◽  
Nonhuman Species ◽  
A New Species

Despite much recent empirical work on inequity aversion in nonhuman species, many questions remain about its distribution across taxa and the factors that shape its evolution and expression. Past work suggests that domestic dogs (Canis familiaris) and wolves (Canis lupus) are averse to inequitable resource distributions in contexts that call upon some degree of training such as ‘give paw’ and ‘buzzer press’ tasks. However, it is unclear whether inequity aversion appears in other canid species and in other experimental contexts. Using a novel inequity aversion task that does not require specific training, this study helps address these gaps by investigating inequity aversion in domestic dogs and a closely related but non-domesticated canid, the dingo (Canis dingo). Subjects were presented with equal and unequal reward distributions and given the opportunity to approach or refuse to approach allocations. Measures of interest were (1) subjects’ refusal to approach when getting no food; (2) approach latency; and (3) social referencing. None of these measures differed systematically across the inequity condition and control conditions in either dogs or dingoes. These findings add to the growing literature on inequity aversion in canids, providing data from a new species and a new experimental context. Additionally, they raise questions about the experimental features that must be in place for inequity aversion to appear in canids.

α1-Antitrypsin polymorphism and systematics of eastern North American wolves

2002 ◽  
Vol 80 (5) ◽  
pp. 961-963 ◽  
Author(s):  
L David Mech ◽  
Nicholas E Federoff
Keyword(s):  
North American ◽  
Canis Lupus ◽  
Canis Latrans ◽  
Western Canada ◽  
Gray Wolf ◽  
Canis Rufus ◽  
Red Wolf ◽  
Relationship Of ◽  
The Relationship ◽  
Red Wolves

We used data on the polymorphic status of α1-antitrypsin (α1AT) to study the relationship of Minnesota wolves to the gray wolf (Canis lupus), which was thought to have evolved in Eurasia, and to red wolves (Canis rufus) and coyotes (Canis latrans), which putatively evolved in North America. Recent evidence had indicated that Minnesota wolves might be more closely related to red wolves and coyotes. Samples from wild-caught Minnesota wolves and from captive wolves, at least some of which originated in Alaska and western Canada, were similarly polymorphic for α1AT, whereas coyote and red wolf samples were all monomorphic. Our findings, in conjunction with earlier results, are consistent with the Minnesota wolf being a gray wolf of Eurasian origin or possibly a hybrid between the gray wolf of Eurasian origin and the proposed North American wolf.

MOLECULAR SYSTEMATICS OFMESOCESTOIDESSPP. (CESTODA: MESOCESTOIDIDAE) FROM DOMESTIC DOGS (CANIS FAMILIARIS) AND COYOTES (CANIS LATRANS)

2000 ◽  
Vol 86 (2) ◽  
pp. 350-357 ◽  
Author(s):  
Paul R. Crosbie ◽  
Steven A. Nadler ◽  
Edward G. Platzer ◽  
Cynthia Kerner ◽  
J. Mariaux ◽  
...  
Keyword(s):  
Molecular Systematics ◽  
Canis Latrans ◽  
Canis Familiaris ◽  
Domestic Dogs
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