The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform
Brent R Patterson - One of the best experts on this subject based on the ideXlab platform.
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Moose (Alces alces) predation by eastern coyotes (Canis latrans) and eastern coyote × eastern wolf (Canis latrans × Canis lycaon) hybrids
Canadian Journal of Zoology, 2013Co-Authors: John F Benson, Brent R PattersonAbstract:It has been widely assumed that coyotes (Canis latrans Say, 1823) are incapable of killing adult moose (Alces alces (L., 1758)) and previous studies of coyote predation support this assumption. However, eastern coyotes and eastern coyote × eastern wolf (Canis lycaon Schreber, 1775) are larger than western coyotes and appear to rely on larger prey in some areas. We used a combination of GPS telemetry, genetic analysis, and field investigation to test the hypothesis that eastern coyotes and coyote × wolf hybrids are capable of preying on adult moose in central Ontario. Our hypothesis was supported, as we documented four definitive cases of eastern coyotes and (or) eastern coyote × eastern wolf hybrids killing moose ≥1.5 years old. Predation by coyotes and coyote × wolf hybrids probably does not represent a threat to moose population viability in central Ontario, but our results suggest that researchers and managers in other areas with declining moose populations that are sympatric with eastern coyotes and (or) coyote × wolf hybrids should consider coyote predation as a potential source of mortality.
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moose alces alces predation by eastern coyotes Canis latrans and eastern coyote eastern wolf Canis latrans Canis lycaon hybrids
Canadian Journal of Zoology, 2013Co-Authors: John F Benson, Brent R PattersonAbstract:It has been widely assumed that coyotes (Canis latrans Say, 1823) are incapable of killing adult moose (Alces alces (L., 1758)) and previous studies of coyote predation support this assumption. However, eastern coyotes and eastern coyote × eastern wolf (Canis lycaon Schreber, 1775) are larger than western coyotes and appear to rely on larger prey in some areas. We used a combination of GPS telemetry, genetic analysis, and field investigation to test the hypothesis that eastern coyotes and coyote × wolf hybrids are capable of preying on adult moose in central Ontario. Our hypothesis was supported, as we documented four definitive cases of eastern coyotes and (or) eastern coyote × eastern wolf hybrids killing moose ≥1.5 years old. Predation by coyotes and coyote × wolf hybrids probably does not represent a threat to moose population viability in central Ontario, but our results suggest that researchers and managers in other areas with declining moose populations that are sympatric with eastern coyotes and (or) coyote × wolf hybrids should consider coyote predation as a potential source of mortality.
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genetic and morphological differentiation of wolves Canis lupus and coyotes Canis latrans in northeastern ontario
Canadian Journal of Zoology, 2012Co-Authors: Tyler Wheeldon, Brent R PattersonAbstract:Gray wolves (Canis lupus L., 1758), eastern wolves (Canis lycaon Schreber, 1775), and coyotes (Canis latrans Say, 1823) are presently managed as a single biological population in primary wolf range...
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Evidence for the Use of Vocalization to Coordinate the Killing of a White-Tailed Deer, Odocoileus virginianus , by Coyotes, Canis latrans
Canadian Field-Naturalist, 2004Co-Authors: Erich M. Muntz, Brent R PattersonAbstract:Among the social canids, howling is largely accepted as playing a role in territory maintenance. However, its role in communication within packs, such as announcing departures from den and rendezvous sites and coordinating reunions or movements, remains largely speculative. We report an observation where a radio-collared adult male Coyote ( Canis latrans ) and his mate seemed to summon two other Coyotes (presumed to be their offspring) from ~700 m away to join in the successful pursuit of an adult male White-tailed Deer ( Odocoileus virginianus ). Our observation suggests that Coyotes can use vocalization as an effective means of coordinating social activities such as the hunting of large prey.
Debra L Miller - One of the best experts on this subject based on the ideXlab platform.
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parasitology virology and serology of free ranging coyotes Canis latrans from central georgia usa
Journal of Wildlife Diseases, 2014Co-Authors: Michelle Gates, Debra L Miller, Karl V Miller, Richard W Gerhold, Rebecca P Wilkes, William D Gulsby, Lauren P Maestas, Alexa C RosypalAbstract:Abstract We examined 31 free-ranging coyotes (Canis latrans) from central Georgia, USA, for select parasites and viral agents. Sixteen coyotes had adult heartworms (Dirofilaria immitis). Serum samples from 27 animals revealed antibodies against canine parvovirus (100%), canine distemper virus (48%), canine adenovirus (37%), and Trypanosoma cruzi (7%); none were detected against Leishmania spp. Twenty-two of 24 (92%) coyotes were positive for Toxoplasma gondii. Real-time PCR of feces revealed 32% of coyotes were shedding canine parvovirus, and sequencing revealed type 2b and 2c. Because coyotes could be a spillover host of domestic dog (Canis lupus familiaris) pathogens, studies of the transmission of pathogens between coyotes and domestic dogs are warranted.
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hematology parasitology and serology of free ranging coyotes Canis latrans from south carolina
Journal of Wildlife Diseases, 2009Co-Authors: Debra L Miller, Joshua Schrecengost, John C Kilgo, Karl V Miller, Anita Merrill, Charles A BaldwinAbstract:Blood and feces were collected from 34 adult (19 males, 15 females) and seven juvenile (three males, one female, three not reported) free-ranging coyotes (Canis latrans) on the US Department of Energy’s Savannah River Site (South Carolina, USA). Significant (P<0.05) hematologic differences by sex were noted for red blood cell counts, hemoglobin, and hematocrit. Biochemical differences by sex occurred only for albumen (P<0.05). Twenty-one adults were antibody positive for at least one of four viruses: canine adenovirus type 1 (CAV-1; 68%), West Nile virus (WNV; 60%), Eastern equine encephalitis virus (EEEV; 38%), and Canine distemper virus (CDV; 15%). Of the seven Leptospira serovars tested for, seven (25%) of 28 adults were positive for one or more of five serovars: Pomona, Grippotyphosa, Icterohaemorrhagiae, Bratislava, and Autumnalis. Three (43%) of seven juveniles had seropositivity for a virus, one each for CDV, CAV-1, and WNV. No juveniles were seropositive for EEEV or any of the seven Leptospira ser...
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ruptured aortic aneurysm in a coyote Canis latrans from south carolina
Journal of Zoo and Wildlife Medicine, 2007Co-Authors: Debra L Miller, Joshua Schrecengost, John C Kilgo, Karl V MillerAbstract:Abstract A radio-collared adult female coyote (Canis latrans) from South Carolina was found dead with no apparent signs of trauma or struggle. Necropsy revealed a ruptured aortic aneurysm within the thoracic cavity as well as severe heartworm infection, with parasites present in the caudal vena cava. Histologically, inflammatory cell infiltrates were frequent in the aneurysm and consisted of eosinophils, neutrophils, lymphocytes, plasma cells, and macrophages. Bacteria, fungi, and parasites were not found in the aneurysm. Death was due to exsanguination. This represents a first report of an aneurysm in a coyote.
John F Benson - One of the best experts on this subject based on the ideXlab platform.
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moose alces alces predation by eastern coyotes Canis latrans and eastern coyote eastern wolf Canis latrans Canis lycaon hybrids
Canadian Journal of Zoology, 2013Co-Authors: John F Benson, Brent R PattersonAbstract:It has been widely assumed that coyotes (Canis latrans Say, 1823) are incapable of killing adult moose (Alces alces (L., 1758)) and previous studies of coyote predation support this assumption. However, eastern coyotes and eastern coyote × eastern wolf (Canis lycaon Schreber, 1775) are larger than western coyotes and appear to rely on larger prey in some areas. We used a combination of GPS telemetry, genetic analysis, and field investigation to test the hypothesis that eastern coyotes and coyote × wolf hybrids are capable of preying on adult moose in central Ontario. Our hypothesis was supported, as we documented four definitive cases of eastern coyotes and (or) eastern coyote × eastern wolf hybrids killing moose ≥1.5 years old. Predation by coyotes and coyote × wolf hybrids probably does not represent a threat to moose population viability in central Ontario, but our results suggest that researchers and managers in other areas with declining moose populations that are sympatric with eastern coyotes and (or) coyote × wolf hybrids should consider coyote predation as a potential source of mortality.
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Moose (Alces alces) predation by eastern coyotes (Canis latrans) and eastern coyote × eastern wolf (Canis latrans × Canis lycaon) hybrids
Canadian Journal of Zoology, 2013Co-Authors: John F Benson, Brent R PattersonAbstract:It has been widely assumed that coyotes (Canis latrans Say, 1823) are incapable of killing adult moose (Alces alces (L., 1758)) and previous studies of coyote predation support this assumption. However, eastern coyotes and eastern coyote × eastern wolf (Canis lycaon Schreber, 1775) are larger than western coyotes and appear to rely on larger prey in some areas. We used a combination of GPS telemetry, genetic analysis, and field investigation to test the hypothesis that eastern coyotes and coyote × wolf hybrids are capable of preying on adult moose in central Ontario. Our hypothesis was supported, as we documented four definitive cases of eastern coyotes and (or) eastern coyote × eastern wolf hybrids killing moose ≥1.5 years old. Predation by coyotes and coyote × wolf hybrids probably does not represent a threat to moose population viability in central Ontario, but our results suggest that researchers and managers in other areas with declining moose populations that are sympatric with eastern coyotes and (or) coyote × wolf hybrids should consider coyote predation as a potential source of mortality.
Jeffrey S. Green - One of the best experts on this subject based on the ideXlab platform.
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REPRODUCTION IN CAPTIVE WILD-CAUGHT COYOTES (Canis latrans)
Journal of Mammalogy, 2002Co-Authors: Jeffrey S. Green, Frederick F. Knowlton, William C. PittAbstract:Abstract We assessed reproductive patterns of coyotes (Canis latrans) from a 12-year data set involving 24 pairs of captive animals acquired from Latah County, Idaho. None of the females had placental scars (fetal implantation sites) at 1 year of age, but over 80% had placental scars by 2 years of age. The fraction with placental scars remained at 80–90% through age 9 years and then declined to
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reproduction in captive wild caught coyotes Canis latrans
Journal of Mammalogy, 2002Co-Authors: Jeffrey S. Green, Frederick F. Knowlton, William C. PittAbstract:Abstract We assessed reproductive patterns of coyotes (Canis latrans) from a 12-year data set involving 24 pairs of captive animals acquired from Latah County, Idaho. None of the females had placental scars (fetal implantation sites) at 1 year of age, but over 80% had placental scars by 2 years of age. The fraction with placental scars remained at 80–90% through age 9 years and then declined to <40% by age 12 years. Similarly, mean number of placental scars per female rose rapidly through 2–3 years of age, remained stable until age 8 years, and then progressively declined to a very low level by age 12 years. Numbers of pups observed were typically smaller than numbers of placental scars, with fewer placental scars represented by pups among younger females than older females.
William C. Pitt - One of the best experts on this subject based on the ideXlab platform.
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REPRODUCTION IN CAPTIVE WILD-CAUGHT COYOTES (Canis latrans)
Journal of Mammalogy, 2002Co-Authors: Jeffrey S. Green, Frederick F. Knowlton, William C. PittAbstract:Abstract We assessed reproductive patterns of coyotes (Canis latrans) from a 12-year data set involving 24 pairs of captive animals acquired from Latah County, Idaho. None of the females had placental scars (fetal implantation sites) at 1 year of age, but over 80% had placental scars by 2 years of age. The fraction with placental scars remained at 80–90% through age 9 years and then declined to
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reproduction in captive wild caught coyotes Canis latrans
Journal of Mammalogy, 2002Co-Authors: Jeffrey S. Green, Frederick F. Knowlton, William C. PittAbstract:Abstract We assessed reproductive patterns of coyotes (Canis latrans) from a 12-year data set involving 24 pairs of captive animals acquired from Latah County, Idaho. None of the females had placental scars (fetal implantation sites) at 1 year of age, but over 80% had placental scars by 2 years of age. The fraction with placental scars remained at 80–90% through age 9 years and then declined to <40% by age 12 years. Similarly, mean number of placental scars per female rose rapidly through 2–3 years of age, remained stable until age 8 years, and then progressively declined to a very low level by age 12 years. Numbers of pups observed were typically smaller than numbers of placental scars, with fewer placental scars represented by pups among younger females than older females.
