Consulta: subjectFacets:"Canids"
Registros recuperados: 6
Data/hora: 03/06/2024 18:27:43

Extinction of canid populations by inbreeding depression under stochastic environments in Southwestern Goiás State: a simulation study
Provedor de dados: 74
Autores: Rodrigues,Flávia Melo; Diniz-Filho,José Alexandre Felizola.
A frequently addressed question in conservation biology is what is the chance of survival for a population for a given number of years under certain conditions of habitat loss and human activities. This can be estimated through an integrated analysis of genetic, demographic and landscape processes, which allows the prediction of more realistic and precise models of population persistence. In this study, we modeled extinction in stochastic environments under inbreeding depression for two canid species, the maned wolf (Chrysocyon brachiurus) and the crab-eating fox (Cerdocyon thous), in southwest Goiás State. Genetic parameters were obtained from six microsattelite loci (Short Tandem Repeats - STR), which allowed estimates of inbreeding levels and of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Population persistence; Population viability analysis; Canids; STR markers; Parque Nacional das Emas.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000100021

Feeding ecology of the culpeo in southern Ecuador: wild ungulates being the main prey
Provedor de dados: 16
Autores: Guntiñas, M.; Lozano, J.; Cisneros, R.; Narváez, C.; Armijos, J.
This study details for the first time the food habits of the culpeo or Andean fox (Lycalopex culpaeus) in high areas of the Ecuadorian Andes during a complete annual cycle. Our objective was to identify prey species, calculate their contribution to diet and test for temporal variation. In total, 304 Andean fox scats were collected within the Podocarpus National Park (Loja province, southern Ecuador). By analysing the content of scats 413 prey items were identified and classified into eight prey groups. Subsequently, the frequency of occurrence (FO) for each prey group was calculated per month together with the relative contribution of estimated consumed biomass (CB). In addition, the Shannon-Wiener’s index was calculated as a measurement of monthly diet...
Tipo: Article / Letter to the editor
Palavras-chave: Andes; Canids; Carnivores; Cloud forest; Diet; Paramo; Podocarpus; Trophic diversity.
Ano: 2017
URL: http://www.repository.naturalis.nl/record/637723

Diet of crab-eating fox, Cerdocyon thous (Linnaeus) (Carnivora, Canidae), in a suburban area of southern Brazil
Provedor de dados: 104
Autores: Pedó,Ezequiel; Tomazzoni,Ana C.; Hartz,Sandra M.; Christoff,Alexandre U.
The crab-eating fox, Cerdocyon thous (Linnaeus, 1766), is a small canid with twilight and nocturnal habits from savannas and forests of South America. In this study, we seasonally determined and quantified the diet of C. thous in Lami Biological Reserve, a conservation unit with 179.78ha situated in a suburban area in the municipality of Porto Alegre, southern Brazil. During the year 2000, we collected 80 fecal samples - 20 for each season - in two or three week sampling intervals, along trails inside the Reserve. Samples were dried in an oven for 24h at 60ºC, immersed in 70% alcohol, and prey items were identified using a stereomicroscope. The diet of the crab-eating fox was essentially carnivorous (87.62% composed by vertebrates), with seasonal variation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canids; Food habits; Rio Grande do Sul; Seasonality; South America.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000300005

Cytogenetic and molecular characterization of Speothos venaticus specimens - doi: 10.4025/actascibiolsci.v32i4.6775
Provedor de dados: 3
Autores: Carvalho, Thaís Lima; UNESP - IBB; Curi, Rogério Abdallah; UNESP - FMVZ; Santiloni, Valquíria; UNESP - IBB; Chieregatto, Cleyde Angélica Ferreira da Silva; Sociedade dos Zoológicos do Brasil; Rocha, Guaracy Tadeu; UNESP - IBB; Mota, Lígia Souza Lima Silveira da; UNESP - IBB.
The bush dog (Speothos venaticus) is a South American canid, included in the IBAMA (Brazilian Institute of Environment and Renewable Natural Resources) official list of animals threatened with extinction, in the vulnerable category. As a preservation and conservation strategy, specimens kept in captivity by Brazilian Institutions are monitored by a management plan. In order to characterize and analyze the genetic variability of bush dog specimens, a cytogenetic analysis was carried out, and microsatellite data were also obtained through the use of 15 primers, originally developed for the domestic dog (Canis familiaris). All tested primers showed transferability and amplified fragment sizes similar to those described for the canine genome. From the total...
Palavras-chave: 2.02.04.00-0 bush dog; Canids; Chromosome; Microsatellite; Mosaicism Genética Animal bush dog; Canids; Chromosome; Microsatellite; Mosaicism.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6775

Ticks (Acari: Ixodidae) on domestic dogs in Serra de Caldas Novas State Park, Goiás: epidemiological aspects
Provedor de dados: 49
Autores: Queirogas,Vera Lúcia de; Oliveira,Liliane Martins de; Marques,Renata Leal; Oliveira,Diego Silva Freitas; Szabó,Matias Pablo Juan.
We herein report tick (Acari: Ixodidae) infestation of four domestic dogs wandering inside Serra de Caldas Novas State Park, Goiás. Twenty seven ticks were collected from these hosts along nine days in November 2008. Ticks were identified as adults of Amblyomma cajennense, Amblyomma ovale, Amblyomma tigrinum and Rhipicephalus sanguineus as well as Amblyomma spp. nymphs. One of the dogs displayed facial myoclonus, a symptom of canine distemper. Such disease is a serious viral and contagious disease of dogs and also of several wild animals. Overall tick species found on dogs clearly showed the transit of these hosts between the natural areas of the park and anthropic areas, urban or rural. Such situation illustrates the potential of dogs to transmit...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Canids; Diseases; Amblyomma spp.; Distemper; Conservation units.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000100032

Rangeliosis: histopathological analysis, hematology and molecular detection of canine Rangelia vitalii in Rio Grande do Sul, Brazil
Provedor de dados: 65
Autores: Fredo,Gabriela; Leite-Filho,Ronaldo Viana; Pietzsch,Camila De Ávila; Andrade,Caroline Pinto de; Duda,Naila Cristina Blatt; Nascimento,Lismara Castro do; Valle,Stella de Faria; Soares,João Fábio; Sonne,Luciana.
ABSTRACT: In the period from January 2004 to December 2015, 56 dogs were diagnosed with rangeliosis in the Setor de Patologia Veterinária at Universidade Federal do Rio Grande do Sul (SPV-UFRGS). The main hematological abnormalities were thrombocytopenia and anemia. The affected dogs showed signs of apathy, anorexia, fetid and bloody diarrhea, vomiting, and dehydration. At necropsy, the main changes were jaundice, splenomegaly, hepatomegaly, and lymphadenomegaly. Histological analyses revealed parasitophorous vacuoles of Rangelia vitalii in cytoplasmic endothelial cells, mainly in the heart, kidneys, lymph nodes, intestines, and pancreas. Inflammation characterized by mononuclear cells was predominant in the analysis, and most was due to the presence of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canids; Hemoparasite; Nambyuvú; Rangelia vitalii; Rangeliosis.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001000501