Journals - Journal of Mammalian Evolution

Journal of Mammalian Evolution

- Abreviatura: J. Mamm. Evol.
- Home Page: http://link.springer.com/journal/10914

- Qualis CAPES: A2 (Biodiversidade).

- Taxa de Publicação: Não há.

- Idiomas: Inglês.

- Disponibilidade: Restrito. Alguns artigos são divulgados no site e de acesso livre, mas a maioria é de acesso restrito.

- Submissão: Online, pelo sistema Editorial Manager, com acesso na home page.

O Journal of Mammalian Evolution é um periódico multidisciplinar dedicado aos estudos de morfologia comparada, biologia molecular, paleobiologia, genética, desenvolvimento e biologia reprodutiva, biogeografia, sistemática, etologia e ecologia, e dinâmicas populacionais de mamíferos e as formas como estes dados diversos podem ser analisados para a reconstrução da evolução de mamíferos. O periódico publica artigos originais e revisões de alta qualidade oriundas de estudos de laboratório e de campo. O periódico facilita a comunicação entre pesquisadores internacionais em muitos campos que contribuem para o nosso conhecimento da biologia evolutiva de mamíferos. O Journal of Mammalian Evolution é o periódico oficial da Sociedade para o Estudo da Evolução de Mamíferos (Society of the Study of Mammalian Evolution).

Seasonal activity patterns of rodents in a sagebrush community

O'FARRELL, M.J. 1974. Seasonal activity patterns of rodents in a sagebrush community. Journal of Mammalogy 55(4):809-823.

Abstract. Twelve species of nocturnal rodents were studied on a 2.7-hectare plot of sagebrush desert in west-central Nevada. Six species, Dipodomys merriami, D. ordii, D. panamintinus, D. microps, Onychomys torridus, and Peromyscus maniculatus, were active throughout the year. Four species, Perognathus longimembris, P. formosus, Microdipodops megacephalus, and Reithrodontomys megalotis, hibernated and were active only in spring, summer, and autumn. Onychomys leucogaster and Neotoma lepida were trapped intermittently throughout the year but were not permanente residents on the area. Differences in time of daily activity were found between potential competitors demonstrating a degree of temporal isolation. Time after sunset and amount of moonlight were the two most important factors correlated to rodent activity. Ambient temperature, wind, cloud cover, precipitation, and water vapor pressure had little effect on activity except when extreme conditions prevailed.

Responses of bats to forest fragmentation in the Mississippi River Alluvial Valley, Arkansas, USA

MEDLIN JR., R.E.; CONNIOR, M.B.; GAINES, K.F.; RISCH, T.S. 2010. Responses of bats to forest fragmentation in the Mississippi River Alluvial Valley, Arkansas, USA. Diversity 2(10):1146-1157. doi: 10.3390/d2101146.

Abstract. Intense conversion of bottomland hardwood forests to rice and soybeans in the Mississippi River Valley of Arkansas has restricted the remaining forest to isolated fragments. Habitat fragmentation has proven to be detrimental to population sustainability of several species, and is the subject of intense study with often species and latitude specific responses. We compared both coarse land area classes and landscape fragmentation metrics from six 30 km × 30 km subsets centered on publicly owned management areas to bat captures obtained from a 2005 population study. Patch density was the strongest predictor of total captures (R2 = 0.801, p = 0.016) and of Myotis austroriparius captures (R2 = 0.856, p = 0.008). Our findings indicate that patch density and area are important predictors of bottomland bat captures.

Journals - Mammalia

Mammalia

- Abreviatura: Mammalia.
- Home Page: http://www.degruyter.com/view/j/mamm

- Qualis CAPES: B1 (Biodiversidade), B4 (Ciências Biológicas I).

- Taxa de Publicação: Não há.

- Idiomas: Inglês, Francês.

- Disponibilidade: Restrito. Alguns artigos são divulgados no site e de acesso livre, mas a maioria é de acesso restrito.

- Submissão: Online, pelo sistema ScholarOne Manuscripts, com acesso na home page.

Mammalia é um periódico trimestral dedicada ao inventário, análise e interpretação da diversidade de mamíferos. Ela publica resultados originais em todos os aspectos de sistemática (morfologia comparativa, funcional e evolutiva; morfometria, filogenia; biogeografia; taxonomia e nomenclatura) e biologia (fisiologia, comportamento, anatomia comparada) de mamíferos com forte foco na ecologia, incluindo biodiversidade, distribuição nos habitats, competição e conservação.

Revisão sobre o fenômeno da hibridização em cetáceos e pinípedes

SCHAURICH, M.N.; LOPES, F.R.V.; OLIVEIRA, L.R. 2012. Revisão sobre o fenômeno da hibridização em cetáceos e pinípedes. Neotropical Biology and Conservation 7(3):199-209.

Abstract. The hybridism is the result of mating between two individuals from different and reproductively isolated gene pools accepted as species that usually generate infertile offspring. The evolutionary consequences of this phenomenon vary depending on the mating system, hybrid’s frequency, the degree of reproductive isolation and the genetic differences between the parental species as well as their speciation process. Hybrids have been recorded frequently in aquatic and terrestrial mammals, both in nature and captivity. We review studies published in peer-reviewed journals between 1940 and 2010, in which hybrid cases were reported for cetaceans and pinnipeds. We found 37 scientific papers recording 1,201 hybrids: 57 in cetaceans (nature = 27; captivity = 30) and 1,144 in pinnipeds (nature = 1,137; captivity = 7). A possible explanation for this phenomenon in the wild could be the close phylogenetic relatedness between parental species and also the potential absence of conspecific breeding partners. This last factor could be a result of population decline due to commercial exploitation occurred in the past. This fact is valid for pinnipeds, but especially true for blue whales, Balaenoptera musculus. It is important to note that about 99% of pinniped hybrids were reported in sympatric breeding colonies along the subantarctic islands, which facilitate the hybridization. Outbreeding depression followed by loss of genetic variability and reduction of evolutionary potential and consequently increasing the risk of extinction are the most important results of the hybridism.

Curso de Extensão: Ecologia de Mamíferos Neotropicais

Nos dias 11, 18 e 25 de maio ocorrerá, no Unilasalle, Canoas, RS, o curso de extensão universitária Ecologia de Mamíferos Neotropicais. O curso visa desenvolver as teorias básicas de ecologia de populações e comunidades e biologia geral aplicadas a mamíferos, além de apresentar práticas para o estudo de mamíferos, com ênfase nas espécies da região neotropical.
Outras versões do curso já ocorreram na Unisinos, em anos anteriores, com boa aceitação do público. Reformulado, o curso agora volta a ser apresentado, desta vez em Canoas.
Maiores informações em www.unilasalle.edu.br/extensao. Clique aqui para ver o folder do evento.

Bone accumulations of spotted hyaenas (Crocuta crocuta, Erxleben, 1777) as indicators of diet and human conflict; Mashatu, Botswana

KUHN, B.F. 2012. Bone accumulations of spotted hyaenas (Crocuta crocuta, Erxleben, 1777) as indicators of diet and human conflict; Mashatu, Botswana. International Journal of Ecology, v. 2012, Article ID 178348, 6 pages. doi: 10.1155/2012/178348.

Abstrac. In a region where free ranging domestic species mix with wildlife, it is imperative to determine what, if any, predation may have occurred on domestic stock. As human settlements continuously encroach upon wild habitats, determining the types of predatorhuman conflicts that exist can be crucial to conserve numerous predator species. The partial diet of spotted hyaenas (Crocuta crocuta) of the Mashatu Game Reserve, Botswana, was established via analyses of faunal remains associated with four dens to determine predation/scavenging on wild or domestic species. Domestic species composed less than 3%of identified faunal remains. We acknowledge that this methodology is biased against small mammals, but, when combined with sociological studies, this methodology will aid in determining alleged predation on domestic stock by spotted hyaenas. Results indicated that the spotted hyaenas in question feed primarily on wild species.