ORDÓÑEZ-GARZA, N.; SWIER, V.J.; HANSON, J.D.; SOTERO-CAIO, C.G.; BRADLEY, R.D. 2013. Cariotipo de Peromyscus grandis (Rodentia: Cricetidae). Therya 4(3):575-580. doi: 10.12933/therya-13-122
Abstract. Peromyscus grandis is a rodent whose distribution is restricted to the mountain ranges of central Guatemala. This note represents the first report of karyotypic data for this species. The karyotype (fundamental number = 58) closely resembles karyotypes of other species of Peromyscus.
sábado, 16 de agosto de 2014
sexta-feira, 15 de agosto de 2014
Journals: Austral Ecology
Austral
Ecology
- Abreviatura:
Austral Ecol.
- Qualis
CAPES: A2 (Biodiversidade), B2 (Ciências Biológicas I).
- Taxa
de Publicação: Sim.
-
Idiomas: Inglês.
-
Disponibilidade: Restrito. Vários artigos são de acesso livre,
mas alguns são restritos.
-
Submissão: Online, pelo sistema ScholarOne Manuscripts, com acesso
na home page.
Austral
Ecology é o principal periódico para ecologia básica e aplicada
no Hemisfério Sul. Como o periódico oficial da Sociedade Ecológica da Austrália
(The Ecological Society of Australia),
Austral Ecology aborda a semelhança
entre os ecossistemas na Austrália e muitas partes do sul da África, América do
Sul, Nova Zelândia e Oceania. Por exemplo muitas espécies nas biotas exclusivas
destas regiões compartilham ancestrais da Gondwana. O objetivo da Sociedade
Ecológica da Austrália é publicar pesquisas inovadoras para encorajar a
partilha de informações e experiências que enriquecem a compreensão da ecologia
do Hemisfério Sul.
Austral
Ecology publica artigos originais que descrevem estudos
experimentais, observacionais ou teóricos em sistemas terrestres, marinhos ou
de água doce, que são considerados sem viés taxonômico. Fascículos temáticos
especiais são publicados regularmente, incluindo simpósios na ecologia de
habitats estuarinos e sedimentos moles, sistemas de água doce e peixes de
recifes de coral.
sábado, 9 de agosto de 2014
New distribution records of Serra do Mar Grass Mouse Akodon serrensis Thomas, 1902 (Mammalia: Rodentia: Sigmodontinae) in the southernmost Brazil
ABREU, M.S.L.; CHRISTOFF, A.U.; VALIATI, V.H.; OLIVEIRA, L.R. 2014. New distribution records of Serra do Mar Grass Mouse Akodon serrensis Thomas, 1902 (Mammalia: Rodentia: Sigmodontinae) in the southernmost Brazil. Check List 10(3):655-659. doi: 10.15560/10.3.655
Abstract. Geographic distribution is critical information for conservation of the species. In this note we report the southernmost record of Akodon serrensis, a Neotropical terrestrial rodent endemic of the Brazilian Atlantic Forest, but yet with undefined distribution limits. Two specimens surveyed in Rio Grande do Sul state were identified as A. serrensis, one by DNA analysis and other by external and cranial morphology. These records represent an expansion of nearly 177 km from the previous known limit of its southern distribution. Moreover, these new records demonstrated the importance of sampling effort in order to establish the real distribution limits of a species.
Abstract. Geographic distribution is critical information for conservation of the species. In this note we report the southernmost record of Akodon serrensis, a Neotropical terrestrial rodent endemic of the Brazilian Atlantic Forest, but yet with undefined distribution limits. Two specimens surveyed in Rio Grande do Sul state were identified as A. serrensis, one by DNA analysis and other by external and cranial morphology. These records represent an expansion of nearly 177 km from the previous known limit of its southern distribution. Moreover, these new records demonstrated the importance of sampling effort in order to establish the real distribution limits of a species.
sábado, 2 de agosto de 2014
Morphometric variations of laelapine mite (Acari: Mesostigmata) populations infesting small mammals (Mammalia) in Brazil
MARTINS-HATANO, F.; GETTINGER, D.; MANHÃES, M.L.; BERGALLO, H.G. 2012. Morphometric variations of laelapine mite (Acari: Mesostigmata) populations infesting small mammals (Mammalia) in Brazil. Brazilian Journal of Biology 72(3):595-603.
Abstract. The goal of this study was to evaluate the morphometric variation of laelapine populations (Acari, Mesostigmata) associated with neotropical oryzomyine rodents at different geographic localities in Brazil. Three nominal mite species were selected for study, all infesting the pelage of small mammals at different localities in Rio de Janeiro, Espírito Santo, Bahia, and the Federal District, Brazil. To analyse morphometric characteristics, thirty-seven morphological characters distributed across the whole body of each specimen were measured. We use the Analysis of Principal Components, extracting the three first axes and projecting each mite in these axes. Major species level changes in the taxonomy of the host mammals allows an independent examination of morphometric variation of mites infesting a set of distinctly different host species at different geographic localities. Gigantolaelaps vitzthumi and Laelaps differens are associated with oryzomyine rodents of the genus Cerradomys, and consistently showed a tendency to cluster by host phylogeny. Laelaps manguinhosi associated with Nectomys rattus in central Brazil is morphometrically distinct from mites infesting N. squamipes in the coastal restingas of Rio de Janeiro and Espírito Santo. The results obtained here indicate that laelapine mite populations can vary among geographic areas and among phylogenetically related host species. Clearly, the study of these mites at the population level can be an important tool for clarifying the taxonomy of both mites and hosts.
Abstract. The goal of this study was to evaluate the morphometric variation of laelapine populations (Acari, Mesostigmata) associated with neotropical oryzomyine rodents at different geographic localities in Brazil. Three nominal mite species were selected for study, all infesting the pelage of small mammals at different localities in Rio de Janeiro, Espírito Santo, Bahia, and the Federal District, Brazil. To analyse morphometric characteristics, thirty-seven morphological characters distributed across the whole body of each specimen were measured. We use the Analysis of Principal Components, extracting the three first axes and projecting each mite in these axes. Major species level changes in the taxonomy of the host mammals allows an independent examination of morphometric variation of mites infesting a set of distinctly different host species at different geographic localities. Gigantolaelaps vitzthumi and Laelaps differens are associated with oryzomyine rodents of the genus Cerradomys, and consistently showed a tendency to cluster by host phylogeny. Laelaps manguinhosi associated with Nectomys rattus in central Brazil is morphometrically distinct from mites infesting N. squamipes in the coastal restingas of Rio de Janeiro and Espírito Santo. The results obtained here indicate that laelapine mite populations can vary among geographic areas and among phylogenetically related host species. Clearly, the study of these mites at the population level can be an important tool for clarifying the taxonomy of both mites and hosts.
sexta-feira, 1 de agosto de 2014
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