Results 31 to 40 of about 26,897 (235)

Marked decline in forest-dependent small mammals following habitat loss and fragmentation in an Amazonian deforestation frontier [PDF]

open access: yes, 2020
Agricultural frontier expansion into the Amazon over the last four decades has created million hectares of fragmented forests. While many species undergo local extinctions within remaining forest patches, this may be compensated by native species from ...
Palmeirim, Ana Filipa   +2 more
core   +1 more source

Anatomical study of brachial plexuses of a koala, a Tasmanian devil, and a common ringtail possum

open access: yesFolia Morphologica
BACKGROUND: Marsupials have a narrower range of forelimb morphological features than placental mammals. It is hypothesised that this is due to a constraint in the reproductive biology of marsupials.
Yutaro Natsuyama   +8 more
doaj   +1 more source

Sutarostrongylus johnsoni sp. n. (Nematoda: Trichostrongylina, Heligmosomoidea) from the pademelon, Thylogale stigmatica (Marsupialia) from Queensland, Australia

open access: yesParasite, 2004
A new species of heligmosomoid nematode Sutarostrongylus johnsoni sp. n., belonging to the sub-family Herpetostrongylinae Skrjabin & Schultz, is described from the small intestine (duodenum) of the red-legged pademelon, Thylogale stigmatica (Gould, 1860)
Beveridge I., Durette-Desset M.C.
doaj   +1 more source

Plantation forests and biodiversity conservation [PDF]

open access: yes, 2003
There are five key reasons why biodiversity conservation should be considered a part of plantation management. (1) The plantation estate is large, and balancing various land management values with wood and pulp production is important when extensive ...
Hobbs, R.J., Lindenmayer, D.B., Salt, D.
core   +2 more sources

Ecological selectivity and the evolution of mammalian substrate preference across the K–Pg boundary

open access: yesEcology and Evolution, 2021
The Cretaceous–Paleogene (K–Pg) mass extinction 66 million years ago was characterized by a worldwide ecological catastrophe and rapid species turnover. Large‐scale devastation of forested environments resulting from the Chicxulub asteroid impact likely ...
Jonathan J. Hughes   +4 more
doaj   +1 more source

American marsupials chromosomes: why study them?

open access: yesGenetics and Molecular Biology
Marsupials, one of the three main groups of mammals, are only found in Australia and in the American continent. Studies performed in Australian marsupials have demonstrated the great potential provided by the group for the understanding of basic genetic ...
Marta Svartman
doaj   +1 more source

Artificial nests as an alternative to studies of arboreal small mammal populations: a five-year study in the Atlantic Forest, Brazil

open access: yesZoologia (Curitiba), 2011
Despite the great diversity of Brazilian Atlantic forest small mammals, natural history of most species is unknown due to their cryptic and nocturnal habits, but also due to the inadequacy of methods to capture some species, especially those of arboreal ...
Diogo Loretto, Marcus Vinícius Vieira
doaj   +1 more source

The "backdoor pathway" of androgen synthesis in human male sexual development. [PDF]

open access: yes, 2019
Mammalian sex determination (male versus female) is largely controlled by genes, whereas sex differentiation (development of reproductive structures) is largely controlled by hormones. Work in the 20th century indicated that female external anatomy was a
Auchus, Richard J, Miller, Walter L
core   +2 more sources

Progamotaenia capricorniensis sp. nov. (Cestoda: Anoplocephalidae) from wallabies (Marsupialia: Macropodidae) from Queensland, Australia

open access: yesParasite, 2003
Progamotaenia capricorniensis sp. nov. (Cestoda: Anoplocephalidae) is described from the wallabies Macropus dorsalis (Gray, 1837] and Petrogale assimilis Ramsay, 1877 from Queensland, Australia.
Beveridge I., Turni C.
doaj   +1 more source

Trypanosomatids in Small Mammals of an Agroecosystem in Central Brazil: Another Piece in the Puzzle of Parasite Transmission in an Anthropogenic Landscape

open access: yesPathogens, 2019
We surveyed infection by Trypanosoma spp. and Leishmania spp. in small wild mammals from Cumari, Goiás State aiming to investigate the diversity of trypanosomatid in a modified landscape of the Brazilian Cerrado (and possible infection overlapping ...
Elida M. V. Brandão   +8 more
doaj   +1 more source

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