Results 21 to 30 of about 18,815 (214)

Trophic niche differentiation between invasive and native frog species in urban wetlands of Kunming, China

open access: yesGlobal Ecology and Conservation, 2022
Non-native species often proliferate and become invasive in urban ecosystems. Knowing the interactions between the overlapping trophic niches of invasive and native species is imperative, and answering this question of how they succeed in these ...
QiSheng Li   +6 more
doaj   +1 more source

Climate change and American Bullfrog invasion: what could we expect in South America? [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: Biological invasion and climate change pose challenges to biodiversity conservation in the 21(st) century. Invasive species modify ecosystem structure and functioning and climatic changes are likely to produce invasive species' range shifts ...
Javier Nori   +4 more
doaj   +1 more source

Human streptococcus agalactiae strains in aquatic mammals and fish [PDF]

open access: yes, 2013
<p>Background: In humans, Streptococcus agalactiae or group B streptococcus (GBS) is a frequent coloniser of the rectovaginal tract, a major cause of neonatal infectious disease and an emerging cause of disease in non-pregnant adults.
Crumlish, M.   +7 more
core   +5 more sources

Alterações histopatológicas em girinos de rã-touro alimentados com rações comerciais de diferentes níveis protéicos Histopathological alterations in bullfrog tadpoles fed commercial diets with three levels of crude protein

open access: yesRevista Brasileira de Zootecnia, 2008
Realizaram-se necropsia e exame histopatológico de girinos de rã-touro (Rana catesbeiana) alimentados com rações comerciais formuladas com 32, 36, 45 ou 55% de proteína bruta (PB) visando estabelecer a relação entre o nível de proteína bruta da ração e a
José Teixeira de Seixas Filho   +5 more
doaj   +1 more source

Productive diagnosis offrog culture in the state of Rio de Janeiro

open access: yesRevista Brasileira de Saúde e Produção Animal, 2023
Brazilian frog farming has a history of production that began in the state of Rio de Janeiro in 1935. Over the years, this activity has spread throughout Brazil, with technological advances that have improved the productivity and health of enterprises ...
Pedro Vieira ESTEVES   +3 more
doaj   +1 more source

Histocompatibility Genetics of Bullfrog Populations [PDF]

open access: yesEvolution, 1961
Genetic studies of anuran species have been limited for the most part by failure of the F1 generation to reach maturity under laboratory conditions. Thus data on backcross and F2 progenies are not available and the mode of inheritance even of overt traits such as pigment patterns remains problematical (Anderson and Volpe, 1958).
W. H. Hildemann, R. Haas
openaire   +1 more source

Gene expression differs in susceptible and resistant amphibians exposed to Batrachochytrium dendrobatidis. [PDF]

open access: yes, 2018
Chytridiomycosis, the disease caused by the fungal pathogen Batrachochytrium dendrobatidis (Bd), has devastated global amphibian biodiversity. Nevertheless, some hosts avoid disease after Bd exposure even as others experience near-complete extirpation ...
Eskew, Evan A   +6 more
core   +2 more sources

Pathogenic fungus in feral populations of the invasive North American bullfrog in Argentina [PDF]

open access: yes, 2017
Nearly a third (32.4%) of the world?s amphibian species are either threatened with extinction or already extinct (1). The chytrid fungus Batrachochytrium dendrobatidis (Bd) (Chytridiomycetes: Ryzophydiales) (2) has been recognized as responsible for mass
Ghirardi, Romina   +4 more
core   +1 more source

Stereociliary Myosin-1c Receptors Are Sensitive to Calcium Chelation and Absent from Cadherin 23 Mutant Mice [PDF]

open access: yes, 2006
The identities of some of the constituents of the hair-cell transduction apparatus have been elucidated only recently. The molecular motor myosin-1c (Myo1c) functions in adaptation of the hair-cell response to sustained mechanical stimuli and is ...
Cyr, Janet L   +4 more
core   +1 more source

DISTRIBUTION, DIET, AND PREVALENCE OF AMPHIBIAN CHYTRID FUNGUS IN NON-NATIVE AMERICAN BULLFROGS (LITHOBATES CATESBEIANUS) AT THE VALENTINE NATIONAL WILDLIFE REFUGE, NEBRASKA, USA [PDF]

open access: yes, 2014
American Bullfrogs (Lithobates catesbeianus) have been widely introduced beyond their native range in North America and can negatively affect organisms in wetland environments via a suite of mechanisms including interspecific interactions and disease ...
Geluso, Keith   +4 more
core   +2 more sources

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