Results 51 to 60 of about 7,439 (151)

Age and Huddling as Determinants of Metabolic Rate in Grasshopper Mice (Onychomys leucogaster) [PDF]

open access: yes, 1979
The metabolic rates of grasshopper mice (Onychomys leucogaster) were determined every third day from birth to adulthood. Metabolic rates were quantitated by measuring oxygen consumption in an open circuit system.
Baeyens, Dennis A.   +2 more
core   +2 more sources

Vertebrate community composition and activity at giant otter latrines in the northern Pantanal

open access: yesEcosphere, Volume 17, Issue 4, April 2026.
Abstract Mustelids and other terrestrial carnivores use communal latrines where feces and urine serve as olfactory cues for territory demarcation and intraspecific communication. These strong scent cues may also influence the broader vertebrate community, either acting as an attractant for species in search of food or as a warning of predator presence.
Evan P. Olden   +8 more
wiley   +1 more source

Mounting a specific immune response increases energy expenditure of the subterranean rodent Ctenomys talarum (tuco-tuco): Implications for intraspecific and interspecific variation in immunological traits [PDF]

open access: yes, 2010
It was recently hypothesised that specific induced defences, which require substantial time and resources and are mostly beneficial against repeated infections, are more likely to be favoured in 'slow-living-pace' species.
Antenucci, Carlos Daniel   +3 more
core   +1 more source

Community Assembly Reveals How Environmental Controls Over Rodent Competition Drive Deer Mouse Density and Hantavirus Infection

open access: yesEcology Letters, Volume 29, Issue 4, April 2026.
We examined how community assembly processes shape Sin Nombre hantavirus (SNV) dynamics in rodent communities across the southwestern United States. Environmental factors structured community composition, which regulated deer mouse abundance and SNV infection, rather than diversity alone.
Angela D. Luis, Dean E. Pearson
wiley   +1 more source

CARACTERÍSTICAS SEMINALES DEL TITÍ GRIS (Saguinus leucopus) BAJO CONDICIONES DE CAUTIVERIO, OBTENIDAS POR ESTIMULACIÓN VIBRATORIA DEL PENE (EVP)

open access: yesRevista de la Facultad de Medicina Veterinaria y de Zootecnia, 2013
Se evaluó la eficacia de la técnica de estimulación vibratoria del pene (evP) para obtener semen en quince especímenes de S. leucopus bajo condiciones de cautiverio, en cuatro diferentes sitios en Colombia. adicionalmente, se estandarizó la técnica evP y
R. A. Poches, C. I. Brieva, C. Jiménez
doaj  

Ectoparasites and Other Arthropod Associates of Some Voles and Shrews From the Catskill Mountains of New York [PDF]

open access: yes, 2017
Reported here from the Catskill Mountains of New York are 30 ectoparasites and other associates from 39 smoky shrews, Sorex fumeus, 17 from 11 masked shrews, Sorex cinereus, 11 from eight long-tailed shrews, Sorex dispar, and 31 from 44 rock voles ...
French, Thomas W, Whitaker, John O, Jr.
core   +2 more sources

Potential for the American toad (Anaxyrus americanus) to contribute to biological control in a vegetable agroecosystem

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract The American toad (Anaxyrus americanus) is a native insectivorous amphibian common in agricultural fields in eastern North America. Past research on this and related species suggests potential for positive or negative effects on pest populations, depending on the prevalence of intraguild predation.
Margaret R. Douglas   +6 more
wiley   +1 more source

Environmental and Temporal Effects on Vocal Activity in a Nocturnal Primate: Implications for Passive Acoustic Monitoring [PDF]

open access: yesAm J Primatol
Passive acoustic monitoring of the Critically Endangered Nosy Be sportive lemur (Lepilemur tymerlachsoni) for two lunar cycles revealed that vocal activity (i.e., call rates) increased over a 4‐h sampling window starting at twilight. The lemurs also called more as temperature and moonlight increased, and called less when it rained.
Martin L   +6 more
europepmc   +2 more sources

Urban park characteristics, genetic variation, and historical demography of white-footed mouse (Peromyscus leucopus) populations in New York City [PDF]

open access: yes, 2014
Severe fragmentation is a typical fate of native remnant habitats in cities, and urban wildlife with limited dispersal ability are predicted to lose genetic variation in isolated urban patches. However, little information exists on the characteristics of
Christopher Nagy, Jason Munshi-South
core   +1 more source

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