Results 41 to 50 of about 8,711 (179)

The influence of haemoglobin–O2 affinity on aerobic capacity in hypoxia in high‐altitude deer mice (Peromyscus maniculatus)

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend The influence of haemoglobin–O2 affinity on aerobic capacity in hypoxia has been contentious. Many high‐altitude natives have greater haemoglobin–O2 affinity (lower P50, the O2 pressure at 50% haemoglobin saturation) than their low‐altitude counterparts, but the advantages of this change for aerobic metabolism have often remained
Kayla M. Garvey, Graham R. Scott
wiley   +1 more source

Spatial variation in trophic ecology of small mammals in wetlands: support for hydrological drivers

open access: yesEcosphere, 2016
Food webs composed of similar consumers can vary based on nutrient input, habitat structure, and other factors. For wetland‐associated species, fluctuating water levels can potentially affect habitat quality, which in turn can affect trophic diversity ...
Jorista van derMerwe, Eric C. Hellgren
doaj   +1 more source

Corticosterone Under Experimental Manipulation of Nutrition and Parasite Burden in a Wild Rodent System

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 7, Page 749-758, August 2026.
ABSTRACT Environmental pressures shape survival and life‐history dynamics partly by triggering the release of glucocorticoids, whose short‐term benefits but long‐term costs make it essential to understand what drives their levels. Here, we used an experimental manipulation of two environmental stressors—food availability and parasite burden—to directly
Sarah E. Wolf   +4 more
wiley   +1 more source

Counter-gradient variation and the expensive tissue hypothesis explain parallel brain size reductions at high elevation in cricetid and murid rodents

open access: yesScientific Reports, 2023
To better understand functional morphological adaptations to high elevation (> 3000 m above sea level) life in both North American and African mountain-associated rodents, we used microCT scanning to acquire 3D images and a 3D morphometric approach to ...
Aluwani Nengovhela   +4 more
doaj   +1 more source

Is the Cognitive Ability of Fawn‐Footed Mosaic‐Tailed Rat Melomys cervinipes Offspring Related to Mothers’ Care or Cognitive Abilities?

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 7, Page 785-794, August 2026.
ABSTRACT The cognitive abilities of many non‐human animals have been investigated in recent years; however, outside of laboratory rodent strains, it is largely unknown how direct and indirect genetic factors influence the development of cognition. In a previous study, we found no impact of maternal genetic or non‐genetic effects on problem solving in ...
Misha K. Rowell, Tasmin L. Rymer
wiley   +1 more source

Collection of blood from wild‐caught mice (Peromyscus) via submandibular venipuncture

open access: yesWildlife Society Bulletin, 2017
ABSTRAC Submandibular venipuncture is a common technique used to harvest whole blood from laboratory‐strain mice, but its effectiveness on wild‐caught Peromyscus spp. has not been formally tested.
Jacob L. Berl   +4 more
doaj   +1 more source

Micofagia por roedores en un bosque templado del centro de México

open access: yesRevista Mexicana de Biodiversidad, 2012
La micofagia por roedores en hongos hipogeos ha sido documentada en diversos ecosistemas a nivel mundial, sin embargo el consumo de hongos epigeos por este grupo ha sido pobremente estudiado.
Citlalli Castillo-Guevara   +2 more
doaj   +1 more source

MATING BEHAVIOR OF PEROMYSCUS-POLIONOTUS PEROMYSCUS-TRUEI

open access: yes, 1967
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Distribution and frequency of Vkorc1 polymorphisms in house mice and Norway rats in the northeastern United States

open access: yesPest Management Science, Volume 82, Issue 8, Page 7700-7710, August 2026.
This study assesses the distribution and frequency of Vkorc1 polymorphisms in house mice and Norway rats in northeastern USA. House mice showed higher frequency of Vkorc1 mutations than Norway rats. The A32V and Y139F mutations are first reported in mice, and the L128V is newly reported in Norway rats.
Jin‐Jia Yu   +6 more
wiley   +1 more source

Dos nuevas especies de Stilestrongylus (Nematoda: Heligmonellidae) parásitos de peromyscus (Rodentia: Cricetidae) de México

open access: yesRevista de Biología Tropical, 1999
Se describen dos especies nuevas del género Stilestrongylus Freitas, Lent & Almeida, 1937, parásitas de Peromyscus spp. (Rodentia: Cricetidae) provenientes del Estado de Hidalgo, Mexico. Stilestrongylus peromysci n. sp.
Jorge Falcón Ordaz   +1 more
doaj  

Home - About - Disclaimer - Privacy