Results 91 to 100 of about 2,891 (183)
Journal of Anatomy, Volume 245, Issue 3, Page 420-450, September 2024.The muscles of scratch‐diggers (Bathyergus spp.) show a higher mechanical advantage for forelimb flexion and shoulder stabilization than tooth‐diggers. The glenohumeral and olecranon joints play fundamental roles as robust pivots to resist the action of larger muscles. Tooth‐diggers lacked some muscles aiding with elbow extension and humeral retraction,
Germán Montoya‐Sanhueza +2 more
wiley +1 more source
Revista Chilena de Historia Natural, 2002 A previous experiment suggested that male degus, Octodon degus, use dustbathing during intrasexual communication. Herein, we assessed whether dustbathing by male and female degus is influenced by the social familiarity of previous marks.
Luis A. Ebensperger, Andrea Caiozzi
doaj
Diagnostic features of three nymphal instars of Sturnidoecus bannoo (Phthiraptera: Ischnocera) infesting Bank Myna Acridotheres ginginianus [PDF]
, 2010 Three nymphal instars of bank Myna louse, Sturnidoecus bannoo differ from each other not only any size, abdominal segmentation, chitinization but also in the number of setae occurring on head, thorax and abdomen.
Ahmad, Aftab +4 more
core +2 more sources
Biological Research, 2005 Wheel-running and other non-photic stimuli influence the rest-activity pattern of diurnal and nocturnal mammals. A day to night inversion of phase preference of activity was described among Octodon degus, when exposed to ad-libitum wheel running. We have
ADRIÁN OCAMPO-GARCÉS +3 more
doaj
Probabilistic inference and Bayesian‐like estimation in animals: Empirical evidence
Ecology and Evolution, Volume 14, Issue 7, July 2024.Abstract Animals often make decisions without perfect knowledge of environmental parameters like the quality of an encountered food patch or a potential mate. Theoreticians often assume animals make such decisions using a Bayesian updating process that combines prior information about the frequency distribution of resources in the environment with ...
Thomas J. Valone
wiley +1 more source
Estimating pathogen‐spillover risk using host–ectoparasite interactions
Ecology and Evolution, Volume 14, Issue 6, June 2024.Understanding the interacting factors that lead to pathogen transmission in a zoonotic cycle could help identify novel hosts of pathogens and the patterns that lead to disease emergence. We use parasite ecology, phylogenetics, and geography to predict known and unknown hosts of hantavirus.
Reilly N. Brennan +2 more
wiley +1 more source
Seasonal changes in the time budget of degus, Octodon degus
Behaviour, 2005 The activity budget of an individual is the allocation of time to all its activities, and is expected to vary in response to both internal and environmental factors that influence its energy acquisition, breeding success, and survival. We recorded seasonal variation in individual and social behaviour of a natural population of degus (Octodon degus), a ...
Marí José Hurtado, Luis A. Ebensperger
openaire +5 more sources
Frontiers in NeuroscienceMaturation of the forebrain involves transitions from higher to lower levels of synaptic plasticity. The timecourse of these changes likely differs between regions, with the stabilization of some networks scaffolding the development of others.
B. Maximiliano Garduño +9 more
doaj +1 more source
PLoS ONE, 2008 BackgroundTool use is defined as the manipulation of an inanimate object to change the position or form of a separate object. The expansion of cognitive niches and tool-use capabilities probably stimulated each other in hominid evolution.
Kazuo Okanoya +4 more
doaj +1 more source
Modelling the emergence of rodent filial huddling from physiological huddling [PDF]
, 2017 Huddling behaviour in neonatal rodents reduces the metabolic costs of physiological thermoregulation. However, animals continue to huddle into adulthood, at ambient temperatures where they are able to sustain a basal metabolism in isolation from the ...
Gilbert C +6 more
core +2 more sources