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Articles 1 - 4 of 4
Full-Text Articles in Animal Studies
Sociality Increases Juvenile Survival After A Catastrophic Event In The Feral Horse (Equus Caballus), Cassandra M.V. Nuñez, James S. Adelman, Daniel I. Rubenstein
Sociality Increases Juvenile Survival After A Catastrophic Event In The Feral Horse (Equus Caballus), Cassandra M.V. Nuñez, James S. Adelman, Daniel I. Rubenstein
Cassandra M.V. Nuñez
In several social species, adult associations have been linked to individual fitness. Less is known about offspring associations and the mechanisms by which they may influence fitness. We investigate the effects of sociality on juvenile survival in feral horses (Equus caballus). We use foal degree (number of associates) and foal weight (number of interactions) to assess sociality’s importance to foal survival of a catastrophic event, the gathering and removal of 40% of the horse population. We found that 1) foal degree was a better predictor of foal survival than was foal weight; 2) following the gather, foals with access to …
Linking Social Behavior And Stress Physiology In Feral Mares (Equus Caballus): Group Transfers Elevate Fecal Cortisol Levels, Cassandra M.V. Nuñez, James S. Adelman, Jessica Smith, Laurence Gesquiere, Daniel I. Rubenstein
Linking Social Behavior And Stress Physiology In Feral Mares (Equus Caballus): Group Transfers Elevate Fecal Cortisol Levels, Cassandra M.V. Nuñez, James S. Adelman, Jessica Smith, Laurence Gesquiere, Daniel I. Rubenstein
Cassandra M.V. Nuñez
Feral horses (Equus caballus) have a complex social structure, the stability of which is important to their overall health. Behavioral and demographic research has shown that decreases in group (or band) stability reduce female fitness, but the potential effects on the physiological stress response have not been demonstrated. To fully understand how band stability affects group-member fitness, we need to understand not only behavioral and demographic, but also physiological consequences of decreases to that stability. We studied group changes in feral mares (an activity that induces instability, including both male and female aggression) on Shackleford Banks, NC. We found that …
Forests, Animals, And Ambushes In The Alliterative Morte Arthure, Jeremy Withers
Forests, Animals, And Ambushes In The Alliterative Morte Arthure, Jeremy Withers
Jeremy Withers
In the Alliterative Morte Arthure, the forest is often depicted as an ideal place for ambushing one's enemy. Such persistent attacks lead many warriors in the poem to encounter densely wooded areas with trepidation and even at times with explicit violence towards these places. However, through its use of several arresting locus amoenus passages, the Morte demonstrates alternative ways for soldiers to experience natural landscapes. Rather than suggest that forests are inherently malicious and forbidding places (as many medieval romances have done), the poem suggests that when cleared of an immediate threat of ambush, natural landscapes can be restorative and …
Chivalry In Pholcid Spiders Revisited, Julie A. Blanchong, Michael S. Summerfield, Mary A. Popson, Elizabeth M. Jakob
Chivalry In Pholcid Spiders Revisited, Julie A. Blanchong, Michael S. Summerfield, Mary A. Popson, Elizabeth M. Jakob
Julie A. Blanchong
Cohabiting pairs of adult spiders are likely to interact over prey, and the outcome of these interactions is likely to affect the reproductive success of both individuals. In two species of pholcid spiders, previous workers reported the occurrence of "chivalrous" behavior, in which males cede prey to females. We looked for the occurrence of chivalrous behavior in another pholcid spider, Holocnemus pluchei. Pairs of spiders were placed on a web and left overnight without prey. A housefly was then introduced onto the web equidistant from the spiders, and subsequent interactions were noted on audiotape. We found no evidence of chivalry …