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Aggression in bottlenose dolphins: evidence for sexual coercion, male-male competition, and female tolerance through analysis of tooth-rake marks and behaviour Erin M. Scott 1) , Janet Mann 1,2,4) , Jana J. Watson-Capps 1) , Brooke L. Sargeant 1) & Richard C. Connor 3) ( 1 Department of Biology

In: Behaviour

) partially filled with a styrofoam block that provided a suitable space for the spider to weave its funnel-web (Assi Bessekon et al., 1992). The females were exclusively fed 20 mg crickets, a prey that spiderlings are unable to subdue. Female tolerance towards the young was evaluated by dropping ten 4-week

In: Behaviour

away whenever they try to feed on the prey. It may be added that other experiments, designed specifically for stu- dying female tolerance of conspecific spiderling (Assl-BESSEKON, in prep.), also produce a somewhat similar pattern of results. These results cast some light upon the mechanisms of onset

In: Behaviour
Authors: Palombit, Cheney, and Seyfarth

predicts co-variation in male grunting and female tolerance. For example, a newly immigrant male is expected to grunt often to females in his approaches, but as time progresses and female aversion to the male wanes, he may use grunts less often. Over time, then, the relative rate of supplants following

In: Behaviour

small cages and in large enclosures (STOREY & SNOW, 1987; STOREY et al., 1994), in contrast to the limited amount of time recorded under similar experimental conditions with meadow voles from more southerly populations (e.g. WILSON, 1982; OLIVERAS & NOVAK, 1986). Variation in female tolerance towards

In: Behaviour

the litter was born. We cannot say for certain why this variability should occur in burrow systems but it seems likely to be due to individual differences in the female's tolerance of the prolonged presence of the male in the nest and her greater ability to exclude him from the nest in the burrow

In: Behaviour
Authors: Molly Morris and Susan Lyons

- hualcoyotl males perform more intersexual headstands than smaller males. Perhaps the greater number of headstands by larger males is a function of increased female tolerance for this behavior by preferred larger males. There is evidence of inter- and intrasexual use of the same trait in many different

In: Behaviour

threshold model; Orians, 1969; Wittenberger, 1976). B. No cost of polygyny to females: expect inter-female tolerance, territorial overlap, and no decrease in female fitness with more females in a breeding group. I. Direct benefits: expect increase female fitness with more females in a breeding group (e

In: Behaviour

dominant femalestolerance levels The level of tolerance of the dominant female when she was at the feeding box was assessed using three different measures. First, we calculated the rates at which the dominant female directed aggression to the subordinate female when the latter was within 1 meter of the

In: Behaviour
Author: Matthew Martin

supports female tolerance vis-à-vis religious acceptance. In response, thousands of Malayali women gathered in protest, forming a 620 km ‘Women’s wall’, arm-in-arm, as a statement of menstrual solidarity. 133 As I demonstrate in Chapters 1 and 4, there has, since the mid-medieval period, been a marked

In: Tantra, Ritual Performance, and Politics in Nepal and Kerala