Rodent Societies: An Ecological & Evolutionary Perspective

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Social and Individual Dynamics of a Predator-Prey Episode The following scenario is a composite of observations made by members ...

Figure 26.1 Composite episode of California ground squirrels confronting a northern Pacific rattlesnake hunting for pups. Ground ...

other three pups (fig. 26.1g). Hobbling on her injured leg, she carries her pups one by one to a burrow about 25 me- ters away, ...

contexts has uncovered significant structural differences (Leger et al. 1980; Owings and Leger 1980). Perhaps use of these calls ...

liers 1988). For example, the benzodiazepine-GABA system initiates brief analgesia in white-footed mice (Peromyscus leucopus) af ...

burrow was. This knowledge was also needed earlier, dur- ing breeding, because estrous female California ground squirrels travel ...

veys antipredator benefits. First, prairie dogs in larger social groups respond with shorter latencies to simulated preda- tory ...

sitive to the value of the contested resource (the pups; cf. Parker and Rubenstein 1981). Relative to other adults, females with ...

dorphin release (Keverne et al. 1989; Spruijt et al. 1992). The resulting capacity of grooming to produce more posi- tive psycho ...

et al. 2001 for a review). Little is known about such pro- cesses in more visually oriented, diurnal rodents, but ample opportun ...

likely to be present during past colder glacial periods. The systems subserving the antisnake behavior of California ground squi ...

the literature on ground-dwelling sciurids, emphasizing our own work on ground squirrels, but have also cited ad- ditional relev ...

O n a summer daya number of years ago I looked down from an arête high up on the Creststone Needle, a peak in southwestern Color ...

Studies of rodents have been influential in developing a bet- ter understanding of both aspects of alarm communication. Which Ro ...

Table 27.1 Genera in which acoustic alarm communication has been reported Alarm Other alarm Family Genus Common name Reference c ...

behavior (Baack and Switzer 2000). Typically, individuals immediately increase vigilance but, over time, receivers ha- bituate t ...

not a member of their social group. Subjects were then “probed” with either a novel call from the same individual or a novel cal ...

of “direct” and “indirect” to describe fitness gains through descendents or nondescendents because, once appropri- ately weighte ...

less reliable, and that calls from young should therefore communicate less risk than calls from adults. This finding is consiste ...