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- Chesh, Adrian S., et al. Show all 6 Authors
- Behavioral ecology and sociobiology 2012 v.66 no.1 pp. 57-66
- Leptopsylla segnis; Xenopsylla cheopis; adults; burrows; correlation; ectoparasites; females; group size; hosts; parasitoses; pathogens; pregnancy; progeny; pups; rodents
- ... Social animals are susceptible to high infection levels by contact-transmitted parasites due to increased conspecific interaction. Exotic parasites are known to have adverse consequences on native hosts. We examined the relationship between social group size and exotic ectoparasite loads, and adult infection levels with per capita fitness and offspring survival in the plural breeding rodent Octodo ...
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- Chesh, Adrian S., et al. Show all 3 Authors
- Ethology 2007 v.113 no.2 pp. 155-165
- biomass; burrows; energy requirements; hardness; models; nests; predation; radio telemetry; reproduction; risk; rodents; shrubs; soil; trapping; Chile
- ... Variation in animal space use patterns may be linked to numerous ecological factors affecting survival and reproduction. We examined the relationship between ecology and above- and below-ground components of space use by Octodon degus, a semi-fossorial rodent in Chile. We monitored the daytime minimum convex polygon and adaptive kernel range areas of 26 individuals and determined the number of bur ...
- Chesh, Adrian S., et al. Show all 7 Authors
- Ethology 2009 v.115 no.6 pp. 540-554
- adults; breeding; habitats; immigration; mortality; philopatry; progeny; rodents
- ... It has been hypothesized that animal groups in socially cohesive species are inherently unstable, ultimately the result of constraints to independent breeding, and proximately the product of adult fidelity and offspring philopatry. Other processes, including emigration of individuals that join pre-existing groups would be less important. We examined the persistence and variation in the composition ...