Mule deer spatial association patterns and potential implications for transmission of an epizootic disease

Mejia-Salazar, Maria F., Goldizen, Anne W., Menz, Clementine S., Dwyer, Ross G., Blomberg, Simon P., Waldner, Cheryl L., Cullingham, Catherine I. and Bollinger, Trent K. (2017) Mule deer spatial association patterns and potential implications for transmission of an epizootic disease. PLoS ONE, 12 4: . doi:10.1371/journal.pone.0175385

Author Mejia-Salazar, Maria F.
Goldizen, Anne W.
Menz, Clementine S.
Dwyer, Ross G.
Blomberg, Simon P.
Waldner, Cheryl L.
Cullingham, Catherine I.
Bollinger, Trent K.
Title Mule deer spatial association patterns and potential implications for transmission of an epizootic disease
Journal name PLoS ONE   Check publisher's open access policy
ISSN 1932-6203
Publication date 2017-04-07
Year available 2017
Sub-type Article (original research)
DOI 10.1371/journal.pone.0175385
Open Access Status DOI
Volume 12
Issue 4
Total pages 21
Place of publication San Francisco, CA United States
Publisher Public Library of Science
Language eng
Formatted abstract
Animal social behaviour can have important effects on the long-term dynamics of diseases. In particular, preferential spatial relationships between individuals can lead to differences in the rates of disease spread within a population. We examined the concurrent influence of genetic relatedness, sex, age, home range overlap, time of year, and prion disease status on proximal associations of adult Rocky Mountain mule deer (Odocoileus hemionus hemionus) in a chronic wasting disease endemic area. We also quantified the temporal stability of these associations across different sex, age, and disease status classes. We used three years of high frequency telemetry data from 74 individuals to record encounters within 25 m of each other, and to calculate seasonal home range overlap measured by volume of intersection (VI). The strength of pairwise spatial association between adult mule deer was independent of genetic relatedness, age and disease status. Seasonal variation in association strength was not consistent across years, perhaps due to annual changes in weather conditions. The influence of home range overlap on association strength varied seasonally, whereby associations were stronger in pre-rut and fawning than in the rest of the seasons. The sexes of individuals also interacted with both VI and season. At increasing levels of VI, associations were stronger between females than between males and between females and males. The strongest associations in pre-rut were between males, while the strongest in rut were between females and males. The temporal stability of associations was markedly dependant on the sex and the diagnosis of the associating pair. Our findings highlight the importance of considering concurrent effects of biological and environmental factors when seeking to understand the role of social preference in behavioural ecology and disease spread. Applying this knowledge in epidemiological modelling will shed light on the dynamics of disease transmission among mule deer.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
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