Behavioural correlates of parasitism and reproductive success in male eastern chipmunks, Tamias striatus

Patterson, Lucy D.; Schulte‐Hostedde, Albrecht I.

doi:10.1016/j.anbehav.2011.02.016

Cited by 45 publications

(31 citation statements)

References 116 publications

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“…In chipmunks, exploration may increase the risk of predation or parasitism (Boyer et al . ; Patterson & Schulte‐Hostedde ). On the other hand, exploration enables chipmunks to sample ephemeral food patches (Hall, Humphries & Kramer ) and is likely to improve spatial knowledge to escape predators (Elliott ) or find mates (Bergeron et al .…”

Section: Discussionmentioning

confidence: 99%

“…). For example, some animals in a population may consistently explore or approach the novel features of their environment faster than others, which may have implication for their ability to find food, mate or their vulnerability to predation (Dingemanse ; Patterson & Schulte‐Hostedde ). A major goal is to understand how such consistent behavioural variation is generated and maintained in natural populations (Dingemanse & Wolf ; Réale et al .…”

Section: Introductionmentioning

confidence: 99%

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Pulsed resources and the coupling between life‐history strategies and exploration patterns in eastern chipmunks (Tamias striatus)

Montiglio

Garant

Bergeron

et al. 2014

Journal of Animal Ecology

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Summary1. Understanding the causes of animal personality (i.e. consistent behavioural differences) is a major aim of evolutionary studies. 2. Recent theoretical work suggests that major personality traits may contribute to evolutionary trade-offs. However, such associations have only been investigated in a few study systems, and even less so in free ranging animal populations. 3. Eastern chipmunks exhibit consistent individual differences in exploration, ranging from slow to fast. Birth cohorts also experience dramatic differences in age at first breeding opportunity due to annual differences in beech mast. Individuals may breed for the first time at 24, 33 or 50% of their average life span, depending on year of birth. Here, we used data from a long-term survey on a wild population to investigate the relationship between reproductive life history and consistent individual differences in exploration. We determined whether predictable differences in age at first breeding opportunity among birth cohorts were associated with exploration differences and favoured individuals with different exploration. 4. Birth cohorts with a predictably earlier age at first breeding opportunity were faster explorers on average. Slower explorers displayed their highest fecundity (females) or highest fertilization success (males) later in their life compared with faster explorers. Overall, slow explorers attained a higher lifetime reproductive success than fast explorers when given an opportunity to reproduce later in their life. 5. Our results suggest that the timing of mating seasons, associated with fluctuating food abundance, may favour individual variation in exploration and maintain population variation through its effects on reproductive life history. Together, our result shed light on how fluctuation in ecological conditions may maintain personality differences and on the nature of the relationships between animal personality and life history.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pulsed resources and the coupling between life‐history strategies and exploration patterns in eastern chipmunks (Tamias striatus)

Montiglio

Garant

Bergeron

et al. 2014

Journal of Animal Ecology

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“…This density‐dependent infection probability, however, differs among individuals resulting in infection heterogeneity among individuals (VanderWaal & Ezenwa, ; Woolhouse et al, ) and could partially be attributed to consistent behavioral differences between individuals across time and/or contexts, currently referred to as animal personality (Carere & Maestripieri, ; Réale, Reader, Sol, McDougall, & Dingemanse, ). Indeed, there is a growing body of evidence that personality affects infection probability, as several studies found a positive correlation among exploration, boldness, activity, and parasite/pathogen load (Barber & Dingemanse, ; Bohn et al, ; Boyer, Réale, Marmet, Pisanu, & Chapuis, ; Dizney & Dearing, ; Patterson & Schulte‐Hostedde, ). For example, bolder deer mice ( Peromyscus maniculatus ) are three times more likely to be infected with Sin Nombre virus and responsible for most of the transmission events (Clay, Lehmer, Previtali, St Jeor, & Dearing, ; Dizney & Dearing, ).…”

Section: Introductionmentioning

confidence: 99%

Relationship between population density and viral infection: A role for personality?

Broecke

Mariën

Sabuni

et al. 2019

Ecology and Evolution

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Conspecific density and animal personality (consistent among‐individual differences in behavior) may both play an important role in disease ecology. Nevertheless, both factors have rarely been studied together but may provide insightful information in understanding pathogen transmission dynamics. In this study, we investigated how both personality and density affect viral infections both direct and indirectly, using the multimammate mice (Mastomys natalensis) and Morogoro arenavirus (MORV) as a model system. Using a replicated semi‐natural experiment, we found a positive correlation between MORV antibody presence and density, suggesting that MORV infection is density‐dependent. Surprisingly, slower explorers were more likely to have antibodies against MORV compared to highly explorative individuals. However, exploration was positively correlated with density which may suggest a negative, indirect effect of density on MORV infection. We have shown here that in order to better understand disease ecology, both personality and density should be taken into account.

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“…We validated our choice of distribution and method of modeling our data for final reduced models by testing for overdispersion (all p > .05), generating Q‐Q plots, and plotting scaled residuals against predicted values [simulated with the DHARMa package in R (Hartig, )], with all models compliant. A Poisson distribution has also been used previously to model predictors of numbers of offspring produced in other organisms [e.g., male eastern chipmunks (Patterson & Schulte‐Hostedde, )].…”

Section: Methodsmentioning

confidence: 99%

Genomic pedigree reconstruction identifies predictors of mating and reproductive success in an invasive vertebrate

Levine

Douglas

Adams

et al. 2019

Ecology and Evolution

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The persistence of an invasive species is influenced by its reproductive ecology, and a successful control program must operate on this premise. However, the reproductive ecology of invasive species may be enigmatic due to factors that also limit their management, such as cryptic coloration and behavior. We explored the mating and reproductive ecology of the invasive Brown Treesnake (BTS: Boiga irregularis) by reconstructing a multigenerational genomic pedigree based on 654 single nucleotide polymorphisms for a geographically closed population established in 2004 on Guam (N = 426). The pedigree allowed annual estimates of individual mating and reproductive success to be inferred for snakes in the study population over a 14‐year period. We then employed generalized linear mixed models to gauge how well phenotypic and genomic data could predict sex‐specific annual mating and reproductive success. Average snout–vent length (SVL), average body condition index (BCI), and trappability were significantly related to annual mating success for males, with average SVL also related to annual mating success for females. Male and female annual reproductive success was positively affected by SVL, BCI, and trappability. Surprisingly, the degree to which individuals were inbred had no effect on annual mating or reproductive success. When juxtaposed with current control methods, these results indicate that baited traps, a common interdiction tool, may target fecund BTS in some regards but not others. Our study emphasizes the importance of reproductive ecology as a focus for improving BTS control and promotes genomic pedigree reconstruction for such an endeavor in this invasive species and others.

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Behavioural correlates of parasitism and reproductive success in male eastern chipmunks, Tamias striatus

Cited by 45 publications

References 116 publications

Pulsed resources and the coupling between life‐history strategies and exploration patterns in eastern chipmunks (Tamias striatus)

Pulsed resources and the coupling between life‐history strategies and exploration patterns in eastern chipmunks (Tamias striatus)

Relationship between population density and viral infection: A role for personality?

Genomic pedigree reconstruction identifies predictors of mating and reproductive success in an invasive vertebrate

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