Increased prevalence of bot flies (Cuterebra fontinella) on white-footed mice (Peromyscus leucopus) near forest edges

Wolf, Mosheh; Batzli, George O.

doi:10.1139/z00-185

Cited by 20 publications

(14 citation statements)

References 28 publications

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“…et al 1998, Sisk & Battin 2002. Parasitism is also higher at edges for some amphibians (Schlaepfer & Gavin 2001) and mammals (Wolf & Batzli 2001). There is less evidence for consistent effects of predation and parasitism on invertebrates.…”

Section: Species Interactionsmentioning

confidence: 98%

Ecological Responses to Habitat Edges: Mechanisms, Models, and Variability Explained

Ries

Fletcher

Battin

et al. 2004

Annu. Rev. Ecol. Evol. Syst.

1,144

1,052

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Key Words ecological boundary, ecotone, edge effect, effective area model, core area model, habitat fragmentation ■ Abstract Edge effects have been studied for decades because they are a key component to understanding how landscape structure influences habitat quality. However, making sense of the diverse patterns and extensive variability reported in the literature has been difficult because there has been no unifying conceptual framework to guide research. In this review, we identify four fundamental mechanisms that cause edge responses: ecological flows, access to spatially separated resources, resource mapping, and species interactions. We present a conceptual framework that identifies the pathways through which these four mechanisms can influence distributions, ultimately leading to new ecological communities near habitat edges. Next, we examine a predictive model of edge responses and show how it can explain much of the variation reported in the literature. Using this model, we show that, when observed, edge responses are largely predictable and consistent. When edge responses are variable for the same species at the same edge type, observed responses are rarely in opposite directions. We then show how remaining variability may be understood within our conceptual frameworks. Finally, we suggest that, despite all the research in this area, the development of tools to extrapolate edge responses to landscapes has been slow, restricting our ability to use this information for conservation and management.

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Section: Species Interactionsmentioning

confidence: 98%

Ecological Responses to Habitat Edges: Mechanisms, Models, and Variability Explained

Ries

Fletcher

Battin

et al. 2004

Annu. Rev. Ecol. Evol. Syst.

1,144

1,052

View full text Add to dashboard Cite

show abstract

“…Several studies have investigated the behavioural effects of botfly parasitism and have determined that botflies generally have little effect on Peromyscus compared to atypical hosts, such as non-native rodents, lagomorphs, and Carnivora, which experience physiological and behavioural changes resulting in decreased activity, food intake, and reproductive success (Slansky 2007). Nonetheless, individuals can be adversely affected by botfly parasitism, and a smaller dispersal distance from the natal nest was noted in the offspring of parasitized individuals (Wolf and Batzli 2001;Jaffe et al 2005). I offer this account of a female deer mouse eating a parasitizing botfly as the first account of a mechanism by which deer mice may mitigate the effects of botfly parasitism.…”

Section: Discussionmentioning

confidence: 99%

North American Deer Mouse, Peromyscus maniculatus, Consuming a Parasitizing Botfly Larva, Diptera: Cuterebridae

Stewart

2011

Can Field Nat

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During a laboratory study in Algonquin Provincial Park, Ontario, Canada, I videotaped a female North American Deer Mouse, Peromyscus maniculatus gracilis, consuming a botfly larva, Family Cuterebridae, that had just emerged from her chest. Although botfly parasitism has been widely studied in several species of small mammals, there are no prior reports of the host consuming the emerged botfly parasite.

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“…Habitat complexity (i.e., tree basal area, sapling basal area and CWD volume) was not a signiWcant predictor of infection patterns when vole abundance was taken into account. Although other studies found that infection patterns of bot Xies in small mammals appeared to be related to habitat attributes (Hensley 1976;Wolf and Batzli 2001;Cockle and Richardson 2003), we identiWed host abundance in August as the main factor driving both the probability of infection and the abundance of bot Xies.…”

Section: Infection Patterns Of Bot Xies In Red-backed Volesmentioning

confidence: 94%

Bot fly parasitism of the red-backed vole: host survival, infection risk, and population growth

et al. 2008

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Parasites can play an important role in the dynamics of host populations, but empirical evidence remains sparse. We investigated the role of bot fly (Cuterebra spp.) parasitism in red-backed voles (Myodes gapperi) by first assessing the impacts of the parasite on the probability of vole survival under stressful conditions as well as on the reproductive activity of females. We then identified the main factors driving both the individual risk of infection and the abundance of bot flies inside red-backed voles. Finally, we evaluated the impacts of bot fly prevalence on the growth rate of vole populations between mid-July and mid-August. Thirty-six populations of red-backed voles were sampled in the boreal forest of Québec, Canada. The presence and the abundance of parasites in voles, two host life history traits (sex and body condition), three indices of habitat complexity (tree basal area, sapling basal area, coarse woody debris volume), and vole abundance were considered in models evaluating the effects of bot flies on host populations. We found that the probability of survival of red-backed voles in live traps decreased with bot fly infection. Both the individual risk of infection and the abundance of bot flies in red-backed voles were driven mainly by vole abundance rather than by the two host life history traits or the three variables of habitat complexity. Parasitism had population consequences: bot fly prevalence was linked to a decrease in short-term growth rate of vole populations over the summer. We found that bot flies have the potential to reduce survival of red-backed voles, an effect that may apply to large portions of populations.

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Increased prevalence of bot flies (Cuterebra fontinella) on white-footed mice (Peromyscus leucopus) near forest edges

Cited by 20 publications

References 28 publications

Ecological Responses to Habitat Edges: Mechanisms, Models, and Variability Explained

Ecological Responses to Habitat Edges: Mechanisms, Models, and Variability Explained

North American Deer Mouse, <em>Peromyscus maniculatus</em>, Consuming a Parasitizing Botfly Larva, Diptera: Cuterebridae

Bot fly parasitism of the red-backed vole: host survival, infection risk, and population growth

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