Influence of field technique, density, and sex on home range and overlap of the southern red-backed vole (<i>Myodes</i> <i>gapperi</i>)

Tisell, Honora B; Degrassi, Allyson L.; Stephens, Ryan B.; Rowe, Rebecca J.

doi:10.1139/cjz-2018-0338

Cited by 7 publications

(14 citation statements)

References 51 publications

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“…Our data did not reveal sex differences in space use as shown for many other bird species (e.g. Aronsson et al 2016, Johansson et al 2018, Tisell et al 2019). For instance, male King Rails used more space during the non-breeding season than females (Kolts and McRae 2017).…”

Section: Discussionsupporting

confidence: 70%

Space use and site fidelity in the endangered Northern Bald Ibis Geronticus eremita: Effects of age, season, and sex

Puehringer-Sturmayr

Krejci

Schuster

et al. 2022

Bird Conservation International

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Summary Understanding space use of endangered species is critical for conservation planning and management. The advances in technology and data analysis allow us to collect data with unprecedented quality and inform us about the movements and habitat use of individuals and groups. With only about 700 individuals left in the wild, the Northern Bald Ibis Geronticus eremita is currently categorised as ‘Endangered’. However, little is known about the movements of this avian species in relation to breeding and individual differences. Using GPS transmitters we studied the movements of 32 Northern Bald Ibis from a semi-wild free-flying colony at the Konrad Lorenz Research Center in Austria during 1–4 years per individual. We investigated how sex, age class, breeding and non-breeding season affect space use and site fidelity. We found that individuals consistently showed high site fidelity, adults more than juveniles, and space use was highly overlapping between individuals and over successive years. When moving between different areas birds used consistent flyways thereby avoiding direct routes over mountainous areas. Adults had more expansive space use during the breeding season as compared to the non-breeding season, while juveniles only showed a slight decrease during the non-breeding season. We found no sex differences regarding space use or site fidelity. Our results lead to a better understanding of how Northern Bald Ibis move through their environment and how they use foraging areas, roosting sites, and space in general that in turn can help to inform conservation management of extant colonies and reintroduction programmes for new colonies.

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Section: Discussionsupporting

confidence: 70%

Space use and site fidelity in the endangered Northern Bald Ibis Geronticus eremita: Effects of age, season, and sex

Puehringer-Sturmayr

Krejci

Schuster

et al. 2022

Bird Conservation International

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“…Differential habitat selection by individuals for the highest quality areas available can be observed in individual home ranges [5,6]. An individual's home range is often defined by multiple abiotic and biotic features of the environment and can shift based on the dynamic characteristics of these features and an individual's physiological requirements [7][8][9]. Which resources an individual selects within its home range can therefore provide valuable information about species-specific behavior and ecological relationships [9,10].…”

Section: Introductionmentioning

confidence: 99%

Resource selection of a montane endemic: Sex-specific differences in white-bellied voles (Microtus longicaudus leucophaeus)

2020

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Resources that an individual selects contrasted against what is available can provide valuable information regarding species-specific behavior and ecological relationships. Small mammals represent excellent study organisms to assess such relationships. Isolated populations that exist on the edge of a species’ distribution often exhibit behavioral adaptations to the extremes experienced by a species and can provide meaningful insight into the resource requirements of the species. We deployed radio transmitters in a peripheral population of the long-tailed vole (Microtus longicaudus) during the mating season. We developed models of resource selection at multiple scales (within home range and patch). We found voles generally selected areas close to water and roads and consisting of high understory vegetation primarily composed of grasses. Resource selection varied between sexes suggesting different resource needs during the breeding season. The differential resource needs of voles might be a result of the energetic requirements for reproduction and are representative of a promiscuous or polygynous mating system.

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“…The These associations may represent the areas where fungal sporocarps were foraged from since M. gapperi and N. insignis commonly consumed ECM and AM sporocarps respectively. The relatively small size of the patch cuts (0.4 ha) likely allowed these species to consume sporocarps in the forest and move them into the cuts during activities within their home range, the average size of which is between 0.4 and nearly 4 ha (Tisell et al, 2019). Interestingly, both open habitat associates (M. pennsylvanicus and Z. hudsonius) consumed AM fungi but were almost never captured in the forest, suggesting that they may be foraging sporocarps inside the cut.…”

Section: Microhabitat Associationsmentioning

confidence: 99%

Functional, temporal and spatial complementarity in mammal‐fungal spore networks enhances mycorrhizal dispersal following forest harvesting

et al. 2021

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1. Animals that disperse plant or fungal propagules following forest disturbances, including timber harvests, play an important role during forest regeneration by dispersing seeds or spores from intact communities to disturbed sites. Determining how complementary or redundant animal species are as dispersers of propagules is key to understanding the stability of dispersal dynamics and informing management practices.2. Here we examine the functional, temporal and spatial components of mycorrhizal fungal spore dispersal by small mammals (rodents and shrews) following timber harvest. We tracked the interactions of seven mammal species and 34 fungal taxa composed of two mycorrhizal functional types, arbuscular mycorrhizae (AM) and ectomycorrhizae (ECM), in 11 patch cuts (0.4 ha) distributed across hardwood and mixedwood forest in the north-eastern United States. Over a 2-year period directly following harvests, we measured the relative contribution of mammal species to spore dispersal using networks that integrated mammal abundance with spore loads in scat. We also measured species-specific microhabitat associations.3. Mammals were complementary in their dispersal of AM and ECM fungal spores. However, within AM dispersal networks, mammals were redundant, with asynchrony in mammal population fluctuations among years leading to changes in the relative importance of mammal species. Comparatively, ECM fungal spore consumption and dispersal was primarily provided by one rodent species (Myodes gapperi), resulting in dispersal networks that were highly specialized. This indicates that AM spore dispersal is more robust to changes in mammal community turnover compared to ECM spore dispersal. 4. Mammal species varied from having no microhabitat associations to associating with a variety of different forest structure and ground cover conditions, indicating that species play different roles from broadcasting spores widely to depositing spores in discrete locations. By preserving microhabitat characteristics that are associated with small mammals in harvested areas, particularly downed wood and patches of pre-harvest vegetation, forest managers can help maintain dispersal of mycorrhizal fungi. | 2073Functional Ecology STEPHENS ET al.

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Influence of field technique, density, and sex on home range and overlap of the southern red-backed vole (Myodes gapperi)

Cited by 7 publications

References 51 publications

Space use and site fidelity in the endangered Northern Bald Ibis Geronticus eremita: Effects of age, season, and sex

Space use and site fidelity in the endangered Northern Bald Ibis Geronticus eremita: Effects of age, season, and sex

Resource selection of a montane endemic: Sex-specific differences in white-bellied voles (Microtus longicaudus leucophaeus)

Functional, temporal and spatial complementarity in mammal‐fungal spore networks enhances mycorrhizal dispersal following forest harvesting

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