Bat activity and richness in beetle-killed forests in southern British Columbia

Lawson, Kirstie J.; Lausen, Cori L.; Mancuso, Kristen A.; Volkmann, Logan A.; Gooliaff, TJ; Hutchen, Jenna; Teichman, Kristine J.; Kelly, Angelina J; Hodges, Karen E.

doi:10.1093/jmammal/gyz034

Cited by 7 publications

(3 citation statements)

References 43 publications

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“…Acoustic recorders, which require less power to operate, might serve a similar purpose for smaller species (5.5 g recorded for 24 hr; Couchoux et al., 2015). While stationary remote acoustic monitoring has provided novel approaches for documenting species presence, distribution and abundance (Hannay et al., 2013), activity levels (Lawson et al., 2019) and conspecific interactions (Manna et al., 2014; Welch et al., 1992), recent attachment of recorders directly to animals has provided novel approaches for recording individual behaviour (Ilany et al., 2013; Lynch et al., 2013) including that of predators (Wijers et al., 2018) and humans (e.g. diet, Mirtchouk et al., 2016).…”

Section: Introductionmentioning

confidence: 99%

The Purr‐fect Catch: Using accelerometers and audio recorders to document kill rates and hunting behaviour of a small prey specialist

et al. 2021

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1. Characterizing variation in predator behaviour and, specifically, quantifying kill rates is fundamental for parameterizing predator-prey and food web models. Yet, current methods for recording kill rates of free-ranging predators, particularly those that consume small-bodied (<2 kg) prey, present a number of associated challenges.2. In this paper, we deployed custom-adapted acoustic recorders and tri-axial accelerometers on free-ranging Canada lynx Lynx canadensis to assess the capacity of biologging devices to continuously document individual hunting behaviour, including prey selection and kill rates, on a predator that specializes on prey weighing <2 kg.3. Automated classification of acoustic recordings captured 87% of snowshoe hare kills that were identified through snow-tracking (26 of 31 kills). Classification of detailed acceleration recordings summarized over minutes, instead of seconds, captured consumption of snowshoe hare Lepus americanus, but not smaller species, at high accuracy (F1 = 0.96). 4. By summarizing acoustic and accelerometer data from free-ranging lynx, we demonstrate the capacity of these devices to document within-and betweenindividual variation in diet composition (ranging from 40% to 80% snowshoe hares) and daily feeding bouts (ranging from 0 to 3.5 bouts per day).5. We suggest that acoustic recorders provide a promising method for characterizing several aspects of predator hunting behaviour including prey selection and chase outcomes, while broad-scale accelerometer-based behavioural classifications provide hare kill rates and fine-scale non-hunting behavioural information.Combined, the two technologies provide a means to remotely document both kills and feeding events of small-bodied prey, allowing for individual-based exploration of functional responses, predator-prey interactions and food web dynamics at temporal scales relevant to environmental change.

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Section: Introductionmentioning

confidence: 99%

The Purr‐fect Catch: Using accelerometers and audio recorders to document kill rates and hunting behaviour of a small prey specialist

et al. 2021

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“…Although beetle kill has affected portions of these land cover types, levels have been lower than in subalpine forest in the state (Barry et al 2018). Evidence suggests that bat communities may be more resilient to large-scale declines of forest from beetle kill than previously thought (Lawson et al 2019). Bats also show resilience to large-scale fires in areas where alternate roosting resources such as rock crevices are available (Snider et al 2013).…”

Section: Discussionmentioning

confidence: 99%

Use of predictive distribution models to describe habitat selection by bats in Colorado, USA

Neubaum

Aagaard

2022

J Wildl Manag

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Numerous processes operating at landscape scales threaten bats (e.g., habitat loss, disease). Temperate bat species are rarely examined at commensurate scales because of logistical and modeling constraints. Recent modeling approaches now allow for presenceonly datasets, like those often available for bats, to assist with the development of predictive distribution models. We describe the use of presence-only data and rigorous predictive distribution models to examine habitat selection by bats across Colorado, USA.We applied hierarchical Bayesian models to bat locations from 1906-2018 to examine relationships of 13 species with landscape covariates. We considered differences in type of activity (foraging, roosting, hibernation), seasonality (summer vs. winter), and scale (1, 5, 10, and 15-km buffers). These findings generated statewide probability of use models to guide management of bat species in response to threats (e.g., white-nose syndrome [WNS]). Analysis of buffers suggest selection of land cover and environmental covariates occurs at different scales depending on the species and activity. Pinyon (Pinus spp.)-juniper (Juniperus spp.) appeared as a positive association in the highest number of models, followed by montane woodland, supporting the importance of these forest types to bats in Colorado. Other covariates commonly associated with bats in Colorado include westerly longitudes, and negative associations with montane shrubland. Mechanical treatments within pinyon-juniper and montane woodlands should be conducted with caution to avoid harming bat communities. We developed hibernation models for only 2 species, making apparent

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“…Due to the resulting initiation of many natural processes in the ecosystem, the spruce bark beetle is now considered a keystone species in forest biology [35]. In contrast to studies on birds [36][37][38][39][40][41][42] or even on ungulates [43,44], the impact of insect outbreaks on bats in forests has so far been studied fragmentarily [45][46][47]. However, recent data from Europe indicate that the impact of insect outbreaks can be significant and manifest itself in more than one way [32,[48][49][50].…”

Section: Introductionmentioning

confidence: 99%

Nursery Roosts Used by Barbastelle Bats, Barbastella barbastellus (Schreber, 1774) (Chiroptera: Vespertilionidae) in European Lowland Mixed Forest Transformed by Spruce Bark Beetle, Ips typographus (Linnaeus, 1758) (Coleoptera: Curculionidae)

Rachwald

Apoznański

Thor

et al. 2022

Forests

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Białowieża Primeval Forest (BPF, approx. 1700 km2) is an important forest area in Europe from the point of view of the protection of natural diversity. BPF is covered with old mixed tree stands of mostly natural origin. Norway spruce is a tree species in BPF and covers approx. 27% of its area. Between 2012 and 2017 a large outbreak of the bark beetle Ips typographus (Linnaeus, 1758) took place in the forest, which transformed the stands and left many dead standing trees. At that time salvage logging had begun but was stopped due to protests by scientists and activists and for legal reasons. As a result of research conducted using a radiotelemetry method in 2020, we found that the Western barbastelle bat Barbastella barbastellus (Schreber, 1774) chooses nursery roosts in dead Norway spruce trees, showing ecological plasticity by colonizing a newly available resource. Based on this, we found that the Western barbastelle has a preference for a type of roost rather than a tree species. Insect outbreaks in forests of primary, natural, or semi-natural origin are one of the natural factors that shape the habitat. Removal of dead standing trees disrupts these processes, and in this particular case results in the disappearance of a newly appeared ecological niche.

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Bat activity and richness in beetle-killed forests in southern British Columbia

Cited by 7 publications

References 43 publications

The Purr‐fect Catch: Using accelerometers and audio recorders to document kill rates and hunting behaviour of a small prey specialist

The Purr‐fect Catch: Using accelerometers and audio recorders to document kill rates and hunting behaviour of a small prey specialist

Use of predictive distribution models to describe habitat selection by bats in Colorado, USA

Nursery Roosts Used by Barbastelle Bats, Barbastella barbastellus (Schreber, 1774) (Chiroptera: Vespertilionidae) in European Lowland Mixed Forest Transformed by Spruce Bark Beetle, Ips typographus (Linnaeus, 1758) (Coleoptera: Curculionidae)

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