A Prospective Power Analysis and Review of Habitat Characteristics Used in Studies of Tree-Roosting Bats

Lacki, Michael J.

doi:10.3161/001.005.0211

Cited by 39 publications

(31 citation statements)

References 37 publications

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“…Odds of snags being used as roosts by females of all 3 bat species increased with increasing diameter, a common finding in roost selection studies (Hayes 2003, Lacki and Baker 2003, Kalcounis-Rüppell et al 2005, Barclay and Kurta 2007. Large-diameter trees tend to be in more open areas or extend above the canopy, presumably enhancing access and increasing exposure to solar radiation, which would contribute to cavity warming (Hayes 2003, Kunz and Lumsden 2003, Barclay and Kurta 2007.…”

Section: Discussionmentioning

confidence: 74%

Use of Conifer Snags as Roosts by Female Bats in Western Oregon

Arnett

Hayes

2009

J Wildl Manag

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Forest management activities influence habitat suitability for bats, and knowledge of the roosting ecology of bats is fundamental to developing strategies for conserving bats in managed forests. Information on use of roosts by multiple species of bats in a given area may provide insight into interspecific ecological patterns and could improve management prescriptions to provide habitat for bats through time across diverse ownerships and over multiple spatial scales. We investigated use of conifer snags as roosts by females of 3 species of forest‐dwelling bats in Douglas‐fir (Pseudotsuga menzesii) forests in the western Oregon Cascade Range. We radiotagged 29 female big brown bats (Eptesicus fuscus), 55 long‐legged myotis (Myotis volans), and 27 long‐eared myotis (Myotis evotis) and located 42, 105, and 24 snag roosts for the 3 species, respectively. All 3 species most frequently used Douglas‐fir snags and in similar proportions to their availability. Big brown bats and long‐legged myotis rarely roosted in stands <40 years old but age of stands used by female long‐eared myotis did not differ from those randomly available. Odds of a snag being used as a roost by big brown bats increased with diameter at breast height and decreased with distance from the capture site. Diameter of snags used for roosting and the number of small (10–50 cm dbh) snags within the 20‐m radius plot were variables in the best model for roost use by long‐legged myotis. The best model for long‐eared myotis included distance to the capture site. Odds of a snag being used by female long‐eared myotis decreased with increasing distance from the capture site. There was considerable overlap in structural characteristics and the physical context of roost snags among the 3 species, but the types of roosts used among landscapes with differing densities of snags differed among the 3 species. Although big brown bats and long‐legged myotis used only snags and live trees as roosts, long‐eared myotis used a diversity of structures and the frequency of use of these structures differed with density of snags in the landscape. Relative to other roost types, frequency of use of snags by long‐eared myotis was nearly twice as high in landscapes with high densities of snags as in those with low densities. We found that some species of bats alter selection of roosts depending on landscape context and availability of different types of roosts. Our findings demonstrate that forest managers must consider the needs of multiple bat species and the distribution of roosts in the landscape, especially where densities of snags are low and at low elevations in intensively managed landscapes.

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Section: Discussionmentioning

confidence: 74%

Use of Conifer Snags as Roosts by Female Bats in Western Oregon

Arnett

Hayes

2009

J Wildl Manag

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“…One of the radiotrackedhost individuals ( M. chiloensis ) in this study appeared to roost solitary in a hollow tree, which is a relatively unsheltered roost with fluctuating climatic conditions. An individual tree can only be considered a semi‐permanent roost, often only used by bats for some years, when trees are at a certain degree of decay (Lacki & Baker, ; Lacki, Baker, & Johnson, ). Tree‐roosting bats also use several roosts within their home range and show a high degree of roost switching within a season (Kerth, Ebert, & Schmidtke, ; Lewis, ).Therefore, a low host population density and temporary use of roosts by the hosts may necessitate a more permanent, ectoparasitic life‐history for B. chilensis attached to its host.…”

Section: Discussionmentioning

confidence: 99%

The Klingon batbugs: Morphological adaptations in the primitive bat bugs, Bucimex chilensis and Primicimex cavernis, including updated phylogeny of Cimicidae

Ossa¹,

Johnson

Puisto

et al. 2019

Ecology and Evolution

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The Cimicidae is a family of blood‐dependent ectoparasites in which dispersion capacity is greatly associated with host movements. Bats are the ancestral and most prevalent hosts for cimicids. Cimicids have a worldwide distribution matching that of their hosts, but the global classification is incomplete, especially for species outside the most common Cimicidae taxa. In this study, we place a little‐studied cimicid species, Bucimex chilensis , within a comprehensive molecular phylogeny of Cimicidae by sequencing the genomic regions of this and other closely related species. For this study, we collected B. chilensis females from Myotis chiloensis in Tierra del Fuego, 1,300 km further south than previously known southernmost distribution boundary. We also sequenced COI regions from Primicimex cavernis , a species which together with B. chilensis comprise the entire subfamily Primiciminae. Using Bayesian posterior probability and maximum‐likelihood approaches, we found that B. chilensis and P. cavernis clustered close to each other in the molecular analyses, receiving support from similar morphological features, agreeing with the morphology‐based taxonomic placement of the two species within the subfamily Primiciminae. We also describe a previously unrecognized morphological adaptation of the tarsal structure, which allows the austral bat ectoparasite, B. chilensis , to cling on to the pelage of its known host, the Chilean myotis ( Myotis chiloensis ). Through a morphological study and behavioral observation, we elucidate how this tarsal structure operates, and we hypothesize that by clinging in the host pelage, B. chilensis is able to disperse effectively to new areas despite low host density. This is a unique feature shared by P. cavernis , the only other species in Primiciminae.

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“…An important impact is the availability of suitable foraging habitats and food supply (e.g. Walsh and Mayle 1991;Walsh et al 1995;Arlettaz 1996;Walsh and Harris 1996a, b;Brigham et al 1997;Jung et al 1999;Kusch et al 2004;Zahn et al 2005), as well as roost availability (reviewed by Lacki and Baker 2003). The range of foraging habitat used in forests is species specific and depends on the various hunting strategies of species.…”

Section: Introductionmentioning

confidence: 97%

Relating bat species presence to habitat features in natural forests of Slovakia (Central Europe)

et al. 2008

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For the assessment of the habitat use of bats with consideration of a complexity of environmental features a largescale multivariate canonical correspondence analysis (CCA) was performed. Data were collected in April-September (1999 using mist-netting and bat-detectors (n ¼ 209 samplings) in Slovakia (n ¼ 160 sites). For the habitat description, 17 environmental variables that characterised the sampling site, tree-species composition and general character of surrounding forest were selected. In study sites, altogether 93% of Slovak chiropterofauna species were recorded but only 16 species (2466 individuals) were recorded in more than 5% of samplings. The most common and frequent species were Myotis mystacinus (frequency of occurrence ¼ 57%, species dominance ¼ 12%) and Myotis myotis (44%, 10%), followed by Barbastella barbastellus (32%, 6%), Plecotus auritus (32%, 6%), Nyctalus noctula (31%, 9%) and Myotis brandtii (31%, 7%). Of the tested environmental variables used in CCA analysis, 13 had significant influence on the species' presence. On the base of gradients in ordination analysis, there were two main groups of species. In the first ''true'' forest bats group the tree-dwelling and gleaning species Myotis bechsteinii, Myotis nattereri and P. auritus dominated. Their occurrence was connected mainly with old forests of natural tree-species composition. The second group comprised species, which foraged in more open space or along the forest edge (with the farmland) and avoided closed interior (particularly Eptesicus serotinus, N. noctula, Nyctalus leisleri, Pipistrellus pipistrellus). The presence of mountain species Eptesicus nilssonii and Vespertilio murinus was associated mainly with dominance of spruce. Suggested predictive modelling of species composition in forest bat assemblages in conditions of natural forests can help in nature conservation.

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A Prospective Power Analysis and Review of Habitat Characteristics Used in Studies of Tree-Roosting Bats

Cited by 39 publications

References 37 publications

Use of Conifer Snags as Roosts by Female Bats in Western Oregon

Use of Conifer Snags as Roosts by Female Bats in Western Oregon

The Klingon batbugs: Morphological adaptations in the primitive bat bugs, Bucimex chilensis and Primicimex cavernis, including updated phylogeny of Cimicidae

Relating bat species presence to habitat features in natural forests of Slovakia (Central Europe)

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