Roosts of allen's lappet-browed bat in Northern Arizona

Ben G. Solvesky, Carol L. Chambers

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


In Arizona, USA, Allen's lappet-browed bat (Idionycteris phyllotis) forms maternity colonies in ponderosa pine (Pinus ponderosa) snags. There is little information on the roosting habitat of males. We used radiotelemetry to locate 16 maternity, 3 postlactating, and 2 bachelor roosts and combined data with unpublished data for maternity roosts (n 11) located in 19931995. Most (96) maternity roosts were in large-diameter (x? ± SE: 64 ± 2.7 cm) ponderosa pine snags under sloughing bark. Models that best predicted the probability of a snag's use as a maternity roost indicated bats selected taller snags closer to forest roads than comparison snags. Maternity roosts averaged 11 bats per roost (SE 2, n 15; from exit counts) and were an average distance of 1.6 km from capture sites (SE 0.3, n 17). Bachelor roosts were in vertical sandstone cliff faces in pinyonjuniper (Pinus edulisJuniperus spp.) woodlands approximately 12 km from capture sites; these and other capture records in Arizona indicated sexual segregation may have occurred during the maternity season. Of 11 maternity snag roosts located in 19931995, only one continued to function as a roost. Resource managers should maintain patches of large-diameter ponderosa pine snags with peeling bark to provide maternity roosting habitat for Allen's lappet-browed bat.

Original languageEnglish (US)
Pages (from-to)677-682
Number of pages6
JournalJournal of Wildlife Management
Issue number5
StatePublished - Jul 2009


  • Allen's lappet-browed bat
  • Arizona
  • Bark
  • Idionycteris phyllotis
  • Maternity roost
  • Ponderosa pine
  • Roost selection
  • Snag

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Nature and Landscape Conservation


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