Guide for Acoustic Identification of Florida bats


Family

Vespertilionidae

Database species code

Myogri or Mygr

See glossary for explanation of codes

Scientific name

Myotis grisescens A. H. Howell, 1909

Taxonomy follows Simmons and Cirranello (2021)

Call shape

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Typical North American Myotis pulses with FM reversed J broadband pulses of short duration.

Vocal signature parameters

Parameters   N Min Max Mean St.Dev 10% 25% 75% 90%
Dur 1309 1.00 5.99 3.22 1.39 1.36 2.03 4.32 5.28
TBC 1279 1.3 9710.8 174.8 407.7 50.4 83.0 163.4 259.4
Fmin 1309 42.11 59.70 43.93 2.45 42.11 42.55 44.20 46.51
Fmax 1309 43.96 109.59 62.58 12.31 49.32 52.98 70.80 80.00
BW 1309 1.63 66.81 18.65 12.43 5.01 9.05 26.56 35.56
Fmean 1309 43.14 64.84 50.60 4.46 46.04 47.25 53.02 57.23
Fk 1309 43.01 87.91 51.09 6.22 46.24 47.62 51.95 56.02
FcH1 1309 21.51 40.00 23.95 2.91 21.98 22.47 24.24 26.49
Fc 1309 43.01 80.00 47.91 5.82 43.96 44.94 48.48 52.98
FcH3 1309 64.52 120.00 71.86 8.74 65.94 67.41 72.72 79.47
Sc 1309 -499.6 744.9 108.6 112.5 30.3 45.1 126.4 251.3
Pmc 1309 0.60 149.30 30.84 22.45 7.00 13.90 43.30 62.62

 

Reported by Szewczak (2018)

Myogri Fc Fmax Fmin FmaxE dur uppr slp lwr slp slp @ Fc total slp
Mean 45.7 79.5 41.8 48.2 7.2 11.5 2.0 2.4 4.8
Max 47.0 91.0 44.0 52.0 8.5 15.0 3.1 4.2 7.6
Min 44.0 68.0 40.0 44.0 5.8 8.3 0.9 0.5 2.0

Source of acoustic data

Chris Corben

Known counties of distribution
  • Bay
  • Calhoun
  • Escambia
  • Gadsden
  • Holmes
  • Jackson
  • Jefferson
  • Leon
  • Liberty
  • Okaloosa
  • Santa Rosa
  • Walton
  • Washington
    Conservation status

    Near threatened; Ver.3.1 ; Population trend - increasing; evaluated 2008. (I.U.C.N. 2017.)

    Citations

    Marks, C. S., and G. E. Marks. 2006. Bats of Florida. Pp. 176. University of Florida Press, Gainesville.

     

    Simmons, N. B., and A. L. Cirranello. 2020. Bat Species of the World: A taxonomic and geographic database. http://batnames.org

     

    Szewczak, J. M. 2018. Echolocation Call Characteristics of Eastern U.S. Bats. Echolocation call characteristics of Eastern U.S. Bats. Unpublished report.

     

    The IUCN 2017. Red List of Threatened Species. Version 2017-1.www.iucnredlist.org;. Downloaded on August 6, 2017.

    Guide for Acoustic Identification of Florida bats 2021, all rights reserved.