Molossidae

Eumflo or Eufl

See glossary for explanation of codes

Eumops floridanus (G. M. Allen, 1932)

Taxonomy follows Simmons and Cirranello (2021)

Search phase

Search phase

Hand release

Commute calls transitioning to search

Social calls

Feeding buzz

Detail of feeding buzz

Hand release of Nycticeius humeralis, occasional pulses may drop into Eumops range

L. cinereus commute calls will range into the upper Eumops range

Pules of  L. cinereus may drop into Eumops range

T. brasiliensis commute pulses will drop into the upper Eumops range

T. brasiliensis pulses will drop into Eumops range

To view call graphics click on the camera icon on the right. You can then move through all images by using the left or right arrow keys. A left mouse click returns to the fact sheet.

Search phase calls are single QCF pulses decreasing in frequency. A wide range of example call shapes and types are provided

This should be a species that is easy to confirm acoustically by evaluating complete call sequences. While the 90th percentile of calls range around 16 kHz, it is the only bat regularly emitting search phase calls below 15 kHz.

However, those without experience in identifying calls of all species occurring in Florida may confuse commute calls of Taderida brasiliensis, Lasiurus cinereus or social calls of  Nycticeius humeralis with calls of E. floridanus. This may result in false positive identification. Several examples are included for comparison.  Auto identification algorithms may also flag these calls as Eumflo incorrectly.

Hand release calls are considerably higher in frequency than free flying search phase calls.  Clutter calls recorded at roosts and feeding buzzes are also considerably higher in frequency than free flying diagnostic search phase calls.  These higher range of frequencies from such recordings are not useful as reference calls as they may be confused the other free flying species.   Note: The various auto-ID algorithms often incorrectly flag such pulses as those of other species..

Search phase calls

Parameters	N	Min	Max	Mean	St.Dev	10%	25%	75%	90%
Dur	1110	5.0	22.0	10.8	3.4	6.2	8.2	13.1	15.7
TBC	984	62.6	14653.9	805.6	917.1	390.5	474.7	741.0	1331.6
Fmin	1110	10.2	19.2	14.1	1.3	12.7	13.2	14.8	15.9
Fmax	1110	12.6	25.3	17.2	2.0	15.1	15.9	18.5	19.8
BW	1110	0.8	8.7	3.1	1.1	1.8	2.3	3.8	4.7
Fmean	1110	12.1	21.0	15.3	1.5	13.7	14.2	16.1	17.3
Fk	1110	12.6	21.8	16.2	1.6	14.4	15.0	17.2	18.4
FcH1	1110	5.9	9.9	7.4	0.7	6.6	6.8	7.8	8.4
Fc	1110	11.9	19.9	14.7	1.4	13.1	13.7	15.5	16.7
FcH3	1110	17.8	29.8	22.1	2.1	19.7	20.5	23.3	25.1
Sc	1110	-47.2	117.6	23.1	9.8	12.9	18.3	27.4	32.9
Pmc	1110	1.0	30.9	16.9	6.7	8.1	11.9	22.0	26.7

Feeding buzz

Parameters	N	Min	Max	Mean	St.Dev	10%	25%	75%	90%
Dur	1110	5.0	22.0	10.8	3.4	6.2	8.2	13.1	15.7
TBC	984	62.6	14653.9	805.6	917.1	390.5	474.7	741.0	1331.6
Fmin	1110	10.2	19.2	14.1	1.3	12.7	13.2	14.8	15.9
Fmax	1110	12.6	25.3	17.2	2.0	15.1	15.9	18.5	19.8
BW	1110	0.8	8.7	3.1	1.1	1.8	2.3	3.8	4.7
Fmean	1110	12.1	21.0	15.3	1.5	13.7

Parameters	N	Min	Max	Mean	St.Dev	10%	25%	75%	90%
Dur	251	0.8	44.5	8.9	6.5	2.0	4.9	11.0	14.9
TBC	236	1.7	2874	428	429	44	181	491	759
Fmin	251	10.0	20.9	15.0	1.6	13.2	14.0	15.9	17.1
Fmax	251	14.6	29.8	19.6	3.1	16.4	17.5	20.7	23.9
BW	251	0.3	15.7	4.6	3.1	1.4	2.4	5.7	8.8
Fmean	251	14.5	22.1	16.7	1.5	14.9	15.5	17.6	18.4
Fk	251	10.0	21.9	17.3	1.7	15.7	16.3	18.2	19.7
Fc	251	14.0	22.4	16.1	1.5	14.5	15.0	16.9	18.1
Sc	251	-610.4	356.5	23.5	79.5	9.0	20.9	39.0	62.8
Pmc	251	0.0	81.4	22.2	17.2	3.7	10.5	29.6	41.1

Cynthia and George Marks

Bruce Miller

Reference calls recorded by Marks and Miller are being archived at BioAcoustica and will be freely available. See Baker et al., (2015).

Florida Fish and Wildlife Conservation Commission (2018)

Federal Status: Endangered
FL Status: Federally-designated Endangered
FNAI Ranks: G5T1/S1 (Globally: Demonstrably Secure, Sub Sp. Critically Imperiled/State: Critically Imperiled)
IUCN Status: Vulnerable C2a(i)- population trend decreasing I.U.C.N. (2018)

The Florida bonneted bat is protected as an Endangered species by the Federal Endangered Species Act and as a Federally-designated Endangered species by Florida’s Endangered and Threatened Species Rule.

See FWC (2018)

See Bailey et al,. (2017) for predicted distributions and  Baker et. al., (2015) for discussion of BioAcoustica and Baker and Vincent (2019) for a critique of the lack of freely available acoustic data.

Bailey, A. M., H. K. Ober, A. R. Sovie, and R. A. McCleery. 2017. Impact of land use and climate on the distribution of the endangered Florida bonneted bat. Journal of Mammalogy. 98: 1586-1593.

Belwood, J.J. 1992. Florida mastiff bat Eumops glaucinus floridanus. Pages 216-223 in S.R. Humphrey (ed.), Rare and endangered biota of Florida. Vol. I. Mammals. University Press of Florida. Gainesville, Florida.

Baker, E., B. W. Price, S. D. Rycroft, J. Hill, and V. S. Smith. 2015. BioAcoustica: a free and open repository and analysis platform for bioacoustics. Database. 2015. bav054

Baker, E., and S. Vincent. 2019. A deafening silence: a lack of data and reproducibility in published bioacoustics research? Biodiversity Data Journal 7: e36783.

Florida Fish and Wildlife Conservation Commission (2018); Florida Bonneted Bat: Eumops floridanus: myfwc.com/wildlifehabitats/imperiled/profiles/mammals/florida-bonneted-bat

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

The IUCN 2018. Red List of Threatened Species. Version 2017-3. www.iucnredlist.org;. Downloaded on June 2, 2018

Timm, R. M., and H. H. Genoways. 2004. The Florida bonneted bat, Eumops floridanus (Chiroptera: Molossidae): distribution, morphometrics, systematics, and ecology. Journal of Mammalogy 85:852-865.