scholarly journals Resource Partitioning by Two Species of Vespertilionid Bats (Lasiurus cinereus and Lasiurus borealis) Feeding around Street Lights

1996 ◽  
Vol 77 (2) ◽  
pp. 325-334 ◽  
Author(s):  
M. B. C. Hickey ◽  
L. Acharya ◽  
S. Pennington
Keyword(s):  
Resource Partitioning ◽  
Lasiurus Borealis ◽  
Lasiurus Cinereus ◽  
Vespertilionid Bats

Age composition of some vespertilionid bats as determined by dental annuli

1978 ◽  
Vol 56 (2) ◽  
pp. 355-358 ◽  
Author(s):  
David B. Schowalter ◽  
Lawrence D. Harder ◽  
Bruce H. Treichel
Keyword(s):  
Age Structure ◽  
Myotis Lucifugus ◽  
Age Composition ◽  
Lasiurus Borealis ◽  
Lasiurus Cinereus ◽  
Lasionycteris Noctivagans ◽  
Apparent Age ◽  
Vespertilionid Bats ◽  
Incremental Lines

Determination of age of several species of vespertilionid bats by counting incremental lines in dentine, cementum, and peridontal bone is described. The technique was most effective for aging Eptesicus fuscus and Lasionycteris noctivagans and less so for Myotis lucifugus. Incremental lines in specimens of Lasiurus cinereus and Lasiurus borealis were clearly defined, while those in a Myotis californicus were not. Longevity of E. fuscus and longevity and apparent age structure of M. lucifugus agree with the findings of published banding studies.

Echolocation behaviour of vespertilionid bats (Lasiurus cinereus and Lasiurus borealis) attacking airborne targets including arctiid moths

1992 ◽  
Vol 70 (7) ◽  
pp. 1292-1298 ◽  
Author(s):  
Lalita Acharya ◽  
M. Brock Fenton
Keyword(s):  
Threshold Value ◽  
Rapid Rate ◽  
Echolocation Call ◽  
Lasiurus Borealis ◽  
Lasiurus Cinereus ◽  
Hunting Behaviour ◽  
The Mean ◽  
Aposematic Signals ◽  
Vespertilionid Bats

We observed the echolocation and hunting behaviour of Lasiurus borealis and Lasiurus cinereus from May to August of 1989, 1990, and 1991 to assess the role of feeding buzzes in the behaviour of echolocating bats attacking airborne prey. Feeding buzzes consist of short echolocation pulses produced at a rapid rate just before contact between a flying bat and its prey. The hypothesis that the duration of the feeding buzz reflects the size of the attacked prey was not supported by the data. The mean lengths of silent periods between the end of the feeding buzz and the next echolocation call were significantly longer after successful attacks than after unsuccessful attacks. There was, however, no threshold value unambiguously separating successful from unsuccessful attacks in either species. The responses of bats to tossed pebbles and to some insects indicated that during some feeding buzzes L. borealis and L. cinereus judged the nature and range of prey being attacked. Attacks by free-flying L. borealis on muted arctiid moths (Hypoprepia fucosa), combined with the rejection of these moths as food by captive bats, suggest that in this setting the clicks of these moths are aposematic signals, warning the bats of the moths' bad taste.

scholarly journals LASIURINE BATS IN NOVA SCOTIA

2011 ◽  
Vol 46 (2) ◽  
Author(s):  
Zoe Lucas ◽  
Andrew Hebda
Keyword(s):  
Nova Scotia ◽  
Autumn Migration ◽  
Migration Period ◽  
Lasiurus Borealis ◽  
Lasiurus Cinereus ◽  
Hoary Bat ◽  
Lasionycteris Noctivagans

Three lasiurine bat species, Lasionycteris noctivagans (Silver-hairedBat), Lasiurus cinereus (Hoary Bat), and Lasiurus borealis (Red Bat),have been recorded in inland, coastal, and offshore locations as of NovaScotia. Although these records occurred over a century, 70% are from themid-1990s or later, largely because of research in mainland Nova Scotia,and increased interest on Sable Island. The 65 records presented hereinclude 11, 25, and 29 for Silver-haired, Hoary, and Red bats, respectively,of which 31 are previously unpublished. Seventy-seven percent of recordsare from August through November, the autumn migration period forlasiurine bats. These observations suggest that most autumn occurrencesof these species in Nova Scotia are not extralimital, but are part of normalmigratory patterns in the province.

scholarly journals Structure and Reproductive Patterns in the Summertime Forest-Bat Community of Southeastern Texas

2014 ◽  
Vol 5 (2) ◽  
pp. 413-421 ◽  
Author(s):  
Anica Debelica-Lee ◽  
Kenneth T. Wilkins
Keyword(s):  
Coastal Plain ◽  
Southeastern United States ◽  
Gulf Coastal Plain ◽  
Reproductive Condition ◽  
Tadarida Brasiliensis ◽  
Lasiurus Borealis ◽  
Lasiurus Cinereus ◽  
Reproductive Patterns ◽  
Southeastern Myotis ◽  
Myotis Austroriparius

Abstract Forests of eastern Texas represent the westernmost extent of the southern pine forests and part of the pine belt of the forested Gulf coastal plain. Bat community assemblages in similar forests throughout southeastern United States have been documented in various studies, but only scant data are available for Texas. The purpose of this study was to characterize the assemblage and investigate reproductive patterns of the summer bat community in the austroriparian forest of eastern Texas. Using mist nets, we captured bats during summers 2009–2011 and recorded species, gender, age and reproductive condition. We captured 382 bats of eight species: Seminole Lasiurus seminolus (n  =  163), evening Nycticeius humeralis (n  =  86), big brown Eptesicus fuscus (n  =  57), eastern red Lasiurus borealis (n  =  31), southeastern myotis Myotis austroriparius (n  =  21), tri-colored Perimyotis subflavus (n  =  19), Mexican free-tailed Tadarida brasiliensis (n  =  4), and hoary Lasiurus cinereus (n  =  1) bats. Analysis of reproductive data suggests that three of these species (big brown, evening, and Seminole bats) may be following a reproductive strategy—extended seasonal monoestry (births of single litters spanning a particular season)—different than their previously reported pattern of synchronous monoestry.

Cestodes of the genus Hymenolepis Weinland, 1858 (sensu lato) from bats in North America and Hawaii

1975 ◽  
Vol 53 (11) ◽  
pp. 1537-1551 ◽  
Author(s):  
R. L. Rausch
Keyword(s):  
North America ◽  
North American ◽  
The Other ◽  
Lasiurus Cinereus ◽  
Hoary Bat ◽  
Vespertilionid Bats ◽  
Lasiurus Cinereus Semotus

Hymenolepidid cestodes obtained through the examination of 539 vespertilionid bats representing 15 species and five genera, collected in three regions of North America and on the Island of Hawaii, were studied. Three species of the genus Hymenolepis Weinland, 1858 sensu lato, previously known from nearctic Chiroptera, are redescribed: H. christensoni Macy, 1931, H. roudabushi Macy and Rausch, 1946, and H. gertschi Macy, 1947. A fourth, H. lasionycteridis sp. nov., recorded from bats of eight species in North America and Hawaii, is described and distinguished morphologically from the other species of Hymenolepis s.l. characterized in part by the presence of an armed rostellum and occurring in bats. The presence of this cestode in the Hawaiian hoary bat, Lasiurus cinereus semotus (Allen), indicates that at least some of the progenitors of the population on the Island of Hawaii were migrants of western North American origin. The zoogeography of cestodes in bats is briefly discussed.

Habitat use by foraging insectivorous bats

1987 ◽  
Vol 65 (2) ◽  
pp. 284-288 ◽  
Author(s):  
C. L. Furlonger ◽  
H. J. Dewar ◽  
M. B. Fenton
Keyword(s):  
Habitat Use ◽  
Rural Areas ◽  
Urban Areas ◽  
Foraging Activity ◽  
Insectivorous Bats ◽  
Widespread Species ◽  
Lasiurus Borealis ◽  
Lasiurus Cinereus ◽  
Echolocation Calls ◽  
Study Sites

We monitored echolocation calls to measure the activity of insectivorous bats at study sites in southwestern Ontario during the summer of 1985, relying on feeding buzzes to identify foraging activity. Eptesicus fuscus was the most common and widespread species in the area, while Lasiurus cinereus and Lasiurus borealis were widespread. Species in the genus Myotis were more restricted in their distribution, being more common in an area with potential hibernacula. None of the species foraged exclusively in one habitat and all species exploited concentrations of insects around lights. Only E. fuscus made significant use of lights as foraging sites in urban areas while in town and rural areas all of the species foraged around lights.

scholarly journals Potential foraging niche release in insectivorous bat species relatively unaffected by white-nose syndrome?

2020 ◽  
Vol 98 (10) ◽  
pp. 667-680
Author(s):  
Heather W. Mayberry ◽  
M. Reese McMillan ◽  
A. Vikram Chochinov ◽  
Joshua C. Hinds ◽  
John M. Ratcliffe
Keyword(s):  
Common Species ◽  
Myotis Lucifugus ◽  
Lasiurus Borealis ◽  
Lasiurus Cinereus ◽  
Acoustic Data ◽  
White Nose Syndrome ◽  
Myotis Myotis ◽  
Foraging Niche ◽  
Myotis Leibii ◽  
Biomechanical Constraints

White-nose syndrome (WNS) has rendered four of Ontario’s species endangered, while leaving the other four species relatively unaffected. The causes and extent of the declines have been widely studied. The influence on remaining bat species has not. Comparing acoustic data recorded ∼10 years apart, we evaluated how species in southeastern Ontario, Canada, use different foraging habitats pre- and post-WNS detection. We observed activity declines in now-endangered species over open fields (small-footed myotis, Myotis leibii (Audubon and Bachman, 1842); little brown bat, Myotis lucifugus (Le Conte, 1831); northern myotis, Myotis septentrionalis (Trouessart, 1897); tricolored bat, Perimyotis subflavus (F. Cuvier, 1832)) and speculate that the reduction of the once most common species (M. lucifugus) may have resulted in other species searching for prey in habitat once dominated by M. lucifugus. That is, these changes may have allowed greater presence in open field and clutter or edge environments by the big brown bat (Eptesicus fuscus (Palisot de Beauvois, 1796)) and three migratory species (silver-haired bat, Lasionycteris noctivagans (Le Conte, 1831); red bat, Lasiurus borealis (Müller, 1776); hoary bat, Lasiurus cinereus (Palisot de Beauvois, 1796)). However, our results also suggest that (i) while the decline of most resident bat species due to WNS may have relaxed competition for relatively unaffected species in some, but not all habitats, that (ii) sensory and biomechanical constraints may limit prey exploitation by these less-affected bat species in these habitats.

Energetic consequences of flight speeds of foraging red and hoary bats (Lasiurus borealis and Lasiurus cinereus; Chiroptera: Vespertilionidae)

1995 ◽  
Vol 198 (11) ◽  
pp. 2245-2251 ◽  
Author(s):  
H Salcedo ◽  
M Fenton ◽  
M Hickey ◽  
R Blake
Keyword(s):  
Doppler Radar ◽  
Prey Size ◽  
Flight Performance ◽  
Lasiurus Borealis ◽  
Lasiurus Cinereus ◽  
Minimum Power ◽  
Maximum Range ◽  
Active Pursuit ◽  
Capture Rates ◽  
Hoary Bats

We used Doppler radar readings of the flight speeds of foraging, lactating female Lasiurus borealis (N=826) and Lasiurus cinereus (N=544) to test morphologically based predictions about their flight performance. Both species flew at speeds (V=6.7 and 7.7 m s-1, respectively) that differed significantly from predicted minimum power speed (Vmp; 4.0 and 5.08 m s-1, respectively) or predicted maximum range speed (Vmr; 5.25 and 6.69 m s-1, respectively), perhaps reflecting the active pursuit of moths performing evasive manoeuvres. Estimates of costs of flight and lactation are combined with data on prey size together with encounter and capture rates to illustrate the energetic benefits accruing to these species when they forage in concentrations of insects.

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