The effect of reproductive condition on the foraging behavior of female hoary bats, Lasiurus cinereus

1989 ◽  
Vol 24 (1) ◽  
pp. 31-37 ◽  
Author(s):  
R. M. R. Barclay
Keyword(s):  
Foraging Behavior ◽  
Reproductive Condition ◽  
Lasiurus Cinereus ◽  
Hoary Bats

Acoustic Evidence of Hoary Bats (Lasiurus Cinereus) on Newfoundland, Canada

2020 ◽  
Vol 27 (3) ◽  
pp. 567
Author(s):  
Darrian P. Washinger ◽  
Raymond Reid ◽  
Erin E. Fraser
Keyword(s):  
Lasiurus Cinereus ◽  
Hoary Bats

Flight muscle carnitine palmitoyl transferase activity varies with substrate chain length and unsaturation in the hoary bat (Lasiurus cinereus)

2014 ◽  
Vol 92 (2) ◽  
pp. 173-176 ◽  
Author(s):  
E.R. Price ◽  
L.P. McGuire ◽  
M.B. Fenton ◽  
C.G. Guglielmo
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Substrate Preference ◽  
Acid Oxidation ◽  
Transferase Activity ◽  
Carnitine Palmitoyl Transferase ◽  
Lasiurus Cinereus ◽  
Hoary Bats

Fat is an important fuel for bats to support high metabolic rates in extended periods of flight. The fatty acid composition of adipose stores could affect whole animal exercise performance, as fatty acids vary in rates of mobilization and oxidation. A key step in the fatty acid oxidation pathway is transporting fatty acids from the cytosol into mitochondria, mediated by the enzyme carnitine palmitoyl transferase (CPT). Therefore, understanding the substrate preference patterns of CPT in bats is important for interpreting the consequences of adipose fatty acid profiles. We measured CPT activity with eight different fatty acyl CoA substrates (16:0, 16:1ω7, 18:0, 18:1ω9, 18:2ω6, 18:3ω3, 20:4ω6, and 22:6ω3) in the pectoralis muscle of migrating and nonmigrating hoary bats (Lasiurus cinereus (Beauvois, 1796)). The pattern of substrate preference was similar to the patterns previously reported for birds and rats and was not affected by migration. Generally, activity increased with the number of double bonds and was higher with 16 carbon fatty acids compared with 18 carbon fatty acids. Given the observed substrate variation in CPT activity, there is no evidence to suggest that recently reported seasonal changes in the adipose fatty acid composition of migrating hoary bats would lead to increased lipid oxidation rate, and may instead be a consequence of seasonal shifts in diet.

scholarly journals Inconspicuous echolocation in hoary bats ( Lasiurus cinereus )

2018 ◽  
Vol 285 (1878) ◽  
pp. 20180441 ◽  
Author(s):  
Aaron J. Corcoran ◽  
Theodore J. Weller
Keyword(s):  
Model Organisms ◽  
Mating Season ◽  
Sensory Stimuli ◽  
Sound Energy ◽  
Lasiurus Cinereus ◽  
Echolocation Calls ◽  
Call Type ◽  
Acoustic Modelling ◽  
Infrared Cameras ◽  
Hoary Bats

Echolocation allows bats to occupy diverse nocturnal niches. Bats almost always use echolocation, even when other sensory stimuli are available to guide navigation. Here, using arrays of calibrated infrared cameras and ultrasonic microphones, we demonstrate that hoary bats ( Lasiurus cinereus ) use previously unknown echolocation behaviours that challenge our current understanding of echolocation. We describe a novel call type (‘micro’ calls) that has three orders of magnitude less sound energy than other bat calls used in open habitats. We also document bats flying close to microphones (less than 3 m) without producing detectable echolocation calls. Acoustic modelling indicates that bats are not producing calls that exceed 70–75 dB at 0.1 m, a level that would have little or no known use for a bat flying in the open at speeds exceeding 7 m s −1 . This indicates that hoary bats sometimes fly without echolocation. We speculate that bats reduce echolocation output to avoid eavesdropping by conspecifics during the mating season. These findings might partly explain why tens of thousands of hoary bats are killed by wind turbines each year. They also challenge the long-standing assumption that bats—model organisms for sensory specialization—are reliant on sonar for nocturnal navigation.

Observations of Summer Roosting and Foraging Behavior of a Hoary Bat (Lasiurus cinereus) in Southern New Hampshire

2009 ◽  
Vol 16 (1) ◽  
pp. 148-152 ◽  
Author(s):  
Jacques Pierre Veilleux ◽  
Paul R. Moosman ◽  
D. Scott Reynolds ◽  
Kirk E. LaGory ◽  
Leroy J. Walston
Keyword(s):  
Foraging Behavior ◽  
New Hampshire ◽  
Lasiurus Cinereus ◽  
Hoary Bat

scholarly journals Do you hear what I see? Vocalization relative to visual detection rates of Hawaiian hoary bats (Lasiurus cinereus semotus )

2017 ◽  
Vol 7 (17) ◽  
pp. 6669-6679 ◽  
Author(s):  
Paulo. Marcos Gorresen ◽  
Paul M. Cryan ◽  
Kristina Montoya-Aiona ◽  
Frank J. Bonaccorso
Keyword(s):  
Visual Detection ◽  
Detection Rates ◽  
Lasiurus Cinereus ◽  
Lasiurus Cinereus Semotus ◽  
Hoary Bats

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.

Challenging hibernation limits of hoary bats: the southernmost record of Lasiurus cinereus hibernating in North America

2020 ◽  
Author(s):  
Ganesh Marín ◽  
Daniel Ramos-H ◽  
Daniela Cafaggi ◽  
Cárol Sierra-Durán ◽  
Alejandra Gallegos ◽  
...  
Keyword(s):  
North America ◽  
Lasiurus Cinereus ◽  
Hoary Bats
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