Seasonal dynamics of the bat stomach worm, Longibucca lasiura (Nematoda: Rhabditoidea), in Alberta

1994 ◽  
Vol 72 (5) ◽  
pp. 791-794 ◽  
Author(s):  
Lena N. Measures
Keyword(s):  
Boreal Forest ◽  
Sample Size ◽  
Seasonal Dynamics ◽  
Eptesicus Fuscus ◽  
Myotis Lucifugus ◽  
Lasiurus Cinereus ◽  
Mean Intensity ◽  
Ecological Zones ◽  
Aspen Parkland ◽  
Lasionycteris Noctivagans

One hundred and sixty-nine bats belonging to 6 different species and collected from 4 ecological zones (aspen parkland, boreal forest, grassland, and montane) in Alberta, Canada, during 1988 and 1989 were examined for helminths. Forty bats were infected with the stomach nematode Longibucca lasiura McIntosh and Chitwood, 1934. Sample size, prevalence, and mean intensity (with range in parentheses) of L. lasiura for the 6 species of bat were as follows: Myotis lucifugus, N = 130, 27%, 39 (1–121); Myotis ciliolabrum, N = 10, 10%, 1; Eptesicus fuscus, N = 6, 33%, 12 (2–22); Lasionycteris noctivagans, N = 2, 100%, 22 (5–39). Myotis evotis (N = 9) and Lasiurus cinereus (N = 3) were not infected. Longibucca lasiura was found in bats from all ecological zones except the boreal forest. This parasite was found in bats active during summer (June to August) and in hibernating M. lucifugus collected in September and April.

Bats of Kootenay, Glacier, and Mount Revelstoke national parks in Canada: identification by echolocation calls, distribution, and biology

1983 ◽  
Vol 61 (11) ◽  
pp. 2503-2508 ◽  
Author(s):  
M. B. Fenton ◽  
H. G. Merriam ◽  
G. L. Holroyd
Keyword(s):  
British Columbia ◽  
National Parks ◽  
National Park ◽  
Myotis Lucifugus ◽  
Glacier National Park ◽  
Lasiurus Cinereus ◽  
Echolocation Calls ◽  
Bat Activity ◽  
Lasionycteris Noctivagans ◽  
The Town

We studied the behaviour, echolocation calls, and distribution of bats in Kootenay, Glacier, and Mount Revelstoke national parks in British Columbia, Canada. Presented here are keys for identification of nine species of bats by their echolocation calls as rendered by two different bat-detecting systems. The species involved include Myotis lucifugus, M. evotis, M. volans, M. septentrionalis, M. californicus, Lasionycteris noctivagans, Eptesicus fuscus, Lasiurus cinereus, and L. borealis. The distribution of these species within the three parks was assessed by capturing bats in traps and mist nets and by monitoring of their echolocation calls. Most of the species exploited concentrations of insects around spotlights, providing convenient foci of activity for assessing distribution. Although most species of Myotis were commonly encountered away from the lights, Lasiurus cinereus in Kootenay National Park was only regularly encountered feeding on insects at lights. This species was not detected in Glacier National Park, and although we regularly encountered it in the town of Revelstoke, it was rarely encountered in Mount Revelstoke National Park. Another focus of bat activity was small pools in cedar forest in Mount Revelstoke National Park. This involved high levels of Myotis spp. activity at dusk as the bats came to the pools to drink.

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.

Food habits of bats from Indiana

1972 ◽  
Vol 50 (6) ◽  
pp. 877-883 ◽  
Author(s):  
John O. Whitaker Jr.
Keyword(s):  
Food Habits ◽  
Eptesicus Fuscus ◽  
Myotis Lucifugus ◽  
Lasiurus Borealis ◽  
Pipistrellus Subflavus ◽  
Lasionycteris Noctivagans

The stomachs of 3 Myotis keenii (Merriam), 16 M. lucifugus (Le Conte), 4 M. sodalis (Miller and Allen), 2 Lasionycteris noctivagans (Le Conte), 23 Pipistrellus subflavus (Cuvier), 184 Eptesicus fuscus (Beauvois), 128 Lasiurus borealis (Müller), 3 L. cinereus (Beauvois), and 2 Nycticeius humeralis Rafinesque were examined. The four most common bats of Indiana used as their most common foods, different major groups of insects, beetles in the case of Eptesicus, moths in Lasiurus borealis and Myotis lucifugus and leaf hoppers in Pipistrellus. Eptesicus fuscus did not appear to feed in winter. Weaning in that species appeared to occur about July 1.

Studies on the parasites of Chiroptera. III. Helminths from various bat species collected in British Columbia

1973 ◽  
Vol 51 (6) ◽  
pp. 633-636 ◽  
Author(s):  
W. A. Webster ◽  
G. A. Casey
Keyword(s):  
British Columbia ◽  
Eptesicus Fuscus ◽  
Gastrointestinal Parasites ◽  
Lasiurus Cinereus ◽  
Lasionycteris Noctivagans

Eighty-two bats comprising the genera Eptesicus, Lasionycteris, Lasiurus, Myotis, and Plecotus collected in British Columbia were examined for the presence of gastrointestinal parasites. Helminths from 24 specimens of Eptesicus fuscus, 11 of Lasionycteris noctivagans, 1 of Lasiurus cinereus, 7 of Myotis californicus, 31 of M. lucifugus, and 3 of M. volans longicrus are listed. Some aspects of the parasitism encountered are discussed.

scholarly journals Hepatic lipid signatures of little brown bats (Myotis lucifugus) and big brown bats (Eptesicus fuscus) at early stages of white-nose syndrome

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Evan L. Pannkuk ◽  
Nicole A. S.-Y. Dorville ◽  
Yvonne A. Dzal ◽  
Quinn E. Fletcher ◽  
Kaleigh J. O. Norquay ◽  
...  
Keyword(s):  
Lipid Metabolism ◽  
Fatty Acid Distribution ◽  
Eptesicus Fuscus ◽  
Myotis Lucifugus ◽  
Pseudogymnoascus Destructans ◽  
Hepatic Lipid ◽  
Early Stages ◽  
White Nose Syndrome ◽  
Big Brown Bats ◽  
Little Brown Bats

AbstractWhite-nose syndrome (WNS) is an emergent wildlife fungal disease of cave-dwelling, hibernating bats that has led to unprecedented mortalities throughout North America. A primary factor in WNS-associated bat mortality includes increased arousals from torpor and premature fat depletion during winter months. Details of species and sex-specific changes in lipid metabolism during WNS are poorly understood and may play an important role in the pathophysiology of the disease. Given the likely role of fat metabolism in WNS and the fact that the liver plays a crucial role in fatty acid distribution and lipid storage, we assessed hepatic lipid signatures of little brown bats (Myotis lucifugus) and big brown bats (Eptesicus fuscus) at an early stage of infection with the etiological agent, Pseudogymnoascus destructans (Pd). Differences in lipid profiles were detected at the species and sex level in the sham-inoculated treatment, most strikingly in higher hepatic triacylglyceride (TG) levels in E. fuscus females compared to males. Interestingly, several dominant TGs (storage lipids) decreased dramatically after Pd infection in both female M. lucifugus and E. fuscus. Increases in hepatic glycerophospholipid (structural lipid) levels were only observed in M. lucifugus, including two phosphatidylcholines (PC [32:1], PC [42:6]) and one phosphatidylglycerol (PG [34:1]). These results suggest that even at early stages of WNS, changes in hepatic lipid mobilization may occur and be species and sex specific. As pre-hibernation lipid reserves may aid in bat persistence and survival during WNS, these early perturbations to lipid metabolism could have important implications for management responses that aid in pre-hibernation fat storage.

Long- versus short-range foraging strategies of hoary (Lasiurus cinereus) and silver-haired (Lasionycteris noctivagans) bats and the consequences for prey selection

1985 ◽  
Vol 63 (11) ◽  
pp. 2507-2515 ◽  
Author(s):  
Robert M. R. Barclay
Keyword(s):  
Short Range ◽  
Prey Availability ◽  
Prey Selection ◽  
Foraging Strategy ◽  
Foraging Strategies ◽  
Lasiurus Cinereus ◽  
Echolocation Calls ◽  
Straight Line ◽  
Lasionycteris Noctivagans ◽  
Selection Of

Habitat use, temporal activity, foraging behaviour, and prey selection of hoary bats (Lasiurus cinereus) and silver-haired bats (Lasionycteris noctivagans) were studied at Delta Marsh, Manitoba. Bat activity was assessed by monitoring echolocation calls with ultrasonic detectors. Prey availability was determined using sticky and Malaise traps and dietary information was obtained from fecal analysis. Both species were active all night and foraged primarily in the lee of a narrow forested ridge. Lasionycteris noctivagans foraged in a manner that indicates that it detects and pursues prey over short distances. These bats fly slowly, are highly manoeuverable, and were commonly observed feeding on swarms of insects in small clearings. They use echolocation calls that support the notion of a short-range foraging strategy and feed opportunistically on whatever insects are available. Lasiurus cinereus, on the other hand, uses a long-range prey detection and pursuit foraging strategy. They fly rapidly along straight line paths in open areas and use echolocation calls designed to detect insects at a distance. The diet consists primarily of large insects (moths, beetles, and dragonflies), but the bats nonetheless feed opportunistically. The foraging strategy likely restricts the availability and profitability of small insects as prey.

scholarly journals Mortality of Little Brown Bats, Myotis lucifugus, in a Rodent Trap in the Boreal Forest

2005 ◽  
Vol 119 (4) ◽  
pp. 589 ◽  
Author(s):  
Thomas S. Jung ◽  
Brian G. Slough
Keyword(s):  
Boreal Forest ◽  
Population Size ◽  
Myotis Lucifugus ◽  
Size And Structure ◽  
Little Brown Bats

Accidental mortality of bats is not often observed or reported in the literature. It may, however, have an impact on population size and structure. We report an observation of 53 Little Brown Bats (Myotis lucifugus) being trapped and drowned in a homemade rodent trap at an abandoned cabin in southern Yukon. Traps of this design may be commonly used in the boreal forest. We recommend not using such traps in cabins that are used by colonies of bats.

The potential for vocal signatures in the calls of young hoary bats (Lasiurus cinereus)

1988 ◽  
Vol 66 (9) ◽  
pp. 1982-1985 ◽  
Author(s):  
Catherine E. Koehler ◽  
Robert M. R. Barclay
Keyword(s):  
Adult Female ◽  
High Speed ◽  
Auditory Discrimination ◽  
Myotis Lucifugus ◽  
Recording Equipment ◽  
Colonial Species ◽  
Lasiurus Cinereus ◽  
Minimum Frequency ◽  
Delta Marsh ◽  
Vocal Signatures

We examined calls produced by the solitary bat Lasiurus cinereus during mother–young interactions and considered the potential for vocal signatures in the calls of the young. Families of bats were observed in the field at Delta Marsh, Manitoba, and vocalizations were recorded using high-speed ultrasonic recording equipment. Adult female bats and young vocalize primarily during reunions. Variation in duration and maximum and minimum frequency of the calls of young was calculated. The degree of call variation within L. cinereus family units was relatively high and calls produced by different young could not be differentiated. These observations suggest that a vocal signature, which is present in some colonial species of bats such as Myotis lucifugus and which allows auditory discrimination between calling young, is less likely to occur in L. cinereus.

Distribution in Manitoba of Mustela frenata longicauda Bonaparte, the long-tailed weasel, and the interrelation of distribution and habitat selection in Manitoba, Saskatchewan, and Alberta

1981 ◽  
Vol 59 (6) ◽  
pp. 1036-1039 ◽  
Author(s):  
R. Lloyd Gamble
Keyword(s):  
Habitat Selection ◽  
Boreal Forest ◽  
Site Selection ◽  
Museum Specimens ◽  
Free Standing ◽  
Canadian Prairies ◽  
Standing Water ◽  
Close Proximity ◽  
Aspen Parkland

The distribution of Mustela frenata longicauda was ascertained for Manitoba, Saskatchewan, and Alberta by examination of 91 labelled museum specimens and 186 carcasses provided by trappers from Manitoba. Collection records on site selection and distribution reaffirm the author's contention that M. frenata prefers late seral stages or ecotones in close proximity to free standing water. The transition between aspen parkland and the boreal forest or taiga is the northernmost distribution of this species in the Canadian prairies.

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