LASIURINE BATS IN NOVA SCOTIA

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presented hereinclude 11, 25, and 29 for Silver-haired, Hoary, and Red bats, respectively,of which 31 are previously unpublished.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.

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Age composition of some vespertilionid bats as determined by dental annuli

Canadian Journal of Zoology ◽

10.1139/z78-049 ◽

1978 ◽

Vol 56 (2) ◽

pp. 355-358 ◽

Cited By ~ 3

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.

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Echolocation Survey of the Distribution of the Hawaiian Hoary Bat (Lasiurus cinereus semotus) on the Island of Kaua'i

Journal of Mammalogy ◽

10.2307/1381533 ◽

1989 ◽

Vol 70 (2) ◽

pp. 424-426 ◽

Cited By ~ 5

Author(s):

J. H. Fullard

Keyword(s):

Lasiurus Cinereus ◽

Hoary Bat ◽

Lasiurus Cinereus Semotus

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

Canadian Journal of Zoology ◽

10.1139/z94-107 ◽

1994 ◽

Vol 72 (5) ◽

pp. 791-794 ◽

Cited By ~ 2

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.

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

Canadian Journal of Zoology ◽

10.1139/z85-371 ◽

1985 ◽

Vol 63 (11) ◽

pp. 2507-2515 ◽

Cited By ~ 87

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.

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