Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Michael J. O'Farrell"'
Publikováno v:
Journal of Mammalogy. 87:1145-1153
We used a combination of capture and acoustic monitoring equipment to examine use of habitat by bats in a desert riparian community in southern Nevada. Each habitat type (riparian marsh, mesquite bosque, riparian woodland, and riparian shrubland) was
Publikováno v:
The Southwestern Naturalist. 49:514-518
The first record of western yellow bat (Lasiurus xanthinus) for Nevada was found at the Moapa Valley National Wildlife Refuge, Muddy River, Clark County in January 1999. Year-round residence and an active breeding colony were verified through 2000. R
Publikováno v:
Acoustics Research Letters Online. 2:43-48
Infrared cameras and ultrasonic microphones were used to record big brown bats (Eptesicus fuscus) flying in natural conditions at night while they hunted for insects. As expected, bats avoided obstacles while flying through vegetation and intercepted
Autor:
Bruce W. Miller, Michael J. O'Farrell
Publikováno v:
Biotropica. 31:507-516
An ongoing study is being conducted to test the efficacy of the Anabat II detector and analysis system in obtaining reliable vocal signatures for the identification of non-phyllostomid species of bats. We sampled a wide range of elevations and associ
Publikováno v:
Journal of Mammalogy. 80:24-30
To evaluate the efficacy of the Anabat II ultrasonic detector and analysis system for use as a tool for conducting inventories, we compared results of acoustic versus capture techniques in the southwestern United States. We sampled 57 locations using
Publikováno v:
Journal of Mammalogy. 80:11-23
A variety of ultrasonic (bat) detectors have been used over the past 3 decades to identify free-flying bats. Analyses of recorded echolocation calls were slow and typically restricted to few calls and at a resolution obscuring details of call structu
Publikováno v:
Journal of Mammalogy. 80:297-302
Barclay (1999) criticized the qualitative approach for acoustic identification of species of bats (O'Farrell et al., 1999) on the basis of intraspecific variation due to geography, habitat, and species-assemblage factors. However, variations describe
Autor:
Bruce W. Miller, Michael J. O'Farrell
Publikováno v:
Journal of Mammalogy. 78:954-963
In northwestern Belize, two emballonurids (Rhynchonycteris naso and Saccopteryx bili neata) and three monnoopids (Pteronotus pamellii. P. davyi, and P. personatus) were examined acoustically with the Anabat II bat detector and associated analysis s
Autor:
John S. Scheibe, Michael J. O'Farrell
Publikováno v:
Journal of Mammalogy. 76:368-375
We evaluate several hypotheses concerning differential use of habitats by males and females based on data from live-trapping Peromyscus truei for 1 year. Multivariate statistical techniques revealed differential use of habitats by males and females d
Autor:
Theda M. O'Farrell, William A. Clark, Tracy Y. Goodlett, Stephen M. Juarez, Michael J. O'Farrell, Fenton R. Kay, F. H. Emmerson
Publikováno v:
Journal of Mammalogy. 75:692-699
Two types of mesh live traps were better than Sherman traps for capturing rodents in high and low deserts, Mediterranean grassland and shrubland, and riparian woodland and scrub habitats ( P < 0.001). Mesh traps took more species and more individuals