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Showing 1 to 20 of 67 for “"Myotis"”.
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Day-roosting Social Ecology of the Northern Long-eared Bat (Myotis septentrionalis) and the Endangered Indiana Bat (Myotis sodalis)
Day-roost use by northern long-eared bat (Myotis septentrionalis) maternity colonies on the Fort Knox military reservation, Kentucky, USA, resulted in formation of non-random networks of roosts that exhibited a trend toward centralization. Centralization of day-roost networks was reflected in the …
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Factors affecting the activity patterns of Myotis tricolor (Chiroptera: Vespertilionidae)
Foraging behaviour is an important component of an animal’s ecology. Increases in energetic costs associated with reproduction, should have marked effects on foraging behaviour, but may be compounded by the effects of environmental factors. I investigated the activity patterns of female M. tricolor …
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Maximum Entropy Modeling of Indiana Bat (Myotis Sodalis) Maternity Roost Habitat
<p>Since 1967, the Indiana bat (Myotis sodalis) has been on the U.S. Endangered Species list due to disruption of hibernating bats in caves, summer habitat degradation, and more recently, the onset of White-nose Syndrome. The purpose of this study is to evaluate landscape variables associated with …
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Using acoustic survey data to assess Indiana bat (Myotis sodalis) populations
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-08-01
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Effects of Temperature on Winter Energetics of Female Indiana Bats (Myotis Sodalis)
Endangered Indiana bats (Myotis sodalis) have decreased by 48% nationwide in the last 40 years. One theory to explain this decline is increasing cave temperatures in winter hibernacula. Altering cave temperatures can affect torpid bats by raising metabolism and causing more arousals, both of which …
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Classification and Processing of Communication Calls in Little Brown Bats, Myotis Lucifugus
In chapter 4, I investigated subcortical structures (i.e., thalamus and IC) involved in the processing of communication signals, using egr1 (an immediate early gene) as a molecular marker for brain activation. Three species-specific signals were included -- downward FM (DFM), courtship, and …
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Intersexual roost site selection by the little brown Myotis in Cypress Hills, Saskatchewan
… especially for species such as the little brown Myotis facing threats such as pathogen spread from White-Nose Syndrome. During summer, little brown Myotis rely on roosts to maintain populations through successful reproduction and winter preparation, including rapid development of young and fat …
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The functional organization of the auditory cortex in myotis lucifugus, an echolocating bat
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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Bat Boxes as Mitigation Tools: Factors Impacting Microclimate and Myotis sodalis Roost Selection
… monitored occupancy of resident Indiana bats (Myotis sodalis) via spotlight checks and emergence counts 2–4 times per week. Following an information theoretic modeling approach, we used hurdle models to assess the effects of design, solar treatment, and weather on occupancy and abundance. We …
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Modeling Effects of Mortality on Indiana Bat (Myotis Sodalis) Populations at Wind Energy Facilities
With the continuing development of wind energy within the range of the Indiana bat, and the anticipated deaths due to these turbines, there is an increasing need to understand the effects of this additional mortality on Indiana bat populations. This thesis describes and evaluates the potential …
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Activities Within a Myotine Bat Community With Emphasis on the Endangered Indiana Bat, Myotis Sodalis
The steady decline of the endangered Indiana bat (Myotis sodalis) and its interactions with other congeners are not adequately understood. A study area in northeast Missouri was identified during a survey in 2000 and found to host one of the largest M. sodalis maternity populations ever found, as …
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Identifying Myotis Species Using Geometric Morphometrics and its Implications for the Fossil Record and Conservation
<p>Dentaries of the 6 species of <em>Myotis </em>that occur in the eastern United States were analyzed using landmark-based geometric morphometrics. The species could be distinguished with a high degree of accuracy. Evidence was found of a phylogenetic signal in the morphology of the Neotropical …
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Community ecology of bats in southern lower Michigan, with emphasis on roost selection by myotis
… the roosting niche of three sympatric species of Myotis (little brown bat, M. lucifugus; northern bat, M. septentrionalis; and Indiana bat, M. sodalis) and examined changes in composition of the entire bat community in southern Lower Michigan over long periods. Little brown bats roosted in …
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Ambient Temperature Effects on Metabolism and Body Composition in Torpid Bats (Myotis Lucifugus and Pipistrellus Subflavus)
Recent declines in Indiana bat (Myotis sodalis) populations have been well documented but unexplained. It is unclear if declines are caused by exposure to and accretion of environmental contaminants, the loss of summer roosting habitat, changes in cave microclimate, or other detrimental factors. An …
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A Dietary Study of big brown (Eptesicus fuscus) and northern bats (Myotis septentrionalis) in Western Kentucky
… regarding the dietary habits of northern (<em>Myotis septentrionalis</em>) and big brown bats (<em>Eptesicus fuscus</em>) in Kentucky. The objective of this study was to determine the prey items consumed by both species at three sites in western Kentucky. Totals of 103 fecal pellet samples from …
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Roost-Site Selection of Bats in Northeast Missouri With Emphasis on the Endangered Indiana Bat (Myotis Sodalis)
… roosting ecology of the endangered Indiana bat, Myotis sodalis, at Deer Ridge Conservation Area (DRCA) in northeast Missouri from May through August 2001-2002. Due to the similarities in roost-site characteristics of forest-dwelling species of bat, and potential for niche-overlap, I also …
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Arousal patterns, fungal loads, and wing damage in a surviving population of little brown bats (Myotis lucifugus)
<p>Little brown bats (<em>Myotis lucifugus</em>) at Tippy Dam in Michigan have shown resilience to white-nose syndrome (WNS), which is caused by the fungus Pseudogymnoascus destructans. This study evaluated the impact of environment (temperature and moisture), pathogen virulence, and host …
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"""White Noise"" Non-Linear Analysis of Inferior Colliculus Neural Responses in the Little Brown Bat, Myotis Lucifugus"
… of auditory neurons from a species of FM bat, Myotis lucifugus. The consistently short (1-5 ms) duration of echolocation calls emitted by the little brown bat, Myotis lucifugus, permitted approximating the sounds heard during hunting with a train of short, constant-duration pulses. In contrast …
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Information Processing in the Auditory Thalamus of the Echolocating Bat, Myotis Lucifugus: Implications for Fluttering Target Detection
… auditory cortex (AC) of the echolocating bat, Myotis lucifugus. Specifically, the tonic discharge patterns present in the IC are transformed into phasic patterns in the AC. There is also a degradation in the capacity for AC neurons to entrain their discharges to the temporal waveform of …
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