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7 results for “Lasionycteris noctivagans”
Singing silver-haired bats (Lasionycteris noctivagans)
<p class="MsoNormal">Characterizing sounds produced by animals can lead to better understanding of their behavioral ecology and conservation. While considerable focus has been on signals used by bats for echolocation, there has been less emphasis on nonecholocation sounds. We describe songs (i.e., acoustic vocalizations with distinctive syllable types in series or in complex motifs) produced by silver‐haired bat (<em>Lasionycteris noctivagans</em>). Songs, characterized by a sequence (song phrase) of 3 distinct vocalization types, were confirmed by observing free‐flying, silver‐haired bats at mine hibernacula in British Columbia, Canada. The song patterns were relatively consistent with each song phrase consisting of a lead call, followed by a droplet call, and finishing with a series of multiple chirp calls. The function of the songs is unknown, however, as other bat species produce songs for mating, we propose silver‐ aired bat songs may similarly be associated with courtship or mating. Alternative functions cannot be ruled out, particularly because we recorded some songs outside of the accepted mating period. Other research has determined peak mating of silver‐haired bats occurs in fall, and spring mating has been documented. Here we additionally provide evidence of winter mating in British Columbia. The proportion of silver‐haired bat songs recorded relative to echolocation recordings varied across locations and seasons. While we recorded songs in all months of the year, more than half of the songs were produced during winter, and 93.4% (of 1,857) were produced outside of summer months. Song production in summer could be associated with other behaviors such as learning or practice, establishing or maintaining social bonds, or male‐male competition. To provide landscape and temporal context, we summarize acoustic datasets from numerous locations in western North America where recordings were made between 2005 and 2022.</p>
Singing silver-haired bats (Lasionycteris noctivagans)
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Lasionycteris noctivagans mitochondrial genomes raw data
<p>The geographic distributions of eastern and western <i>Lasionycteris noctivagans</i> populations suggest they could be geneticially isolated from each other, but this has rarely been assessed using genetic data. Here, we evaluate this possibility by sequencing the complete mitochondrial genome of four silver-haired bats from eastern and western populations. The three usable mitogenomes were closely associated with other Vespertilionid bats and the phylogenetic tree revealed the two western individuals grouping together to form their own clade. Our results support the idea that small but significant genetic differences exist between eastern and western populations of these bats.</p>
On following pages: 147 Pied Butterfly Bat (Glauconycteris superba); 148. Common Butterfly Bat (Glauconycteris argentata); 149. Bibundi Butterfly Bat (Glauconycteris egeria): 150. Abo Butterfly Bat (Glauconycteris poensis); 151. Striped Butterfly Bat (Glauconycteris alboguttata); 152. Beatrix's Butterfly Bat (Glauconycteris beatrix); 163. Curry's Butterfly Bat (Glauconycteris curryae); 154. Spotted Butterfly Bat (Glauconycteris humeralis): 155. Blackish Butterfly Bat (Glauconycteris atra); 156. Kenyan Butterfly Bat (Glauconycteris kenyacola); 157. Doria's False Serotine (Hesperoptenus doriae): 158. Tickell's False Serotine (Hesperoptenus tickell); 159. Blanford's False Serotine (Hesperoptenus blanford): 160. Large False Serotine (Hesperoptenus tomesi); 161. Gaskell's False Serotine (Hesperoptenus gaskell): 162. Great Evening Bat (/a io); 163. Harlequin Bat (Scotomanes ornatus); 164. Riippell's Broad-nosed Bat (Scoteanax rueppelli); 165. Northern Broadnosed Bat (Scotorepens sanborni); 166. Little Broad-nosed Bat (Scotorepens greyi); 167. Inland Broad-nosed Bat (Scotorepens balstoni); 168. Eastern Broad-nosed Bat (Scotorepens orion): 169. Silverhaired Bat (Lasionycteris noctivagans). in Vespertilionidae
On following pages: 147 Pied Butterfly Bat (Glauconycteris superba); 148. Common Butterfly Bat (Glauconycteris argentata); 149. Bibundi Butterfly Bat (Glauconycteris egeria): 150. Abo Butterfly Bat (Glauconycteris poensis); 151. Striped Butterfly Bat (Glauconycteris alboguttata); 152. Beatrix's Butterfly Bat (Glauconycteris beatrix); 163. Curry's Butterfly Bat (Glauconycteris curryae); 154. Spotted Butterfly Bat (Glauconycteris humeralis): 155. Blackish Butterfly Bat (Glauconycteris atra); 156. Kenyan Butterfly Bat (Glauconycteris kenyacola); 157. Doria's False Serotine (Hesperoptenus doriae): 158. Tickell's False Serotine (Hesperoptenus tickell); 159. Blanford's False Serotine (Hesperoptenus blanford): 160. Large False Serotine (Hesperoptenus tomesi); 161. Gaskell's False Serotine (Hesperoptenus gaskell): 162. Great Evening Bat (/a io); 163. Harlequin Bat (Scotomanes ornatus); 164. Riippell's Broad-nosed Bat (Scoteanax rueppelli); 165. Northern Broadnosed Bat (Scotorepens sanborni); 166. Little Broad-nosed Bat (Scotorepens greyi); 167. Inland Broad-nosed Bat (Scotorepens balstoni); 168. Eastern Broad-nosed Bat (Scotorepens orion): 169. Silverhaired Bat (Lasionycteris noctivagans).
Lasionycteris noctivagans mitochondrial genomes raw data
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Island biogeography theory and the urban landscape: stopover site selection by the silver-haired bat (Lasionycteris noctivagans)
<p>Many migratory bats require forested sites for roosting and foraging along their migration path, but increased urbanization and intensive agricultural practices may reduce the availability of stopover sites. Urban forests may provide important stopover habitat, maintaining landscape connectivity in regions where the majority of natural habitat has been cleared for development. Island biogeography theory can be applied to urbanized temperate forest biomes where small urban forests represent islands separated from the larger "mainland" forest. We used acoustic monitoring during the fall migration period to investigate the use of urban forest habitat by the migratory species <i>Lasionycteris noctivagans</i> (Le Conte 1831)<i>.</i> We predicted that recorded activity would have a positive relationship with forest patch area and shape and a negative relationship with isolation from other forest patches, as suggested by island biogeography theory. We observed greater activity at larger forest patches, and although relationships for shape and isolation were not statistically supported the observed patterns were consistent with predictions. Our results demonstrate the need for more in-depth research on the habitat requirements for both migratory and resident bat species and the impact that ongoing urbanization has on local bat populations.</p>
Island biogeography theory and the urban landscape: stopover site selection by the silver-haired bat (Lasionycteris noctivagans)
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OpenNeuro
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