Autumn swarming of the pond bat<i>Myotis dasycneme</i>at hibernation sites in Latvia

Vintulis, Viesturs; Šuba, Jurģis

doi:10.3176/eco.2010.1.06

Cited by 8 publications

(5 citation statements)

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“…Male-biased sex ratios predominate in bats at swarming caves during autumn (Piksa 2008;Šuba et al 2008;Vintulis and Šuba 2010). Bats at Colossal Cave demonstrated the same pattern for all species that hibernated in the cave.…”

Section: Discussionmentioning

confidence: 94%

“…Most typically associated with Myotis bats, swarming is known to occur in seven genera of Microchiropteran bats (Parsons et al 2003). This behavior begins in late summer, peaks in mid-autumn, and ceases in mid-October to early November when bats enter hibernation (Šuba et al 2008;Vintulis and Šuba 2010). Swarming is hypothesized to serve several functions, including finding mates (Parsons et al 2003;Rivers et al 2005), introducing volant young to hibernation sites (Humphrey and Cope 1976;Veith et al 2004), serving as rendezvous sites in migration (Fenton 1969), and assessing conditions inside hibernacula (Davis and Hitchcock 1965;Furmankiewicz and Gó rniak 2002).…”

Section: Introductionmentioning

confidence: 99%

“…Swarming is hypothesized to serve several functions, including finding mates (Parsons et al 2003;Rivers et al 2005), introducing volant young to hibernation sites (Humphrey and Cope 1976;Veith et al 2004), serving as rendezvous sites in migration (Fenton 1969), and assessing conditions inside hibernacula (Davis and Hitchcock 1965;Furmankiewicz and Gó rniak 2002). Sex ratios of swarming bats are usually male-biased (Piksa 2008;Šuba et al 2008;Vintulis and Šuba 2010), although exceptions have been reported for the greater mouseeared bat Myotis myotis (Pocora et al 2012). Swarming behavior can facilitate gene flow, especially among relatively isolated summer colonies of bats (Kerth et al 2003;Veith et al 2004;Rivers et al 2006).…”

Section: Introductionmentioning

confidence: 99%

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Temporal Changes in Body Mass and Body Condition of Cave-Hibernating Bats During Staging and Swarming

Lacki

Dodd

Toomey

et al. 2015

Journal of Fish and Wildlife Management

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The rapid colonization of the Pseudogymnoascus destructans fungus across cave systems in eastern North America and the associated bat mortalities (white-nose syndrome; WNS), necessitates studies of cave-hibernating bats that remain unaffected by, or in close proximity to, the leading edge of the fungal distribution to provide baseline predisturbance data from which to assess changes due to fungal effects. Studies of the physiological ecology of cave-hibernating bats during the spring staging and autumn swarming seasons are few, and an understanding of patterns in body condition of bats associated with entry into and emergence from hibernation is incomplete. We sampled bats at the entrance to a cave in Mammoth Cave National Park, Kentucky, during swarming and staging, prior to (2011 and 2012), concurrent with (2013), and following (2014) the arrival of the WNS fungus. We evaluated seasonal and annual changes in body mass and body condition of bats entering and leaving the cave. We captured 1,232 bats of eight species. Sex ratios of all species were male-biased. Capture success was substantially reduced in 2014, following the second winter after arrival of the WNS fungus. Significant temporal variation in body mass and body mass index was observed for little brown bats Myotis lucifugus, northern long-eared bats M. septentrionalis, and tri-colored bats Perimyotis subflavus, but not Indiana bats M. sodalis. Little brown bats and northern long-eared bats demonstrated significant increases in mean body mass index in 2014; this pattern likely reflected a relatively better body condition in bats that survived exposure to the WNS fungus. Most species demonstrated highest body mass and body mass index values in late swarming compared with other sampling periods, with tri-colored bats showing the greatest percent increase in body mass (42.5%) and body mass index (42.9%) prior to entering hibernation. These data indicate significant intraspecific variation in body condition of cave-hibernating bat species, both among years and between the seasons of autumn swarming and spring staging. We suggest this variation is likely to have implications for the relative vulnerability of species to WNS infection across the distribution of the Pseudogymnoascus fungus.

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Temporal Changes in Body Mass and Body Condition of Cave-Hibernating Bats During Staging and Swarming

Lacki

Dodd

Toomey

et al. 2015

Journal of Fish and Wildlife Management

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“…La captura se efectuó con redes de niebla de cinco bolsas (14mm), colocadas dentro de los pasos agrícolas inferiores y ajustadas a la dimensión (Vintulis & Šuba, 2010) de cada paso agrícola inferior. Las 5 sesiones de captura (una por paso) realizadas en agosto, tuvieron una duración de 3 horas, las de mayor actividad de murciélagos (Bat Conservation Trust, 2012).…”

Section: Metodologíaunclassified

Pasos agrícolas inferiores de carreteras. su importancia para los murciélagos como refugio y lugar para cruzar la vía

2014

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English title: Agricultural underpasses: their importance for bats as roosts and role in facilitating movement across roads ResumenCon objeto de ampliar el conocimiento sobre la utilización de los pasos inferiores agrícolas por parte de los murciélagos se han desarrollado trabajos de detección acústica, captura y revisión de refugios en cinco pasos inferiores ubicados a lo largo de 8250m de un tramo de la carretera situada en el Norte de Portugal en una zona rural de uso agrícola y pastoreo. Los pasos tienen las dimensiones medias de 9 m de anchura, 4,25 m de altura y 34 m de profundidad. Los resultados de los registros acústicos y de captura de murciélagos con redes de niebla, permitieron confirmar la utilización de por lo menos 12 especies (Pipistrellus pipistrellus, P. kuhlii, P. pygmaeus, Myotis daubentonii, M. escalerai, M. myotis, Nyctalus leisleri, Plecotus austriacus, Rhinolophus ferrumequinum, R. hipposideros, R. mehelyi/R. euryale y Eptesicus serotinus/E. isabellinus).La inspección y revisión de refugios en los 5 pasos inferiores han permitido constatar la presencia de por lo menos 6 especies (M. daubentonii, M. myotis, N. leisleri, P. austriacus, Eptesicus serotinus/E. isabellinus y Pipistrellus sp.) que usaron fisuras dentro de los túneles de entre 1,2 y 1,9 cm. Para una misma altura (4,2-4,3m) y anchura de túnel (9m), los pasos más utilizados fueron los de mayor longitud. Estos resultados confirman la importancia que los pasos inferiores tienen en la conectividad y minimización de los impactos de las carreteras, así como proporcionan nuevos refugios artificiales para los murciélagos. Se incita a promover seguimientos y estudios ecológicos más detallados que profundicen en el conocimiento de la utilización de los quirópteros de estas estructuras así como sus características físicas y su entorno y en otras carreteras.Palabras clave: Carreteras, Pasos inferiores, Murciélagos, Conservación, Portugal. AbstractThe main goal of this study was to contribute for the knowledge of the use of under-roads passageways by bats in northern of Portugal. We selected five underpasses in a road stretch of 8.250 m located in a rural agricultural and grazing area. The average dimensions of underpasses were, 9 m wide, 4.25 m high and 34 m deep. The data was obtained through acoustic detection, mist net capture and roost inspection. Acoustic and mist netting results confirm the use of the underpasses by at least 12 species (Pipistrellus pipistrellus, P. kuhlii, P. pygmaeus, Myotis daubentonii, M. escalerai, M. myotis, Nyctalus leisleri, Plecotus austriacus, Rhinolophus ferrumequinum, R. hipposideros, R. mehelyi/R. euryale and Eptesicus serotinus/E. isabellinus). Data from roost inspection in all the underpasses showed the presence of at least six species (M. daubentonii, M. myotis, N. leisleri, P. austriacus, Eptesicus serotinus/E. isabellinus y Pipistrellus sp.), they used fissure within the tunnels of between 1.2 and 1.9 cm. For the same height (4.2-4.3 m) and width (9m), the underpasses most used were the longest....

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“…In most species, male and female bats live in segregated summer habitats [1, 2; 3, 4, 5]. In autumn sexes meet in mating roosts, the male roosts, or the winter roosts [6,7,8]. The migration behaviour of bats between their summer and winter roosts is unique.…”

Section: Introductionmentioning

confidence: 99%

Energy balance; choices between energy spend on migration and mating influences the life cycle of the pond bat (Myotis dasycneme)

Haarsma

Lina

Voûte³

et al. 2019

Preprint

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During autumn in the temperate zone, insectivorous male bats face a profound energetic challenge, as in the same period they have to make energy choices related to hibernation, mating and migration. We found evidence by looking at biometric measurements that male pond bats (Myotis dasycneme) are pre-occupied with mating and lose weight, while simultaneously females are accumulating fat. Our purpose was to characterize the known hibernacula in terms of male or female bias, and subsequently compare their population trend during two study periods, between 1930-1980 and 1980-2015. Our findings include evidence of colonisation of winter roosts in formerly unoccupied areas and consequently a change in the migration patterns of the male population of this species. As male bats do not assist to raise their offspring, males have abundant time to restore their energy balance after hibernation. Our results suggest that choosing a hibernacula closer to the summer habitat not only decreases energy cost needed for migration, it also lengthens the mating season and presumably also has the additional advantage of increased paternity. Additionally, these findings have important conservation implications, as male and female biased hibernation assemblages may differ critically in terms of microclimate preferences.

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Autumn swarming of the pond batMyotis dasycnemeat hibernation sites in Latvia

Cited by 8 publications

References 8 publications

Temporal Changes in Body Mass and Body Condition of Cave-Hibernating Bats During Staging and Swarming

Temporal Changes in Body Mass and Body Condition of Cave-Hibernating Bats During Staging and Swarming

Pasos agrícolas inferiores de carreteras. su importancia para los murciélagos como refugio y lugar para cruzar la vía

Energy balance; choices between energy spend on migration and mating influences the life cycle of the pond bat (Myotis dasycneme)

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