The roost preference of Nyctalus noctula (Chiroptera, Vespertilionidae) in summer and the ecological background of their urbanization

Mammalia ◽  
2004 ◽  
Vol 68 (4) ◽  
Author(s):  
Zoltán Bihari
Keyword(s):  
Roost Selection ◽  
Nyctalus Noctula ◽  
Selection Of

The paper summarises the investigation of roost-selection of

Influence of temperature on maternity roost selection by noctule bats (Nyctalus noctula) and Leisler’s bats (N. leisleri) in Białowieża Primeval Forest, Poland

2006 ◽  
Vol 84 (6) ◽  
pp. 900-907 ◽  
Author(s):  
Ireneusz Ruczyński
Keyword(s):  
Late Pregnancy ◽  
Ground Level ◽  
Data Logger ◽  
Primeval Forest ◽  
Tree Cavities ◽  
Roost Selection ◽  
Pregnancy And Lactation ◽  
Maximum Temperatures ◽  
Białowieża Primeval Forest ◽  
Nyctalus Noctula

This study tests whether the temperature of tree cavities determines their selection by bats in Białowieża Primeval Forest (BPF), eastern Poland. Using a data logger, I simultaneously measured the temperature in cavities selected by bats as roosts and the temperature in available but unselected cavities. The maternity roosts chosen by noctule bats, Nyctalus noctula (Schreber, 1774), and Leisler’s bats, N. leisleri (Kuhl, 1817), during late pregnancy and lactation were warmer than unoccupied cavities, but temperature ranges in the two types of cavity did not differ. A logistic regression model showed that the mean cavity temperature during the night (2200–0400) and the minimum cavity temperature over a 24 h period were crucial for roost selection. This suggests that female noctule and Leisler’s bats selected roosts that promoted juvenile growth and used tree cavities that could save them energy while they were active because the cavity temperatures were close to the lower critical temperature of their thermoneutral zone. I also suggest that selection of warmer cavities minimized the bats' energy expenditure prior to emergence from the roost and that passive rewarming inside the cavity was an important factor in minimizing energetic costs of roosting by bats in BPF. Mean and maximum temperatures recorded near tree trunks increased with the height at which the temperature was measured (ground level, 10, 20, and 30 m), suggesting that bats can gain thermal benefits from insolation of the trunk by selecting highly placed cavities, as was observed in BPF.

Relative abundance, diet and roost selection of the tube-nosed insect bat, Murina florium, on the Atherton Tablelands, Australia

1998 ◽  
Vol 25 (3) ◽  
pp. 261 ◽  
Author(s):  
Martin Schulz ◽  
David Hannah
Keyword(s):  
Relative Abundance ◽  
Dead Leaf ◽  
Faecal Pellets ◽  
Faecal Analysis ◽  
Communal Roost ◽  
Roost Selection ◽  
Middle Range ◽  
North Eastern ◽  
Incidental Exposure ◽  
Selection Of

The relative abundance, diet and roost selection of the tube-nosed insect bat, Murina florium (Vespertilionidae), was investigated at Mt Baldy and Ravenshoe State Forests in north-eastern Queensland. In all, 34 M. florium were captured in 263 trap-nights; this was in the middle range of microchiropteran bat species captured. Faecal analysis indicated that the major prey items of M. floriumwere Coleoptera and Araneida. The presence of the latter prey item in faecal pellets suggests that the species is a partial gleaner. Low levels of predominantly myrtaceous pollen collected from head and throat fur indicated only incidental exposure. M. florium used a variety of external roosts in rainforest, with the only communal roost being located in a fallen Archontophoenix leaf suspended from a liana. Other roosts occupied by single M. florium were nests (n = 7) of yellow-throated scrubwrens, Sericornis citreogularis, and fernwrens, Oreoscopus gutturalis, and vertically suspended dead leaf clusters (n = 3). All roosts were located in the rainforest understorey at a mean height of 4.2 m, positioned from close to watercourses up to ridgelines. Bird nests utilised had been modified; the possibility of tent-making behaviour in this species is discussed.

Roosting behaviour and roost selection of female big brown bats (Eptesicus fuscus) roosting in rock crevices in southeastern Alberta

2002 ◽  
Vol 80 (6) ◽  
pp. 1069-1076 ◽  
Author(s):  
Cori L Lausen ◽  
Robert M.R Barclay
Keyword(s):  
Small Groups ◽  
Eptesicus Fuscus ◽  
River Valley ◽  
Big Brown Bats ◽  
Roost Selection ◽  
Adult Females ◽  
South Saskatchewan River ◽  
Pregnancy And Lactation ◽  
Physical Attributes ◽  
Selection Of

We studied big brown bats (Eptesicus fuscus) roosting in rock crevices along the South Saskatchewan River in southeastern Alberta. We documented roosting behaviour and roost selection. During pregnancy and lactation, individuals aggregated as several small groups or one large group (maternity colony). Postlactating females roosted alone more frequently. During postlactation, individuals periodically returned to roost with a group dominated by pups, between periods of roosting alone. We identified 72 roosts used by members of the colony. Adult females switched roosts frequently and few roosts (24%) were reused. During pregnancy and lactation, the colony roosted in a 1.25-km length of the river valley on the northwest side of the river. With the onset of postlactation, females began roosting on both sides of the river and within a longer section of the river valley, and roosts faced in a more southerly direction. Crevices selected as roosts were more vertical in orientation, were farther from level ground above, and had openings that were smaller than those randomly available. Roosts used during pregnancy, lactation, and postlactation differed in physical attributes; lactation roosts were deeper and had larger openings. Selection of crevices with particular attributes suggested that selection was based on microclimate and avoidance of predation.

scholarly journals Roost selection of the short-nosed fruit bat, Cynopterus spp. in Sri Lanka

2011 ◽  
Vol 1 (0) ◽  
pp. 15 ◽  
Author(s):  
PMC Bandara Digana ◽  
Wipula B Yapa ◽  
Preethi V Randeniya ◽  
WD Ratnasooriya
Keyword(s):  
Sri Lanka ◽  
Fruit Bat ◽  
Roost Selection ◽  
Selection Of

Spring Migration and Roost Selection of Female Myotis leibii in Maryland

2008 ◽  
Vol 15 (3) ◽  
pp. 453-460 ◽  
Author(s):  
Joshua B. Johnson ◽  
J. Edward Gates
Keyword(s):  
Spring Migration ◽  
Roost Selection ◽  
Myotis Leibii ◽  
Selection Of

Distribution and Roost Selection of Bats on Newfoundland

2012 ◽  
Vol 19 (2) ◽  
pp. 165-176 ◽  
Author(s):  
Allysia C. Park ◽  
Hugh G. Broders
Keyword(s):  
Roost Selection ◽  
Selection Of

Diurnal roost selection of northern long-eared bats on the southern edge of their range

2021 ◽  
Vol 496 ◽  
pp. 119410
Author(s):  
John F. Grider ◽  
Steven B. Castleberry ◽  
Jeffrey Hepinstall‐Cymerman
Keyword(s):  
Roost Selection ◽  
Selection Of
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