Habitat use and nocturnal activity patterns of the threatened lesser short-tailed bat (Mystacina tuberculata) were sampled during late spring and early summer using automatic bat detector units in temperate beech (Nothofagus) rainforest in Fiordland, New Zealand. Detector units recorded the number of bats passing per hour as an index of activity. Habitat use patterns were compared with longtailed bats (Chalinolobus tuberculatus) sampled concurrently. Activity levels in lesser short-tailed bats varied significantly among five habitat types and amongst hours of the night. Of the total activity recorded, most passes (82.6% of n = 657 bat passes) were in red beech forest >200 m from the forest edge; 13.7% were in silver beech within 100 m of forest edges, 2.6% were along roads through forest, 0.9% were on the forest-grassland edge, and 0.2% were in the open grassland. Lesser short-tailed bats were active throughout the night but especially at dawn and dusk. There was no correlation between levels of activity by lesser short-tailed bats and overnight minimum or dusk temperatures. Patterns of habitat use and activity in long-tailed bats were significantly different from those of lesser short-tailed bats. Z06009; Online publication date 19 April 2006 Received 20 December 2005; accepted 3 April 2006Of the total activity recorded, most (56.0% of n = 2929 bat passes) was along forest-grassland edges; 15.7% of passes were in open grassland, 13.1% were along roads through forest, 11.0% were in silver beech forest within 100 m of forest edges, and 4.2% within red beech forest. The implications of these findings for conservation and for improving survey techniques are discussed. For example, lack of use of open and edge habitats by lesser short-tailed bats suggests they would not adapt to highly fragmented and cleared forest habitats. The two species of New Zealand bat used available habitats differently while inhabiting the same sites. Therefore, a range of habitats, including forest interior, forest edges and grasslands, are required to sustain both species within reserves and management areas. Surveys for lesser short-tailed bats should focus on mature forest stands >200 m into the forest to maximise the chance of encountering this species, whereas surveys for long-tailed bats would best focus on forest edges.
Winter activity of the New Zealand lesser short-tailed bat (Mystacina tuberculata) was monitored in temperate beech (Nothofagus) rainforest in Fiordland during winter in 1997 and 1998. Thirty-three full nights (486 h) were sampled using automatic bat detector units at 12 sites. Activity was detected on 18 nights (264 bat passes total, on 54.5% of nights). Index counts (bat passes per night, and passes per hour) were low and highly variable, implying larger sample sizes are needed before more precise estimates of activity levels can be attempted. A logistic regression model indicated that the probability of bats being active in winter increased with overnight mean temperature, and if it was raining. Dusk temperature, minimum overnight temperature, moon visibility, and significant cloud cover were excluded from the final model. Lesser short-tailed bats were still active down to -1.6°C, a lower temperature than is tolerated by many other bat species reliant on flying insects. The observed winter activity followed a pattern of nights with low or no activity interspersed with nights of high activity. This is consistent with patterns observed in other lesser short-tailed bat populations, although in the Eglinton Valley, they were generally less active Z06007; over the winter months. We suggest variation in winter activity levels between populations is most likely driven by climate, the quality of foraging habitat, and the physiological constraints of body size on torpor.
Buff. (Jfootrrcillu wiur-itiuw, Gui. ?). Z. cinerea, Swains. ? A speciinen received froiii Goudot in the Paris collection is a little nlore browiiisli ; perhaps a felltale. 11. %. LUGL~l31tIS, llartl. lhd in Rliidagascar a i d the Mascarene Islands. c. SYEIROPS. Supra olivaecw, pi1t.o iiigricante, uroyygio viridi-flavescente; lioc iiiiiiris eottspieuc~, albis ; subahribus ct tiexura alze pure allis ; guttitre ~)allicle ciiierasceilte ; pcctore et abtloriiiiie dilute brutiiiehociiti-olivilL'CiS ; rostro briuiiico ; pedibus carlieis ; iritle ~iigra. Long. 5 " P ; rostr. a fr. 4.irr; al. 2'r 8;"'; caud. 2"; tars. €ifrr. Syn. Zosterops luphris, H a d Rev. Zool. 1818, p. 108; Id. lkitr. z. Orn. Westaf'r. p. 49; Id. Abhandl. Naturw. Ver. Ilanib. ii. I). 49, t. 2. fig. nied.; Id. Syst. Om. Westafr. p. 72. Speirupps !ugtrbris, ltckhenb. Rlerop. p. 93, fig. 3306. Coiifiiicd to the Island of St. l'honias. W e have examined two specimens (Hanib. Rlus.). Less typical. f: iihciola inter rictriiii ct oculum aiiiiuloque pcriol)lithalniico, The largest Zosteropine species of Africa. XL1.-A Fortnight in the Dobr-urlscha. By\\'. 11. SiiiPsoN, MA., P.Z.S. T a E Austrian steamer from Constantinople to Galatz being caught in a gale of wind off Varna, on Sunday, April 15, 1860, was obliged to run for shelter behilid the point of Kali Akra, the eastern horn of Baltschik Bay, where she lay for thirty-six hours, secure froni the furious nor'-eastcr, which drove the scud at hurricane speed just over the 300 feet cliffs that protected us from its fury. This is the first view which the traveller from
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.