Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Nick Downs"'
Autor:
Laura J. Sanderson, Nick Downs
Publikováno v:
Acta Chiropterologica. 12:349-358
Although the importance of cattle grazed pasture to foraging bats has already been well documented, the relative importance of cattle dung compared with the cattle themselves is largely unknown. This was investigated by comparing two adjacent fields:
Autor:
Paul A. Racey, Nick Downs
Publikováno v:
Acta Theriologica. 52:55-64
The number of orientation, feeding and social calls emitted by pipistrelle batsPipistrellus pipistrellus Schreber, 1774 andP. pygmaeus Leach, 1825 was recorded throughout the night at eight different sites. Social calls were unaffected by weather var
Publikováno v:
Acta Chiropterologica. 8:381-390
Bats may be vulnerable to predation during evening emergence and morning return to their roosts. Early emergence increases the risk of exposure to raptorial birds, but emerging late confers a risk of missing the dusk peak of aerial insects. Here, bot
Autor:
Tim Bradford, Nick Downs, Rachel Bristol, Andrew Blyth, Louise Craig, Lorraine Marshall-Ball, Paul A. Racey, Denise McGowan, Sarah J. Burthe, Laura Bambini, Sinclair Laing, Terence Vel
Publikováno v:
Oryx. 40:310-318
The only microchiropteran endemic to the granitic Seychelles, the sheath-tailed bat Coleura seychellensis, is categorized as Critically Endangered on the IUCN Red List. Using bat detectors, the islands of Mahé, Praslin and La Digue were surveyed to
Autor:
Nick Downs, Paul A. Racey
Publikováno v:
Acta Chiropterologica. 8:169-185
Most previous studies of the use bats make of their foraging areas have been concerned with general habitat preferences rather than with microhabitats. The present study focuses on microhabitat preference within three landscape features: linear lands
Publikováno v:
Biological Conservation. 111:247-252
In an attempt to increase the accuracy of roost emergence counts for a monitoring programme, the exits of two Pipistrellus pygmaeus roosts were illuminated with light of different colours and intensities. Light intensity affected bat emergence more t
Publikováno v:
Medicine & Science in Sports & Exercise. 46:254