Operant studies of pigeon orientation and navigation

Whiten, Andrew

doi:10.1016/0003-3472(78)90072-6

Cited by 8 publications

(2 citation statements)

References 52 publications

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“…Childs & buchler (1981) suggested that bats could use celestial navigation, and showed that Fuscus fuscus can sense the brightest stars in the sky. unfortunately, there is no evidence to suggest that bats possess the second circadian clock required for true celestial navigation, nor that their visual acuity is sufficient to detect the required change in degree between two celestial features (Whiten 1978). Celestial navigation also fails to explain how bats could still migrate and home under overcast skies.…”

Section: Discussionmentioning

confidence: 99%

Evidence of homing following translocation of long‐tailed bats (Chalinolobus tuberculatus) at Grand Canyon Cave, New Zealand

Guilbert

Walker

Greif

et al. 2007

New Zealand Journal of Zoology

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Homing behaviour in the New Zealand long-tailed bat (Chalinolobus tuberculatus), a temperate insectivorous species, was investigated at Grand Canyon Cave, central North Island. A pilot study of nine adult male bats was conducted to determine whether use of the cave was regular enough for a homing study. Eight bats returned to the cave over the 3-week monitoring period, six on the night following release. Nine additional bats carrying radio transmitters were then released at three sites (three at each site) c. 5, 10 and 20 km due east of the cave; sites estimated to be located within, on the border of, and outside the population's known familiar area respectively. All but one of these nine bats were subsequently detected at the cave. Results suggest that adult long-tailed bats are able to return home following displacement both inside and outside their familiar area. Implications of these findings for translocations of bats and the possession of a potential long-distance navigation system by this species are discussed.

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Section: Discussionmentioning

confidence: 99%

Evidence of homing following translocation of long‐tailed bats (Chalinolobus tuberculatus) at Grand Canyon Cave, New Zealand

Guilbert

Walker

Greif

et al. 2007

New Zealand Journal of Zoology

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“…In many bird species measurements show that eye positions and visual fields give extensive, and in some cases comprehensive, visual coverage of the celestial hemisphere [Martin and Katzir, 1995], suggesting that the sun is unavoidably imaged upon the retina and that the corneas might be constantly exposed to sunlight. Furthermore, some birds employ a sun-compass in their orientation and navigation mechanisms [Wiltschko and Wiltschko, 1999] and pigeons (Columba livia) have been shown capable of determining sun azimuth and elevation to a high degree of accuracy [Whiten, 1978], suggesting that these birds must regularly view the sun.…”

Section: Introductionmentioning

confidence: 99%

Sun Shades and Eye Size in Birds

Martin

Katzir²

2000

Brain Behav Evol

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Visual field width above the head is significantly correlated (r_s = 0.92, n = 11, p < 0.001) with eye size in a sample of terrestrial birds that differ in their phylogeny and ecology. These species can be divided into two groups. Smaller-eyed sun-observers (axial length <18 mm) have comprehensive or near comprehensive visual coverage of the celestial hemisphere and are thus unable to avoid viewing the sun. Larger-eyed sun-avoiders (axial length >18 mm) have restricted visual fields and various types of optical adnexa (enlarged brows, hair like feathers on the eye lids and around the eye) which can prevent solar illumination of the cornea. We suggest that these differences relate to visual rather than pathological problems and argue that the reduction of disability glare, produced by sunlight falling directly upon the eye, becomes increasingly significant as eye size increases. We propose that the reduced visual fields and optical adnexa of the larger-eyed birds are primarily concerned with the maintenance of high spatial resolution.

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Clock-Controlled Orientation in Space

Wallraff¹

1981

Biological Rhythms

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Operant studies of pigeon orientation and navigation

Cited by 8 publications

References 52 publications

Evidence of homing following translocation of long‐tailed bats (Chalinolobus tuberculatus) at Grand Canyon Cave, New Zealand

Evidence of homing following translocation of long‐tailed bats (Chalinolobus tuberculatus) at Grand Canyon Cave, New Zealand

Sun Shades and Eye Size in Birds

Clock-Controlled Orientation in Space

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