Orientation in Neotropical Bats. II. Phyllostomatidae and Desmodontidae

Novick, Alvin

doi:10.2307/1377166

Cited by 56 publications

(46 citation statements)

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“…1). However, the bat recorded by Novick (1963) produced calls that were several kHz higher in frequency than ours. The specimen studied by Novick (1963) was from Mexico, and probably belonged to the subspecies Pteronotus davyi fulvus (about 7 g; Adams, 1989) which is lighter and smaller than P. davyi davyi (approximately 10 g), and might therefore be expected to produce echolocation calls of higher frequency (Jones, 1995).…”

Section: Natalidaecontrasting

confidence: 64%

“…Mormopterus blainvillii feeds almost exclusively on Lepidoptera (Rodríguez-Durán and Lewis, 1987;Lancaster and Kalko, 1996). In previous studies, most energy in calls of P. davyi davyi was in the second harmonic (Novick, 1963;Ibáñez et al, 1999) whereas in our study, most energy was in either the fundamental or the second harmonic (Fig. 1).…”

Section: Natalidaesupporting

confidence: 43%

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Echolocation Calls and Wing Morphology of Bats from the West Indies

Jennings¹,

Parsons

Barlow

et al. 2004

Acta Chiropterologica

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Section: Natalidaecontrasting

confidence: 64%

Section: Natalidaesupporting

confidence: 43%

Echolocation Calls and Wing Morphology of Bats from the West Indies

Jennings¹,

Parsons

Barlow

et al. 2004

Acta Chiropterologica

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“…Machado-Allison (1967) described hostparasite associations and interpreted data on echolocation calls (Novick, 1963) as sug- NO. 248 BULLETIN AMERICAN MUSEUM OF NATURAL HISTORY Fig.…”

Section: Phyllostomid Classificationmentioning

confidence: 99%

Phylogeny of Phyllostomid Bats (Mammalia: Chiroptera): Data From Diverse Morphological Systems, Sex Chromosomes, and Restriction Sites

Wetterer

Rockman

Simmons

2000

Bulletin of the American Museum of Natural History

267

344

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“…In addition the external ears could be designed and oriented to favor echo rather than pulse perception. Indeed, these or a combination of these pulse characteristics are known to be used by various species of bats (Moehres, 1953;Griffin & Novick, 1955;Novick, 1958Novick, , 1962Novick, , 1963b. Perhaps a bat's sensitivity for echoes is in part controlled by the relation between stapedius-laryngeal muscle contractions and the physical characteristics of the pulses.…”

Section: Stapedius-laryngeal Muscle Co-ordinationmentioning

confidence: 99%

“…Ordinarily the emitted pulses are frequency modulated with the fundamental frequency sweeping one octave or less downward during each cry. The frequency range usually lies between 150 and 12 kc/sec and the peak-topeak sound pressures, when measured at distances of 3-10 cm from a bat's mouth, average from 70-80 db (re-0-0002 dyne/cm2) in so-called 'whispering' bats, to values well above 100 db (re-0-0002 dyne/cm2) in loud bats (Griffin & Novick, 1955;Novick, 1958Novick, , 1962Novick, , 1963b. These and other pulse characteristics vary, not only from species to species, but within the same species depending upon the activity of the animal.…”

mentioning

confidence: 99%

The activity and function of the middle‐ear muscles in echo‐locating bats.

Henson¹

1965

The Journal of Physiology

150

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In most vertebrates the visual system plays a dominant role in orientation, allowing animals to orient themselves with respect to their environment and to assess the size, shape, distance, nature and movements of objects. During the past 20 years, largely through the efforts of Donald R. Griffin and co-workers, it has become increasingly apparent that the auditory system of bats is capable of performing these same functions. Indeed, laboratory experiments have shown that bats can perform remarkable feats without the aid of vision. Flying at speeds of 3-4 m/sec they can detect 1 mm diameter wires at a distance of 2 m, fly unhindered through an array of 0-2 mm diameter wires, and capture mosquitoes and fruit flies at rates of up to two/sec (Grinnell & Griffin, 1958;Griffin, Webster &;Michael, 1960). This is accomplished by echo-location, that is, the emission of ultrasonic pulses and the subsequent perception and analysis of echoes. Ordinarily the emitted pulses are frequency modulated with the fundamental frequency sweeping one octave or less downward during each cry. The frequency range usually lies between 150 and 12 kc/sec and the peak-topeak sound pressures, when measured at distances of 3-10 cm from a bat's mouth, average from 70-80 db (re-0-0002 dyne/cm2) in so-called 'whispering' bats, to values well above 100 db (re-0-0002 dyne/cm2) in loud bats (Griffin & Novick, 1955;Novick, 1958Novick, , 1962Novick, , 1963b. These and other pulse characteristics vary, not only from species to species, but within the same species depending upon the activity of the animal. Indeed, on the basis of changes in the pulse characteristics, different phases of echo-location can be recognized. In the case of Myotis hunting fruit flies, echo-location can be divided into a search phase, an approach phase and a terminal phase (Griffin et al. 1960;Griffin, 1962).During the search phase each emitted pulse has a duration of 2-3 msec, and the pulse repetition rate is about 10-20/sec. The emitted pulses appear to have peak-to-peak sound pressures of 109 db (at a distance of 10 cm from the bat's mouth) and the fundamental frequency of each pulse sweeps

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Orientation in Neotropical Bats. II. Phyllostomatidae and Desmodontidae

Cited by 56 publications

References 0 publications

Echolocation Calls and Wing Morphology of Bats from the West Indies

Echolocation Calls and Wing Morphology of Bats from the West Indies

Phylogeny of Phyllostomid Bats (Mammalia: Chiroptera): Data From Diverse Morphological Systems, Sex Chromosomes, and Restriction Sites

The activity and function of the middle‐ear muscles in echo‐locating bats.

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