The common vampire bat,Desmodus rotundus, is known to be capable of detecting temperature differences. In the experiments described here two animals were trained to give preference to the radiation emitted by a warm signal unit (the negative unit was left at room temperature). The distance between the decision line and the signal units was 8, 12 or 16 cm. Both animals responded to radiation as low as 0.5 × 10−4 W cm−2 (Fig. 3).
Based on calculations of the radiation emitted by the human skin, vampires should be capable of detecting warm-blooded animals at a distance up to 16 cm (Fig. 4). This sense for thermal radiation may aid these bats in localizing or selecting a suitable biting site.
Histological studies of the bats' facial structures indicate that thermal stimuli are most probably perceived in the three pits surrounding the central nose leaf: the thin, hairless and glandless skin is underlaid with dense connective tissue. Thermography reveals that the surface temperature of the nasal region is up to 9 °C lower than that of the neighboring parts of the face (Fig. 2).
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- SU :
signal unit (see Methods)
Bullock TH, Diecke FPJ (1956) Properties of an infrared receptor. J Physiol 134:47–87
Bullock TH, Fox W (1957) The anatomy of the infrared sense organ in the facial pit of pit vipers. Q J Microsc Sci 93:219–234
Crespo RF, Fernandez SS, Burns RJ, Mitchell GC (1974) Observaciones sobre el comportamiento del vampiro común (Desmodus rotundus) al alimentarse en condicionas naturales. Tecn Pecu Mex 27:39–45
Greenhall AM, Schmidt U, Lopez-Forment W (1971) Attacking behaviour of the vampire bat,Desmodus rotundus, under field conditions in Mexico. Biotropica 3:136–141
Hensel H (1973) Cutaneous thermoreceptors. In: Iggo A (ed) Somatosensory system. Springer, Berlin Heidelberg New York (Handbook of sensory physiology, vol II, pp 79–110)
Hensel H (1974) Thermoreceptors. Annu Rev Physiol 36:233–249
Hensel H (1975) Static and dynamic activity of warm receptors inBoa constrictor. Pflügers Arch 253:191–199
Hensel H, Brück K, Raths P (1973) Homeothermic organisms. In: Precht H, Christophersen J, Hensel H, Larcher W (eds) Temperature and life. Springer, Berlin Heidelberg New York, pp 502–761
Jamieson JA, McFee RH, Plass GN, Grube RH, Richards RG (1963) Infrared physics and engineering. McGraw-Hill, New York Toronto London
Precht H, Christophersen J, Hensel H, Larcher W (1973) Temperature and life. Springer, Berlin Heidelberg New York
Sachs L (1978) Angewandte Statistik. Springer, Berlin Heidelberg New York
Schmidt U (1978) Vampirfledermäuse. Die neue Brehm Bücherei 515. Ziemsen, Wittenberg
Schmidt U, Greenhall AM, Lopez-Forment W (1971) Ökologische Untersuchungen der Vampirfledermäuse (Desmodus rotundus) im Staate Puebla, Mexico. Z Säugetierkd 36:360–370
Terashima S, Goris R, Katsuki Y (1970) Structure of warm fiber terminals in the pit membrane of vipers. J Ultrastruct Res 31:494–506
Warren JW, Proske U (1968) Infrared receptors in the facial pits of the Australian pythonMorelia spilotes. Science 159:439–441
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Kürten, L., Schmidt, U. Thermoperception in the common vampire bat (Desmodus rotundus). J. Comp. Physiol. 146, 223–228 (1982). https://doi.org/10.1007/BF00610241