Anemomenotaktische Orientierung bei Skorpionen (Chelicerata, Scorpiones)
Zitieren Sie bitte immer diese URN: urn:nbn:de:bvb:20-opus-44589
- 1. Scorpions can orient menotactically to horizontal air currents (Fig. 1). 2. Changing the wind velocity from 0,05-0,1 m/sec to 3--5 m/sec has no influence on the menotactic angle kept by an anemomenotactic oriented scorpion (Fig. 2). 3. The receptors percieving the direction of air currents are the trichobothria. 4. Orientation to horizon landmarks, anemomenotactic and astromenotactic orientation does not exclude each other but complete themthelves mutually: a) A scorpion orienting to horizon landmarks learns the corresponding anemomenotactic1. Scorpions can orient menotactically to horizontal air currents (Fig. 1). 2. Changing the wind velocity from 0,05-0,1 m/sec to 3--5 m/sec has no influence on the menotactic angle kept by an anemomenotactic oriented scorpion (Fig. 2). 3. The receptors percieving the direction of air currents are the trichobothria. 4. Orientation to horizon landmarks, anemomenotactic and astromenotactic orientation does not exclude each other but complete themthelves mutually: a) A scorpion orienting to horizon landmarks learns the corresponding anemomenotactic and astromenotactic angle (Fig. 4). b) While orienting anemomenotactically (which is normally the main means of orientation when landmarks are absent) they continously learn new astromenotactical angles (Fig. 5), thus compensating for the movement of the moon or sun which can not be compensated otherwise. c) Short calms and short changes of wind direction can be overcome by astrotaxis.…
Autor(en): | Karl Eduard Linsenmair |
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URN: | urn:nbn:de:bvb:20-opus-44589 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Medizinische Fakultät / Theodor-Boveri-Institut für Biowissenschaften |
Sprache der Veröffentlichung: | Deutsch |
Erscheinungsjahr: | 1968 |
Originalveröffentlichung / Quelle: | In: Zeitschrift für vergleichende Physiologie (1968), 60, S. 445 - 449. |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 59 Tiere (Zoologie) / 590 Tiere (Zoologie) |
Datum der Freischaltung: | 08.03.2010 |