Flower clocks, time memory and time forgetting

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URI: http://hdl.handle.net/10900/67799
http://nbn-resolving.de/urn:nbn:de:bsz:21-dspace-677998
http://dx.doi.org/10.15496/publikation-9218
Dokumentart: Buch (Monographie)
Date: 2016-01
Language: English
Faculty: 7 Mathematisch-Naturwissenschaftliche Fakultät
7 Mathematisch-Naturwissenschaftliche Fakultät
Department: Mathematisch-Naturwissenschaftliche Fakultät
DDC Classifikation: 500 - Natural sciences and mathematics
570 - Life sciences; biology
Keywords: Rhythmen , Pflanzen , Insekten , Licht , Zeitgedächtnis , Diapause , Sonnenkompass , Versuch
Other Keywords: Kopfuhr
Rhythms
plants
insects
light
time-memory
headclock
suncompass
experiments
License: Publishing license including print on demand
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Inhaltszusammenfassung:

Many flowering plants are fertilized by insects. Bees remember the time nektar and pollen is offered. In doing so they use an internal daily clock and a sun compass. Petals are able to open and close rhythmically. Or the flowers open at a certain time of the day or night and stay afterward open. Leaf cutter bees are reared and sold for fertilizing lucerne in fields. This allows a ten fold higher yield of lucern seeds. Many insects spent the winter in diapause, a resting stage. Beach hoppers orient themselves with an internal sun compass. Man has also an internal time sense (head clock). Observations and experiments are proposed.

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