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- Title
Terrestrische Habitatnutzung von Sympecma fusca über Jahreszeiten und Generationen hinweg (Odonata: Lestidae)- gewidmet Luca Walentin, Leutkirch -.
- Authors
Kathan, Bastian; Willigalla, Christoph
- Abstract
A capture-mark-recapture (CMR) study was conducted on Sympecma fusca at Spitzberg near Tübingen from 04 March 2018 to 15 February 2019. Further follow-up controls took place in 2020. Including the reproductively active specimens, 267 individuals of the 2017/18 generation were detected at Spitzberg, which used the entire area differentially in both spring and autumn. Of 105 individually marked specimens, 20 could be recaptured several times before the start of the reproductive phase over a maximum of three weeks, always at a short distance from the initial capture point. At a terrestrial habitat 730 m away from the nearest reproductive water body, several individuals were regularly encountered over the years. Out of 62 individuals observed between July and October 2018, only one (1.6%) was encountered at a distance of less than 10 m from a reproduction water body in the forest area of the Spitzberg, all other individuals (98.4%) were recorded further away from a water body. In principle, however, the distribution of the two generations on the Spitzberg differed little from each other, i.e. overlaps of the sites used in spring and summer or autumn were present except for the immediate vicinity of the water bodies and the southern slopes of the “Ödenburg” NSG. Rarely were only single animals found within a habitat structure in spring as well as in autumn, mostly small groups of two to more than ten animals were found in close spatial proximity to each other.
- Subjects
MARK &; recapture (Population biology); SUBSPECIES; HABITATS; BODIES of water; ANIMALS
- Publication
Libellula, 2020, Vol 39, Issue 3/4, p143
- ISSN
0723-6514
- Publication type
Article