Universität zu Köln

Kappes, Heike, Tackenberg, Oliver and Haase, Peter (2014). Differences in dispersal- and colonization-related traits between taxa from the freshwater and the terrestrial realm. Aquat. Ecol., 48 (1). S. 73 - 84. DORDRECHT: SPRINGER. ISSN 1573-5125

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Abstract

The aquatic and terrestrial realms differ in many physical properties that not only require specific physiological adaptations but also cause differences in dispersal options. We thus expect that life-history traits related to dispersal and colonization are under selection pressure because freshwater habitats are more isolated and thus more difficult to reach. We compared traits from European databases of three taxonomic groups along the passive-active dispersal gradient: plants (Plantes), snails (Mollusca: Gastropoda: Prosobranchia et Pulmonata) and hoverflies (Diptera: Syrphidae), all of which have both terrestrial and freshwater species (plants and snails) or early life stages (hoverflies). Aquatic taxa seem to be more successful long-distance dispersers than are terrestrial taxa. Our analysis also revealed lower numbers of seeds or eggs produced in the aquatic habitats. However, aquatic taxa often allocate resources to offspring guarding (vegetative propagules in plants, egg capsules in snails) and breeding-site selection (syrphids). Colonization of the aquatic realm is reinforced by increases in life span (plants), clonal spread (plants), shorter generation times (snails), selfing ability (marginal effect in pulmonate snails) or paedogenesis (two incidences in hoverflies, needs further studies). Probably, the variety of strategies reflects the different evolutionary backgrounds that elicit different combinations of trade-offs, but all traits also might increase invasibility of species.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kappes, Heike UNSPECIFIED UNSPECIFIED UNSPECIFIED Tackenberg, Oliver UNSPECIFIED UNSPECIFIED UNSPECIFIED Haase, Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-444900
DOI:	10.1007/s10452-013-9467-7
Journal or Publication Title:	Aquat. Ecol.
Volume:	48
Number:	1
Page Range:	S. 73 - 84
Date:	2014
Publisher:	SPRINGER
Place of Publication:	DORDRECHT
ISSN:	1573-5125
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language LIFE-HISTORY TRAITS; POPULATION-STRUCTURE; SELF-FERTILIZATION; HOVERFLIES DIPTERA; PLANT TRAITS; DATABASE; SYRPHIDAE; PERSPECTIVES; MACROPHYTES; MIGRATION Multiple languages Ecology; Limnology; Marine & Freshwater Biology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/44490