Universität zu Köln

Kappes, Heike and Topp, Werner (2014). Responses of forest snail assemblages to soil acidity buffer system and liming. Ecol. Res., 29 (4). S. 757 - 767. HOBOKEN: WILEY. ISSN 1440-1703

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Abstract

Physiological constraints from harsh environmental conditions, such as from calcium limitation on acidic soils, is expected not only to affect species richness, but also species abundance distributions. Also, the effects of amendments by calcium addition (soil liming) on these assemblage characteristics are poorly understood. Because of their sensitivity towards calcium availability, we use snails as model organisms and integrate field surveys and literature data. Temperate forest snail data supported a rule-of-thumb calibration with pH measurements in water being one unit higher than in KCl buffer. The resulting large data set suggests stepwise changes in snail richness that occur at transitions in soil buffer systems, especially at pH 3.2. Species abundance distributions follow the logseries model in most soil buffer systems, except for the iron buffer range (pH a parts per thousand currency sign3.2) where they swap to the geometric model. Our findings thus suggest several smaller soil pH thresholds for snail assemblages associated with shifts between soil buffer systems, and a tipping point at the threshold to pH a parts per thousand currency sign3.2. Liming with ground carbonate rocks is a technique to temporarily increase soil pH and calcium availability in forest soils, but its effects on snail assemblages produced inconsistent results that did not meet expectations from the ameliorated soil pH and might warrant a re-evaluation of liming applications.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kappes, Heike UNSPECIFIED UNSPECIFIED UNSPECIFIED Topp, Werner UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-434402
DOI:	10.1007/s11284-014-1167-9
Journal or Publication Title:	Ecol. Res.
Volume:	29
Number:	4
Page Range:	S. 757 - 767
Date:	2014
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1440-1703
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SPECIES ABUNDANCE DISTRIBUTIONS; COARSE WOODY DEBRIS; LAND SNAILS; CALCIUM AVAILABILITY; DIETARY CALCIUM; COMMUNITIES; IMPACT; ACIDIFICATION; BIODIVERSITY; GASTROPODA Multiple languages Ecology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/43440