Exploring land snails’ response to habitat characteristics and their potential as bioindicators of riparian forest quality

Riparian ecosystems are crucial for landscape-level biodiversity, especially in highly anthropic and agricultural areas. Although the low mobility of snails reduces their dispersal capacity and makes them vulnerable to habitat degradation, they are less commonly used as indicators. We evaluated the...

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Main Authors: Voichița Gheoca, Ana Maria Benedek, Erika Schneider
Format: Article
Language:English
Published: Elsevier 2021-12-01
Series:Ecological Indicators
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1470160X21009547
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author Voichița Gheoca
Ana Maria Benedek
Erika Schneider
author_facet Voichița Gheoca
Ana Maria Benedek
Erika Schneider
author_sort Voichița Gheoca
collection DOAJ
description Riparian ecosystems are crucial for landscape-level biodiversity, especially in highly anthropic and agricultural areas. Although the low mobility of snails reduces their dispersal capacity and makes them vulnerable to habitat degradation, they are less commonly used as indicators. We evaluated the potential of land snails as bioindicators of riparian forest quality in central European riparian forests by surveying snail communities in relation to habitat characteristics that characterize its quality. Habitat characteristics were found to affect both snail abundance and species richness. The abundance of snail species increased with the forest continuity, forest width and abundance of leaf litter and decreased with the cover of ruderal plant species and presence of household waste deposits. Snail diversity was positively influenced by habitat continuity, forest width, and abundance of dead wood. The community composition was also sensitive to habitat characteristics, most species having their optimum in habitats with high amounts of decaying dead wood and litter. Many species responded positively to habitat continuity, demonstrating that fragmentation is the main factor affecting abundance of land snail communities. Both total abundance of land snail communities and species richness were good predictors of habitat quality, snail abundance being more powerful than diversity. Aegopinella epipedostoma, Perforatella bidentata, and Helix pomatia were best at discriminating among high and poor quality forest habitats among individual species. Our study showed that among the parameters describing habitat quality, spatial and temporal continuity of riparian forest are the main factors affecting snail communities. Habitat fragmentation and the absence of suitable microhabitats for snail species preferring decaying wood lead to lower abundance and diversity of land snail communities confirming the potential of land snails as bioindicators of riparian forest quality.
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spelling doaj.art-8393d5b89faf45c78b1e2a24b36563a92022-12-21T19:16:26ZengElsevierEcological Indicators1470-160X2021-12-01132108289Exploring land snails’ response to habitat characteristics and their potential as bioindicators of riparian forest qualityVoichița Gheoca0Ana Maria Benedek1Erika Schneider2Applied Ecology Research Center, Faculty of Sciences, Lucian Blaga University of Sibiu, 5-7 Dr. Ioan Rațiu Street, 550012, Romania; Corresponding authors.Applied Ecology Research Center, Faculty of Sciences, Lucian Blaga University of Sibiu, 5-7 Dr. Ioan Rațiu Street, 550012, Romania; Corresponding authors.KIT, Karlsruhe Institute for Technology, University of Land Baden-Württemberg and Research Center of the Helmholtz Society, Institute for Geography and Geoecology, Department Aueninstitut/Institute for Wetlands Ecology, Josefstrasse 1, Rastatt D-76437, GermanyRiparian ecosystems are crucial for landscape-level biodiversity, especially in highly anthropic and agricultural areas. Although the low mobility of snails reduces their dispersal capacity and makes them vulnerable to habitat degradation, they are less commonly used as indicators. We evaluated the potential of land snails as bioindicators of riparian forest quality in central European riparian forests by surveying snail communities in relation to habitat characteristics that characterize its quality. Habitat characteristics were found to affect both snail abundance and species richness. The abundance of snail species increased with the forest continuity, forest width and abundance of leaf litter and decreased with the cover of ruderal plant species and presence of household waste deposits. Snail diversity was positively influenced by habitat continuity, forest width, and abundance of dead wood. The community composition was also sensitive to habitat characteristics, most species having their optimum in habitats with high amounts of decaying dead wood and litter. Many species responded positively to habitat continuity, demonstrating that fragmentation is the main factor affecting abundance of land snail communities. Both total abundance of land snail communities and species richness were good predictors of habitat quality, snail abundance being more powerful than diversity. Aegopinella epipedostoma, Perforatella bidentata, and Helix pomatia were best at discriminating among high and poor quality forest habitats among individual species. Our study showed that among the parameters describing habitat quality, spatial and temporal continuity of riparian forest are the main factors affecting snail communities. Habitat fragmentation and the absence of suitable microhabitats for snail species preferring decaying wood lead to lower abundance and diversity of land snail communities confirming the potential of land snails as bioindicators of riparian forest quality.http://www.sciencedirect.com/science/article/pii/S1470160X21009547Land snailsBioindicatorsRiparian forestConservationHabitat fragmentationSpecies richness
spellingShingle Voichița Gheoca
Ana Maria Benedek
Erika Schneider
Exploring land snails’ response to habitat characteristics and their potential as bioindicators of riparian forest quality
Ecological Indicators
Land snails
Bioindicators
Riparian forest
Conservation
Habitat fragmentation
Species richness
title Exploring land snails’ response to habitat characteristics and their potential as bioindicators of riparian forest quality
title_full Exploring land snails’ response to habitat characteristics and their potential as bioindicators of riparian forest quality
title_fullStr Exploring land snails’ response to habitat characteristics and their potential as bioindicators of riparian forest quality
title_full_unstemmed Exploring land snails’ response to habitat characteristics and their potential as bioindicators of riparian forest quality
title_short Exploring land snails’ response to habitat characteristics and their potential as bioindicators of riparian forest quality
title_sort exploring land snails response to habitat characteristics and their potential as bioindicators of riparian forest quality
topic Land snails
Bioindicators
Riparian forest
Conservation
Habitat fragmentation
Species richness
url http://www.sciencedirect.com/science/article/pii/S1470160X21009547
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