Small scale gradient effects on isopods (Crustacea: Oniscidea) in karstic sinkholes

Vilisics, Ferenc; Sólymos, Péter; Nagy, Antal; Farkas, Roland; Kemencei, Zita; Hornung, Elisabeth

doi:10.2478/s11756-011-0042-1

“…It has been shown that such depressions are refugia for a variety of species (Beck v. Mannagetta 1906;Horvat 1953;Vilisics et al 2011). As our previous studies revealed 2014a), the role of the large and deep forested solution dolines of Hungary in plant species preservation is especially important.…”

Section: Introductionmentioning

confidence: 79%

A comparison of the vegetation of forested and non-forested solution dolines in Hungary: a preliminary study

Bátori

¹

,

Farkas

²

,

Erdős

³

et al. 2014

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The present study compares the vegetation characteristics of two large forested and one large non-forested solution dolines in Hungary. We investigated the species composition and vegetation pattern along north to south transects (across the doline bottoms) and compared the richness of different species groups (dry and wet groups) on the doline slopes. We applied linear regression models for each slope to explore the effects of topography on species richness, and Detrended Correspondence Analysis (DCA) to detect the major gradients of floristic variation within each site. We found that the vegetation changed significantly along all transects; and, regardless of the vegetation cover, the doline bottoms contained several cool-adapted species. Variations within the two species groups were more pronounced on the south-facing slopes. The changes were similar in the forested dolines, indicating the role of forest cover in maintaining many cool-adapted species on the north-facing slopes as well. However, the number of cool-adapted species increased significantly along both slopes of the non-forested doline from the upper edge to the bottom. Contrary to our expectations, the species turnover along the slopes of the non-forested doline was lower than that along the slopes of the forested ones. We conclude that both the forested and non-forested dolines serve as refuges for many plant species adapted to different environmental conditions. Apart from providing an understanding of population patterns along environmental gradients, our results may also contribute to our understanding of an even more fundamental question for a future research agenda: the probable effects of climate change on vegetation characteristics in climatic islands with environmental conditions substantially different from the surrounding areas.

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“…As isolated or semi-isolated cool and humid enclaves, dolines are very important from a nature conservation point of view. It has been shown that such depressions are refugia for a variety of species (Beck v. Mannagetta 1906;Horvat 1953;Vilisics et al 2011). As our previous studies revealed (Bátori et al 2012;2014a), the role of the large and deep forested solution dolines of Hungary in plant species preservation is especially important.…”

Section: Introductionmentioning

confidence: 80%

A comparison of the vegetation of forested and non-forested solution dolines in Hungary: a preliminary study

Bátori

¹

,

Farkas

²

,

Erdős

³

et al. 2018

Energyo

View full text Add to dashboard Cite

The present study compares the vegetation characteristics of two large forested and one large non-forested solution dolines in Hungary. We investigated the species composition and vegetation pattern along north to south transects (across the doline bottoms) and compared the richness of different species groups (dry and wet groups) on the doline slopes. We applied linear regression models for each slope to explore the effects of topography on species richness, and Detrended Correspondence Analysis (DCA) to detect the major gradients of floristic variation within each site. We found that the vegetation changed significantly along all transects; and, regardless of the vegetation cover, the doline bottoms contained several cool-adapted species. Variations within the two species groups were more pronounced on the south-facing slopes. The changes were similar in the forested dolines, indicating the role of forest cover in maintaining many cool-adapted species on the north-facing slopes as well. However, the number of cool-adapted species increased significantly along both slopes of the non-forested doline from the upper edge to the bottom. Contrary to our expectations, the species turnover along the slopes of the non-forested doline was lower than that along the slopes of the forested ones. We conclude that both the forested and non-forested dolines serve as refuges for many plant species adapted to different environmental conditions. Apart from providing an understanding of population patterns along environmental gradients, our results may also contribute to our understanding of an even more fundamental question for a future research agenda: the probable effects of climate change on vegetation characteristics in climatic islands with environmental conditions substantially different from the surrounding areas.

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“…In Bouhedma Park, the small species A. lentus was collected mainly in the first habitat (Bouh 1) and sporadically in the two other habitats (Bouh 2 and 3). In fact, for smaller species, the preferences of microhabitats are satisfied by the existence of small places of shelter, regardless of the general characteristics of the habitat (Vilisics et al 2007(Vilisics et al , 2011. Thus, the small number of captured individuals indicates the scarcity of favorable microhabitats in the Bouhedma Park.…”

Section: Discussionmentioning

confidence: 99%

Comparison of terrestrial isopod (Crustacea: Oniscidea) assemblages from two preserved areas (Bouhedma and Chambi) in arid regions

Khila

¹

,

Zaabar

²

,

Bouslama

³

et al. 2018

The European Zoological Journal

3

0

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A total of 1290 specimens belonging to 11 species and four families were captured in two national parks, Bouhedma and Chambi. Among these species, seven belonged to Porcellionidae, and the remaining species represented Agnaridae, Armadillidae and Armadillidiidae families. Five species were common and recorded in both parks. However, Armadillidium tunisiense, Hemilepistus reaumurii and Porcellio djahizi were recorded only in Chambi while Agabiformius lentus, Armadillo officinalis and Porcellio albinus were collected only in Bouhedma. The distribution structure of the collected species was analyzed according to altitude and plant assemblages. Seasonal sampling showed that the highest abundance and species richness were recorded in spring. In both parks, the species richness decreased as the altitude increased. Arid regions sheltered specific species such as H. reaumurii and P. albinus, which were often the dominant component of the arthropod macrodecomposer guild in some habitats. The similarity analysis showed a quantitative and qualitative difference between the two parks. The two parks Bouhedma and Chambi shared five species (Leptotrichus panzerii, Porcellio laevis, P. variabilis, Porcellionides pruinosus, Armadillidium sulcatum) with areas studied in the north of Tunisia, Kroumirie, supralittoral zones and around the wetlands.

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Small scale gradient effects on isopods (Crustacea: Oniscidea) in karstic sinkholes

Cited by 30 publications

References 12 publications

A comparison of the vegetation of forested and non-forested solution dolines in Hungary: a preliminary study

A comparison of the vegetation of forested and non-forested solution dolines in Hungary: a preliminary study

A comparison of the vegetation of forested and non-forested solution dolines in Hungary: a preliminary study

Comparison of terrestrial isopod (Crustacea: Oniscidea) assemblages from two preserved areas (Bouhedma and Chambi) in arid regions

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