Industrial and post-industrial habitats serve as critical refugia for pioneer species of newly identified arthropod assemblages associated with reed galls

Gravel-sand river terraces were nearly eliminated from central European landscape by river channelization. Monotypic stands of common reed (Phragmites australis) growing on such terraces are often stressed by drought, which makes them vulnerable to Lipara spp. (Diptera: Chloropidae) gallmakers. Alth...

Full description

Saved in:

Bibliographic Details
Published in:	Biodiversity and conservation Vol. 25; no. 5; pp. 827 - 863
Main Authors:	Bogusch, Petr, Macek, Jan, Janšta, Petr, Kubík, Štěpán, Řezáč, Milan, Holý, Kamil, Malenovský, Igor, Baňař, Petr, Mikát, Miroslav, Astapenková, Alena, Heneberg, Petr
Format:	Journal Article
Language:	English
Published:	Dordrecht Springer Netherlands 01-05-2016 Springer Springer Nature B.V
Subjects:	Analysis Aquatic plants Arachnida Arthropoda Arthropods Biodiversity Biomedical and Life Sciences Channeling channelization Chloropidae Climate Change/Climate Change Impacts Coleoptera Collembola Community ecology Conservation biology Conservation Biology/Ecology Dermaptera Dimorphopterus spinolae Diptera Drought Ecological succession Ecology ecosystem engineers Ecosystems fish ponds Floodplains Freshwater galls Gasteruption Gravel Habitats Hemiptera Human influences Hylaeus Hymenoptera inquilinism landscapes Lepidoptera Life Sciences Lignite Limestone Lipara middle-aged adults Nesting Neuroptera new species Original Paper Oulema parasitoids Phragmites australis pioneer species Plant succession Psocoptera Raphidioptera Rare species refuge habitats Refugia Rivers Sand Sand, gravel and stone industry Sandpits streams Terraces Thysanoptera winter Czech Republic Czech Rep Community structure Life-history traits Biodiversity conservation Post-industrial habitats Emergence traps Hydric restoration
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Gravel-sand river terraces were nearly eliminated from central European landscape by river channelization. Monotypic stands of common reed (Phragmites australis) growing on such terraces are often stressed by drought, which makes them vulnerable to Lipara spp. (Diptera: Chloropidae) gallmakers. Although Lipara are considered ecosystem engineers, only fragmentary information is available on the biology of their parasitoids and inquilines. We analyzed the assemblages of arthropods (Arachnida, Collembola, Dermaptera, Psocoptera, Thysanoptera, Hemiptera, Raphidioptera, Neuroptera, Coleoptera, Diptera, Lepidoptera and Hymenoptera) that emerged from 17,791 Lipara-induced galls collected in winter from 30 reed beds in the Czech Republic, 15 of which were situated at (post)industrial sites (gravel-sandpits, tailing ponds, limestone quarries, colliery dumps, and reclaimed lignite open-cast mines) and 15 were in near-natural habitats (medieval fishponds, and river and stream floodplains). The Chao-1 estimator indicated 229.3 ± 18.1 species in reed galls at (post)industrial and 218.1 ± 23.6 species at near-natural sites, with the Sørensen index reaching only 0.58. We identified 18 red-listed species and four new species for the Czech Republic (Gasteruption phragmiticola, Echthrodelphax fairchildii, Haplogonatopus oratorius and Enclisis sp.), representing mostly obligate (64 %) or facultative (9 %) reed specialists. We propose that Lipara gall-associated assemblages undergo a long-term cyclic ecological succession. During first 10 years after reed bed formation, only Lipara spp. and several other species occur. During next decades, the reed beds host species-rich assemblages with numerous pioneer species (Singa nitidula, Polemochartus melas) that critically depend on presence of prior disturbances. Middle-aged reed beds (near medieval fishponds) are prevalently enriched in common species only (Oulema duftschmidi, Dimorphopterus spinolae). Habitats with the longest historical continuity (river floodplains) host again species-rich assemblages with several rare species that probably require long-term habitat continuity (Homalura tarsata, Hylaeus moricei). Landscape dynamics is thus critical for the persistence of a full spectrum of reed gall inquilines, with (post)industrials serving as the only refugia for pioneer species ousted from their key nesting habitats at once cyclically disturbed gravel-sand river terraces.
Bibliography:	http://dx.doi.org/10.1007/s10531-016-1070-5 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0960-3115 1572-9710
DOI:	10.1007/s10531-016-1070-5