@article{
 title = {Biodiversity and structure of spider communities along a metal pollution gradient.},
 type = {article},
 year = {2012},
 identifiers = {[object Object]},
 keywords = {hypothesis á domination patterns,metals pollution á biodiversity,spiders á soil pollution,á epigeic,á intermediate disturbance},
 websites = {http://www.ncbi.nlm.nih.gov/pubmed/22543960},
 month = {4},
 day = {28},
 id = {03925e4e-9848-3f20-8911-d8edd22b2455},
 created = {2012-05-04T18:43:10.000Z},
 accessed = {2012-05-02},
 file_attached = {true},
 profile_id = {5d984c91-b960-31d5-af69-15616d2a7c9e},
 group_id = {3addd0f7-d578-34d3-be80-24022cc062a1},
 last_modified = {2017-03-14T12:29:49.371Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 citation_key = {Zmudzki2012},
 folder_uuids = {c79c253f-15fa-47cb-81c0-d80aed245136},
 private_publication = {false},
 abstract = {The objective of the study was to determine whether long-term metal pollution affects communities of epigeal spiders (Aranea), studied at three taxonomic levels: species, genera, and families. Biodiversity was defined by three indices: the Hierarchical Richness Index (HRI), Margalef index (D(M)) and Pielou evenness index (J). In different ways the indices describe taxa richness and the distribution of individuals among taxa. The dominance pattern of the communities was described with four measures: number of dominant species at a site, percentage of dominant species at a site, average dominant species abundance at a site, and the share of the most numerous species (Alopecosa cuneata) at a site. Spiders were collected along a metal pollution gradient in southern Poland, extending ca. 33 km from zinc and lead smelter to an uncontaminated area. The zinc concentration in soil was used as the pollution index.The study revealed a significant effect of metal pollution on spider biodiversity as described by HRI for species (p = 0.039), genera (p = 0.0041) and families (p = 0.0147), and by D(M) for genera (p = 0.0259) and families (p = 0.0028). HRI correlated negatively with pollution level, while D(M) correlated positively. This means that although broadly described HRI diversity decreased with increasing pollution level, species richness increased with increasing contamination. Mesophilic meadows were generally richer. Pielou (J) did not show any significant correlations. There were a few evidences for the intermediate disturbance hypothesis: certain indices reached their highest values at moderate pollution levels rather than at the cleanest or most polluted sites.},
 bibtype = {article},
 author = {Zmudzki, Sebatian and Laskowski, Ryszard},
 journal = {Ecotoxicology (London, England)}
}

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HRI correlated negatively with pollution level, while D(M) correlated positively. This means that although broadly described HRI diversity decreased with increasing pollution level, species richness increased with increasing contamination. Mesophilic meadows were generally richer. Pielou (J) did not show any significant correlations. 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HRI correlated negatively with pollution level, while D(M) correlated positively. This means that although broadly described HRI diversity decreased with increasing pollution level, species richness increased with increasing contamination. Mesophilic meadows were generally richer. Pielou (J) did not show any significant correlations. 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