The response of chironomid assemblages to mineral richness gradient in the Western Carpathian helocrenes
Chironomid assemblages of helocrene springs were investigated in the Western Carpathians in order to identify potential effect of water mineral richness on the taxonomic structure of the assemblages. A complex gradient considering water chemistry and substratum was used as a measure of basicity (min...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Norwegian University of Science and Technology
2012-10-01
|
| Series: | Fauna Norvegica |
| Subjects: | |
| Online Access: | https://www.ntnu.no/ojs/index.php/fauna_norvegica/article/view/1403 |
| _version_ | 1818111667345555456 |
|---|---|
| author | Vít Syrovátka Jindriška Bojková Vanda Rádková |
| author_facet | Vít Syrovátka Jindriška Bojková Vanda Rádková |
| author_sort | Vít Syrovátka |
| collection | DOAJ |
| description | Chironomid assemblages of helocrene springs were investigated in the Western Carpathians in order to identify potential effect of water mineral richness on the taxonomic structure of the assemblages. A complex gradient considering water chemistry and substratum was used as a measure of basicity (mineral richness). Taxonomic structure, total abundance and abundance of most frequent taxa were related to this gradient with regards to two contrasting habitats: trickle (A) and water-loged soil with standing water (B). The variance in chironomid assemblage attributable to basicity was estimated and tested via PERMANOVA as well as the possible effect of the other environmental variables. The response of individual taxa was examined using GAM. The results indicate a strong relationship between basicity and substratum characteristics, with coarser mineral substrata at basic and high amount of organic matter at acidic conditions. Although water chemistry was correlated with and inseparable from these substratum properties, it could not be substituted with them, as they discriminated well only between acidic and basic springs, but did not follow the basicity gradient in either acidic or basic group of springs. Chironomid assemblage showed a strong and systematic response to the complex gradient of mineral richness, which explained the largest portion of variance in both the habitat A and B faunal data and was projected on the first axes of both NMDS ordinations. The assemblage response could be documented by the preference of several taxa for particular mineral richness conditions, while the number of taxa seemed to be highest in the middle of the basicity gradient. As only 17 samples were analysed so far, the results are considered preliminary and, hopefully, more confident results will be available in near future.
doi: 10.5324/fn.v31i0.1403.
Published online: 17 October 2012. |
| first_indexed | 2024-12-11T03:06:41Z |
| format | Article |
| id | doaj.art-26763dba372747b3b35fc74561b855bc |
| institution | Directory Open Access Journal |
| issn | 1502-4873 1891-5396 |
| language | English |
| last_indexed | 2024-12-11T03:06:41Z |
| publishDate | 2012-10-01 |
| publisher | Norwegian University of Science and Technology |
| record_format | Article |
| series | Fauna Norvegica |
| spelling | doaj.art-26763dba372747b3b35fc74561b855bc2022-12-22T01:22:56ZengNorwegian University of Science and TechnologyFauna Norvegica1502-48731891-53962012-10-013110.5324/fn.v31i0.14031381The response of chironomid assemblages to mineral richness gradient in the Western Carpathian helocrenesVít Syrovátka0Jindriška Bojková1Vanda Rádková2Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech RepublicDepartment of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, CZ- 61137 Brno, Czech RepublicDepartment of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, CZ- 61137 Brno, Czech RepublicChironomid assemblages of helocrene springs were investigated in the Western Carpathians in order to identify potential effect of water mineral richness on the taxonomic structure of the assemblages. A complex gradient considering water chemistry and substratum was used as a measure of basicity (mineral richness). Taxonomic structure, total abundance and abundance of most frequent taxa were related to this gradient with regards to two contrasting habitats: trickle (A) and water-loged soil with standing water (B). The variance in chironomid assemblage attributable to basicity was estimated and tested via PERMANOVA as well as the possible effect of the other environmental variables. The response of individual taxa was examined using GAM. The results indicate a strong relationship between basicity and substratum characteristics, with coarser mineral substrata at basic and high amount of organic matter at acidic conditions. Although water chemistry was correlated with and inseparable from these substratum properties, it could not be substituted with them, as they discriminated well only between acidic and basic springs, but did not follow the basicity gradient in either acidic or basic group of springs. Chironomid assemblage showed a strong and systematic response to the complex gradient of mineral richness, which explained the largest portion of variance in both the habitat A and B faunal data and was projected on the first axes of both NMDS ordinations. The assemblage response could be documented by the preference of several taxa for particular mineral richness conditions, while the number of taxa seemed to be highest in the middle of the basicity gradient. As only 17 samples were analysed so far, the results are considered preliminary and, hopefully, more confident results will be available in near future. doi: 10.5324/fn.v31i0.1403. Published online: 17 October 2012.https://www.ntnu.no/ojs/index.php/fauna_norvegica/article/view/1403Chironomidaeecology |
| spellingShingle | Vít Syrovátka Jindriška Bojková Vanda Rádková The response of chironomid assemblages to mineral richness gradient in the Western Carpathian helocrenes Fauna Norvegica Chironomidae ecology |
| title | The response of chironomid assemblages to mineral richness gradient in the Western Carpathian helocrenes |
| title_full | The response of chironomid assemblages to mineral richness gradient in the Western Carpathian helocrenes |
| title_fullStr | The response of chironomid assemblages to mineral richness gradient in the Western Carpathian helocrenes |
| title_full_unstemmed | The response of chironomid assemblages to mineral richness gradient in the Western Carpathian helocrenes |
| title_short | The response of chironomid assemblages to mineral richness gradient in the Western Carpathian helocrenes |
| title_sort | response of chironomid assemblages to mineral richness gradient in the western carpathian helocrenes |
| topic | Chironomidae ecology |
| url | https://www.ntnu.no/ojs/index.php/fauna_norvegica/article/view/1403 |
| work_keys_str_mv | AT vitsyrovatka theresponseofchironomidassemblagestomineralrichnessgradientinthewesterncarpathianhelocrenes AT jindriskabojkova theresponseofchironomidassemblagestomineralrichnessgradientinthewesterncarpathianhelocrenes AT vandaradkova theresponseofchironomidassemblagestomineralrichnessgradientinthewesterncarpathianhelocrenes AT vitsyrovatka responseofchironomidassemblagestomineralrichnessgradientinthewesterncarpathianhelocrenes AT jindriskabojkova responseofchironomidassemblagestomineralrichnessgradientinthewesterncarpathianhelocrenes AT vandaradkova responseofchironomidassemblagestomineralrichnessgradientinthewesterncarpathianhelocrenes |