Abiotisko un biotisko faktoru ietekme uz epigeisko bezmugurkaulnieku sugu sabiedrībām kaļķainos zāļu purvos Latvijas Piejūras zemienē
Date
2016
Authors
Rozenberga, Anna
Journal Title
Journal ISSN
Volume Title
Publisher
Latvijas Universitāte
Abstract
Kaļķaini zāļu purvi ir svarīgs aizsargājams biotops ne tikai Latvijā, bet arī visā Eiropas Savienībā. Šī darba mērķis ir noteikt kādi abiotiskie un biotiskie faktori nosaka dažādu bezmugurkaulnieku taksonu izplatību kaļķainos zāļu purvos, un vai tos ir iespējams izmantot kā bioindikatorus šo biotopu ekoloģisko izmaiņu pētīšanai. Pētījums veikts sešos purvos Latvijas Piejūras zemienē. Bezmugurkaulnieki tika ievākti ar Bārbera tipa augsnes lamatām. Tika noteikts veģetācijas sastāvs un augsnes pH. Kopā tika ievāktas 666 vaboles Coleoptera, 999 skudras Formicidae, 216 daudzkāji Diplopoda un 2052 mitrenes Oniscoidea. Skaidri izteikta saistība starp veģetāciju un bezmugurkaulnieku sugu taksoniem kaļķainos zāļu purvos netika konstatēta, savukārt, augsnes pH faktors ir būtisks tikai mitreņu populācijām.
Alkaline fens are important biotopes not only in Latvia but also in whole European Union. Aim of this research is to determine which abiotic and biotic factors have influence to different invertebrate taxai in alkaline fens and if it is possible to use those invertebrates to assess ecological changes in those biotopes. Research was made in six fens on Maritime lowlands in Latvia, invertebrates were collected with pit-fall traps and also data was collected about vegetation species, their abundance and soil pH. In total 666 Coleoptera, 999 Formicidae, 216 Diplopoda and 2052 Oniscoidea were collected. There was no obvious correlation between vegetation data and invertebrate data, but soil pH was important factor only for Oniscoidea populations. Future research is needed containing much more abiotic and biotic factors.
Alkaline fens are important biotopes not only in Latvia but also in whole European Union. Aim of this research is to determine which abiotic and biotic factors have influence to different invertebrate taxai in alkaline fens and if it is possible to use those invertebrates to assess ecological changes in those biotopes. Research was made in six fens on Maritime lowlands in Latvia, invertebrates were collected with pit-fall traps and also data was collected about vegetation species, their abundance and soil pH. In total 666 Coleoptera, 999 Formicidae, 216 Diplopoda and 2052 Oniscoidea were collected. There was no obvious correlation between vegetation data and invertebrate data, but soil pH was important factor only for Oniscoidea populations. Future research is needed containing much more abiotic and biotic factors.
Description
Keywords
Bioloģija , vaboles , skudras , daudzkāji , mitrenes , kaļķaini zāļu purvi