Distribution and the impact of outfield drainage on carabids (Coleoptera, Carabidae) in north western Eysturoy, Faroe Islands - Útbreiðsía av svartaklukkum (Coleoptera, Carabidae) i Útnyrðingseysturoy og hvussu ávirkast hon av avveiting

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Published Dec 31, 2008
Willian Simonsen Anna Maria Fosaa Erla Olsen Jana Mikkelsen

Abstract

Abstract

During an Environmental Impact Assessment (EIA), Carabidae was one of the factors used to assess the impact of land drainage for hydropower. The areas investigated were outfields; these areas included a broad range of habitats, and therefore the distribution of Carabidae in the areas in question provided information about the distribution of Carabidae as a whole, which this paper aims to describe. Fourteen of the 26 previously recorded Carabidae species were found. One species Agonumfuliginosum was recorded for the first time in the Faroe Islands. Another Carabidae Bembidion bruxellense was recorded for the first time in Eysturoy. Altitude and season were seen to influence the abundance of some carabids and this is related to the distribution of preferred habitats and to reproductive cycles. The distribution of Carabidae and theeffects of outfield drainage are discussed in this paper.

Úrtak

Ein árinskanning varð gjørd fyri at finna fram til, hvussu avveiting av lendi kann ávirka lívverurnar í lendinum. Eitt nú vórðu svartaklukkur kannaðar. Kannaðu økini, ið øll vóru uttangarðs, fevndu um ymisk sløg av lendi. Tí gav hendan kanning nógva vitan um útbreiðslu hjá svartaklukkum yvirhøvur, ið eisini er ætlanin at lýsa við hesi grein. Fjúrtan av teim 26 kendu svartaklukkusløgunum vórðu funnin. Eitt slag varð skrásett fyri fyrstu ferð í Føroyum, Agonumfuliginosum. Ein onnur svartaklukka Bembidion bruxellense varð skrásett fyri fyrstu ferð í Eysturoy. Hædd og árstíð høvdu ávirkan á útbreiðsluna av svartaklukkunum. Hetta varð sett í samband við aðra vitan um sløgini, eitt nú hvørji búøki tey nýta og nær á árinum tey makast.

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Section
Natural Sciences