Gullrisbock (Phytoecia nigricornis) i grus- och sandtäkter i Halland.

This dissertation is done as a preparatory step for the action plan of environmental protection shall issue to preserve the Phytoecia nigricornis in the country when it is red-listed and classified as vulnerable (VU). My task was to investigate the prevalence of the Phytoecia nigricornis in Halland...

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Main Author: Bergman, Lina
Format: Others
Language:Swedish
Published: Högskolan i Halmstad, Sektionen för ekonomi och teknik (SET) 2011
Online Access:http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-17547
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spelling ndltd-UPSALLA1-oai-DiVA.org-hh-175472013-01-08T13:42:43ZGullrisbock (Phytoecia nigricornis) i grus- och sandtäkter i Halland.sweBergman, LinaHögskolan i Halmstad, Sektionen för ekonomi och teknik (SET)2011This dissertation is done as a preparatory step for the action plan of environmental protection shall issue to preserve the Phytoecia nigricornis in the country when it is red-listed and classified as vulnerable (VU). My task was to investigate the prevalence of the Phytoecia nigricornis in Halland County. They wanted to see if it existed in Halland (Ehnström, 1999). If it did not exist they wanted to know how to improve its habitat. the Phytoecia nigricornis is difficult to inventory because when it is larvae it lives in the roots and lower parts of the trunk of the Solidago Virgaurea plant and the adult beetles only keeps to Solidago Virgaurea by mating and egg laying and larval caterpillars when they hatch (Bily, 1989; Molander, 1999). Often it is overlooked or missed, and one question was whether it existed  in the whole country or only in those parts where it was previously found in, Skåne, Blekinge and Östergötland (Ehnström, 1999). One problem for the Phytoecia nigricornis is that their habitats is declining. Because the gravel and sand is an ending resource which means that today more and more go on to find materials that will replace the gravel and sand. Gravel and sand pits are closed and then gets overgrown which means that the Solidago Virgaurea is outcompeted by other stronger plants. In early May, the beginning of the plan of the thesis and inventory were made. Premises suitable for the inventory was investigated and eventually was 16 of them elected. 9 of these facilities would, in the County Administrative Board's previous inventories have Solidago Virgaurea. Once the premises had been selected an inventory protocol were formed (Appendix 5) where information of the premises would be noted such as the weather and so on. The first inventory were outcarried on June 13th. The premises that contained Solidago Virgaurea were inventoried twice each and the other only once. The last inventory  was conducted on July 6th. The inventories were carried out during this period because it is during this time Phytoecia nigricornis lay their eggs on Solidago Virgaurea and that's when you can find them in one place at the same time. None of the inventories was carried out when it rained or blew over small breezes because  under these conditions Phytoecia nigricornis is  hiding. After the inventories were compiled information was collected and then the report was written. No Phytoecia nigricornis were found during the inventories. Student thesisinfo:eu-repo/semantics/bachelorThesistexthttp://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-17547application/pdfinfo:eu-repo/semantics/openAccess
collection NDLTD
language Swedish
format Others
sources NDLTD
description This dissertation is done as a preparatory step for the action plan of environmental protection shall issue to preserve the Phytoecia nigricornis in the country when it is red-listed and classified as vulnerable (VU). My task was to investigate the prevalence of the Phytoecia nigricornis in Halland County. They wanted to see if it existed in Halland (Ehnström, 1999). If it did not exist they wanted to know how to improve its habitat. the Phytoecia nigricornis is difficult to inventory because when it is larvae it lives in the roots and lower parts of the trunk of the Solidago Virgaurea plant and the adult beetles only keeps to Solidago Virgaurea by mating and egg laying and larval caterpillars when they hatch (Bily, 1989; Molander, 1999). Often it is overlooked or missed, and one question was whether it existed  in the whole country or only in those parts where it was previously found in, Skåne, Blekinge and Östergötland (Ehnström, 1999). One problem for the Phytoecia nigricornis is that their habitats is declining. Because the gravel and sand is an ending resource which means that today more and more go on to find materials that will replace the gravel and sand. Gravel and sand pits are closed and then gets overgrown which means that the Solidago Virgaurea is outcompeted by other stronger plants. In early May, the beginning of the plan of the thesis and inventory were made. Premises suitable for the inventory was investigated and eventually was 16 of them elected. 9 of these facilities would, in the County Administrative Board's previous inventories have Solidago Virgaurea. Once the premises had been selected an inventory protocol were formed (Appendix 5) where information of the premises would be noted such as the weather and so on. The first inventory were outcarried on June 13th. The premises that contained Solidago Virgaurea were inventoried twice each and the other only once. The last inventory  was conducted on July 6th. The inventories were carried out during this period because it is during this time Phytoecia nigricornis lay their eggs on Solidago Virgaurea and that's when you can find them in one place at the same time. None of the inventories was carried out when it rained or blew over small breezes because  under these conditions Phytoecia nigricornis is  hiding. After the inventories were compiled information was collected and then the report was written. No Phytoecia nigricornis were found during the inventories.
author Bergman, Lina
spellingShingle Bergman, Lina
Gullrisbock (Phytoecia nigricornis) i grus- och sandtäkter i Halland.
author_facet Bergman, Lina
author_sort Bergman, Lina
title Gullrisbock (Phytoecia nigricornis) i grus- och sandtäkter i Halland.
title_short Gullrisbock (Phytoecia nigricornis) i grus- och sandtäkter i Halland.
title_full Gullrisbock (Phytoecia nigricornis) i grus- och sandtäkter i Halland.
title_fullStr Gullrisbock (Phytoecia nigricornis) i grus- och sandtäkter i Halland.
title_full_unstemmed Gullrisbock (Phytoecia nigricornis) i grus- och sandtäkter i Halland.
title_sort gullrisbock (phytoecia nigricornis) i grus- och sandtäkter i halland.
publisher Högskolan i Halmstad, Sektionen för ekonomi och teknik (SET)
publishDate 2011
url http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-17547
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