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Betydelsen av återskapade våtmarkers ålder, area och fiskförekomst för simfåglar: En biologistudie ur ett lärarperspektiv
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, Faculty of Science & Engineering.
2015 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
The significance of restored wetlands age, area and fish abundance for waterfowls : A biological study from a teacher's perspective (English)
Abstract [sv]

Återskapade våtmarker är av stor vikt för den biologiska mångfalden och särskilt viktiga för hotade simfåglar. För att öka kunskapen kring hur faktorer som våtmarkers area, ålder och fiskförekomst påverkar simfåglar i återskapade våtmarker studerades fyra våtmarker i Tinnerö naturreservat, Linköpings kommun. Av speciellt intresse var svarthakedoppingen (Podiceps auritus). Antalet svarthakedoppingar i de studerade våtmarkerna hade en positiv utveckling under våtmarkernas första år. Dock minskade antalet svarthakedoppingar i området mellan år 2009 och 2011. År 2011, efter anläggandet av Ekängsdalsgångens våtmarker, stabiliserades antalet igen. Slutsatsen är att nyskapade, fiskfria våtmarker ger goda förutsättningar för hotade arter såsom svarthakedoppingen. Utöver detta undersöktes även de didaktiska möjligheter, utifrån Skolverkets ämnes- och kursplaner för biologi, som exkursioner erbjuder.

Abstract [en]

Restored wetlands are of great importance for biodiversity, and especially important for endangered waterfowl. In order to increase knowledge about how factors such as wetlands area, age, and fish occurrence affect waterfowl in restored wetlands four wetlands in Tinnerö nature reserve, Linköping municipality, were studied. Of special interest was the horned grebe (Podiceps auritus). The number of horned grebes in the studied wetlands had seen a positive development during the wetlands first years. Between 2009 and 2011, the number of horned grebes in the area declined. The numbers were stabilized in 2011, after the establishment of Ekängsdalsgångens wetlands. The conclusion is that newly created, fish-free wetlands provide good conditions for endangered species such as the horned grebe. In addition to this the study also examined the didactic opportunities, based on the curriculum for biology, which excursions offers.

Place, publisher, year, edition, pages
2015. , 20 p.
Keyword [en]
Recovered wetland, Bird, Waterfowl, Area, Age, Fish occurrence, Horned grebe, Excursion, Didactic, Field study
Keyword [sv]
Återskapad våtmark, Fågel, Simfågel, Area, Ålder, Fiskförekomst, Svarthakedopping, Exkursion, Didaktik, Fältstudie
National Category
Ecology
Identifiers
URN: urn:nbn:se:liu:diva-119444ISRN: LiTH-IFM- Ex--15/3108--SEOAI: oai:DiVA.org:liu-119444DiVA: diva2:822974
Subject / course
Biology, Teacher Education
Presentation
2015-06-03, 14:15 (Swedish)
Supervisors
Examiners
Available from: 2015-06-25 Created: 2015-06-17 Last updated: 2015-06-25Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • nn-NB
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Output format
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