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Spatiotemporal monitoring of rare and elusive saproxylic beetles - A pheromone based approach

Eriksson, Björn (2022). Spatiotemporal monitoring of rare and elusive saproxylic beetles - A pheromone based approach. Diss. (sammanfattning/summary) Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae, 1652-6880
ISBN 978-91-7760-899-8
eISBN 978-91-7760-900-1
[Doctoral thesis]

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Abstract

Forest ecosystems are under severe pressure from global environmental changes and increasing demands of wood-related products. During the last century, intensified management regimes have led to the decline of many previously common forest habitats, with catastrophic effects for biodiversity. Many saproxylic beetles, which often play important roles as decomposers and food sources in natural ecosystems, are suffering population declines due to the losses and degradation of their forest habitats. As many of the species have become increasingly rare, or appear cryptic and elusive, it is often challenging to study their genuine distributions and habitat demands. In recent years, pheromone-based methodologies have begun to be applied for surveying such rare and threatened insects. In this thesis, I first identified the aggregation-sex pheromone components of three saproxylic beetles of Swedish conservation interest. In a second step, I utilised pheromone-based trapping methodologies to investigate how beetles with varying substrate and habitat demands fare in the Swedish forest landscape. By setting up large-scale monitoring studies across their distribution ranges in Southern Sweden, I was able to evaluate both their spatial and temporal population fluctuations. My results reveal large variability in species’ responses to modern forestry practices, seemingly dependent on differences in their spatiotemporal ecology. Through the high accuracy sampling, I was significantly able to alter our perception of the presence and abundance of several species within their distribution ranges. Overall, this work demonstrates the need for efficient monitoring methodologies for conservation of forest biodiversity.

Authors/Creators:Eriksson, Björn
Title:Spatiotemporal monitoring of rare and elusive saproxylic beetles - A pheromone based approach
Series Name/Journal:Acta Universitatis Agriculturae Sueciae
Year of publishing :2022
Number:2022:12
Number of Pages:88
Publisher:Swedish University of Agricultural Sciences
ISBN for printed version:978-91-7760-899-8
ISBN for electronic version:978-91-7760-900-1
ISSN:1652-6880
Language:English
Publication Type:Doctoral thesis
Article category:Other scientific
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Biochemistry and Molecular Biology
Keywords:saproxylic beetles, pheromones, Swedish forest management, dead wood, forest biodiversity, species distribution, conservation, oak, pine
URN:NBN:urn:nbn:se:slu:epsilon-p-115855
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-115855
ID Code:26888
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Protection Biology
Deposited By: SLUpub Connector
Deposited On:03 Feb 2022 09:25
Metadata Last Modified:16 May 2022 20:23

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