Quantification of land use threats to a flagship species and its meadow habitats within urban landscape

In recent decades insects have experienced severe declines worldwide, and the main threats to their populations include the loss, fragmentation and deterioration of their habitats, due to land use changes such as urbanisation, afforestation, and natural succession. While the impacts of such threats...

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Main Authors: K. Krzosek, P. Nowicki
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:The European Zoological Journal
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/24750263.2024.2447446
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author K. Krzosek
P. Nowicki
author_facet K. Krzosek
P. Nowicki
author_sort K. Krzosek
collection DOAJ
description In recent decades insects have experienced severe declines worldwide, and the main threats to their populations include the loss, fragmentation and deterioration of their habitats, due to land use changes such as urbanisation, afforestation, and natural succession. While the impacts of such threats have been the subject of numerous investigations, there is a lack of studies that analyse them jointly, and assess their relative importance, especially in urban and peri-urban landscapes. Based on extensive monitoring data (spanning the period 2003–2022), we evaluated negative effects of expansion of built-up areas, afforestation of meadows, and succession due to meadow abandonment on habitat availability and quality as well as local population dynamics of a flagship butterfly Phengaris alcon in an urban landscape. Direct urbanisation pressure had the least impact on the metapopulation decrease in absolute terms, because it only affected poor-quality meadow fragments. In contrast, afforestation targeted relatively well-preserved meadows, and was responsible for substantial habitat loss and was the predominant reason for the decline in butterfly numbers. The decline caused by succession was relatively slow, but the gravity of this threat is increased by the fact that it is widespread and affects virtually all meadows in the region. All concerned conservation efforts should primarily be aimed at halting ill-advised afforestation of meadow habitats in urban landscapes. This would require changing the paradigm according to which afforestation is often perceived as an optimal remedy for various environmental problems in urban landscapes, including biodiversity crisis.
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spelling doaj-art-6d99242f08364b6ca79cbdd2937a56572025-01-21T11:19:52ZengTaylor & Francis GroupThe European Zoological Journal2475-02632025-12-0192118219410.1080/24750263.2024.2447446Quantification of land use threats to a flagship species and its meadow habitats within urban landscapeK. Krzosek0P. Nowicki1Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Kraków, PolandInstitute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Kraków, PolandIn recent decades insects have experienced severe declines worldwide, and the main threats to their populations include the loss, fragmentation and deterioration of their habitats, due to land use changes such as urbanisation, afforestation, and natural succession. While the impacts of such threats have been the subject of numerous investigations, there is a lack of studies that analyse them jointly, and assess their relative importance, especially in urban and peri-urban landscapes. Based on extensive monitoring data (spanning the period 2003–2022), we evaluated negative effects of expansion of built-up areas, afforestation of meadows, and succession due to meadow abandonment on habitat availability and quality as well as local population dynamics of a flagship butterfly Phengaris alcon in an urban landscape. Direct urbanisation pressure had the least impact on the metapopulation decrease in absolute terms, because it only affected poor-quality meadow fragments. In contrast, afforestation targeted relatively well-preserved meadows, and was responsible for substantial habitat loss and was the predominant reason for the decline in butterfly numbers. The decline caused by succession was relatively slow, but the gravity of this threat is increased by the fact that it is widespread and affects virtually all meadows in the region. All concerned conservation efforts should primarily be aimed at halting ill-advised afforestation of meadow habitats in urban landscapes. This would require changing the paradigm according to which afforestation is often perceived as an optimal remedy for various environmental problems in urban landscapes, including biodiversity crisis.https://www.tandfonline.com/doi/10.1080/24750263.2024.2447446AfforestationPhengaris (= Maculinea) alconsemi-natural grasslandssuccessionurbanisation
spellingShingle K. Krzosek
P. Nowicki
Quantification of land use threats to a flagship species and its meadow habitats within urban landscape
The European Zoological Journal
Afforestation
Phengaris (= Maculinea) alcon
semi-natural grasslands
succession
urbanisation
title Quantification of land use threats to a flagship species and its meadow habitats within urban landscape
title_full Quantification of land use threats to a flagship species and its meadow habitats within urban landscape
title_fullStr Quantification of land use threats to a flagship species and its meadow habitats within urban landscape
title_full_unstemmed Quantification of land use threats to a flagship species and its meadow habitats within urban landscape
title_short Quantification of land use threats to a flagship species and its meadow habitats within urban landscape
title_sort quantification of land use threats to a flagship species and its meadow habitats within urban landscape
topic Afforestation
Phengaris (= Maculinea) alcon
semi-natural grasslands
succession
urbanisation
url https://www.tandfonline.com/doi/10.1080/24750263.2024.2447446
work_keys_str_mv AT kkrzosek quantificationoflandusethreatstoaflagshipspeciesanditsmeadowhabitatswithinurbanlandscape
AT pnowicki quantificationoflandusethreatstoaflagshipspeciesanditsmeadowhabitatswithinurbanlandscape