Gastrophysa viridula (Coleoptera: Chrysomelidae) in the Czech Republic: Decline in a once abundant invasive oligophagous consumer of Rumex
While the progress of the spread of invasive species of insects in new geographical areas are usually intensively monitored, the decline of these species often escape attention and is poorly documented. In this study, we record the decline in abundance of Gastrophysa viridula (DeGeer), an invasive o...
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Institute of Entomology, Biology Centre, Czech Academy of Science
2021
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oai:doaj.org-article:5757a652ef184a4393369486aa46fbec2021-11-05T15:23:15ZGastrophysa viridula (Coleoptera: Chrysomelidae) in the Czech Republic: Decline in a once abundant invasive oligophagous consumer of Rumex1210-57591802-882910.14411/eje.2021.026https://doaj.org/article/5757a652ef184a4393369486aa46fbec2021-09-01T00:00:00Zhttps://www.eje.cz/artkey/eje-202101-0026_gastrophysa_viridula_coleoptera_chrysomelidae_in_the_czech_republic_decline_in_a_once_abundant_invasive_oli.phphttps://doaj.org/toc/1210-5759https://doaj.org/toc/1802-8829While the progress of the spread of invasive species of insects in new geographical areas are usually intensively monitored, the decline of these species often escape attention and is poorly documented. In this study, we record the decline in abundance of Gastrophysa viridula (DeGeer), an invasive oligophagous consumer of dock (Rumex spp.). This species originally inhabited Alpine regions. In the late 1800s, G. viridula was recorded in montane areas in the Czech Republic and then throughout this country. Gastrophysa viridula was very abundant in 1995-1999, when we found it in all of the 177 stands of R. obtusifolius inspected in western Czech Republic. In a repeated study of its occurrence in the same area from 2019-2020, this species was present in < 30% of 434 of the stands inspected and was only abundant (≥ 55% of plants in the stand infested by G. viridula) in < 4% of these stands. Thus the local occurrence and abundance of G. viridula had decreased significantly. Of the possible reasons for this decline the most probable are the effect of climate warming on host plant seasonality, changes in agricultural use of grasslands and fragmentation of large stands of dock.Zdenka MARTINKOVAAlois HONEKPavel SASKAInstitute of Entomology, Biology Centre, Czech Academy of Sciencearticlechrysomelidaegastrophysa viridulagreen dock beetleabundancedeclineherbivorecontrol of rumexczech republicZoologyQL1-991ENEuropean Journal of Entomology, Vol 118, Iss 1, Pp 250-254 (2021) |
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chrysomelidae gastrophysa viridula green dock beetle abundance decline herbivore control of rumex czech republic Zoology QL1-991 |
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chrysomelidae gastrophysa viridula green dock beetle abundance decline herbivore control of rumex czech republic Zoology QL1-991 Zdenka MARTINKOVA Alois HONEK Pavel SASKA Gastrophysa viridula (Coleoptera: Chrysomelidae) in the Czech Republic: Decline in a once abundant invasive oligophagous consumer of Rumex |
description |
While the progress of the spread of invasive species of insects in new geographical areas are usually intensively monitored, the decline of these species often escape attention and is poorly documented. In this study, we record the decline in abundance of Gastrophysa viridula (DeGeer), an invasive oligophagous consumer of dock (Rumex spp.). This species originally inhabited Alpine regions. In the late 1800s, G. viridula was recorded in montane areas in the Czech Republic and then throughout this country. Gastrophysa viridula was very abundant in 1995-1999, when we found it in all of the 177 stands of R. obtusifolius inspected in western Czech Republic. In a repeated study of its occurrence in the same area from 2019-2020, this species was present in < 30% of 434 of the stands inspected and was only abundant (≥ 55% of plants in the stand infested by G. viridula) in < 4% of these stands. Thus the local occurrence and abundance of G. viridula had decreased significantly. Of the possible reasons for this decline the most probable are the effect of climate warming on host plant seasonality, changes in agricultural use of grasslands and fragmentation of large stands of dock. |
format |
article |
author |
Zdenka MARTINKOVA Alois HONEK Pavel SASKA |
author_facet |
Zdenka MARTINKOVA Alois HONEK Pavel SASKA |
author_sort |
Zdenka MARTINKOVA |
title |
Gastrophysa viridula (Coleoptera: Chrysomelidae) in the Czech Republic: Decline in a once abundant invasive oligophagous consumer of Rumex |
title_short |
Gastrophysa viridula (Coleoptera: Chrysomelidae) in the Czech Republic: Decline in a once abundant invasive oligophagous consumer of Rumex |
title_full |
Gastrophysa viridula (Coleoptera: Chrysomelidae) in the Czech Republic: Decline in a once abundant invasive oligophagous consumer of Rumex |
title_fullStr |
Gastrophysa viridula (Coleoptera: Chrysomelidae) in the Czech Republic: Decline in a once abundant invasive oligophagous consumer of Rumex |
title_full_unstemmed |
Gastrophysa viridula (Coleoptera: Chrysomelidae) in the Czech Republic: Decline in a once abundant invasive oligophagous consumer of Rumex |
title_sort |
gastrophysa viridula (coleoptera: chrysomelidae) in the czech republic: decline in a once abundant invasive oligophagous consumer of rumex |
publisher |
Institute of Entomology, Biology Centre, Czech Academy of Science |
publishDate |
2021 |
url |
https://doaj.org/article/5757a652ef184a4393369486aa46fbec |
work_keys_str_mv |
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_version_ |
1718444162174418944 |