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Giedrius Švitra
8Publications
5H-index
95Citations
Publications 8
Newest
Published on Apr 1, 2019in Journal of Insect Conservation 1.56
Dirk Maes27
Estimated H-index: 27
(Research Institute for Nature and Forest),
Rudi Verovnik14
Estimated H-index: 14
(Butterfly Conservation)
+ 66 AuthorsSue Collins7
Estimated H-index: 7
(Butterfly Conservation)
Red Lists are very valuable tools in nature conservation at global, continental and (sub-) national scales. In an attempt to prioritise conservation actions for European butterflies, we compiled a database with species lists and Red Lists of all European countries, including the Macaronesian archipelagos (Azores, Madeira and Canary Islands). In total, we compiled national species lists for 42 countries and national Red Lists for 34 of these. The most species-rich countries in Europe are Italy, R...
5 Citations Source Cite
András Tartally11
Estimated H-index: 11
(University of Copenhagen),
Jeremy A. Thomas36
Estimated H-index: 36
(University of Oxford)
+ 37 AuthorsZsolt Czekes5
Estimated H-index: 5
The range of hosts exploited by a parasite is determined by several factors, including host availability, infectivity and exploitability. Each of these can be the target of natural selection on both host and parasite, which will determine the local outcome of interactions, and potentially lead to coevolution. However, geographical variation in host use and specificity has rarely been investigated. Maculinea (=Phengaris) butterflies are brood parasites of Myrmica ants that are patchily distribute...
2 Citations Source Cite
Published on Apr 1, 2015
Chris van Swaay23
Estimated H-index: 23
,
Arco J. van Strien22
Estimated H-index: 22
+ 39 AuthorsRuth Escobés1
Estimated H-index: 1
This report presents the fifth version of the European Grassland Butterfly Indicator, one of the EU biodiversity indicators of the European Environment Agency.
2 Citations
Published on Jan 1, 2013
Chris van Swaay23
Estimated H-index: 23
,
Arco J. van Strien22
Estimated H-index: 22
+ 25 AuthorsGiedrius Švitra5
Estimated H-index: 5
This report presents the European Grassland Butterfly Indicator, based on national Butterfly Monitoring Schemes (BMS) in 19 countries across Europe, most of them in the European Union. The indicator shows that since 1990 till 2011 butterfly populations have declined by almost 50 %, indicating a dramatic loss of grassland biodiversity. This also means the situation has not improved since the first version of the indicator published in 2005. Of the 17 species, 8 have declined in Europe, 2 have rem...
26 Citations Source Cite
Published on May 1, 2012in Insect Conservation and Diversity 2.09
Marcin Sielezniew12
Estimated H-index: 12
(University of Białystok),
Robert Rutkowski9
Estimated H-index: 9
(Museum and Institute of Zoology)
+ 3 AuthorsGiedrius Švitra5
Estimated H-index: 5
. 1. The endangered butterfly Phengaris alcon exists in two ecotypes (P. ‘alcon’ and P. ‘rebeli’), which inhabit contrasting biotopes (wet and warm/dry grasslands respectively) and use different larval food plants. The initially flower-bud-feeding caterpillars complete their development as social parasites of Myrmica ants, and the specificity of these relationships shows geographical variation. 2. We studied the genetic structure of 16 populations (365 individuals) of both ecotypes in eastern Eu...
27 Citations Source Cite
Published on Jan 1, 2010
C Vanswaay8
Estimated H-index: 8
,
Strien van A. J9
Estimated H-index: 9
+ 23 AuthorsEugenie C. Regan13
Estimated H-index: 13
25 Citations
Published on Jan 1, 2010
C Vanswaay8
Estimated H-index: 8
,
Alexander Harpke11
Estimated H-index: 11
+ 22 AuthorsEugenie C. Regan13
Estimated H-index: 13
5 Citations
Published on Jan 1, 2010in Polish Journal of Entomology
Giedrius Švitra5
Estimated H-index: 5
,
Marcin Sielezniew12
Estimated H-index: 12
(University of Białystok)
A population of the endangered butterfly Marsh Fritillary Euphydryas aurinia, using exclusively Gentiana cruciata as a larval food plant, was recorded for the first time in the valley of the Dksta river (Vilnius administrative district) in Lithuania . Caterpillars were observed both in summer when they lived gregariously in numerous webs spun on gentians, and in spring when they were feeding on new shoots or basking in the sun. The butterfly is considered as dependent on Suc- cissa pratensis in ...
3 Citations
1