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| 2. |
- Marcinczak, S., et al.
(författare)
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Patterns of socioeconomic segregation and mix in the capital cities of fast-track reforming post-socialist countries
- 2015
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Ingår i: Annals of the Association of American Geographers. - : Informa UK Limited. - 0004-5608 .- 1467-8306. ; 105:1, s. 183-202
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Tidskriftsartikel (refereegranskat)abstract
- Socioeconomic disparities have been rising on both sides of the Atlantic for the last forty years. This study illuminates the relationship among economic inequality, other contextual and institutional factors, and socioeconomic intraurban segregation in Eastern Europe. We draw our empirical evidence from the capital cities of so-called fast-track reforming postsocialist countries: Estonia, Hungary, Lithuania, Poland, and the Czech Republic. The analysis consists of two stages. First, we use the traditional indexes of segregation to assess the global levels of socioeconomic segregation in the case cities. Second, we investigate the global patterns and local geographies of socioeconomic residential intermixing and introduce a typology of neighborhoods based on the socio-occupational composition of their residential tracts. Despite rapidly growing income inequality, the levels of socioeconomic segregation in the postsocialist city are either low or very low. The scale of segregation differs between the cities and the patterns of residential intermixing in the large cities of central and Eastern Europe are fundamentally different from those found in the Baltic states. The results lead to two important conclusions. One is that the link between socioeconomic distance and spatial distance in postsocialist cities is moderately sensitive to the level of economic inequality and to other contributory factors. The other key finding is that inertia effects have offset the immediate catalyzing effect of economic liberalization, globalization, and growing socioeconomic inequality on the patterns of segregation, at least in the first decade after the collapse of socialism.
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| 3. |
- Murillo-Ramos, Leidys, et al.
(författare)
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Molecular phylogeny, classification, biogeography and diversification patterns of a diverse group of moths (Geometridae : Boarmiini)
- 2021
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Ingår i: Molecular Phylogenetics and Evolution. - : Elsevier BV. - 1055-7903 .- 1095-9513. ; 162
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Tidskriftsartikel (refereegranskat)abstract
- Understanding how and why some groups have become more species-rich than others, and how past biogeography may have shaped their current distribution, are questions that evolutionary biologists have long attempted to answer. We investigated diversification patterns and historical biogeography of a hyperdiverse lineage of Lepidoptera, the geometrid moths, by studying its most species-rich tribe Boarmiini, which comprises ca. 200 genera and ca. known 3000 species. We inferred the evolutionary relationships of Boarmiini based on a dataset of 346 taxa, with up to eight genetic markers under a maximum likelihood approach. The monophyly of Boarmiini is strongly supported. However, the phylogenetic position of many taxa does not agree with current taxonomy, although the monophyly of most major genera within the tribe is supported after minor adjustments. Three genera are synonymized, one new combination is proposed, and four species are placed in incertae sedis within Boarmiini. Our results support the idea of a rapid initial diversification of Boarmiini, which also implies that no major taxonomic subdivisions of the group can currently be proposed. A time-calibrated tree and biogeographical analyses suggest that boarmiines appeared in Laurasia ca. 52 Mya, followed by dispersal events throughout the Australasian, African and Neotropical regions. Most of the transcontinental dispersal events occurred in the Eocene, a period of intense geological activity and rapid climate change. Diversification analyses showed a relatively constant diversification rate for all Boarmiini, except in one clade containing the species-rich genus Cleora. The present work represents a substantial contribution towards understanding the evolutionary origin of Boarmiini moths. Our results, inevitably biased by taxon sampling, highlight the difficulties with working on species-rich groups that have not received much attention outside of Europe. Specifically, poor knowledge of the natural history of geometrids (particularly in tropical clades) limits our ability to identify key innovations underlying the diversification of boarmiines.
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| 4. |
- Parmesan, C, et al.
(författare)
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Poleward shifts in geographical ranges of butterfly species associated with regional warming
- 1999
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Ingår i: NATURE. - : MACMILLAN MAGAZINES LTD. - 0028-0836. ; 399:6736, s. 579-583
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Mean global temperatures have risen this century, and further warming is predicted to continue for the next 50-100 years(1-3) Some migratory species can respond rapidly to yearly climate variation by altering the timing or destination of migration(4), but
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| 5. |
- Zhu, Jun-Wei, et al.
(författare)
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A sex pheromone component novel to the Geometridae identified from Epirrita autumnata
- 1995
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Ingår i: Entomologia Experimentalis et Applicata. - : Wiley. - 0013-8703. ; 75:2, s. 159-164
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Tidskriftsartikel (refereegranskat)abstract
- (Z,Z,Z)‐1, 3, 6, 9‐Heneicosatetraene was identified as a sex pheromone component of Epirrita autumnata (Borkhausen), (Lepidoptera: Geometridae). Gas chromatography coupled with electroantennographic detection revealed one active peak‐from female pheromone gland extracts. The chemical identification of the compound was based on gas chromatography‐mass spectrometry, chemical micro‐reactions and unambiguous synthesis. In a field test, a rubber septum loaded with 3000 μg of this compound showed highest attraction of male E. autumnata moths compared to lower doses and the control. The attraction of males to a 300 μg bait was equivalent to that obtained using live virgin females. 1995 The Netherlands Entomological Society
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