Results 1 to 10 of about 79 (63)
Does wing dimorphism affect mobility in Metrioptera roeselii (Orthoptera: Tettigoniidae)? [PDF]
European Journal of Entomology, 2011 Range shifts are among the most conspicuous effects of global warming. Marked changes in distribution are recorded both for highly mobile species of insects, which are capable of flight, and wing-dimorphic species with predominantly short-winged individuals. One of these species is the bush-cricket Metrioptera roeselii, which occasionally produces long-
Thomas Fartmann, Dominik Poniatowski
exaly +4 more sources
Genetic diversity of a successful colonizer: isolated populations of Metrioptera roeselii regain variation at an unusually rapid rate [PDF]
Ecology and Evolution, 2014 AbstractNewly founded isolated populations need to overcome detrimental effects of low genetic diversity. The establishment success of a population may therefore depend on various mechanisms such as assortative mating, purging of deleterious alleles, creation of new mutations and/or repeated inflow of new genotypes to reduce the effects of inbreeding ...
Asa Berggren, Peter Kanuch
exaly +6 more sources
Gene flow relates to evolutionary divergence among populations at the range margin. [PDF]
PeerJ, 2020 Background Morphological differentiation between populations resulting from local adaptations to environmental conditions is likely to be more pronounced in populations with increasing genetic isolation. In a previous study a positive clinal variation in
Kaňuch P +5 more
europepmc +3 more sources
Modelling the distribution of the invasive Roesel’s bush-cricket (Metrioptera roeselii) in a fragmented landscape [PDF]
NeoBiota, 2011 The development of conservation strategies to mitigate the impact of invasive species requires knowledge of the species ecology and distribution. This is, however, often lacking as collecting biological data may be both time-consuming and resource intensive.
Preuss, Sonja +2 more
openaire +5 more sources
Two Species with an Unusual Combination of Traits Dominate Responses of British Grasshoppers and Crickets to Environmental Change. [PDF]
PLoS One, 2015 There are large variations in the responses of species to the environmental changes of recent decades, heightening interest in whether their traits may explain inter-specific differences in range expansions and contractions.
Beckmann BC +5 more
europepmc +2 more sources
Estonian Journal of Ecology, 2014 We studied the wing dimorphism in Roeselâs bush cricket populations. A total of 410 individuals (77 macropterous and 333 brachypterous) were sampled in seven sites. We found a high frequency (£ 53%) of macropterous individuals in some meadows surrounded by forests.
Antal Nagy
exaly +6 more sources
European Journal of Entomology, 2013 Linear landscape elements are generally considered beneficial for promoting the movements of species between isolated habitats. However, relatively little consideration has been given to the effect of interconnections (nodes) between these elements: e.g.
Asa Berggren, Matthew Low
exaly +3 more sources
European Journal of Entomology, 2009 Macroptery is common in many species of Orthoptera, but the causes are still discussed. Besides the assumption that macroptery is genetically determined, there is evidence that wing dimorphism is induced by environmental factors, particularly population ...
Thomas Fartmann, Dominik Poniatowski
exaly +3 more sources
On Variation of Polyandry in a Bush-Cricket,Metrioptera roeselii, in Northern Europe [PDF]
Journal of Insect Science, 2013 Matthew Low +2 more
exaly +1 more source
On Variation of Polyandry in a Bush-Cricket,Metrioptera roeselii, in Northern Europe [PDF]
Journal of Insect Science, 2013 Patterns of polyandry in nuptial-gift-giving insects are often explained in terms of sexually antagonistic coevolution. However, the potential influence of environmental constraints and life-history traits on polyandry in these species is still largely unexplored. As an initial step in examining the role of these factors, this study measured the number
Kaňuch, Peter +3 more
openaire +1 more source