Results 21 to 30 of about 321 (113)

Experimental evidence for density-determined wing dimorphism in two bush-crickets (Ensifera: Tettigoniidae)

open access: yesEuropean 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 ...
Dominik PONIATOWSKI, Thomas FARTMANN
doaj   +1 more source

The classification of insect communities: Lessons from orthopteran assemblages of semi-dry calcareous grasslands in central Germany

open access: yesEuropean Journal of Entomology, 2008
Whereas the classification of plant communities has a long tradition that of animal assemblages remains poorly developed. Here we propose a classification scheme for orthopteran communities based on regional "character species", "differential species ...
Dominik PONIATOWSKI, Thomas FARTMANN
doaj   +1 more source

Relative impacts of land‐use and climate change on grasshopper range shifts have changed over time

open access: yesGlobal Ecology and Biogeography, Volume 29, Issue 12, Page 2190-2202, December 2020., 2020
Abstract Aim Stopping the decline of biodiversity is one of today’s greatest challenges. To help address this, we require studies that disentangle the effects of the most important drivers behind species range losses and shifts. In this large‐scale study, we aim to evaluate the relative impacts of changes in land use and climate on distributional ...
Dominik Poniatowski   +7 more
wiley   +1 more source

Influence of linear versus network corridors on the movement and dispersal of the bush-cricket Metrioptera roeseli (Orthoptera: Tettigoniidae) in an experimental landscape

open access: yesEuropean 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.
Anders ERIKSSON   +2 more
doaj   +1 more source

Ecological and evolutionary processes at expanding range margins [PDF]

open access: yes, 2001
Many animals are regarded as relatively sedentary and specialized in marginal parts of their geographical distributions. They are expected to be slow at colonizing new habitats.
Bodsworth, E.J.   +6 more
core   +3 more sources

Secondary habitats are important in biodiversity conservation: a case study on orthopterans along ditch banks [PDF]

open access: yes, 2018
Los hábitats secundarios son importantes en la conservación de la biodiversidad: un estudio práctico sobre los ortópteros en orillas de acequias Se ha demostrado que la biota autóctona puede sobrevivir en hábitats secundarios como cunetas, diques y ...
Bozsó, M., Gallé, R., Torma, A.
core   +3 more sources

Metrioptera roeselii Hagenbach 1822

open access: yes, 2007
Metrioptera roeselii (Hagenbach, 1822) Roesels Beissschrecke ...
Monnerat, C.   +3 more
openaire   +1 more source

A clue to invasion success: genetic diversity quickly rebounds after introduction bottlenecks [PDF]

open access: yes, 2021
One of the fundamental questions in invasion biology is to understand the genetic mechanisms behind success or failure during the establishment of a species. However, major limitations to understanding are usually a lack of spatiotemporal population data
Berggren, Åsa   +2 more
core  

Correlated sexual selection on male genitalia, copulatory performance and nuptial gifts in a bushcricket (Orthoptera: Tettigoniidae) indicated by allometric scaling [PDF]

open access: yes, 2021
We adopt an allometric framework of scaling relationships for comparison between mating-related traits in the middle European bushcricket Roeseliana roeselii (Hagenbach, 1822).
Dickhaus, Thorsten   +3 more
core   +1 more source

Distribution Patterns of Grasshoppers and Their Kin in the Boreal Zone

open access: yesPsyche: A Journal of Entomology, Volume 2011, Issue 1, 2011., 2011
The distribution patterns of Orthoptera are described for the boreal zone. The boreal fauna of Eurasia includes more than 81 species. Many of them are widely distributed. The monotypic genus Paracyphoderris Storozhenko and at least 13 species are endemics or subendemics. About 50 species are known from boreal North America.
Michael G. Sergeev   +1 more
wiley   +1 more source

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