Effects of Landscape Structure on Movement Patterns of the Flightless Bush Cricket Pholidoptera griseoaptera

Because the viability of a population may depend on whether individuals can disperse, it is important for conservation planning to understand how landscape structure affects movement behavior. Some species occur in a wide range of landscapes differing greatly in structure, and the question arises of whether these species are particularly versatile in their dispersal or whether they are composed of genetically distinct populations adapted to contrasting landscapes. We performed a capture-mark-resight experiment to study movement patterns of the flightless bush cricket Pholidoptera griseoaptera (De Geer 1773) in two contrasting agricultural landscapes in France and Switzerland. The mean daily movement of P. griseoaptera was significantly higher in the landscape with patchily distributed habitat (Switzerland) than in the landscape with greater habitat connectivity (France). Net displacement rate did not differ between the two landscapes, which we attributed to the presence of more linear elements in the connected landscape, resulting in a more directed pattern of movement by P. griseoaptera. Significant differences in the movement patterns between landscapes with contrasting structure suggest important effects of landscape structure on movement and dispersal success. The possibility of varying dispersal ability within the same species needs to be studied in more detail because this may provide important information for sustainable landscape planning aimed at maintaining viable metapopulations, especially in formerly well-connected landscape

Recent advances in understanding plant invasions

Dietz H, Steinlein T. Recent advances in understanding plant invasions. Progress in botany. 2004;65:539-573

Don't do anything!? Implications of intensive basic research for successful management of the invasive alien plant species Bunias orientalis L. (Brassicaceae)

Dietz H, Steinlein T. Don't do anything!? Implications of intensive basic research for successful management of the invasive alien plant species Bunias orientalis L. (Brassicaceae). Neobiota. 2002;1:150-160

Establishment of the invasive perennial herb Bunias orientalis L.: An experimental approach

Dietz H, Ullmann I, Steinlein T. Establishment of the invasive perennial herb Bunias orientalis L.: An experimental approach. Acta Oecologia. 1999;20(6):621-632

Influence of light and nutrient conditions on seedling growth of native and invasive trees in the Seychelles

ISSN:1387-3547ISSN:1573-146

Appendix B. A table showing mixed-effects model summaries for the effect of altitude and region on stem height and capitulum seed mass, for each of eight Asteraceae forbs separately.

A table showing mixed-effects model summaries for the effect of altitude and region on stem height and capitulum seed mass, for each of eight Asteraceae forbs separately