The influence of barriers and orientation on the dispersal ability of wood cricket (Nemobius sylvestris) (Orthoptera: Gryllidae)

N.C. Brouwers; A.C. Newton

doi:10.1007/s10841-009-9256-8

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The influence of barriers and orientation on the dispersal ability of wood cricket (Nemobius sylvestris) (Orthoptera: Gryllidae)

Journal article

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Peer reviewed

The influence of barriers and orientation on the dispersal ability of wood cricket (Nemobius sylvestris) (Orthoptera: Gryllidae)

N.C. Brouwers and A.C. Newton

Journal of Insect Conservation, Vol.14(3), pp.313-317

2010

DOI: https://doi.org/10.1007/s10841-009-9256-8

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Abstract

Dispersal is an important process determining species spread and survival in fragmented landscapes. However, information on the dispersal ability of woodland-associated invertebrate species is severely lacking. A study was conducted examining the ability of wood cricket (Nemobius sylvestris) (Orthoptera: Gryllidae) to cross small watercourses and to orientate themselves towards habitat edges. A series of experiments were conducted where juvenile (i.e. nymph) and adult wood crickets were released and observed over time. The results of this investigation indicated that (i) nymphs and adults were equally able to swim across a small (≤35 cm) watercourse; and (ii) adult wood cricket were able to positively orientate themselves towards a mature woodland edge at a visual angle of ≥19°, when less than 50 m away. Together, this investigation suggests that these traits likely facilitate the ability of this species to disperse within fragmented wooded landscapes, however, further study is needed to strengthen the significance of these findings for this and similar species.

Details

Title: The influence of barriers and orientation on the dispersal ability of wood cricket (Nemobius sylvestris) (Orthoptera: Gryllidae)
Authors/Creators: N.C. Brouwers (Author/Creator)
A.C. Newton (Author/Creator)
Publication Details: Journal of Insect Conservation, Vol.14(3), pp.313-317
Publisher: Springer
Identifiers: 991005542849307891
Copyright: Springer Science+Business Media B.V.
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Citation topics: 3 Agriculture, Environment & Ecology; 3.40 Forestry; 3.40.195 Biodiversity Conservation
Web Of Science research areas: Biodiversity Conservation; Entomology
ESI research areas: Plant & Animal Science