NDLI: Effects of ecological restoration on Orthoptera assemblages in a Mediterranean steppe rangeland

Content Provider	Springer Nature Link
Author	Alignan, Jean François Debras, Jean François Dutoit, Thierry
Copyright Year	2014
Abstract	In the last century, human activities have contributed to the fragmentation and the loss of 80 % of the original surface of a Mediterranean steppe rangeland in south-eastern France. In a recent ecological restoration project, an intensively cultivated orchard of 357 ha planted in 1987 among the steppe vegetation was rehabilitated as a herbaceous habitat for steppe birds after its abandonment in 2006. In addition, three experimental restoration treatments (nurse species seeding, hay transfer; soil transfer) were applied at large scale to test the restoration of the original steppe vegetation. Our four-year study aimed to assess the effect of this rehabilitation and the restoration treatments on Orthoptera assemblages. Capturing the Orthoptera with sweep nets, we measured species richness, abundance, Shannon index, Shannon evenness, Renkonen similarity index and two community structure indices. Our results reveal no significant differences in Orthoptera species richness, abundance and diversity between control and reference steppe after 4 years, indicating that the rehabilitation and the three restoration treatments did not significantly accelerate natural recolonization. In the last year of survey, Orthoptera abundances were still significantly lower in the restored treatments than in the original steppe. Thus, future monitoring will need to determine whether abundance and structure similar to that of the reference steppe is achieved in these restored treatments.
Starting Page	1073
Ending Page	1085
Page Count	13
File Format	PDF
ISSN	1366638X
Journal	Journal of Insect Conservation
Volume Number	18
Issue Number	6
e-ISSN	15729753
Language	English
Publisher	Springer International Publishing
Publisher Date	2014-10-31
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ecosystem rehabilitation Grasshoppers Grassland Multi-taxonomic approach Species-diversity Entomology Conservation Biology/Ecology Biodiversity Animal Ecology Life Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Animal Science and Zoology Nature and Landscape Conservation Insect Science

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