Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 505978
Title Contrasting responses of insect communities to grazing intensity in lowland heathlands
Author(s) Wallis de Vries, Michiel; Noordijk, Jinze; Colijn, Ed O.; Smit, John T.; Veling, Kars
Source Agriculture, Ecosystems and Environment 234 (2016). - ISSN 0167-8809 - p. 72 - 80.
DOI https://doi.org/10.1016/j.agee.2016.04.012
Department(s) Laboratory of Entomology
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Biodiversity - Butterflies - Grasshoppers - Grazing - Heathlands - Insects
Abstract

Grazing at low stocking rates is often recommended for the preservation of the characteristic biodiversity of open landscapes. However, the fine-tuning of grazing management still lacks a good evidence base. This is particularly true for insect communities, as available evidence indicates that these are more vulnerable to grazing than plant communities. The outcome, however, may be expected to differ between insect species. Here, we analysed the impact of different grazing intensities on insect communities from lowland heathlands in the Netherlands. Firstly, we use detailed data on butterfly distribution and abundances to analyse population responses of 10 butterfly species to heathland grazing management. Secondly, we investigated species responses to grazing intensity on 16 field locations across a range of insect groups (butterflies, day-active moths, grasshoppers, and ants). We hypothesized that species from early successional stages would benefit from grazing whereas late-successional species would suffer from grazing. Moreover, we expected summer grazing to have less beneficial effects than year-round grazing. Both hypotheses were largely supported by our results. Species responses to grazing contrasted between early and late successional species. Variation in species responses were strongly linked to grazing intensity and soil moisture, reflecting species-specific niches in relation to vegetation structure and microclimate. We conclude that low-intensity year-round cattle grazing or herded sheep grazing may promote insect biodiversity in large, heterogeneous heathlands, whereas targeted or rotational grazing may be advisable in smaller areas.

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