Carabid assemblages in agricultural landscapes: impacts of habitat features, landscape context at different spatial scales and farming intensity

Aviron, Stéphanie; Burel, Françoise; Baudry, Jacques; Schermann, Nicolas

doi:10.1016/j.agee.2005.02.004

Cited by 160 publications

(127 citation statements)

References 40 publications

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“…The results of the studies indicated that species abundance and species presence were positively related to the vegetation cover and structural complexity of the hedgerows (Petit and Burel 1998a;Aviron et al 2005). Movement of individuals was inhibited by gaps in the hedgerow and improved with increasing vegetation cover (Plat et al 1995); the nonhabitat matrix was avoided and mortality was high for those that travelled into the farmland, even if they subsequently returned to the hedgerow (Charrier et al 1997).…”

Section: Invertebratesmentioning

confidence: 92%

Are hedgerows effective corridors between fragments of woodland habitat? An evidence-based approach

2007

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Anthropogenic modification of the countryside has resulted in much of the landscape consisting of fragments of once continuous habitat. Increasing habitat connectivity at the landscape-scale has a vital role to play in the conservation of species restricted to such remnant patches, especially as species may attempt to track zones of habitat that satisfy their niche requirements as the climate changes. Conservation policies and management strategies frequently advocate corridor creation as one approach to restore connectivity and to facilitate species movements through the landscape. Here we examine the utility of hedgerows as corridors between woodland habitat patches using rigorous systematic review methodology. Systematic searching yielded 26 studies which satisfied the review inclusion criteria. The empirical evidence currently available is insufficient to evaluate the effectiveness of hedgerow corridors as a conservation tool to promote the population viability of woodland fauna. However, the studies did provide anecdotal evidence of positive local population effects and indicated that some species use hedgerows as movement conduits. More replicated and controlled field investigations or longterm monitoring are required in order to allow practitioners and policy makers to make better informed decisions about hedgerow corridor creation and preservation. The benefits of such corridors in regard to increasing habitat connectivity remain equivocal, and the role of corridors in mitigating the effects of climate change at the landscape-scale is even less well understood.

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Section: Invertebratesmentioning

confidence: 92%

Are hedgerows effective corridors between fragments of woodland habitat? An evidence-based approach

2007

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“…We hypothesized that TerraSAR-X imagery would provide more valuable information than that of aerial photographs or SPOT-5 images as it explores both the inner structure of the hedgerow and the network structure. As a biological model, we chose forest carabid beetles as their ecology is well known (Thiele, 1977;Burel, 1989;Aviron et al 2005), along with their relations with the hedgerow network landscape structure. Ground beetles (Coleoptera, Carabidae) are an appropriate group to select as indicators of environmental quality or change (Kromp, 1999;Pearson, 1994).…”

Section: Introductionmentioning

confidence: 99%

Assessing ecological habitat structure from local to landscape scales using synthetic aperture radar

Betbeder

Hubert‐Moy

Burel

et al. 2015

Ecological Indicators

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Ecological studies need accurate environmental data such as vegetation characterization, landscape structure and organization, to predict and explain the spatial distribution of biodiversity. Few ecological studies use remote sensing data to assess the biophysical or structural properties of vegetation to understand species distribution. To date, Synthetic Aperture Radar (SAR) data have seldom been used for ecological applications. However, these sensors provide data allowing access to the inner structure of vegetation which is a key information in ecology. The objective of this article is to compare the predictive power of ecological habitat structure variables derived from a TerraSAR-X image, an aerial photograph and a SPOT-5 image for species distribution. The test was run with a hedgerow network in Brittany and assessed the spatial distribution of the forest ground carabid beetles which inhabit these hedgerows. The results confirmed that radar and optical images can be indifferently used to extract hedgerow network and derived landscape metrics (hedgerow density, network grain) useful to explain the spatial distribution of forest carabid beetles. In comparison with passive optical remotely sensed data, VHSR SAR images provide new data to characterize vegetation structure and more particularly hedgerow canopy cover, a variable known to explain the spatial distribution of carabid beetles in an agricultural landscape, but not yet quantified at a fine scale. The hedgerow canopy cover derived from the SAR image is 2 a strong predictor of the abundance of forest carabid beetles at two scales i.e. a local scale and a landscape scale. Keywordsbiodiversity, remote sensing, forest carabid beetles, hedgerow canopy cover, landscape scale, quantitative maps

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“…Management of ecological composition and diversity in agroecosystems requires, inter alia, consideration of all anthropogenic factors which may play a direct or indirect role (Aviron et al 2005;Batáry et al 2012;Clough et al 2005;Elliott et al 1998;Norris and Kogan 2005;Weibull et al 2003;Woodcock et al 2010). Thompson et al (2012) emphasize the importance of ecosystem and landscape factors on the diversity of functional groups.…”

Section: The Role Of Biodiversity In Agroecosystemsmentioning

confidence: 99%

Agroecological management of cucurbit-infesting fruit fly: a review

Deguine

Atiama-Nurbel²,

Aubertot³

et al. 2015

Agron. Sustain. Dev.

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Conventional crop protection with pesticides has limitations such as resistance of pests to pesticides and faunal imbalance. Agroecological crop protection is an attractive alternative based on the principles of agroecology. We present here this strategy using the case of Cucurbitaceae flies, which are the most important agricultural pests in Réunion. Research has been carried out on the bioecology of these insects and on the effectiveness of agroecological techniques. The main points are the following: the number of species of vegetable flies increased in the southern summer. Adult flies spend more than 90 % of their time on nonhost plants, with specific circadian rhythms. Several original agroecological techniques were designed, such as sanitation using augmentoria; trap plants, e.g., maize; adulticide bait; and the creation of habitats for predatory arthropods. Local growers are very satisfied with the results. They have reduced insecticide use with substantial cost savings and they have observed a decrease in losses and a lower phytosanitary workload. The education and training of students, professionals, and the general public has been a major aspect of this project. Increased knowledge of flies and agroecological management strategies of their populations can now be combined with modeling tools to facilitate the extension of the program to other areas or for educational purposes. Practices are currently being extended to other areas of the island and other countries of the Indian Ocean. This project is both a significant milestone for organic farming in Réunion and a precedent for other initiatives aimed at reducing or eliminating pesticides.

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Carabid assemblages in agricultural landscapes: impacts of habitat features, landscape context at different spatial scales and farming intensity

Cited by 160 publications

References 40 publications

Are hedgerows effective corridors between fragments of woodland habitat? An evidence-based approach

Are hedgerows effective corridors between fragments of woodland habitat? An evidence-based approach

Assessing ecological habitat structure from local to landscape scales using synthetic aperture radar

Agroecological management of cucurbit-infesting fruit fly: a review

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