Coupling inter‐patch movement models and landscape graph to assess functional connectivity

Bergerot, Benjamin; Tournant, Pierline; Moussus, Jean‐Pierre; Stevens, Virginie M.; Julliard, Romain; Baguette, Michel; Foltête, Jean-Christophe

doi:10.1007/s10144-012-0349-y

Cited by 24 publications

(14 citation statements)

References 39 publications

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“…Bergerot et al (2012) compared movement patterns for the Speckled Wood (Pararge aegeria) in different landscapes and found that individuals were more sedentary in a highly fragmented urban landscape (Paris) than in other landscape types. The work of Bergerot et al (2013) on the Cabbage White (Pieris brassicae) and that of Leidner and Haddad (2010) on Atrytonopsis spec 1 demonstrate the high mobility of certain butterfly species in highly urbanised landscapes, but also highlight certain natural and human barriers to butterfly movement.…”

Section: Introductionmentioning

confidence: 97%

Abundances and movement of the Scarce Copper butterfly (Lycaena virgaureae) on future building sites at a settlement fringe in southern Sweden

Haaland

2014

J Insect Conserv

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The Scarce Copper (Lycaena virgaureae) is a species that has suffered serious decline in several European countries. In Scandinavia it is still comparatively abundant, but with ongoing losses of flower-rich grasslands near forests further decline is expected. A mark-releaserecapture study was carried out in July 2013 at 14 sites on the outskirts of a village located near Malmö, Sweden. The study area comprised in total an 11.4 ha network of abandoned agricultural sites, road verges and forest edges. A private garden was also included. Butterflies were marked individually and the capture position was recorded by GPS. Sex, behaviour and flower visits were also recorded. During the study 852 butterflies were marked and 170 of these were recaptured at least once (recapture rate 20 %), resulting in 1,078 captures (including multiple recaptures). Movement between patches accounted for 41 % of all recaptures and mean distance between recaptures was 112 ± 146 m (n = 226). The number of captures was strongly positively correlated with patch size (q = 0.95, p \ 0.05), while the emigrant and immigrant fractions were significantly negatively correlated with patch size. Overall, the Scarce Copper was surprisingly abundant in the area, but planned construction of residential areas will result in the loss of most habitat patches.

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Section: Introductionmentioning

confidence: 97%

Abundances and movement of the Scarce Copper butterfly (Lycaena virgaureae) on future building sites at a settlement fringe in southern Sweden

Haaland

2014

J Insect Conserv

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“…In the informed mode, decisions are made by an individual of a highly cognitive species (such as a bear, cougar or lion), which has the capability to locally select a route that minimizes the cost for movement (Chetkiewicz and Boyce 2009;Elliot et al 2014). The alternative naïve mode is frequently applied in the context of metapopulation models, to more-or-less randomly moving individuals that rely on chance to make it through dispersal journeys (Bergerot et al 2013). A combination of both strategies will probably apply to many organisms, in particular to terrestrial organisms with low dispersal capabilities such as amphibians (Brown et al 2014;Campbell Grant et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Amphibian decline, pond loss and reduced population connectivity under agricultural intensification over a 38 year period

et al. 2017

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Habitat loss, together with less obvious land-use changes such as intensified farming practice, can have significant adverse impacts on biodiversity. An important factor in determining the ability of species to cope with such changes is their potential to sustain a populations network by dispersal across the landscape. Habitat quality and structure are particularly important for surface-dwelling species with low dispersal abilities, such as amphibians. To assess this ecological function, ponds in a coastal and typically rural area of northern France were surveyed for amphibians in 1974, 1992 and 2011. These repeated surveys yielded different outcomes for different species groups. Three rare species persisted in more or less specialized habitat types. Two moderately common species declined, but kept strongholds in coastal dunes and associated marshes. Five common species with broad ecological niches remained equally widespread. The Northern crested newt declined markedly and the Midwife toad declined dramatically, as did their breeding habitats in vegetated ponds and cattle drinking troughs. One species, the Moor frog, may have gone locally extinct. A model of relative resistance to amphibian dispersal was created for different landscape types, on a scale from 0 (low resistance) to 1 (high resistance). This generated values of 0.23 for pasture, 0.72 for arable and 0.98 for urban and transport. As pasture declined in the study area, while arable and urban/transport infrastructure increased, amphibian dispersal became more difficult. However, dispersal paths proved difficult to evaluate in a patchy landscape like the one surveyed, due to a paucity of spatial 123Biodivers Conserv (2017) 26:1411-1430 DOI 10.1007/s10531-017-1307 signal. Pond loss is a more tractable reason for the observed amphibian species decline than is the quality of intervening terrestrial habitat matrix. In 2011, 22 newly created ponds had species richness in line with pre-existing ponds and this will have counteracted a dwindling metapopulation structure, indicating that habitat creation/restoration can play a valuable role in conservation. The colonization of new ponds may also prove more informative for gauging the potential for amphibian dispersal in the landscape than the preceding decline.

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“…The persistence of many species in mosaic landscapes depends on the capacity of species to move and disperse within a network of suitable patches (Nathan et al 2008;Bergerot et al 2012). In this context, butterflies are useful model organisms (Watt and Boggs 2003) because of their relatively short life cycles, their quick responses to environmental change (Erhardt 1985;Warren and Bourn 2011), and because they are relatively well-studied (Stevens et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Changes in butterfly movements along a gradient of land use in farmlands of Transylvania (Romania)

et al. 2014

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Context Agricultural transformation and increased land use intensity often lead to simplified landscapes and biodiversity loss. For animals, one possible mechanism underpinning biodiversity loss in agricultural landscapes is the disruption of movements. The disruption of movements may explain, for example, why butterfly communities in agricultural landscapes are often dominated by generalist species with high mobility. Objectives Here, we investigated how the movement patterns of butterflies characterised by different levels of mobility changed along a gradient of agricultural land use intensity.Methods To this end, we studied 15 landscapes in low-intensity farmland in Central Romania, measuring 10 ha each and covering a gradient of landscape heterogeneity and woody vegetation cover. In these landscapes, we tracked movements of 563 individuals of nine butterfly species. Results Our findings showed that overall movement activities differed significantly between species, corresponding well with expert-derived estimates of species-specific mobility. Interestingly, species of low and high mobility responded in opposite ways to increasing levels of landscape heterogeneity. In relatively simple landscapes, the movement patterns of low and high mobility species were similar. By contrast, in complex landscapes, the flight paths of low-mobility species became shorter and more erratic, whereas the flight paths of high-mobility species became longer and straighter. An analysis of the land Electronic supplementary material The online version of this article (covers traversed showed that most species avoided arable land but favoured the more heterogeneous parts of a given landscape. Conclusions In combination, our results suggest that non-arable patches in agricultural landscapes are important for butterfly movements, especially for low-mobility species.

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Coupling inter‐patch movement models and landscape graph to assess functional connectivity

Cited by 24 publications

References 39 publications

Abundances and movement of the Scarce Copper butterfly (Lycaena virgaureae) on future building sites at a settlement fringe in southern Sweden

Abundances and movement of the Scarce Copper butterfly (Lycaena virgaureae) on future building sites at a settlement fringe in southern Sweden

Amphibian decline, pond loss and reduced population connectivity under agricultural intensification over a 38 year period

Changes in butterfly movements along a gradient of land use in farmlands of Transylvania (Romania)

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