Biotope use and trends of European butterflies

Swaay, Chris van; Warren, M. S.; Loïs, Grégoire

doi:10.1007/s10841-006-8361-1

Cited by 56 publications

(74 citation statements)

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“…We acknowledge here that the GLC-Europe dataset was originally not designed to measure the distribution of optimal habitats for butterflies, such as calcareous unimproved grasslands, or certain types of wetlands (van Swaay 2002; Peterson et al 2004;van Swaay et al 2006). However, this database is useful for measuring the approximate proportion of certain unfavourable land cover types in the 1,608 grid cells which may critically affect the persistence and dispersal of butterflies.…”

Section: Bioclimatic Model-based Measures Of Riskmentioning

confidence: 99%

“…We assessed habitat specialization in two ways. First, we adopted the biotope profile definition of van Swaay et al (2006), and recorded the number of biotopes which the species inhabits in Europe (for details see van Swaay et al 2006). Small values indicate a limited range of habitats, which is likely to increase the susceptibility to climate change.…”

Section: Species Characteristics Increasing Vulnerabilitymentioning

confidence: 99%

“…Small values indicate a limited range of habitats, which is likely to increase the susceptibility to climate change. Second, we used the habitat specialist categorization of van Swaay et al (2006) that includes four classes: grassland specialists, forest specialists, wetland specialists and generalist butterfly species. Based on the differences between the population declines in these species groups (van Swaay et al 2006), we considered that grassland specialists are most vulnerable to climate change impacts, generalist species least vulnerable, and wetland and forest specialists intermediately vulnerable (see also van Swaay 2002).…”

Section: Species Characteristics Increasing Vulnerabilitymentioning

confidence: 99%

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Assessing the vulnerability of European butterflies to climate change using multiple criteria

et al. 2009

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Vulnerability of 100 European butterfly species to climate change was assessed using 13 different criteria and data on species distributions, climate, land cover and topography from 1,608 grid squares 30 0 9 60 0 in size, and species characteristics increasing the susceptibility to climate change. Four bioclimatic model-based criteria were developed for each species by comparing the present-day distribution and climatic suitability of the occupied grid cells with projected distribution and suitability in the future using the HadCM3-A2 climate scenario for 2051-2080. The proportions of disadvantageous land cover types (bare areas, water, snow and ice, artificial surfaces) and cultivated and managed land in the occupied grid squares and their surroundings were measured to indicate the amount of unfavourable land cover and dispersal barriers for butterflies, and topographical heterogeneity to indicate the availability of potential climatic refugia. Vulnerability was also assessed based on species dispersal ability, geographical localization and habitat specialization. Northern European species appeared to be amongst the most vulnerable European butterflies. However, there is much species-to-species variation, and species appear to be threatened due to different combinations of critical characteristics. Inclusion of additional criteria, such as life-history species characteristics, topography and land cover to complement the bioclimatic model-based species vulnerability measures can significantly deepen the assessments of species susceptibility to climate change.

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Section: Bioclimatic Model-based Measures Of Riskmentioning

confidence: 99%

Section: Species Characteristics Increasing Vulnerabilitymentioning

confidence: 99%

Section: Species Characteristics Increasing Vulnerabilitymentioning

confidence: 99%

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Assessing the vulnerability of European butterflies to climate change using multiple criteria

et al. 2009

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“…In this context, it is important to note that traditionally used cultural landscapes typically have a high conservation value, with traditional management practices often being beneficial to biodiversity conservation (Phillips 1998;Bignal and McCracken 2000;Plieninger et al 2006). For some taxa, cultural landscapes even contain the most important biotopes in Europe (Van Swaay et al 2006). Hence, agricultural intensification and the cessation of traditional land use practices are among the most important factors affecting European biodiversity (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, agricultural intensification and the cessation of traditional land use practices are among the most important factors affecting European biodiversity (e.g. Kotze and O'Hara 2003;Ö ckinger et al 2006;Van Swaay et al 2006;Marini et al 2009). …”

Section: Introductionmentioning

confidence: 99%

Effects of fen management on bird communities in north-eastern Germany

2015

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Fens and their associated bird species assemblages have undergone dramatic declines in recent decades. Given that many remaining or restored fens are currently lying fallow, an important question is which management regime, if any, is most effective in preserving fen-typical species. Against this background, we here investigate the effects of five management regimes (intensive grassland, moist meadows, summer-harvested sites, winter-harvested sites, fallows) on bird communities in riverine fens in north-eastern Germany. Summerharvested sites, resembling the historical management of wet meadows, were overall most effective to promote fen-typical bird species, while intensive grassland management was inappropriate. However, some species of conservation concern had their strongholds in other management types such as winter-harvested sites and fallows. Thus, owing to species-specific differences, a mixture of different management regimes is necessary to conserve the full range of fen-typical species. Managing a higher proportion of moist fallows than is currently the case seems to benefit conservation, as long as enough fallows remain. Our study also shows that a successful restoration of fen habitat for associated bird species relies on the realization of appropriate water levels. ZusammenfassungDer Einfluss unterschiedlicher Nutzungsformen auf die Avifauna nordostdeutscher Niedermoore Niedermoore und ihre Vogelgemeinschaften mussten in den letzten Jahrzenten dramatische Rückgänge hinnehmen. Da mittlerweile zahlreiche Niedermoore brach liegen stellt sich die Frage, welche Nutzungsformen am besten geeignet sind das niedermoortypische Artenspektrum zu erhalten bzw. ob es dazu überhaupt einer Nutzung bedarf. Vor diesem Hintergrund wurde der Einfluss fünf unterschiedlicher Nutzungsformen (Intensivgrünland, Feuchtwiesen, Sommermahd, Wintermahd, Brachen) auf die Vogelgemeinschaften eines nordostdeutschen Niedermoores untersucht. Die den historischen Feuchtwiesen vergleichbaren Sommermahdflächen waren am effektivsten im Erhalt niedermoortypischer Arten, während sich das Intensivgrünland dafür als besonders ungeeignet erwies. Jedoch auch die Wintermahdflächen und Brachen waren für bestimmte naturschutzfachlich bedeutsame Arten von großer Bedeutung. Aufgrund artspezifischer Unterschiede in den Habitatpräferenzen erscheint daher ein Mosaik unterschiedlicher Nutzungsformen notwendig zu sein, um das gesamte niedermoortypische Artenspektrum zu erhalten. Dennoch wäre die Nutzung eines höheren Anteils nasser Brachen naturschutzfachlich wünschensw-ert, solange ausreichend Brachflächen erhalten bleiben. Desweiteren zeigt diese Studie die große Bedeutung Communicated by F. Bairlein.

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Increased reliance on insecticide applications inCanada linked to simplified agricultural landscapes

Malaj

Morrissey

2022

Ecological Applications

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Intensification of agriculture and increased insecticide use have been implicated in global losses of farmland biodiversity and ecosystem services. We hypothesized that increased insecticide applications (proportion of area treated with insecticides) in Canada's expansive agricultural landscapes are due, in part, to shifts toward more simplified landscapes. To assess this relationship, we analyzed data from the Canadian Census of Agriculture spanning 20 years including five census periods (1996–2016) and across 225 census units within the four major agricultural regions of Pacific, Prairie, Central, and Atlantic Canada. Generalized mixed effects models were used to evaluate if changes in landscape simplification — defined as the proportion of farmland in crops (cereals, oilseeds, pulses and fruit/vegetables) — alongside other farming and climatic variables, influenced insecticide applications over time. Bayesian spatial–temporal models were further used to estimate the strength of the relationship with landscape simplification over time. We found that landscape simplification increased in 89% and insecticide applications increased in 70% of the Census Division spatial units during the 1996–2016 period. Nationally, significant increases in landscape simplification were observed in the two most agriculturally intensive regions of Prairie (from 55% to 63%) and Central (from 51% to 60%) Canada. For both regions, landscape simplification was a strong and significant predictor of higher insecticide applications, even after accounting for other factors such as climate, farm economics, farm size and land use practices (e.g., area in cash crops and tillage). If current trends continue, we estimated that insecticide applications will increase another 10%–20% by 2036 as a result of landscape simplification alone. To avoid increased reliance on toxic insecticides, agri‐environmental policies need to consider that losing diverse natural habitat can increase insect pest pressure and resistance with negative environmental consequences extending beyond the field.

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Biotope use and trends of European butterflies

Cited by 56 publications

References 0 publications

Assessing the vulnerability of European butterflies to climate change using multiple criteria

Assessing the vulnerability of European butterflies to climate change using multiple criteria

Effects of fen management on bird communities in north-eastern Germany

Increased reliance on insecticide applications inCanada linked to simplified agricultural landscapes

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