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Bias in Butterfly Distribution Maps: The Effects of Sampling Effort
Data from the Greater Manchester Butterfly Atlas (UK) reveal a highly significant and substantial impact of visits on both species' richness and species' incidence in squares. This effect has been…
The impact of urban development on butterflies within a city region
The effect of urban development on butterfly species' richness and species' incidence is tested for the Greater Manchester conurbation and two sample areas, mapped at finer scales, within the…
Specialism for larval and adult consumer resources among British butterflies: Implications for conservation
It is suggested that habitat fragmentation and regional extinctions are exacerbating resource (nectar and host plant) specialism in British butterflies, and site-specific data obtained according to strict survey protocols are required for determining ecological relationships and to direct site management.
The effects of visual apparency on bias in butterfly recording and monitoring
Bias is found in cross-species comparisons for the apparency of butterfly adults (wing colour, size and behaviour) in three pivotal UK datasets: dates of discovery, Butterfly Monitoring Scheme transect measures of abundance and Butterflies for the New Millennium national recording scheme.
Support for mending the matrix: resource seeking by butterflies in apparent non-resource zones
Behavioural data linked to biotope and substrate types, on three pierid species, have been examined to explore the relationship between flight modes and resource availability and support the view for repairing the matrix and enhancing the general countryside outside habitat patches with resources increasingly being made for organisms.
Targeting squares for survey: predicting species richness and incidence of species for a butterfly atlas
Summary 1.Predictions on species richness and incidence of species are made using data for three scales of mapping from the Greater Manchester butterfly atlas; for the whole of the conurbation (2…
Nestedness in island faunas: novel insights into island biogeography through butterfly community profiles of colonization ability and migration capacity
Aim To relate variation in the migration capacity and colonization ability of island communities to island geography and species island occupancy. Location Islands off mainland Britain and…
Butterfly-hostplant fidelity, vagrancy and measuring mobility from distribution maps
It is found that the vagrancy indices do not simply reflect individual abundance, suggesting an innate component to mobility, and how data collection can be improved for obtaining measurement of butterfly mobility is suggested.
Loss rates of butterfly species with urban development. A test of atlas data and sampling artefacts at a fine scale
Data for the United Kingdom (UK) Manchester Butterfly Atlas produced conflicting species loss rates for increased urban development. In particular, a very low rate of loss was recorded (0.19 species…
The importance of resource databanks for conserving insects: a butterfly biology perspective
Arguments about the applicability of appropriate databases using butterflies as a model taxon are developed, logical to argue that a correctly designed database can be as useful for conservation as molecular databases are for understanding molecular and cellular processes.