Quantifying changes in abundance of food plants for butterfly larvae and farmland birds

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Post‐war changes in arable farming and biodiversity in Great Britain (2002, unknown): “…Opinion 46 41 37 22 Grime, Hodgson & Hunt (1988) Plants 1960–2000 Literature review† 22 56 – 45 Sotherton & Self (2000) Plants‡ 1978–90 Frequency 45 33 59 9 Smart et al. (2000) Plants§ Long-term Number of studies 45 60 38 2 Wilson et al. (1999) Dragonflies Pre-1975–1988 Range 32 56 16 28 DoE…”
Declines in forage availability for bumblebees at a national scale (2006, background): “butterfly species which have also increased since the 1970s (Smart et al., 2000).”
Habitat‐based statistical models for predicting the spatial distribution of butterflies and day‐flying moths in a fragmented landscape (2000, background): “of future changes in land use or to identify apparently suitable habitat that remains unoccupied (Lawton & Woodroffe 1991; Rushton et al. 2000; Smart et al. 2000).”
Enhancing pollinator biodiversity in intensive grasslands (2009, background): “2003), for nectar by adult butterflies and for host-plants by butterfly larvae (Smart et al. 2000).”
Providing foraging resources for bumblebees in intensively farmed landscapes (2005, background): “40–50 years many plant species associated with lowland farmed landscapes have shown marked contractions in geographic range and severe declines in abundance (Wilson et al., 1999; Smart et al., 2000; Preston et al., 2002).”