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- W849338640 abstract "Anecdotal evidence suggests that habitat management for the Large Blue butterfly,Maculinea arion, benefits other rare species. Selected plant and invertebrate specieswere monitored on a degraded site which was under going restoration management forthe future re-introduction or natural recolonisation of M. arion. This study measured theshift of the floral and invertebrate community in order to understand the speciescomposition and rate of successional changes in the re-establishment of early seral,semi-natural, acid grassland. Several UK Red Data Book species increased on therestoration site including the Pearl-bordered Fritillary, Boloria euphrosyne and theSmall Pearl-bordered Fritillary, Boloria selene. The increase in these two butterflyspecies coincided with an increase in Viola riviniana, a food plant of these two Boloriaspecies, and ants of the genus Myrmica.A detailed study was undertaken to investigate the processes explaining the increases inViola and Boloria species, with emphasis on their possible interactions with variousMyrmica species. A key question was: Does management for M. arion merely create ascarce niche shared by a guild of other species, or is there a direct impact due to theincrease in Myrmica sabuleti or other Myrmica?There was a positive Myrmica affect on Viola density, due to the elaiosomes on theseeds of both Viola species, which were highly attractive to all Myrmica species testedbut not to the other ants (Formica spp.) inhabiting the study sites. Myrmica scabrinodis(HOT) preferred Viola lactea seeds, the species of Viola that coincides most within itsniche in the field. The relative density of Viola riviniana to V. lactea was primarilydetermined by microclimate, with V. lactea replacing V. riviniana in the hottest niches.Boloria euphrosyne oviposition sites are also influenced by microclimate and coincidewith the niche of M. sabuleti, straddling the warmest microclimates occupied by V.riviniana and the coolest ones occupied by V. lactea. B. selene inhabits a cooler niche,ovipositing mainly on V. riviniana near M. ruginodis.Habitat management for M. arion increases the larval food plant and niches of bothBoloria species, but especially that of B. euphrosyne. This is partially due to thecreation of a scarce niche that is shared by a guild of species and partly due to theactivity of Myrmica species ants acting as ecosystem engineers." @default.
- W849338640 created "2016-06-24" @default.
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- W849338640 date "2009-04-01" @default.
- W849338640 modified "2023-09-27" @default.
- W849338640 title "Maculinea arion as an indicator of rare niches in semi-natural acid grasslands in South West England and the role of Myrmica species of ant" @default.
- W849338640 hasPublicationYear "2009" @default.
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