Search Results - "R. Day, Keith"

Temperature‐dependent development of the great European spruce bark beetle Dendroctonus micans (Kug.) (Coleoptera: Curculionidae: Scolytinae) and its predator Rhizophagus grandis Gyll. (Coleoptera: Monotomidae: Rhizophaginae) by Gent, Claire A., Wainhouse, David, R. Day, Keith, Peace, Andrew J., J. G. Inward, Daegan

“…Dendroctonus micans is an invasive species that has spread throughout Britain, which prompts the question: how is the voltinism of this pest and its biocontrol…”
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The effects of high temperatures on individuals and populations of the green spruce aphid Elatobium abietinum (Walker) by Straw, Nigel A., Bladon, Freia M., Day, Keith R., Fielding, Nick J.

“…Green spruce aphid Elatobium abietinum is an important defoliating pest of Sitka spruce Picea sitchensis that may become more damaging in the future as a…”
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Interannual population dynamics of the green spruce aphid Elatobium abietinum (Walker) in France by Lemperiere, Guy, Day, Keith R., Petit‐Berghem, Yves, Robinet, Nicolas, Portier, Pérrine, Leather, Simon R., Marage, Damien

“…The hypothesis that similar processes govern interannual dynamics of green spruce aphid in the UK and France, is generally supported by the application of a…”
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Flight ability and reproductive development in newly-emerged pine weevil Hylobius abietis and the potential effects of climate change by Tan, Janine Y, Wainhouse, David, Day, Keith R, Morgan, Geoffrey

“…1 Adult pine weevils Hylobius abietis emerge from conifer root-stumps, on which larvae develop, over an extended period during summer and autumn. Newly-emerged…”
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Interaction between flight, reproductive development and oviposition in the pine weevil Hylobius abietis by Tan, Janine Y., Wainhouse, David, Morgan, Geoffrey, Day, Keith R.

“…1 The development of reproductive and flight capacity of pine weevils Hylobius abietis during the spring and their dispersal to, and subsequent development at,…”
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Hunting disturbance on a large shallow lake: the effectiveness of waterfowl refuges by Evans, Darren M., Day, Keith R.

“…Disturbance is most likely to have an impact during those periods of the annual cycle when food is scarce and birds have difficulty in meeting their energy…”
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Population responses of a conifer-dwelling aphid to seasonal changes in its host by Day, Keith R., Armour, Hazel, Docherty, M.

“…1. Current evidence suggests that seasonal changes in spruce needle sap nutrients have a decisive influence on green spruce aphid ( Elatobium abietinum )…”
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Does shooting disturbance affect diving ducks wintering on large shallow lakes? A case study on Lough Neagh, Northern Ireland by Evans, Darren M, Day, Keith R

“…Waterfowl hunting is widespread and common throughout Europe, affecting waterfowl populations directly through the kill and indirectly through disturbance…”
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Temperature-dependent development of the great European spruce bark beetle Dendroctonus micans (Kug.) (Coleoptera: Curculionidae: Scolytinae) and its predator Rhizophagus grandis Gyll. (Coleoptera: Monotomidae: Rhizophaginae): D . micans and R . grandis development by Gent, Claire A., Wainhouse, David, R. Day, Keith, Peace, Andrew J., J. G. Inward, Daegan

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Effects of Grazing on Grasslands by Wintering Whooper Swans by Colhoun, Kendrew, Day, Keith R.

“…The effects of grazing by Whooper Swans (Cygnus cygnus) on agricultural grasslands in winter were investigated in northwest Ireland. Exclosure cages were used…”
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Migration patterns and sex ratios of diving ducks wintering in Northern Ireland with specific reference to Lough Neagh by Evans, Darren M., Day, Keith R.

“…Several duck species exhibit differential migration, whereby females settle further south than males on the winter grounds after the autumn migration. This is…”
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