Search Results - "Perry, J.N."

A systematic representation of crop rotations by Castellazzi, M.S., Wood, G.A., Burgess, P.J., Morris, J., Conrad, K.F., Perry, J.N.

“…Crop rotations are allocations by growers of crop types to specific fields through time. This paper aims at presenting (i) a systematic and rigorous…”
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Insect behavioural ecology and other factors affecting the control efficacy of agro-ecosystem diversification strategies by Potting, R.P.J., Perry, J.N., Powell, W.

“…In the last decade there is an increased interest in the design and use of diversified pest-suppressive agro-ecosystems. A diversification approach aims to…”
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Red-blue plots for detecting clusters in count data by Perry, J.N., Winder, L., Holland, J.M., Alston, R.D.

“…A new index and four new graphical displays, termed “red–blue” plots, are presented to study and measure clustering in spatially referenced count data. The…”
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Ultrasound of penetrating ocular injury in a combat environment by Gay, D.A.T, Ritchie, J.V, Perry, J.N, Horne, S

“…Penetrating eye injuries are uncommon in a civilian environment, but unfortunately, very common in a military emergency department. Ultrasound of the eye is…”
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New measures and tests of temporal and spatial pattern of crops in agricultural landscapes by Castellazzi, M.S., Perry, J.N., Colbach, N., Monod, H., Adamczyk, K., Viaud, V., Conrad, K.F.

“…Crops are allocated to their fields by growers according to rotational principles and such rotations may be defined and classified. Rotations evolve through…”
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Mitigation of indirect environmental effects of GM crops by Pidgeon, J.D, May, M.J, Perry, J.N, Poppy, G.M

“…Currently, the UK has no procedure for the approval of novel agricultural practices that is based on environmental risk management principles. Here, we make a…”
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Cost-efficacy in measuring farmland biodiversity - lessons from the Farm Scale Evaluations of genetically modified herbicide-tolerant crops by Qi, A, Perry, J.N, Pidgeon, J.D, Haylock, L.A, Brooks, D.R

“…Measuring farmland biodiversity is time-consuming and costly. Operational data from the Farm Scale Evaluation of genetically modified crops project were…”
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The spatial dynamics of crop and ground active predatory arthropods and their aphid prey in winter wheat by Holland, J M, Winder, L, Woolley, C, Alexander, C J, Perry, J N

“…The distribution of aphid predators within arable fields has been previously examined using pitfall traps. With this technique predominantly larger…”
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Statistical models to evaluate invertebrate-plant trophic interactions in arable systems by Bohan, D A, Hawes, C, Haughton, A J, Denholm, I, Champion, G T, Perry, J N, Clark, S J

“…Over the past 40 years there have been marked shifts in arable farmland management that are widely believed to have had a considerable impact on flowering…”
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Effects of genetically modified herbicide-tolerant cropping systems on weed seedbanks in two years of following crops by Firbank, L.G, Rothery, P, May, M.J, Clark, S.J, Scott, R.J, Stuart, R.C, Boffey, C.W.H, Brooks, D.R, Champion, G.T, Haughton, A.J, Hawes, C, Heard, M.S, Dewar, A.M, Perry, J.N, Squire, G.R

“…Weed seedbanks following GMHT maize were significantly higher than following conventional varieties for both the first and second years, while by contrast,…”
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The spatial and temporal distribution of the grain aphid Sitobion avenae in winter wheat by Winder, L. (Plymouth Univ., Newton Abbot, Devon (United Kingdom). Seale-Hayne Faculty), Perry, J.N, Holland, J.M

“…The spatial and temporal distribution of the grain aphid Sitobion avenae F. (Homoptera: Aphididae) was studied within a field of winter wheat during the summer…”
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Effects of successive seasons of genetically modified herbicide-tolerant maize cropping on weeds and invertebrates by Heard, M.S, Clark, S.J, Rothery, P, Perry, J.N, Bohan, D.A, Brooks, D.R, Champion, G.T, Dewar, A.M, Hawes, C, Haughton, A.J, May, M.J, Scott, R.J, Stuart, R.S, Squire, G.R, Firbank, L.G

“…The use of genetically modified herbicide-tolerant (GMHT) crops influences the abundance of weeds and some invertebrate groups because the associated herbicide…”
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Careful plant choice can deliver more biodiverse vertical greening (green façades) by Salisbury, A., Blanusa, T., Bostock, H., Perry, J.N.

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The role of large-scale spatially explicit and small-scale localized processes on the population dynamics of cereal aphids by Winder, L, Griffiths, G J K, Perry, J N, Alexander, C J, Holland, J M, Kennedy, P J, Birt, A

“…A field-scale study of the spatially explicit interaction between the carabid Poecilus cupreus Linnaeus, and two common aphid species (Sitobion avenae…”
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Optimising environmental risk assessments: Accounting for ecosystem services helps to translate broad policy protection goals into specific operational ones for environmental risk assessments by Devos, Yann, Romeis, Jörg, Luttik, Robert, Maggiore, Angelo, Perry, Joe N, Schoonjans, Reinhilde, Streissl, Franz, Tarazona, José V, Brock, Theo CM

“…Graphical Abstract Environmental risk assessments cannot cover all conceivable risks. It is therefore necessary to translate broader policies such as…”
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A model describing the population dynamics of Sitobion avenae and Coccinella septempunctata by Skirvin, D.J., Perry, J.N., Harrington, R.

“…A model that described the summer population dynamics of the cereal aphid Sitobion avenae (Carter et al., 1982) was modified and extended to include the…”
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Simulation scenarios of spatio-temporal arrangement of crops at the landscape scale by Castellazzi, M.S., Matthews, J., Angevin, F., Sausse, C., Wood, G.A., Burgess, P.J., Brown, I., Conrad, K.F., Perry, J.N.

“…The spatial and temporal arrangement of crops is a conspicuous feature of rural landscapes. It has been identified as an important factor in many environmental…”
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Illustrations and guidelines for selecting statistical methods for quantifying spatial pattern in ecological data by Perry, J. N., Liebhold, A. M., Rosenberg, M. S., Dungan, J., Miriti, M., Jakomulska, A., Citron-Pousty, S.

“…This paper aims to provide guidance to ecologists with limited experience in spatial analysis to help in their choice of techniques. It uses examples to…”
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A statistical assessment of differences and equivalences between genetically modified and reference plant varieties by Voet, H. van der, Perry, J.N, Amzal, B, Paoletti, C

“…Safety assessment of genetically modified organisms is currently often performed by comparative evaluation. However, natural variation of plant characteristics…”
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Response to: Comments on the paper "A statistical assessment of differences and equivalences between genetically modified and reference plant varieties by Voet, H., van der, Perry, J.N, Amzal, B, Paoletti, C

“…van der Voet et al. (2011) describe statistical methodology that the European Food Safety Authority expects an applicant to adopt when making a GM crop…”
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