Search Results - "STEPHENS, P A"

What Is the Allee Effect? by Stephens, P. A., Sutherland, W. J., Freckleton, R. P.

“…W. C. Allee brought attention to the possibility of a positive relationship between aspects of fitness and population size over fifty years ago. This…”
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Consequences of the Allee effect for behaviour, ecology and conservation by Stephens, Philip A., Sutherland, William J.

“…Warder C. Allee brought attention to the possibility of a positive relationship between aspects of fitness and population size 50 years ago. Until recently,…”
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Genetic panmixia and demographic dependence across the North Atlantic in the deep-sea fish, blue hake ( ) by White, T A, Fotherby, H A, Stephens, P A, Hoelzel, A R

“…The efficient investment of resources and effort into conservation strategies depends on the accurate identification of management units. At the same time,…”
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Predictive models of weed population dynamics by FRECKLETON, R P, STEPHENS, P A

“…Summary Many of the challenges faced by weed ecologists can be met only by the capability to predict the responses of weed populations to changes in their…”
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Context-Specific Marker-Assisted Selection for Improved Grain Yield in Elite Soybean Populations by Sebastian, S.A, Streit, L.G, Stephens, P.A, Thompson, J.A, Hedges, B.R, Fabrizius, M.A, Soper, J.F, Schmidt, D.H, Kallem, R.L, Hinds, M.A, Feng, L, Hoeck, J.A

“…Despite the importance of grain yield potential to plant breeders and society in general, it has been difficult to identify grain yield quantitative trait loci…”
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Dispersal, Eviction, and Conflict in Meerkats (Suricata suricatta): An Evolutionarily Stable Strategy Model by Stephens, P. A., Russell, A. F., Young, A. J., Sutherland, W. J., Clutton‐Brock, T. H.

“…Decisions regarding immigration and emigration are crucial to understanding group dynamics in social animals, but dispersal is rarely treated in models of…”
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Predicting the response of farmland bird populations to changing food supplies by Stephens, Philip A., Freckleton, Robert P., Watkinson, Andrew R., Sutherland, William J.

“…1. Agricultural developments over recent decades have had significant negative effects on wildlife. Modern European agriculture faces many further developments…”
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Spousal undermining of older diabetic patients’ disease management by Henry, Shayna L, Rook, Karen S, Stephens, Mary AP, Franks, Melissa M

“…Marriage can enhance health for individuals with a chronic disease, yet spouses may also undermine disease management. The current study investigated spousal…”
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Leopard density and determinants of space use in a farming landscape in South Africa by J E T, McKaughan, P A, Stephens, C, Lucas, N, Guichard-Kruger, F, Guichard-Kruger, R A, Hill

“…Protected areas are traditionally the foundation of conservation strategy, but land not formally protected is of particular importance for the conservation of…”
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Localization of a quantitative trait locus providing brown stem rot resistance in the soybean cultivar bell by Patzoldt, M.E, Grau, C.R, Stephens, P.A, Kurtzweil, N.C, Carlson, S.R, Diers, B.W

“…Many soybean [Glycine max (L.) Merr.] genotypes that carry resistance to soybean cyst nematode (Heterodera glycines Ichinohe) (SCN) from plant introduction…”
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Behavioral and psychological symptoms of dementia and caregivers' stress appraisals: Intra-individual stability and change over short-term observations by Fauth, E. B., Zarit, S. H., Femia, E. E., Hofer, S. M., Stephens, M. A. P.

“…Dementia is commonly associated with memory loss, but Behavioral and Psychological Symptoms of Dementia (BPSD) such as disruptive behaviors, agitation, and…”
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Amelioration of biodiversity impacts of genetically modified crops: predicting transient versus long-term effects by Freckleton, R.P, Stephens, P.A, Sutherland, W.J, Watkinson, A.R

“…fat hen) we show that it is unlikely that the positive effects observed could be maintained by inputs of seed during other parts of the rotation. However, we…”
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Employed family caregivers of cognitively impaired elderly: An examination of role strain and depressive symptoms by Edwards, A. B., Zarit, S. H., Stephens, M. A. P., Townsend, A.

“…This paper compares employed and non-employed caregivers of cognitively impaired elderly family members. Using two competing positions derived from role…”
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Impact of Adult Day Services on Behavioral and Psychological Symptoms of Dementia by Femia, Elia E., Zarit, Steven H., Stephens, Mary Ann Parris, Greene, Rick

“…Purpose: This study explored whether adult day service (ADS) use was associated with reductions in behavioral and psychological symptoms of dementia (BPSD) in…”
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The Effect of Rbs2 on Yield of Soybean by Bachman, M. S., Nickell, C. D., Stephens, P. A., Nickell, A. D., Gray, L. E.

“…Brown stem rot (BSR), caused by Phialophora gregata (Ailington & Chamberlain) W. Gams, is a vascular‐foliar soybean [Glycine max (L.) Merr.] disease of the…”
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The Scaling of Diving Time Budgets: Insights from an Optimality Approach by Stephens, Philip A., Carbone, Chris, Boyd, Ian L., McNamara, John M., Harding, Karin C., Houston, Alasdair I.

“…Simple scaling arguments suggest that, among air‐breathing divers, dive duration should scale approximately with mass to the one‐third power. Recent…”
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Stress Reduction for Family Caregivers: Effects of Adult Day Care Use by Zarit, Steven H., Stephens, Mary Ann Parris, Townsend, Aloen, Greene, Rickey

“…Objectives. This study reports the findings of an evaluation of the psychological benefits of use of adult day care by family caregivers assisting a relative…”
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Model Complexity and Population Predictions. The Alpine Marmot as a Case Study by Stephens, Philip A., Frey-Roos, Fredy, Arnold, Walter, Sutherland, William J.

“…1. During the past 15 years, models have been used increasingly in predictive population ecology. Matrix models used for predicting the fates of populations…”
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Impact of livestock and settlement on the large mammalian wildlife of Bale Mountains National Park, southern Ethiopia by Stephens, Philip A, d'Sa, Candy A, Sillero-Zubiri, Claudio, Leader-Williams, Nigel

“…Large mammals, both wild and domestic, were censused in four study areas in Bale Mountains National Park (BMNP), southern Ethiopia, from April until August…”
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Instability of a novel multicolored flower trait in inbred and outcrossed soybean lines by Johnson, E.O.C. (University of Illinois, Urbana, IL.), Stephens, P.A, Fasoula, D.A, Nickell, C.D, Vodkin, L.O

“…A novel, multicolored flower trait with pink and purple sectors or pink and purple flowers on the same plant was found in the soybean line LN89-5320-8-53 that…”
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