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Storylines of family medicine Ⅱ:foundational building blocks—context,community and health

Family Medicine and Community Health 2024年第S3期12卷 12-22页

作者： William B Ventres Leslie A Stone Rupal Shah Tamala Carter Geoffrey M Gusoff Winston Liaw Bich-May Nguyen Joanna V Rachelson mary alice scott Teresa L Schiff-Elfalan Seiji Yamada Robert C Like Kathleen Zoppi A Peter Catinella Richard M Frankel Shailendra Prasad Family and Preventive Medicine University of Arkansas for Medical Sciences College of MedicineLittle RockArkansasUSA Bridge Lane Group Practice LondonUK Penn Center for Community Health Workers University of PennsylvaniaPhiladelphiaPennsylvaniaUSA National Clinician Scholars Program UCLA David Geffen School of MedicineLos AngelesCaliforniaUSA Health Systems and Population Health Sciences University of Houston Tilman J Fertitta Family College of MedicineHoustonTexasUSA Southern New Mexico Family Medicine Residency Program Las CrucesNew MexicoUSA New Mexico Primary Care Training Program Silver CityNew MexicoUSA Anthropology New Mexico State UniversityLas CrucesNew MexicoUSA Family Medicine and Community Health University of Hawai'i at Manoa John A Burns School of MedicineHonoluluHawaiiUSA Family Medicine and Community Health Rutgers Robert Wood Johnson Medical SchoolNew BrunswickNew JerseyUSA Family Medicine Indiana University School of MedicineIndianapolisIndianaUSA Family Medicine–Transmountain Texas Tech University Health Sciences CenterEl PasoTexasUSA Medicine Indiana University School of MedicineIndianapolisIndianaUSA Family Medicine and Community Health University of Minnesota Medical School-Twin Cities CampusMinneapolisMinnesotaUSA

Storylines of Family Medicine is a 12-part series of thematically linked mini-essays with accompanying illustrations that explore the many dimensions of family medicine,as interpreted by individual family physicians and medical educators in the USA and elsewhere around the ***‘Ⅱ:foundational building blocks—context,community and health’,authors address the following themes:‘Context—grounding family medicine in time,place and being’,‘Recentring community’,‘Community-oriented primary care’,‘Embeddedness in practice’,‘The meaning of health’,‘Disease,illness and sickness—core concepts’,‘The biopsychosocial model’,‘The biopsychosocial approach’and‘Family medicine as social medicine.’May readers grasp new implications for medical education and practice in these essays.

关键词： thematic illustration dimensions

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Long-term monitoring of cycles in Clethrionomys rutilus in the Yukon boreal forest

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Integrative Zoology 2024年第1期19卷 27-36页

作者： Charles J.KREBS alice J.KENNEY B.scott GILBERT Rudy BOONSTRA Department of Zoology University of British ColumbiaVancouverBritish ColumbiaCanada Renewable Resources Management Program Yukon UniversityWhitehorseYukonCanada Department of Biological Sciences University of Toronto ScarboroughTorontoOntarioCanada

Baseline studies of small rodent populations in undisturbed ecosystems are *** report here 50 years of mon-itoring and experimentation in Yukon of a dominant rodent species in the North American boreal forest,the red-backed vole Clethrionomys *** voles breed in summer,weigh 20–25 g,and reach a maximum density of 20 to 25 per *** populations have shown consistent 3–4-year cycles for the last 50 years with the only change being that peak densities averaged 8/ha until 2000 and 18/ha since that *** the last 25 years,we have measured food resources,predator numbers,and winter weather,and for 1-year social interactions,to estimate their contribution to changes in the rate of summer increase and the rate of overwinter *** these potential limiting factors could contribute to changes in density,and we measured their relative contributions statistically with multiple *** rate of winter decline in density was related to both food supply and winter *** rate of summer increase was related to summer berry crops and white spruce cone *** measure of predator numbers was related to winter or summer changes in vole *** was a large signal of climate change effects in these *** is no density dependence in summer population growth and only a weak one in winter population *** of our results provide a clear understanding of what generates 3–4-year cycles in these voles,and the major missing piece may be an understanding of social interactions at high density.

关键词： boreal forest climate change density dependence population cycles predation winter severity

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Annual-perennial plant relationships and species selection for desert restoration

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Journal of Arid Land 2013年第3期5卷 298-309页

作者： scott R ABELLA Stanley D SMITH Department of Environmental and Occupational Health University of Nevada Las VegasLas VegasNevada 89154-3064USA School of Life Sciences University of Nevada Las VegasLas VegasNevada 89154-4004USA

Exotic plant invasion is a growing concern in the conservation and management of indigenous arid land ecosystems. By creating areas of ameliorated microclimates and fertile soil below their canopies, perennial plants might influence exotic annual plant invasions. We conducted a quantitative literature review of studies that compared exotic annual plant abundance among native perennial plant species and interspace （open areas） microsites in North America＇s Mojave Desert, where exotic plant invasion has corresponded with increasing extent of wildfire and broad-scale ecosystem transformation. Ten studies compared exotic annual plant abundance between inter- spaces and below a total of 36 native perennial species. These studies revealed that：（1） With few exceptions, most native perennial species supported a greater abundance of exotic annuals than interspaces, indicating overall facilitation of exotic species by native perennials. （2） Exotic species abundance varied by orders of magnitude among native perennial species, with some perennial species harboring amounts of exotics similar to interspaces. （3） Distributions of dominant exotic species varied, where Bromus rubens displayed a greater affinity for below-perennial microsites than did Schismus spp. and Erodium cicutarium that often were most abundant in interspaces. Results suggest that the degree of facilitation of exotic plants warrants consideration when selecting native perennial species for revegetation and restoration projects.

关键词： Bromus rubens exotic fertile island invasive nurse plant positive plant interaction Schismus

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