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Regeneration status of riparian tree species in two sites that differ in land-use in the Okavango Delta,Botswana

Journal of Forestry Research 2017年第5期28卷 1073-1082页

作者： Gaolathe Tsheboeng mike murray-hudson Keotshephile Kashe Okavango Research Institute

Human communities from the Okavango Delta benefit from the services and goods provided by the wetland ecosystem through its riparian vegetation. These include food and timber products used for the construction of shelter and canoes. Despite the importance of riparian tree species in the Delta, their regeneration structure is currently unknown. For riparian trees to be managed sustainably, information on the current regeneration status of the trees under different land uses is needed. The Moremi game reserve (protected area) and Seronga (communal area) were selected for this study on the regeneration of riparian tree species of Croton megalobotrys Müll. Arg, Philenoptera violacea (Klotzsch) Schrire, Senegalia nigrescens (Acacia nigrescens) Oliv and Diospyros mespiliformis Hochst. ex A. Dc. The height of each individual tree was estimated in randomly selected 30 plots (15 from each site) of 20 × 50 m for assignment to five regeneration classes: 0-0.5, 0.5-1, 1-2, 2-4 and >4 m. Linear regression was used to infer regeneration status of each species. An independent-sample Student’s t test was used to determine any significance differences in seedling density/ha and sapling density/ha between different sites at p < 0.05. Diospyros mespiliformis populations had an unstable regeneration structure in both sites, while P. violacea regeneration was stable regardless of land-use type. Croton megalobotrys and S. nigrescens had an unstable regeneration pattern in Seronga, while in Moremi it was stable; thus, the regeneration structure of C. megalobotrys and S. nigrescens is affected by land-use. This result implies that intervention is needed to conserve the two species in Seronga where the current land-use appears to be incompatible with regeneration; D. mespiliformis also needs to be conserved in both Moremi and Seronga.

关键词： Conservation Regeneration Riparian Okavango and wetlands

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Assessment of benefits and risks of growing Jatropha(Jatropha curcas) as a biofuel crop in sub-Saharan Africa: a contribution to agronomic and socio-economic policies

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Journal of Forestry Research 2018年第1期29卷 1-12页

作者： Keotshephile Kashe Donald L.Kgathi mike murray-hudson Kelebogile B.Mfundisi Okavango Research Institute University of Botswana

In sub-Saharan Africa（SSA）, the main goals behind the development of a biofuel industry are employment creation and income generation. Jatropha（Jatropha curcas L.） has emerged as a candidate for biodiesel production. It is a non-edible oil producing, drought-resistant plant that can be grown on marginal land with limited water and low soil fertility. However, these are also attributes that typify weedy and invasive plant species. Adding to these concerns are the general questioning of whether biofuel production will reduce Greenhouse gas（GHG）emissions globally. Currently, there is limited information on the potential invasiveness of many biofuel crops, and in particular, the potential risks of cultivating Jatropha. This paper aims to assess the benefits and risks, especially risks,of growing Jatropha for biodiesel production. Jatropha should be screened through a science-based risk-assessment procedure to predict the risk of becoming invasive before it is released for large-scale commercial *** net GHG savings can be achieved through the cultivation of Jatropha, considering two main factors： no landuse change and crop management without chemical fertilization.

关键词： Biofuel Invasive Jatropha Risk

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The influence of cultivation frequency on weed species composition and diversity in flood recession farming in the Okavango Delta, Botswana

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Ecological Processes 2018年第1期7卷 380-391页

作者： Modise Nthaba Keotshephile Kashe Michael murray-hudson University of Botswana Okavango Research InstitutePrivate Bag 285MaunBotswana

Introduction:Flood recession farming,locally known as molapo farming,is an important livelihood activity for the subsistence farming community around the Okavango *** study was aimed at investigating the influence of cultivation frequency on non-crop species *** was carried out in the peripheral settlements of Shorobe,Makalamabedi and Lake ***:Vegetation sampling was conducted from March to April 2016 in 36 fields of varying historical cultivation *** cultivation frequencies were 5,10 and 15 years with an uncropped control *** was done in 1-m^(2) quadrats placed 10 m apart along a line ***’s diversity and equitability indices were used to compare diversity for each cultivation frequency within and across the study *** Kruskal–Wallis test was used to investigate significant differences in diversity between cultivation *** of abundance was used to determine the association of weeds with the cultivation ***:Cultivation frequency did not influence species diversity(p>0.05)at either Lake Ngami or *** evenness was significantly different(p<0.05)between the cultivation frequencies at Shorobe,but not at either Makalamabedi or Lake *** was a significant difference(p<0.05)in diversity indexes across the four cultivation *** 5-year frequency recorded the highest median score(Md=1.352)while the 15-year frequency recorded the lowest median score(Md=1.035).Corchorus tridens was the most abundant noncrop species at the 5-and 15-year *** dactylon was most abundant in the 10-year frequency while Cyperus esculentus was most abundant in uncropped ***:Cultivation frequency influenced weed species diversity and composition in flood recession *** recession farming fields were dominated by common weed species which are also troublesome in dryland arable *** sites were composed of wetland species that tolerat

关键词： Flood recession farming Cultivation frequency Species composition Species diversity

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Seasonal resource selection of an arboreal habitatspecialist in a human-dominated landscape: A case studyusing red panda

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Current Zoology 2023年第1期69卷 1-11页

作者： Damber Bista Greg S.Baxter Nicholas J.hudson Peter J.murray School of Agriculture and Food Sciences(Wildlife Science Unit) The University of QueenslandGattonQLD 4343Australia School of Agriculture and Environmental Science University of Southern QueenslandDarling HeightsQLD 4350Australia

Human-dominated landscapes provide heterogeneous wildlife habitat. Conservation of habitat specialists, like red pandas Ailurus fulgens, inhabiting such landscapes is challenging. Therefore, information on resource use across spatial and temporal scales could enable informed-decisionmaking with better conservation outcomes. We aimed to examine the effect of geo-physical, vegetation, and disturbance variables on fine-scalehabitat selection of red pandas in one such landscape. We equipped 10 red pandas with GPS collars in eastern Nepal in 2019 and monitoredthem for 1 year. Our analysis was based on a generalized-linear-mixed model. We found the combined effect of geo-physical, vegetation, anddisturbance variables resulted in differences in resource selection of red pandas and that the degree of response to these variables variedacross seasons. Human disturbances, especially road and cattle herding activities, affected habitat utilization throughout the year whereas othervariables were important only during restricted periods. For instance, geo-physical variables were influential in the premating and cub-rearingseasons while vegetation variables were important in all seasons other than premating. Red pandas selected steeper slopes with high solarinsolation in the premating season while they occupied elevated areas and preferred specific aspects in the cub-rearing season. Furthermore,the utilized areas had tall bamboo in the birthing and cub-rearing seasons while they also preferred diverse tree species and high shrub coverin the latter. Our study demonstrates the significance of season-specific management, suggests the importance of specific types of vegetationduring biologically crucial periods, and emphasizes the necessity to minimize disturbances throughout the year.

关键词： Ailurus fulgens anthropogenic disturbances habitat specialists habitat utilization resource use spatio-temporal variation vegetation

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Dynamics of ecosystems and anthropogenic drivers in the Yellow Sea Large Marine Ecosystem

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Acta Oceanologica Sinica 2022年第6期41卷 1-3页

作者： Jun Sun Yinfeng Guo Gyung Soo Park Andrew hudson Institute for Advanced Marine Research China University of GeosciencesGuangzhou 511462China National Marine Hazard Mitigation Service Ministry of Natural ResourcesBeijing 100194China Department of Marine Biotechnology Anyang UniversityAnyang 14028R.O.Korea Bureau for Policy and Programme Support United Nations Development ProgrammeNew York 10017USA

In the developed world,governance of marine ecological environment is the important part of the national ecological and economic *** Yellow Sea is one of large marine ecosystems in the seas of East Asia,which is an extension of one of the largest continental shelf areas,and forms a huge but shallow sediment body in its south area which is geographically unique in the *** a region with the most fragile natural environment,unparalleled global ecological significance and the most urgent protection needs,the Yellow Sea ecological zone is becoming a common concern of countries around the Yellow Sea and beyond,such as tidal flats and the staging migratory birds(murray et al.,2015).

关键词： shallow tidal shelf

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Predicting Lung Function Decline with Serum Pneumoproteins: A Case Control Study

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Open Journal of Rheumatology and Autoimmune Diseases 2014年第1期4卷 52-57页

作者： Shikha Mittoo Marie hudson Ernest Lo Russell Steele Keng Wong David Robinson Zoheir Bshouty murray Baron Department of Medicine Mount Sinai Hospital Toronto Ontario Canada Department of Medicine Rheumatic Disease Unit Section of Rheumatology University of Manitoba Winnipeg Canada Department of Medicine Section of Respirology University of Manitoba Winnipeg Canada. Jewish General Hospital and McGill University Montreal Canada

Introduction: Predictors of lung function decline in systemic sclerosis (SSc) are unknown. Serum pneumoprotein levels, surfactant protein-D (SP-D) and Krebs von den Lungen-6 (KL-6), correlate with pulmonary damage. We aimed to test whether levels can predict rapid lung function decline in SSc. Methods: SSc patients who had serial pulmonary function tests (PFT) were analyzed for SP-D and KL-6 levels by enzyme linked immunosorbent assay. Levels were correlated with an annual rate of decline in % predicted forced vital capacity (FVC) of >﹣2% (out-come);controls did not experience this FVC decline. Uni- and multi-variate analysis, adjusting for age, disease duration, gender, baseline % predicted FVC, SP-D, and KL-6, was performed. Results are reported as mean ± SD. Results: Thirty three cases and 25 controls had a disease duration of 8.8 ± 7.3 and 8.3 ± 6.1 years, respectively. In adjusted analyses, lung function decline correlated with greater baseline FVC OR = 1.03 [95% CI of 1.00-1.07];a trend towards significance was observed for greater levels of SP-D with FVC decline, OR = 1.37 [95% CI of 0.96-2.12]. Conclusion: Our data provide evidence that SSc patients with long-standing disease are still at risk for lung function decline and SP-D levels may predict lung function decline.

关键词： Systemic Sclerosis Interstitial Lung

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Exercise is more than medicine: The working age population's well-being and productivity

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Journal of Sport and Health Science 2016年第2期5卷 159-165页

作者： Gisela Sj?gaard Jeanette Reffstrup Christensen Just Bendix Justesen mike murray Tina Dalager Gitte Hansen Fredslund Karen S?gaard Department of Sports Science and Clinical Biomechanics Research Unit of Physical Activity and Health in Work Life University of Southern Denmark

Background： Physical activity （PA） includes muscle activity during exercise, manual work, and leisure time activities including sport. Conflicting results exist regarding health effects of PA that may deteriorate with manual work and elite sports, but improve when performed in moderation in accordance with international guidelines and may additionally enhance well-being and productivity. Methods： In Denmark 15 randomized controlled trials have been conducted, introducing exercise at the workplace enrolling 〉3500 workers. The interventions lasted from 10 to 52 weeks and offered -1 h weekly supervised exercise during working hours according to the concept of intelligent physical exercise training （IPET） that is based on evidenced sports sciences training principles and tailored to work exposure, employee health status, and physical capacity. Questionnaire surveys and health checks including blood and muscle sampling were performed at baseline and follow-up. The job groups included： office and computer workers, dentists, industrial technicians, cleaning personnel, health care workers, construction workers, and fighter/helicopter pilots. Results： In all job groups significant improvements were documented regarding health outcomes. These were job group specific： neck pain was reduced among office and computer workers, dentists, industrial laboratory technicians, health care workers as well as fighter pilots. Cardio- respiratory fitness--a health risk indicator for cardio-metabolic diseases--was improved among office and computer workers, health care workers, and construction workers. Additionally, other improvements were evidenced such as increased muscle strength and balance control. Importantly, productivity increased with improved muscle strength and decreased body mass index. Conclusion： IPET does enhance health if an exercise program with evidenced efficacy is implemented by expert trainees with support of the employer. Accordingly, in every study group outcomes of

关键词： Physical activity Physical exercise training Workplace health promotion

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Climate Change and Sustainable Development:Realizing the Opportunity

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AMBIO－人类环境杂志 2006年第1期35卷 2-8页

作者： John Robinson mike Bradley Peter Busby Denis Connor Anne murray Bruce Sampson Wayne Soper 资源、环境与可持续发展研究所和不列颠哥伦比亚大学地理系的教授 Canfor的纸浆与造纸小组 Busby Perkins＋Will公司的常务董事 QuestAir技术公司的主席温哥华国际机场管理局的副主席主管金融与投资关系部的财政部门世界野生动物基金（加拿大）的主任

气候变化与可持续发展存在多方面的联系。尽管在与气候变化有关的文献中这些联系开始受到关注，但焦点多集中于从气候变化的角度分析可持续发展，而不是通过可持续发辰研究气候变化。而且，关于如何在实践中形成这些联系的系统研究很少... 详细信息

气候变化与可持续发展存在多方面的联系。尽管在与气候变化有关的文献中这些联系开始受到关注，但焦点多集中于从气候变化的角度分析可持续发展，而不是通过可持续发辰研究气候变化。而且，关于如何在实践中形成这些联系的系统研究很少。本文从可持续发展的角度研究气候变化。为了说明从可持续发展的角度研究气候变化将可能如何改变气候变化的研究方法，本文介绍加拿大不列颠哥伦比亚省一个由企业、当地政府和学术界代表组成的、专门为省政府气候变化政策提供建议的工作小组的研究结果。工作小组发现可持续发展可以提供一个比气候政策本身更为有效的方式去实现气候政策的目标。本文讨论不列颠哥伦比亚省随后的气候变化发展，并提出该省及其它区域如何最好地执行这个可持续发展方法的一些建议。

关键词：气候变化政策可持续发展不列颠哥伦比亚气候政策可持续发辰角度分析系统研究省政府学术界加拿大

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扎里亚季耶公园俄罗斯莫斯科市

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世界建筑导报 2021年第6期36卷 116-119页

作者： Charles Renfro David Chacon Brian Tabolt Ayat Fadaifard Seongbeom Mo Dino Kiratzidis Gabriel Bollag James murray Zoe Small Trevor Lamphier mike Robitz Lindsay Harkema Jose Tijerina Kelsey Olafson 无不详 DS+R建筑事务所

距圣巴西勒教堂、红场与克里姆林宫仅几步之遥,扎里亚季耶公园所处位置历史悠久,在这里可以饱览俄罗斯的所有历史和其不断发展的愿景。此处占地35英亩,无数次见证着历史的沧桑变迁。19世纪,这里曾是犹太人飞地。后来,一座斯大林主义摩... 详细信息

距圣巴西勒教堂、红场与克里姆林宫仅几步之遥,扎里亚季耶公园所处位置历史悠久,在这里可以饱览俄罗斯的所有历史和其不断发展的愿景。此处占地35英亩,无数次见证着历史的沧桑变迁。19世纪,这里曾是犹太人飞地。后来,一座斯大林主义摩天大楼在此处破土动工,尽管最终未曾建成。欧洲最大的酒店——罗西娅酒店——也一直屹立于此,直到2007年才被拆除。之后五年里,由于设计师诺曼·福斯特一直在负责筹划将其扩建为商业中心,这片占据莫斯科市中心四分之一面积的核心地段一直被围墙环绕。2012年,莫斯科市政府与莫斯科首席建筑师谢尔盖·库兹涅佐夫组织了一场设计竞赛,旨在将这片曾经私有化的商业区域改造成一处绿地公园。由DS+R建筑事务所牵头、与Hargreaves设计事务所、Citymakers公司联合组成的国际竞标团队最终从来自27个国家的90份设计方案中脱颖而出。

关键词：设计事务所建筑事务所诺曼·福斯特设计竞赛商业中心库兹涅佐夫斯大林主义莫斯科市

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