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  • Combining spatial modelling and radar to identify and protect avian migratory hot-spots

    Migrating landbirds are known to follow coast lines and concentrate on peninsulas prior to crossing water bodies, es- pecially during daylight but also at night, creating enhanced potential collision hazards with man-made objects. Knowing where these avian migration "hot-spots" occur in time and space is vital to improve flight safety and inform the spatial planning process (e.g. environmental assessments for offshore windfarms). We developed a simple spatial model to identify avian migration hot- spots in coastal areas based on prevailing migration orientation and coastline features known, from visual and radar observations, to concentrate migrating landbirds around land masses. Regional scale model validation was achieved by combining nocturnal passerine movement data gathered from two tier radar coverage (long-range dual-polarization Doppler weather radar and short- range marine surveillance radar) and standardised bird ringing. Applied on a national scale, the model correctly identified the ten most important Danish coastal hot-spots for spring migrants and predicted the relative numbers of birds that concentrated at each site. These bird numbers corresponded well with historical observational data. Here, we provide a potential framework for the es- tablishment of the first three-dimensional avian airspace sanctuaries, which could contribute to more effective conservation of long-distance migratory birds [Current Zoology 60 (5): 680-691, 2014].
    Mark DESHOLM,Rashpal GILL,Thomas BOVITH,Anthony D. FOX - 动物学报(英文版)
    文章来源: 万方数据
  • 地铁保护区变形自动化监测技术应用研究

    结合某地铁保护区隧道结构变形安全监测实例,论述了自动化远程监测系统在地铁保护区隧道结构变形监测中的应用,通过该系统实现了运营期隧道结构多指标变形信息获取的全天候、实时化、自动化,并结合人工监测数据进行了对比分析.结果表明,该自动化远程监测系统所获数据具有较高的精度,能够满足地铁保护区监测多指标自动化监测需求,具有良好的应用前景和推广价值.
    徐春明,汪春桃,孙泽信,刘亚楼,赵为民 - 工程勘察
    文章来源: 万方数据
  • 斯巴鲁成功举办 2012年生态环保之旅 完成对江苏大丰麇鹿国家级自然保护区探访

    6月16日,斯巴鲁汽车(中国)有限公司与国家林业局下属中国野生动物保护协会联合举办的"2012年斯巴鲁生态环保之旅"圆满结束.在本次活动中,由斯巴鲁汽车(中国)有限公司工作人员、国家林业局野生动物保护协会工作人员、多家媒体人员以及斯巴鲁车主组成的考察团完成了对江苏大丰麋鹿国家级自然保护区的探访.
     - 汽车实用技术.自驾游
    文章来源: 万方数据
  • Foraging site recursion by forest elephants Elephas maximus borneensis

    Recursion?by?herbivores?is?the?repeated?use?of?the?same?site?or?plants.?Recursion?by?wild?animals?is?rarely?investigated?but?may?be?ubiquitous.?Optimal?foraging?theory?predicts?site?recursion?as?a?function?of?the?quality?of?the?site,?extent?of?its?last?use,?and?time?since?its?last?use?because?these?influence?site?resource?status?and?recovery.?We?used?GPS?collars,?behaviour?and?site?sampling?to?investigate?recursion?to?foraging?sites?for?two?elephant?Elephas?maximus?borneensis?herds?in?the?Lower?Kinabatangan?Wildlife?Sanctuary,?Borneo,?over?a?12?month?period.?Recursion?occurred?to?48?out?of?87?foraging?sites?and?was?most?common?within?48?hours?or?between?151-250?days,?indicating?two?different?types?ofrecursion.?Recursion?was?more?likely?to?occur?if?the?site?had?previously?been?occupied?for?longer.?Moreover,?the?time?spent?at?a?site?at?recursion?was?the?same?as?the?time?spent?at?the?site?on?the?first?occasion.?The?number?of?days?that?had?passed?between?the?first?visit?and?recursion?was?also?positively?correlated?with?how?much?time?was?spent?at?the?site?at?recursion.?Habitat?type?also?influenced?the?intensity?of?site-use,?with?more?time?spent?at?recursion?within?riverine/open?grass?areas?along?forest?margins?compared?to?other?habitat?types.?Recursion?is?a?common?behaviour?used?by?the?elephants?and?its?pattern?suggests?it?may?be?a?foraging?strategy?for?revisiting?areas?of?greater?value.?The?qualities?of?recursion?sites?might?usefully?be?incorporated?into?landscape?management?strategies?for?elephant?conservation?in?the?area?[Current?Zoology?60?(4):?551-559,?2014].
    Megan ENGLISH,Marc ANCRENAZ,Graeme GILLESPIE,Benoit GOOSSENS,Sen NATHAN,Wayne LINKLATER - 动物学报(英文版)
    文章来源: 万方数据
  • 雷殿生车行阿尔金

    阿尔金山国家级自然保护区是中国四大无人区之一,保留了最完整、原始的高原生态类型,有雪山沙漠的纯净美景和许多珍稀野生动物,具有很高的科学考察和探险旅游价值.今年"五一"期间,原本计划尝试徒步穿越这片无人区的"中国徒步第-人'雷殿生,却机缘巧合地成就了一段自驾之旅.
    路客,毛虫,刘旭 - 汽车实用技术.自驾游
    文章来源: 万方数据
  • 源自建造的设计-四川栗子坪自然保护区熊猫监测站的材料、系统与施工

    通过四川栗子坪自然保护区熊猫监测站项目的建筑材料以及系统的选择,基础、外围护和屋顶等组件构造设计以及现场施工组织,讨论了一种尊重建造约束的设计方式,从中获得设计启发的可能,以及集成设计方法对建成物建构品质的影响.
    张东光,朱竞翔 - 建筑学报
    文章来源: 万方数据
  • 攀枝花苏铁自然保护区夏季PM2.5中二次有机物的研究

    采用混合溶剂提取、N,O-双(三甲硅醚)-三氟乙酰胺(BSTFA)衍生化预处理和 GC/MS 分析技术,对四川攀枝花苏铁国家自然保护区PM2.5中的大气二次有机气溶胶进行了定量检测,探讨了研究区域内气溶胶中异戊二烯、α-/β-蒎烯光氧化产物、β-石竹酸及小分子羧酸和的浓度水平与变化规律,并讨论了有机物占有机碳(OC)的比值。结果表明,24 h PM2.5中,异戊二烯光氧化产物、α-/β-蒎烯光氧化产物和β-石竹酸的平均浓度分别为51.2、16.1和1.7 ng/m3;苹果酸和2-羟基戊二酸的平均浓度分别为12.4 ng/m3和4.9 ng/m3。OC和元素碳(EC)的平均浓度分别为20.3μg/m3和5.9μg/m3。异戊二烯氧化产物、α-/β-蒎烯氧化产物及β-石竹烯氧化产物对OC的贡献率分别为1.63%、0.34%和0.36%。
    赖玮,杨永琼,李黎,代东决,余志祥,莫恒勤,蒲金国,邓仕槐 - 地球化学
    文章来源: 万方数据
  • 科技融合文化 创新推动发展-北京市西城区青少年"行走大栅栏探访老字号"活动

    非物质文化遗产已纳入中小学课程.学生了解了京剧脸谱知识,对同仁堂的药、全聚德的烤鸭也不再陌生,但对其中蕴含的非物质文化的内涵和魅力,以及其中的科学技术知识、新科技的运用缺乏认识.前门外大栅栏是北京老字号高密度聚集区,也是北京25片历史文化保护区之一.以这些老字号为载体和窗口,让学生用自己的眼睛、耳朵、
    朴红坤 - 中国科技教育
    文章来源: 万方数据
  • Birds on the move: Special column on bird movement

    Studying movements is essential for shedding light on a number of issues related to avian biology: behavioral aspects such as foraging, migratory routes and strategies, navigation and orientation mechanisms; ecological aspects such as metapopulation dynamics, insular biogeography, seed dispersal, disease spread; conservation biology such as the effects of habitat fragmentation, identification of key areas deserving protection, effects of climate change. Despite these relevant issues, the topic of "Movement ecology" on its own has only been highlighted recently (Nathan et al., 2008);although, the investigation of animal movements has always been one of the most fascinating topics for any zoologist and often is also quite a difficult task.
    Giuseppe BOGLIANI,Ugo MELLONE,Guest Editors - 动物学报(英文版)
    文章来源: 万方数据
  • 性激素与鸟类鸣唱

    鸣禽是研究神经发育和行为性别差异的理想的模式动物.大多数鸣禽的鸣唱行为和脑中的鸣唱控制系统都表现出性两态性,性激素在鸣唱控制系统的季节可塑性和鸣唱行为变化中起关键作用.
    孟玮 - 生物学教学
    文章来源: 万方数据
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