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1.
The food habits of Wild ass (Equus hemionus) and Goitred gazelle (Gazella subgutturosa) in kalamaili Ungulate Reserve in autumn was described, based on the investigation conducted in 1992. Wild ass was much concentrated
around water sources, and had more food resource than Goitred gezelle. The quagmires in the reserve were critical conditions
as food and water bases for both species. In terms of present survey, it was estimated that 680 Wild ass and 8840 Goitred
gazelle lived in this reserve.
(Responsible Editor: Zhu Hong) 相似文献
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IntroductionMongoliangazelle(PrOCSPraguttuross)isaspecialruminantspeciesthathasnumerouspopulationsintheeasternpaFtofNetMonggolGrasslandandasignificantcomponentofthegrasslandecosystem.Thisspecieshasthehabittoselectspeciesandqualityofplantstograze.However,thepopulationhasdecreaseddramaticallyandfacesextinctioninChina(JiangetSI.1998).Therefore,itisveryimportanttostudythefoodhabitsandfoodchoicebyMongoliangazelleforpromotingtheprotectionandmanagementofremainingpopulation.Inapreviouspaper(Gao… 相似文献
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The food availability, composition of the diets and selective grazing of the Mongolian gazelle (Procapra gutturosa) were studied in Hulunber Grassland in Nei Monggol. The food availability of Mongolian gazelle showed seasonal changes. The
plant biomass was higher in spring and summer than that in autumn and winter. The fecal compositions of the gazelle demonstrated
that fibrous parts occupied 62.4%, 74.8%, and 66.0% in spring, autumn, and winter, respectively. The Mongolian gazelle preferred
to grazeCompositeae, Leguminosae, Allium spp. and other forbs in spring and autumn, while the grasses, such asAneurolepidium chinense andStipa spp. were selectively feeding in winter.
Responsible editor: Zhu Hong 相似文献
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卡拉麦里山有蹄类自然保护区蒙古野驴的数量与分布 总被引：2，自引：0，他引：2
2005年9—10月在新疆北部卡拉麦里山有蹄类自然保护区调查了蒙古野驴的数量和分布。调查过程共设置样线8条,总长640.90km,共发现野驴53群1 039头,平均群体大小为(11.90±7.84)头/群,最大群为189只,2～10头的小群遇见率最高,占总群体数的43.40%。采用实体观测垂距法计算,蒙古野驴的平均密度为(1.231±0.196)头/km~2。结合有效分布面积,可计算得出保护区内约有野驴(5 234±834)头。调查显示蒙古野驴主要分布于保护区北部和中部食物和水源条件较好的区域。 相似文献
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为掌握宽阔水国家级自然保护区鸟类多样性,从2012年7月至2013年8月采用样线法、样点法、布设红外相机、访问和搜集资料等方法对这一地区鸟类资源进行了调查。结果表明：保护区共记录鸟类191种,隶属于16目44科111属,有14种为国家重点保护鸟类。从鸟类区系上看,东洋种113种,古北种55种,广布种23种,分别占保护区鸟类的59．2％、28．8％和12．0％。在保护区鸟类中画眉科和雉科极具特色。对该区鸟类以G—F指数进行了多样性统计,保护区鸟类的G指数为4．5I,F指数为24．12,G-F指数为0．81,保护区的鸟类多样性较贵州梵净山国家级自然保护区要高。 相似文献
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CURRENT STATUS OF ANTELOPES IN CHINA 总被引：1，自引：0，他引：1
UpliftingofQinghai-TibetanPlatcausincemidTertiary'caused-climaticdifferc11tia-tionbetWeenwesternandeasternChina.Ontheotherhand,thestrongmonsoonsincelatePleistoccnehasenhancedtheenvironmentalchanges,westernChinaundersuchenviron-mentalchangeshasbecomedrier'andstepPeanddesertvegetationshavedeveloPedinthesearidAsianinlandwhereasshortalpinevegeta-tionshavedeveloPedontheQinghai-TibetanPlateau.Thus'theenvironn1entalchangesinrecent3million\'earscreated\'asthabitatforUngulatespecies,particularly"… 相似文献
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2011年1月3日～2月26日,对西藏拉萨市林周县卡孜水库越冬黑颈鹤的夜宿地采用GPS定位进行观察,经统计分析,结果表明,在林周县卡孜水库黑颈鹤越冬地总共确定黑颈鹤的夜宿地11个,大约有948只夜宿的黑颈鹤,占该地段白天觅食黑颈鹤数量的59％,其中数量超过40只的夜宿地共有6个.黑颈鹤在卡孜水库附近一般选择临水浅滩、视野开阔的暖河、避风点的湿地过夜,有些黑颈鹤还选择在辫状小河道的沙丘过夜.黑颈鹤飞离夜宿地的时间集中在上午9:00～10:00,主要飞往觅食地,飞回夜宿地的时间集中在19:30左右;主要与斑头雁共用夜宿地.随着时间和气温的变化,选择性地改变夜宿地,但变化不大.研究结果为保护黑颈鹤提供依据. 相似文献
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富营养化水中14种野生植物蒸腾和营养吸收的相关性 总被引：5，自引：0，他引：5
研究了富营养化水栽培下14种野生植物蒸腾和营养吸收的关系,结果表明,植物的日蒸腾量大小顺序与植物对环境因子的响应一致,且高蒸腾量的6种植物对环境因子的响应显著大于其它低蒸腾量的植物（P＜0．05）;植物的日蒸腾量与营养元素的吸收也存在着显著正相关,因此,日蒸腾量可作为人工湿地净化工程植物选种的一个重要指标。本项结果表明,鸭芹、凤眼莲、芦苇、早熟禾、水芹共5种植物可选为人工湿地净化工程的植物。 相似文献
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指出了蒙古瞪羚和普氏原羚在历史上曾广泛分布于我国内蒙古、新疆、甘肃、宁夏等地,近年来由于人类活动等诸多因素的影响,两种动物的种群数量都急剧下降,分布区范围锐减。分析了其历史分布及致危因素,提出了相应的保护措施。 相似文献
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蟒河保护区冠鱼狗繁殖生态 总被引：1，自引：0，他引：1
1996年1998年的5月-10月，在山西蟒河国家级自然保护区对冠鱼狗的繁殖生态进行了初步观察，其内容包括季节迁徒、栖息环境、种群数量、繁殖生物学、食物组成等。 相似文献
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Wild food constitutes a substantial part of household food consumption around the world, but rapid land use changes influence the availability of wild foods, which has implications for smallholders' food and nutrient intake. With increasing commercial agriculture and biodiversity conservation efforts in forested tropical regions, many shifting cultivation systems are being intensified and their extent restricted. Studies examining the consequences of such pressures commonly overlook the diminishing role of wild food. Using a combination of collection diaries, participant observation, remote sensing, and interviews, we examined the role of agriculture-forest landscapes in the provision of wild food in rapidly transforming shifting cultivation communities in northern Laos. We found that wild food contributed less to human diets in areas where pressure on land from commercial agriculture and conservation efforts was more intense. Our results demonstrate that increasing pressure on land creates changes in the shifting cultivation landscape and people's use thereof with negative effects on the quality of nutrition, including protein deficiency, especially in communities adjacent to core conservation areas. Our study shows the importance of adopting a more nutrition-sensitive approach to the linkages between commercial agriculture and biodiversity conservation (and the policies that promote them), wild food provisioning, and food security. 相似文献
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白水江自然保护区大熊猫主食竹类资源及其研究方向雏议 总被引：1，自引：0，他引：1
本文重点对白水江自然保护区内大熊猫的主食竹类资源及其特点，立地条件对竹林生长发育的的影响等做了分析；并就当前和今后对大熊猫主食竹类的研究提出了自己的观点和看法。 相似文献
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对皖东低丘主要森林类型枯落物储量、持水量、吸水速率、拦蓄量等水文参数进行了调查分析研究。结果表明,麻栎林（8年）、湿地松林（24年）、马尾松林（14年）、天然次生林枯落物储量依次为21．53t／hm^2、21．34t／hm^2、15．51t／hm^2、12．45t／hm^2;天然次生林枯落物未分解层最大持水率315％,枫香林275％、麻栎林249％、松栎混交林175％、湿地松林174％、马尾松林149％;松栎混交林枯落物半分解层最大持水率252％,天然次生林225％、麻栎林222％、枫香林215％、马尾松林183％、湿地松林181％;8年生麻栎林拦蓄能力最强,有效拦蓄量达34．48t／hm^2,其次为天然次生林、湿地松林（24年）、马尾松林（14年）,阔叶树、针阔混交林拦蓄能力明显高于针叶树：短周期麻栎薪炭林造林后前3年林分枯落物储量少,第4年枯落物明显增加,并形成半分解层,7年生麻栎林有效拦蓄量已超过14年生马尾松林,8年生其枯落物储量高于当地分布的主要植被类型,具有良好的水源涵养和保持水土作用。 相似文献
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Forty-five species of wild edible fruits were identified and traditional local knowledge of their usage was recorded in 40 villages of Kodagu district in Central Western Ghats, India one of the eight top hotspots of biodiversity in the world. We combined biodiversity inven-tory of trees with village interviews to record traditional ecological knowledge. Wild edible fruits were an opportunistic source of food for rural people. Wild edible fruits were rich in minerals, vitamins, carbohy-drates, proteins, fats and fiber. In recent years there has been a decline in numbers of wild fruit trees due to changes in land use from uncultivated private wooded area to cardamom and coffee cultivation. The availability of wild edible fruits that were once very common on private cultivated areas has declined and their distributions are now restricted more to jungles and wildlife sanctuaries. We propose methods for conservation and describe the need for sustainable utilization to provide supplemen-tary sources of nutritional and pharmaceutically useful edible wild fruits. 相似文献
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忍冬和华南忍冬叶表皮扫描电镜观察及其生态适应性研究 总被引：2，自引：0，他引：2
利用扫描电镜观察了忍冬(Lonicera japonica Thunb)和华南忍冬(Lonicera confus)叶表皮形态特征,观察指标包括:气孔器、表皮毛、表皮细胞等。结果表明:气孔仅分布在下表皮,气孔器呈无规则型散生;上表皮细胞的垂周壁呈沟槽状下陷;下表皮密被表皮毛(包括腺状毛和非腺毛),同时还分布有瘤状的草酸钙簇晶。为进一步证明这种瘤状结构是否为草酸钙簇晶,作者发现利用Fluo-3/AM(钙离子荧光指示剂)处理的活体叶片在激光共聚焦显微镜下能够发出强烈的荧光。此外,通过电子探针对瘤状物进行分析,发现其元素组成为C、O、Ca。上述叶表皮构造特征,有利于减少植物体水分散失,还有助于植物适应富钙的石灰土,从而适应我国西南岩溶区特殊的干旱、富钙的环境。电镜观察结果表明,在忍冬叶上表皮中脉处有呈线状分布的腺状表皮毛,而华南忍冬叶上表皮则无表皮毛分布,这一微形态特征可以作为二者种间特异性差别,从而为二者的合理区分提供一定的依据。图13表2参30。 相似文献
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