Results 1 to 10 of about 1,237 (170)
How much biotic nativeness matters across human demographic groups. [PDF]
Abstract Many central concepts of conservation biology—such as nativeness—are structured by ecological and social factors. However, the social consequences of using these concepts to make conservation decisions remain inadequately understood. Some researchers argue that nativeness, rather than acting as an objective proxy for important ecological ...
Eyster HN, Gould RK.
europepmc +2 more sources
Translation of Jiuzhaigou Tourism Websites From the Perspective of Eco-translatology [PDF]
Taking Jiuzhaigou tourism website as an example and Eco-translatology as guidance theory, this paper analyzes the tourism text from language, cultural and communicative dimensions to obtain suggestions for tourism text translation. In translating tourism
LI, Lijun, SHAO, Wenxin
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Association of reproductive traits with captive‐ versus wild‐sourced birds in trade
Abstract The wildlife trade is a billion‐dollar global business, involving millions of people, thousands of species, and hundreds of millions of individual organisms. Unravelling whether trade targets reproductively distinct species and whether this preference varies between captive‐ and wild‐sourced species is a crucial question.
Oscar Morton +3 more
wiley +1 more source
The rainforests of Southeast Asia have a high diversity of animals, many of which eat fruit and disperse the seeds of forest plants. Several large‐bodied species occur in these forests; these animals are predicted to have especially important seed dispersal roles but are also among the species most threatened by defaunation.
Aurélie Albert‐Daviaud +8 more
wiley +1 more source
A review on the estimation of Secchi disk depth by remote sensing in inland and nearshore case 2 waters [PDF]
自1865年,意大利天文学家Pietro Angelo Secchi发明塞克盘(Secchi disk)以来,使用塞克盘测量水体透明度迄今已有近150 a的历史。透明度(Secchi disk depth)是指放入水中的塞克盘能够看得见的最大深度[1]。它是描述水体光学性质的基本参数之一,也是水质调查中的一个重要指标 ...
施平, 禹定峰, 邢前国
core +1 more source
Heavy metal distribution in the eggs of four species of ardeids and in the body tissues of Egretta garzetta in some [PDF]
本研究采用电感耦合等离子质谱(ICP-MS)对福建岛屿白鹭(Egrettagarzetta)、池鹭(Ardeolabacchus)、黄嘴白鹭(Egrettaeulophotes)和岩鹭(Egrettasacra)卵的不同部位及白鹭雏鸟各组织中的重金属进行检测,测定了铬(Cr)、锰(Mn)、镍(Ni)、铜(Cu)、锌(Zn)、镉(Cd)和铅(Pb)等7种重金属元素的含量。对重金属元素在卵的各部位及雏鸟各组织中的含量差异进行研究,探讨重金属在鹭卵及白鹭雏鸟中的分布规律及积累趋势 ...
王晓彦
core +2 more sources
湿地鸟类不仅是鸟类的重要组成部分,也是湿地环境质量变化的重要指示物种。根据陕西安康瀛湖湿地保护区湿地生境状况,将研究区划分为河流湿地、水库湿地、沼泽和草甸湿地3种类型,于2016年9月—2019年8月,采用样线法与样点法对瀛湖湿地保护区水鸟群落特征和多样性进行调查,共记录到湿地水鸟68种,隶属8目17科,其中,旅鸟25种,冬候鸟20种,夏候鸟13种,留鸟9种,迷鸟1种;国家一级保护水鸟2种,国家二级保护水鸟5种,省级重点保护水鸟12种,“三有”水鸟43种;广性分布水鸟11种,中性分布水鸟23种 ...
龚晓松郭全忠
doaj
2016年9月—2019年3月,采用样点法在水鸟的南迁期(8—10月)、越冬期(11月—次年1月)、北迁期(2—3月)对云南省泸沽湖省级自然保护区迁徙水鸟进行监测。共记录水鸟7目10科38种,其中有国家二级重点保护野生鸟类3种、云南省省级重点保护野生鸟类1种。研究期内,保护区内越冬水鸟优势种累计记录10种,分别为赤麻鸭(Tadorna ferruginea)、绿头鸭(Anas platyrhynchos)、赤颈鸭(Mareca penelope)、罗纹鸭(M.falcata)、赤膀鸭(M ...
贺佳飞 1 肖剑平 2 曹明 1 向青松 3 李连翔 4 李旭 2
doaj
本论文对于陈川兴《泪纹与刀痕》的抒情书写进行相关的研究,主要研究是通过新批评“细读法”和历史社会批评法的方式,来针对陈川兴在诗作上所运用的抒情书写了解其背后的情感以及意义。本论文的研究架构主要分成五个章节,将会以主题思想、意象和表现手法为切入点,体现出陈川兴是如何去展现华裔在马来西亚的抒情,也尝试多方面角度去探讨他的诗作,这也是本论文的主要目的。 第一章绪论,阐述研究对象、研究方法、相关前人研究以及研究目的。其中强调了对于“抒情”的界定;第二章则专注于讨论陈川兴在诗作中所运用的人物意象 ...
Tan, Kim Yu, 陈, 钧幼
core
剑湖是云贵高原重要的水鸟越冬地,掌握其冬季水鸟群落特征对水鸟保护以及湿地资源管理具有重要指导意义。于2017年和2018年冬季采用样点法对剑湖进行了水鸟多样性调查。共记录到水鸟6目9科36种,种类组成上以雁形目鸭科鸟类为主(16种),但数量上以秧鸡科骨顶鸡(36.53%)和紫水鸡(17.09%)为优势。根据物种丰富度非参数估计,剑湖水鸟丰富度为42.80 ± 0.86。从居留类型上来看,剑湖水鸟以冬候鸟为主,占总记录种数的72.22%。对比两冬季数据发现剑湖水鸟多样性存在显著的年际变化 ...
杨文军 1 刘强 2, 3, 田昆 2, 3
doaj

