Results 31 to 40 of about 740 (146)

针尾沙锥迁徙中的生态习性

open access: yes野生动物学报, 1999
针尾沙锥(Gallinago stenura)俗称麦鸡,在西藏北部、黄河上游及黑龙江流域繁殖,冬季留居广东、福建和台湾等省.在迁往繁殖地途中,常于抚州地区临川市一带停留.笔者于19961997年对针尾沙锥迁徙中的生态习性进行了观察.
周亚平, 包水明
doaj   +2 more sources

“候鸟”不宜作为法律概念

open access: yes野生动物学报, 2017
候鸟和具有迁徙特征鸟类是两个不同的概念,候鸟是具有迁徙特征鸟类的一种。法律概念应该科学地拟制。将“候鸟”作为法律概念,易引起误解。目前,环境法学者们没有完全理解迁移的含义,以致译文不符合动物学用语习惯。目前,我国立法中还没有具有迁徙特征鸟类的概念。为了制定更为有效的法律保护措施,法学界应积极学习动物学理论,并在立法中弥补这一空白。
张栋琦
doaj   +1 more source

候鸟在大黑山岛迁徙的“减员”

open access: yes野生动物学报, 1990
长岛鸟类自然保护区有32个岛屿,面积为53.17平方公里。居山东与辽东半岛之间的渤海海峡。是我国东部候鸟迁飞线上重要的一“站”。笔者以大黑山岛为基点,经过40多年的观察,途经这里的候鸟约占全区总量的三分之一。其迁徙特点是:猛禽,白昼迁飞,夜晚栖落;雀形目鸟,夜晚迁飞,白昼栖落于岛上。
刘文权
doaj   +2 more sources

防止迁徙鸟与飞机冲撞事故及自然保护

open access: yes野生动物学报, 1989
以色列讨论了一个自然保护和防止飞机事故的独特的计划,这是由空军、大学和民间团体一起参加的。中东的上空虽然是硝烟弥漫,军事纷争的舞台,而这一带却又是最主要的鸟类迁徙的路线,每年有40万只鹤和一百多万只猛禽类于春秋二季在以色列的上空南北向的迁飞。此外,还有各种鸟从欧洲或亚洲和非洲之间往返通过。为什么这里成为大型迁徒鸟路线的集中地呢?那是因为这一带有丘陵和山谷,受到太阳热的强烈照射而产生上升气流,大型鸟可利用上升气流不搧动其翼,仅象滑翔机那样进行长距离移动,这是大型鸟类迁徙时节约能量的通常飞翔方法 ...
钱伟娟
doaj   +2 more sources

首都国际机场地区夜鹭迁徙动态和繁殖生态初步研究

open access: yes野生动物学报, 2009
2008年2~10月,开始对迁入北京国际机场地区的夜鹭迁徙动态和繁殖生态进行观察研究。基本弄清本地区夜鹭迁入和迁出及繁殖规律。在夜鹭繁殖生态研究中,我们选择16个繁殖种群,并对276窝夜鹭的繁殖生态习性进行定点、定时的观察研究,尽力找出夜鹭在夜间活动对夜行飞机的影响,为飞机的避让及机场鸟击防灾综合治理工作提供科学依据。
施泽荣, 赵英敏
doaj   +2 more sources

FANN AL-QAUL BY AMIN AL-KHOULI AND ITS CONNECTION TO STYLISTIC STUDY / ┘ü┘å Ϻ┘ä┘é┘ê┘ä ┘äÏú┘à┘è┘å Ϻ┘äÏ«┘ê┘ä┘è ┘êÏ╣┘äϺ┘éϬ┘ç ϿϺ┘äÏúÏ│┘ä┘êÏ¿┘èÏ®

open access: yesLughawiyah: Journal of Arabic Education and Linguistics, 2022
Amin al-Khouli is the pioneer of Balaghah renewal in modern era. Balaghah renewal that is called Fann al-Qaul (Art of Speaking) appeared in a period close to the appearance period of stylistic study in Europe. The purpose of this research is to reveal the connection between Amin al-KhouliÔÇÖs ideas about Balaghah renewal in his book Fann al-Qaul and ...
openaire   +1 more source

Exploring the risks and benefits of flexibility in biodiversity offset location in a case study of migratory shorebirds

open access: yesConservation Biology, Volume 37, Issue 2, April 2023., 2023
Abstract Biodiversity offsets aim to counterbalance the residual impacts of development on species and ecosystems. Guidance documents explicitly recommend that biodiversity offset actions be located close to the location of impact because of higher potential for similar ecological conditions, but allowing greater spatial flexibility has been proposed ...
Nicole Shumway   +9 more
wiley   +1 more source

ϬÏúϽ┘èÏ▒ Ϻ┘äÏÀÏ▒┘è┘éÏ® Ϻ┘ä┘àÏ▓Ï»┘êϼϮ Ï╣┘ä┘ë ┘à┘çϺÏ▒Ï® Ϻ┘ä┘éÏ▒ϺÏíÏ® ┘ü┘ë ┘àÏ╣┘çÏ» Ϻ┘äϺÏ│Ϭ┘éϺ┘àÏ® Ϻ┘ä┘àϬ┘âϺ┘à┘äÏ® Ϻ┘äÏÑÏ│┘äϺ┘à┘èÏ® Ï¿Ï│┘è┘àϺ┘êϺ┘åϼ Ïú┘ê┘àÏ¿┘è┘ä┘è┘å

open access: yesLughawiyah: Journal of Arabic Education and Linguistics, 2019
Ϻ┘ä┘àÏ┤┘â┘äÏ® Ϻ┘äÏúÏ│ϺÏ│┘èÏ® ┘ä┘çÏ░Ϻ Ϻ┘äϿϡϽ ┘ç┘è ┘ç┘ä ┘è┘êϼϻ ϬÏúϽ┘èÏ▒ Ϻ┘äÏÀÏ▒┘è┘éÏ® Ϻ┘ä┘àÏ▓Ï»┘êϼϮ Ï╣┘ä┘ë ┘à┘çϺÏ▒Ï® Ϻ┘ä┘éÏ▒ϺÏíÏ® Ï╣┘åÏ» Ϻ┘äϬ┘äϺ┘à┘èÏ░ ┘ü┘è ┘àÏ╣┘çÏ» Ϻ┘äϺÏ│Ϭ┘éϺ┘àÏ® Ϻ┘ä┘àϬ┘âϺ┘à┘äÏ® Ϻ┘äÏÑÏ│┘äϺ┘à┘èÏ® Ï¿Ï│┘è┘àϺ┘êϺ┘åϼ Ïú┘ê┘àÏ¿┘è┘ä┘è┘å.
Septika Rudiamon   +2 more
openaire   +2 more sources

Evaluating the use of taxonomy in the IUCN Red List

open access: yesConservation Biology, EarlyView.
Abstract Taxonomy defines the units that conservationists strive to preserve for future generations. However, the discovery of new species and the taxonomic revision of existing species affect conservation efforts. Despite the importance of taxonomy for a species’ conservation, there is currently no overview of how those leading species extinction risk
Stephen T. Garnett   +8 more
wiley   +1 more source

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