Evidence points to hunting by humans and habitat destruction as the likely causes for the current mass extinction.
有证据表明，人类的捕猎和栖息地的破坏可能是导致当前物种大量灭绝的原因。
We saw how important habitat selection is when we look at habitats where some of these factors are removed, perhaps through habitat destruction.
这些因素可能通过栖息地的破坏而消失，而当我们观察那些没有了这些因素的栖息地，可以看到栖息地选择的重要性。
Countless species have disappeared due to over-hunting, habitat destruction and habitat fragmentation, pollution and other unnatural human causes.
由于过度捕猎、栖息地破坏和破碎化、污染和其他非自然的人为原因，无数物种已经消失。
The mamba is mainly threatened by habitat destruction.
黑曼巴主要地被生境破坏威胁。
Habitat destruction remains the primary threat to the bamboo-eating bears.
对这种食竹的熊类来说，栖息地的丧失仍然是最大的威胁。
Poaching and habitat destruction threaten African elephants throughout their range.
偷猎和栖息地被破坏威胁着非洲象的生活范围。
The habitat destruction has contributed to a plunging animal population throughout the region.
在整个区域内，野生动物栖息地的破坏已经成为动物数量大幅度缩减的元凶。
So we keep putting them into zoos to protect them from poachers, as well as from habitat destruction.
所以我们会把它们放到动物园中保护它们不受偷猎者以及栖息地破坏的侵害。
This critically endangered species has suffered from overfishing, dam building, and habitat destruction.
这种濒危物种苦于过度捕捞，修筑水坝和栖息地锐减。
Salmon once thrived here, but over the years DAMS, overfishing and habitat destruction have diminished their number.
三文鱼曾在这里大量繁殖，但由于多年的围坝、过度捕捞和生态环境的破坏，导致其数量减少。
Migrating birds face many threats, chief among them habitat destruction: the loss of necessary places to feed and rest.
候鸟面临着许多威胁，其中主要的是栖息地遭受破坏，这使它们失去了觅食和栖息之地。
Excessive cultivation, chemical use and habitat destruction eventually destroy the very organisms that could be our partners.
过度的耕作、化学品的使用和栖息地的破坏，最终会破坏原本能成为我们的合作伙伴的有机体。
It's an alarming scenario, and it has tropical biologists wondering which battle to fight first: habitat destruction or global warming.
这是一个让人担忧的景象，使得热带的生物学家不知道应该先打哪一场仗：生存地破坏还是全球变暖？
Habitat destruction is particularly pressing for this species of spider, as scientists estimate less than 500 of them remain in the wild.
对这种蜘蛛，特别强调其栖息地遭受毁坏，是因为科学家预计这种野生蜘蛛不足500只。
The real extinction problem, he says, is human population pressure: habitat destruction, pesticide abuse, overharvesting, and species invasion.
他说，真正的灭绝问题是人类的人口压力：居住地的破坏、滥用杀虫剂、过度捕杀、物种入侵等。
In the wild, these monkeys are found in Central and South America, but are threatened due to habitat destruction, hunting and live capture for pets.
在野外，这些猴子见于中南美洲，但因栖息地破坏、捕猎和活捉作宠物，已经濒危。
Threatened status would give the devils protection from other perils, such as habitat destruction caused by water pollution or land development.
这一举措将使袋獾受到人们的保护，从而免受其它危险因素(如因为水质污染或土地开发而使其栖息地遭到破坏等)的干扰。
Pollinators are threatened by pesticides, invasive species, and habitat destruction, but they are especially threatened by a lack of awareness about their importance.
传粉者受到杀虫剂、外来物种、和栖息地的破坏，他们会受到威胁，但由于缺乏关注而忽略了它们的重要性。
With an area of 25 hectares - the size of 50 football fields - going up in smoke every minute, it's clear that wildlife there is massively at risk from habitat destruction.
每分钟都有25公顷的森林-相当于50个足球场的面积-化为乌有，显然那里的野生动物正处于生存环境受到破坏的极度危险之中。
Three-quarters of all the world's plant genetic material may have gone already, mostly by habitat destruction, says Pasquale Steduto of the FAO, and more is going every day.
世界上植物遗传物质的四分之三已经灭绝，大部分是因为栖息地破坏，粮农组织的帕斯夸莱说，而且每天有更多的正在消失。
The speeds of habitat destruction and species extinction reach the climax during the past 200 years because of rapid human population growth and advances in technology.
在过去的200年里，生境毁坏和物种灭绝的速度已经达到了史上最大。
Instead, habitat destruction has continued unabated, and some experts now warn that the planet faces its sixth mass extinction phase — the latest since dinosaurs vanished 65 million years ago.
相反，栖息地的破坏继续有增无减，一些专家警告说，地球现正面临其第六次大灭绝阶段-自6500万年前恐龙消失最新的一次。
Instead, habitat destruction has continued unabated, and some experts now warn that the planet faces its sixth mass extinction phase — the latest since dinosaurs vanished 65 million years ago.
相反，栖息地的破坏继续有增无减，一些专家警告说，地球现正面临其第六次大灭绝阶段-自6500万年前恐龙消失最新的一次。
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