Next to habitatloss, these invasive species represent the greatest threat to biodiversity worldwide, many ecologists say.
许多生态学家说,这些入侵物种仅次于栖息地的丧失,是对全球生物多样性的最大威胁。
2
The numerical effect is obvious: there are fewer salmon in degraded regions than in pristine ones; however, habitatloss also has the potential to reduce genetic diversity.
数值效应是明显的:退化地区的鲑鱼数量比原始地区少;然而,栖息地的丧失也有可能减少遗传多样性。
3
Poaching is the greatest threat, followed by habitatloss.