The situation is complicated by the “Noah’s Ark” effect: while a small total area can house many species, it may not be able to ensure their long-term sustainability. In other words, even if the aggregate size of all protected areas is large, the individual areas may not be large enough to support viable populations.
“诺亚方舟”效应使得局面变得更为复杂：尽管一小片面积可以容纳很多物种，但却可能无法满足这些物种长期繁衍的需求。换句话讲，即使保护区的总面积够大，但具体到某一片区域可能不足以支持种群的存活。