Locusts
Locusts
复制标题
蝗虫
DOI：
10.1016/j.cub.2008.02.029
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发表时间：
2008
期刊：
影响因子：
9.2
通讯作者：
G. Sword
中科院分区：
文献类型：
--
作者：
S. Simpson;G. Sword
什么是蝗虫？一种特殊类型的蚱蜢（直翅目：蝗科），其特点是表现出一种显著的和潜在的破坏性的表型可塑性形式，称为密度依赖阶段多表型。当地人口密度的变化导致了显著不同的表型形式或“阶段”的发展（图1）。低种群密度产生害羞、伪装良好的“孤独”阶段，而拥挤的环境产生聚集、迁徙的“群居”阶段。独居期的蝗虫彼此躲避，但群居期的蝗虫可以形成庞大的群体，开始壮观的大规模迁徙，它们像行进乐队一样行进，像不会飞的幼虫一样行进，像有翼的成虫一样飞行。
What is a locust? A special type of grasshopper (Orthoptera: Acrididae) distinguished by expression of a remarkable and potentially devastating form of phenotypic plasticity, known as density-dependent phase polyphenism. Changes in local population density cause the development of strikingly different phenotypic forms, or'phases’(Figure 1). Low population densities produce the shy, well-camouflaged ‘solitarious’ phase, whereas crowded conditions produce the aggregating, migratory ‘gregarious’ phase. Solitarious phase locusts avoid one another, but gregarious locusts can form huge groups and embark on spectacular mass migrations, travelling as marching bands of flightless juveniles and vast flying swarms of winged adults.