Corridor Project Data, Butterfly Movement in Habitat Patches, Savannah River Site, SC USA, 2000-2001

The objective of this dataset was to identify butterfly dispersal patterns in fragmented habitats and those connected by corridors. The data was collected in eight experimental landscape blocks that consist of five open habitat patches surrounded by a mature pine plantation matrix. There is one central patch surrounded by four peripheral patches. One peripheral patch is connected to the central patch by a corridor; the unconnected peripheral patches have either a rectangular or winged shape. Two butterfly species, Junonia coenia (common buckeye) and Euptoieta claudia (variegated fritillary), were marked and recaptured in the patches to analyze population densities and movement.

本数据集旨在探明破碎化生境（fragmented habitats）以及由廊道（corridor）连接的生境中的蝴蝶扩散模式。数据采集于8个实验景观区块（experimental landscape blocks），每个区块由5块开阔生境斑块（habitat patches）组成，外围被成熟松类人工林基质（mature pine plantation matrix）环绕。区块内包含1块核心斑块，四周环绕4块外围斑块。其中1块外围斑块通过廊道与核心斑块相连，其余未连通的外围斑块则呈矩形或翼状形态。研究人员对两种蝴蝶——Junonia coenia（普通七叶树蛱蝶，common buckeye）与Euptoieta claudia（杂色豹蛱蝶，variegated fritillary）——在各斑块内开展标记重捕实验，以分析其种群密度与移动规律。