Phenology and Ethology of Adult Lasiopogon slossonae Cole and Wilcox Robber Flies (Diptera: Asilidae) in a New York Riparian Habitat
Phenology and Ethology of Adult Lasiopogon slossonae Cole and Wilcox Robber Flies (Diptera: Asilidae) in a New York Riparian Habitat
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纽约河岸栖息地成虫 Lasiopogon slossonae Cole 和 Wilcox Robber Flies（双翅目：Asilidae）的物候学和行为学
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发表时间：
2019
影响因子：
0.6
通讯作者：
K. McKnight
中科院分区：
文献类型：
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作者：
Kimberly A. Haab;Tristan A. McKnight;K. McKnight
抽象的。通过捕捉-标记-再捕捉程序，对纽约州普莱西德湖附近阿迪朗达克山脉沿线 1 公里的河滨地区，对盗蝇 Lasiopogon slossonae Cole 和 Wilcox 成虫的季节丰度、日常活动和行为进行了评估。 2015 年季节期间，共有 240 个人在该地点被标记；其中 73 颗至少被重新观测了一次。 2015年该种群的总体出现窗口期为47天，观察到的个体最长寿命为23天；其他三年的成虫季节性物候期也根据存在/不存在观察进行总结。 2015年，成虫性别比例略有偏向男性（58%），但在活动范围大小或栖息地与水的距离方面，性别之间没有显着差异。随着整体丰度的增加，苍蝇更加紧密地聚集在微生境斑块中，并且个体对相对较小的活动范围表现出一定的忠诚度（标记个体的活动面积中位数为 20 平方米）。然而，更长的扩散也很少发生——我们观察到的最远移动距离是 9 天内 726 m。人们从早上到晚上（通常是 10:00 到 18:00）都很活跃，每天的活动时间似乎取决于光强度和温度。猎物主要由蝉科组成，但也包括拟蝉科、花蝉科和叶蝉科。观察到雄性和雌性在不同的日子与多个伴侣交配。
Abstract. Seasonal abundance, daily activity, and behavior of adults of the robber fly Lasiopogon slossonae Cole and Wilcox were assessed with a capture-mark-recapture procedure for a population along 1 km of riverside in the Adirondack Mountains near Lake Placid, New York. Over the 2015 season, a total of 240 individuals were uniquely marked at this site; 73 were re-sighted at least one more time. The overall emergence window for this population in 2015 spanned 47 days with a maximum individual lifespan observed of 23 days; adult seasonal phenology periods for three other years are also summarized from presence/absence observations. In 2015, the adult sex ratio was slightly male-skewed (58%), but there was no significant difference between the sexes in home range size or perch distance from water. Flies packed more tightly into microhabitat patches as the overall abundance increased, and individuals showed some fidelity to relatively small home ranges (the median area of activity for marked individuals was 20 m2). However, longer dispersal also occurred rarely—the farthest movement we observed was 726 m over nine days. Individuals were active from morning to evening (usually 10:00 to 18:00) with a daily activity period that appeared to depend on both light intensity and temperature. Prey consisted mostly of Empididae, but also included Simuliidae, Anthomyiidae, and Cicadellidae. Both males and females were observed mating with multiple partners on different days.