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[ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ ).GV7'u)FygxH%-WFroG] ²ÔÓ¬Ò²ÓÐ×Ô¼ºµÄ¡°Áì¿Õ¡±Âð£¿[ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ msj=)J9qNcz'fGdFroG] [ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ {TPT5S-Gl1|&z(FroG] ×ÔÈ»½çÖУ¬ºÜ¶à¶¯ÎïÓÐ×Ô¼ºµÄ¡°ÁìÍÁ·¶Î§¡±£¬ËüÃdz£³£ÒÔijÖÖÌØÊâÎïÖÊ¡°È¦µØ¡±£¬²¢»áÒòΪ¡°ÁìÍÁÖ®Õù¡±´òµÃ²»¿É¿ª½»¡£ÄÇô£¬µ½´¦ÂҷɵIJÔÓ¬Ò²ÓÐ×Ô¼ºµÄ¡°Áì¿Õ¡±Âð£¿[ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ 1SNv (]@e}7;sx|vLr~FroG] It depends on the species, but some flies are very territorial, said Louis N. Sorkin, an entomologist at the[ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ 4O !AJzJR/BDE€@NFroG] Several fly species have landmark-based territoriality, especially for their mating swarms, and may return to the same tree by a lake year after year. Male Cuterebra(ÂíÓ¬) flies, also called botflies, form mating groups on hilltops, waiting for interested females, a ritual called hilltopping. In some species there is lively competition among males to take and hold a prime site.[ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ ZOqaWb 6fe%FroG] In one study, scientists observed male flies of the Leschenaultia adusta species on small trees and shrubs on the highest parts of a peak in Arizona, flying in and out from time to time. Typically, only one individual stayed on a given plant for more than an hour, apparently holding the fort. These site-faithful males constituted about a quarter of the group; more than half of them also returned to the same perch for two or more days. They sometimes engaged in elaborate chase sequences.[ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ nS'cE@d9PAeHyFroG] [ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ y~D00LWox*6j Zd,FroG] |
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