¿¼ÊÔ,ÆÀ¼Û
´òÓ¡±¾ÎÄ ¹Ø±Õ´°¿Ú |
|
| ²ÔÓ¬Ò²ÓÐ×Ô¼ºµÄ¡°Áì¿Õ¡±Â𣿠| |
| ×÷Õߣºmaisie ÎÄÕÂÀ´Ô´£º±¾Õ¾Ô´´ µã»÷Êý ¸üÐÂʱ¼ä£º2009-12-14 9:32:43 ÎÄÕ¼È룺maisie ÔðÈα༣ºmaisie | |
|
|
|
|
[ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ o^}G;YBm_!D2_qPFroG] ²ÔÓ¬Ò²ÓÐ×Ô¼ºµÄ¡°Áì¿Õ¡±Âð£¿[ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ Ow)LSj [c'$M hie\FroG] [ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ ~UU7C/R/?[~:-FroG] ×ÔÈ»½çÖУ¬ºÜ¶à¶¯ÎïÓÐ×Ô¼ºµÄ¡°ÁìÍÁ·¶Î§¡±£¬ËüÃdz£³£ÒÔijÖÖÌØÊâÎïÖÊ¡°È¦µØ¡±£¬²¢»áÒòΪ¡°ÁìÍÁÖ®Õù¡±´òµÃ²»¿É¿ª½»¡£ÄÇô£¬µ½´¦ÂҷɵIJÔÓ¬Ò²ÓÐ×Ô¼ºµÄ¡°Áì¿Õ¡±Âð£¿[ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ WEJM~nPjTP)|%sa$lFroG] 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/ :[p.|3e08h}gbU€RFroG] 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/ ?IUbIVb 4€4KW0FroG] 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/ pC2'NN7rY bVSI=FroG] [ÎÄÕ°æÈ¨ ½ûÖ¹×ªÔØ:¿¼ÊÔÓëÆÀ¼Û http://www.trgroup.com.cn/te/ E}7d7J"Bd~-?E8+f!FroG] |
|
´òÓ¡±¾ÎÄ ¹Ø±Õ´°¿Ú |