From a sequential pattern,temporal adjustments emerge in hummingbird traplining  

作　　者：Maria C.TELLO-RAMOS Andrew T.HURLY Susan D.HEALY 

机构地区：[1]School of Biology,University of St Andrews,Scotland,UK [2]Department of Biological Sciences,University of Lethbridge,Alberta,Canada

出　　处：《Integrative Zoology》2019年第2期182-192,共11页整合动物学（英文版）

摘　　要：Animals that feed from resources that are constant in space and that refill may benefit from repeating the order in which they visit locations.This is a behavior known as traplining,a spatial phenomenon.Hummingbirds,like other central-place foragers,use short traplines when moving between several rewarding sites.Here we investi­gated whether traplining hummingbirds also use relevant temporal information when choosing which flowers to visit.Wild rufous hummingbirds that were allowed to visit 3 artificial flower patches in which flowers were re­filled 20 min after they had been depleted repeated the order in which they visited the 3 patches.Although they tended to visit the first 2 patches sooner than 20 min,they visited the third patch at approximately 20-min inter­vals.The time between visits to the patches increased across the experiment,suggesting that the birds learned to wait longer before visiting a patch.The birds appeared to couple the sequential pattern of a trapline with tem­poral regularity,to some degree.This suggests that there is a temporal component to the repeated spatial move­ments flown by foraging wild hummingbirds.

关 键 词：foraging patterns interval timing rufous hummingbirds Selasphorus rufus 

分 类 号：O17[理学—数学]