Effects of recreational disturbance on the foraging behaviour of waders on a rocky beach

被引:59
作者
Fitzpatrick, S [1 ]
Bouchez, B
机构
[1] Univ Ulster, Sch Appl Biol & Chem Sci, Newtownabbey BT37 0QB, Antrim, North Ireland
[2] Univ Paris 07, Inst Univ Profess Genie & Gest Environm, F-75005 Paris, France
关键词
D O I
10.1080/00063659809461088
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Oystercatcher Haematopus ostralegus, Curlew Numenius arquata and Redshank Tringa tetanus reacted in a variety of ways to human disturbance. They delayed arrival and departed earlier when disturbed. Vigilance (scan rates) increased with the vigour of human activity and the birds were more vigilant in the higher shove zones, but there tons no corresponding decrease in food searching (peck rates). Prey capture rates of Oystercatcher and Curlew apparently increased with moderately close human disturbance. Undisturbed birds may not have been foraging at maximum rates and vested periodically during the low tide period. Characteristic avoidance behaviour elicited by disturbance differed between the species; Curlew and Redshank typically stopped feeding and, if they left, flew away, whereas Oystercatcher walked away. This difference may be related to plumage crypsis. Flight distances of all species were very low. Habituation may be an important response to regular but benign disturbance, reducing the disturbance-induced decrease in feeding time to a level which may be compensated for, at least in summer within the normal late-tide foraging period.
引用
收藏
页码:157 / 171
页数:15
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