Antipredatory call behavior of lapwing species in an Afrotropical environment  

作　　者：Fatima R.James Chioma I.Okafor Samuel T.Osinubi Shiiwua A.Manu Samuel Ivande Taiwo C.Omotoriogun 

机构地区：[1]A.p.leventis ornithological research institute,university of jos,p.o.box 13404,jos,plateau state,nigeria [2]eden creation care initiative rennajj fish farm,p.o.box 7173,jos,plateau state,nigeria [3]fitzpatrick institute of african ornithology,university of cape town,cape town,south africa [4]department of zoology,university of jos,jos,plateau state,nigeria [5]biotechnology unit,department of biological sciences,elizade university,p.m.2.002,ilara-mokin,ondo state,nigeria [6]natural history museum,university of oslo,p.o.box 1172 blindern,0318 oslo,norway

出　　处：《Avian Research》2023年第4期630-639,共10页鸟类学研究（英文版）

基　　金：funding(No.217)from the A.P.Leventis Foundation Scholarship(to F.R.J).

摘　　要：Predation is an important source of natural selection on prey species and has resulted in adaptations such as antipredator vocal signals,which can alert others to the presence of predators and solicit cooperative attack.Although vocal alarm signals of birds have been well studied,they are poorly known in tropical African species.To address this lack of information,the antipredatory signals and responses of two lapwings(Wattled Lapwing Vanellus senegallus and Spur-winged Lapwing Vanellus spinosus)to potential predators were investigated using data collected from focal observation,distance measurements,focal recordings,and playback experiment.The lapwing calls elicited to predators were classified as alarm or mobbing calls based on whether the calls elicited alert behavior or attack from other lapwings.Discriminant linear analysis(DLA)was used to compare the time and frequency parameters of the call types measured in Raven PRO.Also,lapwings’responses to intruders,alert and start distance,time of day,and latency,as well as the effects of flock size and distance to cover were examined.About 48%of all calls was correctly classified by DLA.The best predictors of call type for the lapwings were maximum frequency and high frequency.Both alarm and mobbing calls were elicited by African Wattled Lapwings to dogs and humans.Mobbing calls were elicited to intruders by the Spur-winged Lapwings.Alert distance was positively associated with start distance,and differed between morning and evening in both lapwings.With scarce information from tropical Africa,this study put in perspective vocal and antipredator behavior of lapwing species in Africa.

关 键 词：Acoustic Alarm calls Lapwings Mobbing calls Vocal signals 

分 类 号：Q958[生物学—动物学]