Breeding biology of a kentish plover (charadrius alexandrin us) population in an inland saline lake
Breeding biology of a kentish plover (charadrius alexandrin us) population in an inland saline lake
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发表时间：
1996
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通讯作者：
R. Fraga;J. Amat
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文献类型：
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作者：
R. Fraga;J. Amat
美洲斑潜蝇种群的繁育生物学研究我们买了这匹马。Bioloev oi Kentish plers(Clnrodrius ale.~ondrusl in Fuente de Piedra Lake(西班牙南部))和G92。繁殖者在颧骨长度和体质量上表现出性别二型性：整个繁殖季节只有雄性体重下降。产卵日期1991年为88天，1992年为110天。在产卵季节后期沉积的卵比产卵季节开始时大。雌性在白天孵化，雄性在夜间孵化。1-2枚卵的表观孵化主要发生在筑巢季节，反映了部分捕食的高发生率(在2882枚2-3枚卵中记录了17%)。在整个繁殖季节，巢的捕食量增加，只有19%的AL1窝产下了小鸡。为每个巢址测量的变量(巢盖、水面距离和最近的邻居)不会影响巢的捕食。通常在失去前一个离合器的11-24天后，LOS1离合器的肯特鸟对重新组合在一起。雌鸟的体质量在第一次和随后的替换巢之间是相似的。双亲照顾幼鸟的时间比肯特郡几个较老的种群持续更长时间。当雏鸟出生15-20日龄时，其中一只成鸟--通常是雌猴--对雏鸟进行降温。海鸥嘴燕鸥(Gelochelidon Niloticn)捕食16天大的雏鸟。第00个性别表现出了反捕食者行为(警报呼叫、围攻)。有可能。与其他繁殖地点相比，Fuente de Piedra对海鸥幼鸟的母性保护更强，这是因为高捕食压力与捕食者类型之间的关系，因为成年犁手围攻海鸥对燕鸥具有有效的威慑作用。在逃离沉思之后。一些雌性与新的雄性交配(顺序多夫制)。在羽化较早或随后的筑巢尝试足够早的雄鸟中，记录了顺序的一夫多妻制。我们认为，L的持续时间、繁殖季节和高离胎率限制了顺序一夫多妻制在我们的流行中的频率。关键文献：繁殖生物学、亲本繁殖、交配系统、顺序性一夫多妻制。
Su~!.ln~v.-Breeding biology of o Kentish Plouer (Charadrius aleaandrinus) popubtion in on inlond roline loke. We siudicd the breedine. bioloev oi Kentish Plovers (Clnrodrius ale.~ondrinusl in Fuente de Piedra lake (southem Spain) in 1997 and G92. Breeders showed sexual dimorphism in tarsal length and body mas: body mass decreased throughout the breeding season only in males. Laying dates spanned 88 days in 1991 and 110 in 1992. Eggs deposited in the late nesting season were larger than those in the begining of the season. Females incubated during daylime and males during the night. Apparent clutches of 1-2 eggs occurred mostly lale in the nesting season and reflect a high incidence of partial predation (recorded in 17 % of 288 2-3 egg clutches). Nest predalion increased in the course of the breeding season, and only 19 % of al1 clutches produced chicks. Variables measured for each nest site (nest cover, distances lo water and <o nearest neighbour) did no8 inlluence nest predation. Kentish Plover pairs that los1 clutches usually renested together, on average 11-24 days after loss o i fheir previous clutch. The body masses of females were similar between firsl and subsequent replacement nestings. Biparental care of chicks lasted longer than in several olher populations of Kentish Plovers. When the chicks were 15-20 days old one of the adults, usually the iemale, desened the brood. Gull-billed Terns (Gelochelidon niloticn) preyed on chicks up lo 16 days ofage. 00th sexes showed antipredator behaviours (alarm calls, mobbing). Possibly. the greater maternal protection of the brood at Fuente de Piedra compared lo other breeding locations results from an interreiationship between high predation pressure and type of predaiors, since mobbing of Gull-billed Terns by adult plovers was ellective in deterring the terns. After deseriing broods. some females mated lo new males (sequential polyandry). Sequential polygyny was recorded in males that fledged chicks early enough lor a suhsequent nesting attempt. We propose that the duration o l the breeding season and high clutch iailure rates constrained the frequency of sequential polygamy in our populalion. Key ivords: breeding biology, brood desenion, Chadrius olexondrinrrs, parental m e , mating system, sequential polygamy.