Time and Energy Budgets of the Mockingbird (Mimus polyglottos) during the Breeding Season
Time and Energy Budgets of the Mockingbird (Mimus polyglottos) during the Breeding Season
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知更鸟 (Mimus polyglottos) 在繁殖季节的时间和能量预算
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
Douglas W. Biedenweg
中科院分区：
文献类型：
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作者：
Douglas W. Biedenweg
--利用等效温度模型预测栖息代谢率，完成了雄性和雌性嘲鸫（Mimuspolyglottos）繁殖周期6个阶段的时间和能量收支。记录的时间预算行为包括栖息，双足运动，飞行，以及在阳光和阴凉处度过的时间。在整个研究期间，雄性和雌性的平均92.3%和92.8%的活动日栖息，2.4%和1.6%的双足运动，5.3%和5.6%的飞行，分别。基础代谢率加上季节性腹泻的平均需要量，男性为DEEtot的78.1%，女性为76.1%。选择荫蔽或暴露的微栖息地在能量消耗上几乎没有区别。DEEtot变化范围从96.9 kJ的男性与孵化的女性照顾的幼鸟的男性113.0 kJ，从75.1 kJ的孵化的女性照顾的幼鸟的女性113.2 kJ。未交配、筑巢前和孵化期的鸟类比照顾雏鸟（P · 0.05）或照顾雏鸟（P · 0.05）花费的能量显著减少。除了筑巢阶段（此时雌性正在产卵）和孵化阶段（此时雌性与巢穴隔离），雄性和雌性DEE·在整个季节都不会紧密地相互靠近。在研究地点发生的大量捕食表明，鸟类可能会分配时间栖息，以尽量减少捕食自己或后代的可能性。1982年2月26日收到，接受
--A time and energy budget of male and female Mockingbirds (Mimus polyglottos) in six phases of their breeding cycle was completed using the equivalent temperature model to predict perching metabolic rates. Recorded time-budget behaviors included perching, bipedal locomotion, flight, and the time spent in the sun and shade. Over the total study period, males and females spent an average of 92.3% and 92.8% of their active day perched, 2.4% and 1.6% in bipedal locomotion, and 5.3% and 5.6% in flight, respectively. BMR plus thermostatic requirements averaged, seasonally, 78.1% of DEEtot in males and 76.1% in females. The choice of shaded or exposed microhabitats made very little difference in energy expenditure. DEEtot varied from 96.9 kJ in males with incubating females to 113.0 kJ in males caring for fledglings, and from 75.1 kJ in incubating females to 113.2 kJ in females caring for fledglings. Unmated, pre-nest-building, and incubating birds spent significantly less energy than did birds caring for nestlings (P • 0.05) or birds caring for fledglings (P • 0.05). With the exception of the nest-building phase, when females are producing eggs, and the incubation phase, when females gain insulation from the nest, male and female DEE•ot closely paralleled each other throughout the season. The large amount of predation that occurred at the study site suggests that birds may allocate time to perching to minimize the probability of predation on themselves or their offspring. Received 26 February 1982, accepted