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首页> 外文期刊>Northwestern Naturalist: a journal of vertebrate biology >DIURNAL ACTIVITY PATTERN OF A PAIR OF BREEDING NORTHERN PYGMY-OWLS
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DIURNAL ACTIVITY PATTERN OF A PAIR OF BREEDING NORTHERN PYGMY-OWLS

机译：一对育种北部侏儒的昼夜活动模式

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摘要

In 2012, we explored the activity pattern of a pair of breeding Northern Pygmy-Owls based on 15 d (and 15 nights) of video monitoring of the nest-cavity entrance during the nestling period. Video monitoring ended after all 6 owlets had left the nest. All instances of nest activity (n = 288) occurred during the daylight period from 1 h before sunrise to 1 h after sunset, so the pair was not nocturnal. Most of the activity (60%) occurred during the diurnal period (1 h after sunrise to 1 h before sunset), and the rest was in the crepuscular period (the first and last 2 h of daylight). Prey type factored heavily into the frequency of activity at certain times of day, and on certain days during the nestling period. Activity during the diurnal period was dominated by the combination of vertebrate prey deliveries (80% of diurnal activity) and enticements of young from the nest (14% of diurnal activity). In contrast, activity during the crepuscular period was dominated by insect prey deliveries (60% of crepuscular activity). Overnight nest attendance activity, arriving and departing the nest to tend young through the night, accounted for 11% of crepuscular activity. For the entire 15-d monitoring period, deliveries of vertebrate prey made up 60% of all activity. The frequency of daily vertebrate prey deliveries was relatively similar for the first 10 full days of monitoring (range 9 to 13 deliveries), then peaked 3 to 4 d prior to fledging (range 15 to 20 deliveries) before declining on the last 2 d of the period, when deliveries of moths and enticement activity increased. We concluded that the pair's activity during the nestling period was consistent with a diurnal activity pattern. We encourage other researchers to refine the meanings of the terms diurnal and crepuscular and clarify how those terms should be used to define the primary activity pattern of a species.
机译：2012年，我们探讨了在雏鸟期间的巢穴入口的15 d（和15晚）基于15 d（和15晚）的一对繁殖北部侏儒-ovls的活动模式。所有6个蜂窝留下巢后，视频监控结束。在日出前1小时的日光期间发生在日落前的日光期间发生所有巢活动（n = 288），因此这对该对不是夜间。大多数活动（60％）发生在日期期间（日出后1小时至日落前1小时），其余的是在蠕虫期（日光的第一个和最后2小时）。猎物类型在一定时期的一定时间和某些日期内划入了一定数量的活动频率。昼夜时期的活动是由脊椎动物猎物（昼夜活动的80％）和巢穴的诱饵（巢活动的14％）的组合主导。相反，蠕虫期间的活性由昆虫猎物交付（60％的蠕虫活性）主导。过夜巢考勤活动，到达和离开巢往往夜晚倾向于年轻，占摇熟活动的11％。对于整个15-D监测期，脊椎动物猎物的交付量占所有活动的60％。每日脊椎动物猎物交付的频率对于监测的前10天（范围为9至13个交付），然后在最后2 d的最后2 d下降之前达到3至4 d达到3至4 d.当时的飞蛾和诱惑活动的时期增加。我们得出结论，这对雏鸟期间的活动与日昼夜活动模式一致。我们鼓励其他研究人员改进差饷季度和蠕虫的含义，并阐明这些术语应该如何定义物种的主要活动模式。

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