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首页> 外文期刊>Wildlife Biology >Capercaillie Tetrao urogallus lek formation in young forest.
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Capercaillie Tetrao urogallus lek formation in young forest.

机译：Capercaillie Tetrao urogallus韭菜形成在年轻的森林里。

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Capercaillie Tetrao urogallus leks have repeatedly been reported to be located in old forest. However, two conditions may have biased this widely held view. First, leks are known to be continuously used over several decades, and therefore might have been established when forest stands were younger. Second, stand-replacement logging (clearcutting) was not widely applied until the 1950s, leaving even-aged regenerating stands too young for leks to have been established in the latter part of the 20th century. Here we report eight cases of lek formation in young plantations from south-central Norway. Stand age ranged within 26-46 years when display activity started. At six of the sites, we confirmed that females were regularly feeding on pine trees in winter prior to lek establishment, and at four of these sites displaying males were observed courting the females in late winter. These findings support the hotspot model of lek formation put forward by Gjerde et al. (2000), and it offers promising options for managing capercaillie leks in commercially utilised forests.
机译：Capercaillie Tetrao urogallus韭菜多次被报道位于老森林中。但是，有两个条件可能会使这种普遍持有的观点产生偏差。首先，已知韭菜可以在几十年内连续使用，因此可能是在林分年轻的时候就建立了。其次，直到1950年代才开始广泛使用林分替换测井（砍伐），使得年龄均匀的再生林还太幼小，以至于20世纪后期都无法建立韭葱。在这里，我们报告了八例挪威中南部年轻人工林的韭菜形成病例。展示活动开始时的展位年龄在26-46年之间。在六个地点，我们确认雌性在建立韭葱之前的冬天定期在松树上觅食，并且在其中四个地点中，显示出雄性在冬季晚些时候向雌性求爱。这些发现支持了Gjerde等人提出的韭菜形成的热点模型。 （2000年），它为在商业化利用的森林中管理雀er沥水提供了有希望的选择。

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