THE EFFECTS OF SUPPLEMENTAL FEEDING ON WINTERING BLACK-CAPPED CHICKADEES (POECILE ATRICAPILLA) IN CENTRAL MAINE: POPULATION AND INDIVIDUAL RESPONSES
THE EFFECTS OF SUPPLEMENTAL FEEDING ON WINTERING BLACK-CAPPED CHICKADEES (POECILE ATRICAPILLA) IN CENTRAL MAINE: POPULATION AND INDIVIDUAL RESPONSES
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补充饲喂对缅因州中部越冬黑顶山雀 (POECILE ATRICAPILLA) 的影响：种群数量和个体反应
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
W. Wilson
中科院分区：
文献类型：
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作者：
W. Wilson
在缅因州中部的一个偏远地区，我建立了喂鸟器，里面装满了黑油向日葵籽，以补充越冬的黑顶山雀（Poecile atricapilla）的食物。山雀在两周内发现了10月下旬建立的实验饲养者; 1月中旬建立的饲养者被发现得更慢。每周一次的人口普查表明，山雀的丰度显着较高的饲养员的存在。标记-再捕获分析显示，多达110和70山雀使用馈线在两个最集中的研究地点超过2天的时间。环境温度没有影响率带山雀访问馈线。带状山雀的访问率较高，在第一个三分之一的冬季，也许竞争的馈线访问增加了越来越多的unbanded山雀使用馈线随着季节的进展。喂食器的使用频率显着不同的山雀在每个喂食点，这种变化不能解释的年龄的鸟（第一个冬天与成年鸟）。随着时间的推移，个体鸟类在喂食器使用方面的变化也很明显。
In a remote area of central Maine, I established bird feeders stocked with black oil sunflower seeds to supplement the food of wintering Black-capped Chickadees (Poecile atricapilla). The chickadees discovered experimental feeders established in late October within two weeks; feeders established in mid-January were discovered more slowly. Weekly censuses showed that chickadee abundance was significantly higher in the presence of the feeders. Mark-recapture analysis revealed that as many as 110 and 70 chickadees were using the feeders at the two most intensively studied sites over 2-day periods. Ambient temperature had no influence on the rate at which banded chickadees visited the feeders. The visitation rate of banded chickadees was higher during the first third of the winter; perhaps competition for feeder access increased as increasing numbers of unbanded chickadees used the feeders as the season progressed. The frequency of feeder use varied markedly among the chickadees at each feeding site; this variation could not be explained by age of the birds (first-winter versus adult birds). Variability in feeder use was also apparent for individual birds over time.