Cipo Canasteros (Asthenes luizae, Furnariidae) have a fragmented and limited range restricted to the campos rupestres (rupestrian grasslands) habitat in the Brazilian highlands of the Espinhaço Range, and little is known about their behavior, ecology, and population biology. From March 2009 to November 2010, we monitored birds (24 banded and 22 radio‐tracked) at two study sites at Serra do Cipó in the state of Minas Gerais, Brazil, to estimate their home‐range sizes and population density, and describe their habitat use, natal dispersal behavior, and vocal behavior. We found an average density of 8.7 paired adults/km² in our study areas or 22.9 paired adults/km² when considering only used habitats. The sex ratio was male‐biased (males/total adults = 0.68), adults exhibited high site fidelity, home‐ranges averaged 4.0 ha (fixed kernel 95%) or 3.5 ha (95% minimum convex polygon) in size, and both sexes defended territories year‐round. We recorded four main types of songs, including two uttered more often during the breeding season. We monitored the natal dispersal of two males and one female who moved maximum distances of 1238 m, 780 m, and 1056 m, respectively, from natal areas. Our results confirm that Cipo Canasteros are restricted to the rocky‐outcrop habitat of the campos rupestres. In part due to their habitat specialization, Cipo Canasteros are considered Near Threatened, but other factors contributing to their demographic fragility include the small number, and probably low survival, of females and low reproductive success due to predation and brood parasitism by cowbirds. Given these threats, along with their specialized habitat and restricted range, the future conservation of Cipo Canasteros will likely depend on the extent to which their campos rupestres habitat can be conserved.

中文翻译：

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巴西东部高地的岩石专家流行的Cipo Canasteros（Asthenes luizae，Furnariidae）的居家范围，人口密度，发声行为和出雏后运动

Cipo Canasteros（Asthenes luizae，Furnariidae）的零散范围有限，仅限于Espinhaço山脉巴西高地的campos rupestres（鲁斯特草原）生境，对其行为，生态和种群生物学知之甚少。从2009年3月到2010年11月，我们在巴西米纳斯吉拉斯州Serra doCipó的两个研究地点监测了鸟类（24条带状带和22条无线电跟踪的），以估计其家禽大小和种群密度，并描述它们的数量。栖息地的使用，出生时的传播行为和声音行为。我们在研究区域发现平均密度为8.7个成对成年人/每平方千米，或22.9个成对成年人/每平方千米²仅考虑使用过的栖息地时。性别比为男性偏见（男性/成年总成年人= 0.68），成年人表现出较高的现场忠诚度，平均范围内的平均居家耕地面积为4.0公顷（固定核95％）或3.5公顷（最小凸多边形为95％），并且两性全年守卫领土。我们记录了四种主要的歌曲类型，其中有两种在繁殖季节发声的频率更高。我们监测了两名男性和一名女性的出生时散布情况，他们离出生地的最大距离分别为1238 m，780 m和1056 m。我们的结果证实，Cipo Canasteros仅限于Campos rupestres的岩石露头生境。部分由于其栖息地的特殊性，Cipo Canasteros被视为濒临灭绝，但其他造成其人口脆弱性的因素包括雌性动物的数量少，甚至可能存活率低，以及由于牛鸟的捕食和繁殖寄生而导致繁殖成功率低。考虑到这些威胁以及其特殊的栖息地和范围有限，Cipo Canasteros的未来保护很可能取决于其坎波斯rupestres栖息地的保护程度。