Berenty Reserve, Madagascar: A Long Time in a Small Space

Berenty Reserve, Madagascar: A Long Time in a Small Space
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马达加斯加贝伦蒂保护区:小空间里的漫长岁月

DOI:
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
A. Jolly
A. Jolly
中科院分区:
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作者:
A. Jolly

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伯伦蒂保护区是一个私人拥有的保护区,成立于1936年。占地200公顷,拥有曼德拉河上现存最大的画廊森林。许多国家的科学家在那里学习:研究遵循他们不同的兴趣,而不是整体协调。从长期监测中得出的一个发现是,至少在这个岛屿种群中,雌性狐猴的种群内部和种群之间的竞争以及它们在雌性种群中继承领土的重要性。这可能在维持女性对男性的统治地位方面发挥了作用。长期研究的另一个方面是引入物种带来的变化,包括Leucaena leucocephala,一种受欢迎但有毒的饲料树。尽管受到严重影响的雌羊会失去皮毛,幼崽存活率较低,但这些林分的生长与进入这些林分的羊羊种群的生长是平行的;根除导致当地人口锐减。在1975-1980年间,引进的领尾狐从16只左右增加到2009年的近600只。他们正在占领中央走廊森林。狐猴种群在廊道林中保持原有的睡眠区域,但在外围觅食的数量不断增加,重现了狐猴与乌拉狐猴在自然同属系统中的生态位分离。总的来说,贝伦蒂保护区正在干涸,封闭的廊道森林让位给更开放的灌木丛。因此,对伯伦蒂狐猴的研究是对面对不断变化的环境的进化适应的研究。
Berenty Reserve is a privately owned reserve established in 1936. At 200 ha, it holds the largest remaining gallery forest on the Mandrare River. Scientists of many nationalities have studied there: research follows their diverse interests rather than being coordinated overall. One finding which emerged from long-term monitoring concerns the importance of both within- and between-troop competition for female Lemur catta and their inheritance of territory in the female line, at least in this islanded population. This may play a role in the maintenance of female dominance over males. Another aspect of long-term study is the changes brought by introduced species, including Leucaena leucocephala, a favored, but toxic, forage tree. The growth of leucaena stands paralleled population growth of the L. catta troops with access to these stands, although highly affected females lost fur and had low infant survival; eradication produced a local population crash. Introduced Eulemur rufus x collaris have grown from about 16 individuals in 1975–1980 to almost 600 in 2009. They are taking over the central gallery forest. L. catta troops maintain their original sleeping areas in the gallery forest but increasingly forage on the periphery, recreating the niche separation described for Lemur and Eulemur in natural sympatry. Overall, Berenty Reserve is drying out, with closed-canopy gallery forest giving way to more open scrub. Research on Berenty’s lemurs is thus the study of evolved adaptations confronted with a changing environment.
DOI: 10.1159/000156505
发表时间: 1990-07
期刊: Folia primatologica; international journal of primatology
影响因子: --
作者:
M. E. Pereira;R. Kaufman;P. M. Kappeler;D. Overdorff
通讯作者: M. E. Pereira;R. Kaufman;P. M. Kappeler;D. Overdorff