Department of Anthropology, Arizona State University, Tempe.
Am J Primatol. 1983;5(3):181-196. doi: 10.1002/ajp.1350050302.
The reproductive patterns (birth seasonality, litter size, litters per year) of two sympatric species of galago (Galago zanzibaricus and G. garnettii) were studied in a coastal forest in Kenya for a two-year period. Trap-retrap and radio tracking methods were employed. G. zanzibaricus has one infant twice per year; G. garnettii has one infant once per year. Both species are seasonal breeders. These East African galagos are intermediate in reproductive patterns when compared with galagos from South African woodland (G. senegalensis moholi and G. crassicaudatus umbrosis) and West African rainforest (G. alleni and G. demidovii). Climatic patterns (total annual rainfall, seasonal variability of rainfall, variability in total annual rainfall, and annual temperature variability) are also compared for the three regions. Climatically, East Africa is intermediate between West and South Africa in total annual rainfall and in seasonality of rainfall, but not in year-to-year variability in rainfall. East Africa shows the highest variability in annual rainfall. South Africa has the coldest dry seasons and highest variability in temperatures. The results of this study suggest that "r-selection" and "K-selection" do not provide adequate explanations of galago reproductive patterns.
在肯尼亚沿海森林中，对两种共生的长尾灵长类动物（大狨猴和加氏长尾猴）进行了为期两年的研究，以了解它们的繁殖模式（季节性生育、产仔数、年产胎数）。使用了陷阱重捕和无线电跟踪方法。大狨猴每年产两胎，每胎一只幼崽；加氏长尾猴每年产一胎，每胎一只幼崽。这两个物种都是季节性繁殖者。与南非林地（莫霍利南非长尾猴和斑背长尾猴）和西非雨林（艾伦长尾猴和德氏长尾猴）的长尾猴相比，这些东非长尾猴的繁殖模式处于中间水平。还比较了三个地区的气候模式（总年降雨量、降雨量季节性变化、总年降雨量变化和年温度变化）。从气候上看，东非的总年降雨量和降雨量季节性变化在南非和西非之间处于中间水平，但降雨量年际变化则不然。东非的年降雨量变化最大。南非的旱季最冷，温度变化最大。本研究结果表明，“r 选择”和“K 选择”并不能充分解释长尾猴的繁殖模式。
