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首页> 外文期刊>Journal of arid environments >Population density of elephants and other key large herbivores in the Amboseli ecosystem of Kenya in relation to droughts
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Population density of elephants and other key large herbivores in the Amboseli ecosystem of Kenya in relation to droughts

机译:与干旱相关的肯尼亚安博塞利生态系统中大象和其他主要食草动物的种群密度

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Kenya/Tanzania borderland is a critical area for conservation of biodiversity. This study was done to establish the effects of 2007 and 2009 droughts through aerial counts. Findings indicate that large mammal population collapsed, but some species crashed more than others. Total large mammal density declined over three times (-207.43%), recovering modestly (+41.59%) between 2010 and 2013. Over that time, the most abundant species was zebra (10,466.3 +/- 2860.5 animals), followed by wildebeest (8921.0 +/- 4897.9), Grant's gazelle (3447.0 +/- 303.7), Maasai giraffe (1381.3 +/- 132.7), African elephant (990.67 +/- 12.60), eland (544.0 +/- 311.4), Thomson's gazelle (495.3 +/- 232.3), buffalo (331.3 +/- 128.8) and impala (3543 +/- 61.0). The species affected most by drought was lesser kudu, followed by African buffalo, Maasai giraffe, kongoni, common eland, common wildebeest, common zebra, Grant's gazelle, gerenuk, impala, African elephant, Thomson's gazelle and fringe - eared Oryx respectively. Further, large mammal species numbers were dependent on location (chi(2) = 13,647.35, df = 15, p < 0.001), with numbers being higher near protected areas. Animals with low numbers, specific diets, water - dependent and limited range were most affected by the drought. This provides a baseline for future comparisons and also future effects of droughts. (C) 2016 Elsevier Ltd. All rights reserved.
机译:肯尼亚/坦桑尼亚边境地区是保护生物多样性的重要地区。进行这项研究是为了通过航空计数确定2007年和2009年干旱的影响。研究结果表明,大型哺乳动物种群已经崩溃,但是某些物种的崩溃比其他物种更多。大型哺乳动物的总密度下降了三倍(-207.43%),在2010年至2013年间略有恢复(+ 41.59%)。在此期间,斑马(10,466.3 +/- 2860.5只动物)是最丰富的物种,其次是牛羚(8921.0) +/- 4897.9),格兰特瞪羚(3447.0 +/- 303.7),马赛长颈鹿(1381.3 +/- 132.7),非洲象(990.67 +/- 12.60),大羚羊(544.0 +/- 311.4),汤姆森瞪羚(495.3 + (-232.3),水牛(331.3 +/- 128.8)和黑斑羚(3543 +/- 61.0)。受干旱影响最大的物种是较少的kudu,其次是非洲水牛,马赛长颈鹿,孔戈尼,普通大羚羊,普通牛羚,普通斑马,格兰特瞪羚,gerenuk,黑斑羚,非洲象,汤姆森瞪羚和有穗的羚羊。此外,大型哺乳动物物种数量取决于位置(chi(2)= 13,647.35,df = 15,p <0.001),保护区附近的数量更高。干旱影响最大的动物是数量少,特定饮食,依赖水和有限范围的动物。这为将来的比较以及干旱的未来影响提供了基准。 (C)2016 Elsevier Ltd.保留所有权利。

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