Estimation of fat sand rat Psammomys obesus abundance by using surface indices
Estimation of fat sand rat Psammomys obesus abundance by using surface indices
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DOI：
10.4098/at.arch.99-35
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发表时间：
1999-12-01
影响因子：
--
通讯作者：
Ashford, RW
中科院分区：
文献类型：
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作者：
Fichet-Calvet, E;Jomaa, I;Ashford, RW
肥胖沙鼠（Psammomys obesus）是人类皮肤利什曼病的重要宿主。为了开发一种方法来监测这种啮齿动物在大面积的人口密度的变化，在洞穴入口处的食物，粪便，尿液标记和土丘的碎片进行了评估，作为丰富的指标。将结果与诱捕同时测量的种群密度进行比较。在全年中，尿液数学与丰度的相关性很差，但其他三个指标相关性很好。食物碎片和粪便的相关系数为0.74。这种相关性在雨季最好，在干燥条件下较差。这个间接的人口指数的值进行了讨论，在气候条件。提出了在时间和空间上建立一个监测系统的细节。
The fat sand rat Psammomys obesus Cretzschmar, 1828 is an important reservoir host for the human disease, cutaneous leishmaniasis. To develop a method for monitoring changes in the population density of this rodent over large areas, fragments of food, faeces, urine marks, and earth mounds at the burrow entrance were evaluated as indicators of abundance. The results were compared with population density measured simultaneously by trapping. Through the year as a whole, urine maths correlate poorly with abundance, but the three other indicators correlate well. A correlation coefficient of 0.74 is achieved with food fragments and faeces combined. The correlation is best during the wet season and poorer in dry conditions. The value of this indirect population index is discussed in relation to climatic conditions. Details are proposed for the establishment of a monitoring system for P. obesus populations in time and space.