距离旅游路线和日光条件影响姆万扎平头岩阿迦马(Agama mwanzae)在坦桑尼亚萨纳内国家公园的数量

D. M. Gunda, Ladislaus W. Kahana. Obeid Mahenya, T. J. Sylvina, Abraham Eustace
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引用次数: 0

摘要

对于新建立的保护区来说,记录景观内物种的丰度、结构和分布是非常重要的。在这里,我们评估了坦桑尼亚Saanane国家公园的Mwanza平头岩阿迦马(agama mwanzae)的总丰度以及雌性、雄性和幼崽丰度的变化,与日光条件(阳光和非阳光)以及与人类的接近程度有关。在半径50米的23个地点随机放置,彻底搜索了姆万扎伊蚊。在记录到的364只姆万扎平头岩龟中,85%为成年,15%为幼年。在成年人中,45%是男性,55%是女性。光照条件对黄斑拟蚊总丰度、雌、雄、幼的丰度均有影响,且光照期丰度高于非光照期。与旅游路线的距离是总丰度和雌、幼鱼丰度的最佳预测因子,而不是雄性,丰度随着远离旅游路线而减少。因此,我们建议在其他地方测量agama时考虑这些因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distance from the Tourist Trail and Daylight Condition Affect the Abundance of Mwanza Flat-Headed Rock Agama (Agama mwanzae) in Saanane National Park, Tanzania
ABSTRACT For newly established protected areas, it is important to document the abundance, structure and distribution of the species within the landscape. Here we assessed the variation in total abundance as well as female, male and juvenile abundance of Mwanza flat-headed rock agama (Agama mwanzae) in Saanane National Park, Tanzania, in relation to daylight condition (sunny and non-sunny) and proximity to humans. Twenty-three points of 50-meter radius were randomly placed and thoroughly searched for A. mwanzae. Of 364 individual Mwanza flat-headed rock agamas recorded, 85% were adults and 15% were juveniles. Among adults, 45% were males and 55% were females. Daylight condition was observed to affect total abundance and the abundance of females, males and juveniles of A. mwanzae, with higher abundance being in sunny periods as compared to non-sunny periods. Distance from the tourist trail was the best predictor for total abundance and the abundance of females and juveniles but not males, with abundance decreasing moving away from the tourist trail. Therefore, we suggest these factors be considered when surveying agamas elsewhere.
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