Spatial α-diversity patterns of diverse insect taxa in Northern China: Lessons for biodiversity conservation

被引:29
作者
Axmacher, Jan C. [2 ]
Liu, Yunhui [1 ]
Wang, Changliu [1 ]
Li, Liangtao [1 ]
Yu, Zhenrong [1 ]
机构
[1] China Agr Univ, Coll Agr Resources & Environm Sci, Beijing 100193, Peoples R China
[2] UCL, UCL Dept Geog, London WC1E 6BT, England
基金
中国国家自然科学基金;
关键词
Arthropods; Biodiversity indicators; Cross-taxon congruency; Invertebrates; Phytodiversity; Surrogates; GEOMETRID MOTHS LEPIDOPTERA; SPECIES-RICHNESS; PLANT DIVERSITY; TERRESTRIAL BIODIVERSITY; AGRICULTURAL LANDSCAPE; MT-KILIMANJARO; FOREST; INDICATORS; ENVIRONMENT; DISTURBANCE;
D O I
10.1016/j.biocon.2011.06.016
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
Current approaches in terrestrial biodiversity conservation focus predominantly on plants and vertebrates. While these groups account for less than 4% of the estimated global species richness, it is commonly argued that especially the species richness in higher plants is a suitable indicator of overall biodiversity. We tested this assumption, investigating species richness and equitability patterns in three highly species-rich insect families and their links with the vegetation and other environmental factors. Vegetation surveys were combined with pitfall and light trapping to establish the alpha-diversity of ground beetles, geometrid moths and arctiid moths on 48 plots at varying altitudes between Beijing and the Inner Mongolian Plateau. Soil pH and nutrient status were also recorded. The alpha-diversity patterns in the three insect families were non-congruent, and links with phytodiversity were weak. The spatial alpha-diversity patterns in each of the three insect families were significantly correlated with the species density of individual plant families. These links varied between the three insect taxa and were mostly negative in moths. Furthermore, geometrid moth diversity decreased with increasing elevation and decreasing soil pH. Strongly diverging a-diversity patterns across different insect taxa illustrate that it is impossible to find a simple surrogate representing cross-taxon diversity for these highly diverse groups. Furthermore, phytodiversity and vegetation composition appear to play a limited role in governing insect diversity patterns. These results underline the significant risk that current plant-focused approaches in terrestrial biodiversity conservation are inadequate in addressing the conservation needs of the vast majority of species on earth. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2362 / 2368
页数:7
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