Conservation and the botanist effect
Conservation and the botanist effect
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DOI：
10.1016/j.biocon.2010.08.008
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发表时间：
2011-01-01
影响因子：
5.9
通讯作者：
Marchant, Rob
中科院分区：
文献类型：
--
作者：
Ahrends, Antje;Rahbek, Carsten;Marchant, Rob
在过去的几十年里，描述性分类学和生物多样性清单的资源大幅减少，而且它们在全球的分布也不均匀。这可能会导致生物多样性数据质量的整体下降以及地理偏差，从而降低库存的实用性和可靠性。我们测试了这一假设与热带树木记录（n = 24，024）从东弧山，坦桑尼亚，1980年至2007年之间，由13个植物学家，其集合代表80%的植物总记录为这一地区。我们的研究结果表明，在热带植物鉴定的实际培训的植物学家记录更多的物种和更多的物种的保护关注（20多个物种，两个更多的地方性和一个更多的濒危物种，每250个标本）比未经培训的植物学家。培训和在现场的人日数解释了96%的物种数量的变化，培训是解释记录的受威胁和特有物种数量的最重要的预测因素。数据质量与可用的设施，与良好的植物标本馆访问显着减少错误识别和拼写错误的比例。我们的分析表明，在比较不同地点的多样性时，特别是在评估稀有和特有物种的数量时，可能有必要考虑记录器的培训，以及全球数据门户网站提供此类信息。我们还建议，在培训植物学家和提供良好的设施方面加大投资，将大大提高记录效率和数据可靠性，从而改善实地的保护规划和实施。(C)2010爱思唯尔有限公司版权所有。
Over the last few decades, resources for descriptive taxonomy and biodiversity inventories have substantially declined, and they are also globally unequally distributed. This could result in an overall decline in the quality of biodiversity data as well as geographic biases, reducing the utility and reliability of inventories. We tested this hypothesis with tropical tree records (n = 24,024) collected from the Eastern Arc Mountains, Tanzania, between 1980 and 2007 by 13 botanists, whose collections represent 80% of the total plant records for this region. Our results show that botanists with practical training in tropical plant identification record both more species and more species of conservation concern (20 more species, two more endemic and one more threatened species per 250 specimens) than untrained botanists. Training and the number of person-days in the field explained 96% of the variation in the numbers of species found, and training was the most important predictor for explaining recorded numbers of threatened and endemic species. Data quality was related to available facilities, with good herbarium access significantly reducing the proportions of misidentifications and misspellings. Our analysis suggests that it may be necessary to account for recorder training when comparing diversity across sites, particularly when assessing numbers of rare and endemic species, and for global data portals to provide such information. We also suggest that greater investment in the training of botanists and in the provisioning of good facilities would substantially increase recording efficiency and data reliability, thereby improving conservation planning and implementation on the ground. (C) 2010 Elsevier Ltd. All rights reserved.