Taxonomic and Life History Correlates of Rarity in the Flora of the United States and Canada

美国和加拿大植物区系稀有性的分类学和生活史相关性

• 批准号: 9726456
• 负责人: Paul Sabatier
• 金额: $ 10万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-03-01 至 2001-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9726456&HistoricalAwards=false
• 关键词: Taxonomic; Life; History; Correlates; Rarity

9726456 Schwartz Knowledge about the factors controlling plant rarity are critical to successful conservation. This grant from the Division of Environmental Biology will utilize the Nature Conservancy Natural Heritage Data Base on plants of the United States and Canada to make broad generalizations about the characteristics of rare plants. Using statistical techniques, it will be determined if rarity is correlated with: ( a) life history attributes, (b) taxonomic affiliation, and c) phylogenetic lineage. This research focuses on discerning broad patterns of rarity first, and then refines the focus down to finer scales (ecological, geographical, taxonomic) in order to determine which patterns observed at the broad scale remain consistent across scales.

9726456 Schwartz 了解控制植物稀有性的因素对于成功保护至关重要。环境生物学部的这笔赠款将利用美国和加拿大植物保护协会自然遗产数据库对稀有植物的特征进行广泛的概括。使用统计技术，将确定稀有性是否与以下因素相关：(a) 生活史属性，(b) 分类学隶属关系，以及 c) 系统发育谱系。这项研究首先侧重于辨别稀有性的广泛模式，然后将重点细化到更精细的尺度（生态、地理、分类），以确定在广泛尺度上观察到的哪些模式在各个尺度上保持一致。