Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 1853697 |
| Do spatial traits (geography) or species traits better explain vulnerability and resilience of plants to external threats? | |
| Helen Regan | |
| 主持机构 | University of California-Riverside |
| 开始日期 | 2019-09-01 |
| 结束日期 | 2023-02-28 |
| 资助经费 | 450000(USD) |
| 项目类别 | Standard Grant |
| 资助机构 | US-NSF（美国国家科学基金会） |
| 项目所属计划 | Geography and Spatial Sciences |
| 语种 | 英语 |
| 国家 | 美国 |
| 英文简介 | This project identifies the elements of plant biodiversity that are most vulnerable and, conversely, most resilient to the interacting threats of habitat loss, via land-use change and urbanization, as well as environmental variability and related changes in wildfire regimes. Identifying generalities in the factors that confer vulnerability or resilience to species based on their innate characteristics (their species traits) and where they naturally occur (their geography or spatial traits) in relation to threats, is the intellectual contribution of this project and to geography and the spatial sciences. Results from this study permit a prioritization of species and ecosystems and identify locations for management and conservation of plant diversity. This project will be conducted at the University of California Riverside (UCR), a Hispanic-serving institution located in one of the most socio-economically and culturally diverse regions in the United States. The PIs will leverage existing STEM education initiatives at UCR to engage undergraduates in local K-12 classrooms through the CalTeach program, where they will introduce spatial science and models as a framework for understanding geographic concepts, ecological principles and pressing conservation issues. The vulnerability of a plant species to threat depends on their distribution (biogeography) in relation to these threats, as well as their species traits. Plants may be long or short lived (redwood trees versus poppies), escape habitat fragmentation and loss because their ecological niche places them in locations undesirable for development, or they may have traits that allow them to recover their populations following fire (fire-stimulated seed germination, or resprouting from underground parts). In a changing environment, plants can only move (migrate) away from threats intergenerationally, mainly via seed dispersal. This project identifies the general aspects of spatial traits (biogeography) versus species traits that confer more or less vulnerability to plants under global change in the coming century as human populations grow and land-use changes. The PIs use simulation modeling to project the population growth or decline for a wide range of plant species that differ in their disturbance-response and other species traits (life form: trees, shrubs, herbs; fire-response; and morphological traits) and their biogeography (coastal, mountain and desert distributions) to identify generalities regarding their vulnerability to threats. They develop and use statistical models of spatially explicit fire risk and species biogeography using modern regression and machine learning methods and use those models to project spatially explicit changes under different land-use and environmental scenarios. The PIs construct plant population models using data from the COMPADRE Plant Matrix Database and will extract species traits from the TRY Plant Trait Database. This project focuses on the biodiversity of the California Floristic Province, but trends identified will be broadly relevant throughout the entire western U.S. where water-limited ecosystems are strongly impacted by increasing environmental variability and increasing wildfire. This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria. |
| 来源学科分类 | Social, Behavioral and Economic Sciences |
| URL | https://www.nsf.gov/awardsearch/showAward?AWD_ID=1853697 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/343522 |
| 推荐引用方式 GB/T 7714 | Helen Regan.Do spatial traits (geography) or species traits better explain vulnerability and resilience of plants to external threats?.2019. |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [Helen Regan]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Helen Regan]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Helen Regan]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
