气候变化领域集成服务门户(CCPortal): Winter Habitat Indices (WHIs) for the contiguous US and their relationship with winter bird diversity

CCPortal

DOI	10.1016/j.rse.2021.112309
	Winter Habitat Indices (WHIs) for the contiguous US and their relationship with winter bird diversity
	Gudex-Cross D.; Keyser S.R.; Zuckerberg B.; Fink D.; Zhu L.; Pauli J.N.; Radeloff V.C.
发表日期	2021
ISSN	00344257
卷号	255
英文摘要	The seasonal dynamics of snow cover strongly affect ecosystem processes and winter habitat, making them an important driver of terrestrial biodiversity patterns. Snow cover data from the Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua and Terra satellites can capture these dynamics over large spatiotemporal scales, allowing for the development of indices with specific application in ecological research and predicting biodiversity. Here, our primary objective was to derive winter habitat indices (WHIs) from MODIS that quantify snow season length, snow cover variability, and the prevalence of frozen ground without snow as a proxy for subnivium conditions. We calculated the WHIs for the full snow year (Aug-Jul) and winter months (Dec-Feb) across the contiguous US from 2003/04 to 2017/18 and validated them with ground-based data from 797 meteorological stations. To demonstrate the potential of the WHIs for biodiversity assessments, we modeled their relationships with winter bird species richness derived from eBird observations. The WHIs had clear spatial patterns reflecting both altitudinal and latitudinal gradients in snow cover. Snow season length was generally longer at higher latitudes and elevations, while snow cover variability and frozen ground without snow were highest across low elevations of the mid latitudes. Variability in the WHIs was largely driven by elevation in the West and by latitude in the East. Snow season length and frozen ground without snow were most accurately mapped, and had correlations with station data across all years of 0.91 and 0.85, respectively. Snow cover variability was accurately mapped for winter (r = 0.79), but not for the full snow year (r = −0.21). The model containing all three WHIs used to predict winter bird species richness patterns across the contiguous US was by far the best, demonstrating the individual value of each index. Regions with longer snow seasons generally supported fewer species. Species richness increased steadily up to moderate levels of snow cover variability and frozen ground without snow, after which it steeply declined. Our results show that the MODIS WHIs accurately characterized unique gradients of snow cover dynamics and provided important information on winter habitat conditions for birds, highlighting their potential for ecological research and conservation planning. © 2021 Elsevier Inc.
英文关键词	Citizen science; eBird; Frozen ground; MODIS; North America; Remote sensing; Snow; Species richness
语种	英语
scopus关键词	Biodiversity; Birds; Conservation; Dynamics; Ecosystems; Forestry; Radiometers; Soils; Conservation planning; Habitat conditions; Latitudinal gradients; Meteorological station; Moderate resolution imaging spectroradiometer; Snow-cover dynamics; Spatio-temporal scale; Terrestrial biodiversity; Snow making; Satellites
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178958
作者单位	SILVIS Lab, Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, 1630 Linden Drive, Madison, WI 53706, United States; Zuckerberg Lab, Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, 1630 Linden Drive, Madison, WI 53706, United States; Cornell Lab of Ornithology, 159 Sapsucker Woods Rd., Ithaca, NY 14850, United States; Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection, College of Resources and Environment, Linyi University, Linyi, Shandong 276000, China; Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, 1630 Linden Drive, Madison, WI 53706, United States
推荐引用方式 GB/T 7714	Gudex-Cross D.,Keyser S.R.,Zuckerberg B.,et al. Winter Habitat Indices (WHIs) for the contiguous US and their relationship with winter bird diversity[J],2021,255.
APA	Gudex-Cross D..,Keyser S.R..,Zuckerberg B..,Fink D..,Zhu L..,...&Radeloff V.C..(2021).Winter Habitat Indices (WHIs) for the contiguous US and their relationship with winter bird diversity.Remote Sensing of Environment,255.
MLA	Gudex-Cross D.,et al."Winter Habitat Indices (WHIs) for the contiguous US and their relationship with winter bird diversity".Remote Sensing of Environment 255(2021).