干旱区生态环境知识资源中心(Arid): Challenges characterizing N deposition to high elevation protected areas: A case study integrating instrument, simulated, and lichen inventory datasets for the Devils Postpile National Monument and surrounding region, USA

Arid

DOI	10.1016/j.ecolind.2020.107311
	Challenges characterizing N deposition to high elevation protected areas: A case study integrating instrument, simulated, and lichen inventory datasets for the Devils Postpile National Monument and surrounding region, USA
	Jovan, Sarah; Fenn, Mark E.; Buhler, Monica; Bytnerowicz, Andrzej; Kovasi, Adrienne; Hutten, Martin; DiMeglio, Elisa; Schweizer, Donald
通讯作者	Jovan, S (corresponding author), USDA Forest Serv, PNW Res Stn, 620 SW Main,Suite 502, Portland, OR 97205 USA.
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2021
卷号	122
英文摘要	Excess N deposition is a common stressor of ecological health. Sensitive biota, including many lichens, respond to small differences in atmospheric N deposition. For lands with a conservation mandate, obtaining sufficient N data to evaluate risks is a challenge, especially in Mediterranean or arid landscapes. Managers in the Western U. S. commonly use epiphytic (tree-dwelling) lichens to supplement N assessments, although options for higher elevations lacking epiphytes are poorly developed. Managers instead rely on broad-scale air quality simulations like the Total Deposition Model (TDEP). The Sierra Nevada Range is an example where anthropogenic N reaches mid-to-high elevation protected areas but managers lack tools for monitoring at ecologically relevant spatialscales. Our main goals were to demonstrate how well-studied epiphytic bioindicators can supplement N assessments and recommend saxicolous (rock-dwelling) candidates for similar development to improve coverage in higher elevations. As a case study, we characterized N deposition at a small (323 ha) protected area, Devils Postpile National Monument (DEPO), by integrating data from TDEP, air instruments, and assays of %N in the epiphyte Letharia vulpina. We used the regional N threshold associated with detrimental effects to epiphytic lichen communities, 2.9 kg N ha(-1) yr(-1) in throughfall (i.e. under a tree canopy), as a provisional critical load (CL) for indicating areas at risk of ecological impacts. Results clearly showed the need for empirical, diverse, and finer-scaled information, even for an area as small as DEPO. Importantly, simulations from TDEP overestimated dry deposition of oxidized N, making total N estimates nearly twice measured values (6.0 vs 3.03 - 3.66 kg N ha(-1) yr(-1), respectively). While small, our L. vulpina dataset (n = 5) from the Monument indicated highly variable N in throughfall (1.7 - 4.44 kg N ha(-1) yr(-1)), with small-scale drivers, like proximity to the river canyon and the Central Valley, tipping the scale towards CL exceedance. Regional L. vulpina assays (n = 355) showed a distinct north-to-south gradient in California where N deposition at DEPO was highly similar to the nearby protected area, Yosemite National Park, where ecological impacts of excess N are well-documented. To expand N biomonitoring into higher elevation areas, we recommend vetting five widespread saxicolous species, Rhizoplaca melanophthalma, Umbilicaria phaea, U. polaris, Xanthoparmelia coloradoensis, and X. cumberlandia.
英文关键词	Epiphytic lichens Saxicolous lichens Nitrogen deposition Sierra Nevada Range Critical loads Federal class 1 areas
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000613220400004
WOS关键词	SAN-BERNARDINO MOUNTAINS ; NITROGEN DEPOSITION ; ATMOSPHERIC DEPOSITION ; CRITICAL LOADS ; CANOPY INTERACTIONS ; MONTANE ECOSYSTEMS ; SIERRA-NEVADA ; SURFACE OZONE ; CALIFORNIA ; FORESTS
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347818
作者单位	[Jovan, Sarah] USDA Forest Serv, PNW Res Stn, 620 SW Main,Suite 502, Portland, OR 97205 USA; [Fenn, Mark E.; Bytnerowicz, Andrzej] USDA Forest Serv, PSW Res Stn, 4955 Canyon Crest Dr, Riverside, CA 92507 USA; [Buhler, Monica] Devils Postpile Natl Monument, Natl Pk Serv, Mammoth Lakes, CA USA; [Kovasi, Adrienne; DiMeglio, Elisa] Oregon State Univ, Dept Bot & Plant Pathol, 2082 Cordley Hall, Corvallis, OR 97331 USA; [Hutten, Martin] USDA Forest Serv, Wrangell, AK USA; [Schweizer, Donald] USDA Forest Serv, 351 Pacu Lane, Bishop, CA 93514 USA; [Schweizer, Donald] Univ Calif Merced, Hlth Sci Res Inst, 5200 N Lake Rd, Merced, CA 95343 USA
推荐引用方式 GB/T 7714	Jovan, Sarah,Fenn, Mark E.,Buhler, Monica,et al. Challenges characterizing N deposition to high elevation protected areas: A case study integrating instrument, simulated, and lichen inventory datasets for the Devils Postpile National Monument and surrounding region, USA[J],2021,122.
APA	Jovan, Sarah.,Fenn, Mark E..,Buhler, Monica.,Bytnerowicz, Andrzej.,Kovasi, Adrienne.,...&Schweizer, Donald.(2021).Challenges characterizing N deposition to high elevation protected areas: A case study integrating instrument, simulated, and lichen inventory datasets for the Devils Postpile National Monument and surrounding region, USA.ECOLOGICAL INDICATORS,122.
MLA	Jovan, Sarah,et al."Challenges characterizing N deposition to high elevation protected areas: A case study integrating instrument, simulated, and lichen inventory datasets for the Devils Postpile National Monument and surrounding region, USA".ECOLOGICAL INDICATORS 122(2021).