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DOI10.1073/pnas.1512650113
Do geographically isolated wetlands influence landscape functions?
Cohen, Matthew J.1; Creed, Irena F.2; Alexander, Laurie3; Basu, Nandita B.4; Calhoun, Aram J. K.5; Craft, Christopher6; D'; Amico, Ellen7; DeKeyser, Edward8; Fowler, Laurie9; Golden, Heather E.10; Jawitz, James W.11; Kalla, Peter12; Kirkman, L. Katherine13; Lane, Charles R.10; Lang, Megan14; Leibowitz, Scott G.15; Lewis, David Bruce16; Marton, John17; McLaughlin, Daniel L.18; Mushet, David M.19; Raanan-Kiperwas, Hadas20; Rains, Mark C.21; Smith, Lora13; Walls, Susan C.22
发表日期2016-02-23
ISSN0027-8424
卷号113期号:8页码:1978-1986
英文摘要

Geographically isolated wetlands (GIWs), those surrounded by uplands, exchange materials, energy, and organisms with other elements in hydrological and habitat networks, contributing to landscape functions, such as flow generation, nutrient and sediment retention, and biodiversity support. GIWs constitute most of the wetlands in many North American landscapes, provide a disproportionately large fraction of wetland edges where many functions are enhanced, and form complexes with other water bodies to create spatial and temporal heterogeneity in the timing, flow paths, and magnitude of network connectivity. These attributes signal a critical role for GIWs in sustaining a portfolio of landscape functions, but legal protections remain weak despite preferential loss from many landscapes. GIWs lack persistent surface water connections, but this condition does not imply the absence of hydrological, biogeochemical, and biological exchanges with nearby and downstream waters. Although hydrological and biogeochemical connectivity is often episodic or slow (e.g., via groundwater), hydrologic continuity and limited evaporative solute enrichment suggest both flow generation and solute and sediment retention. Similarly, whereas biological connectivity usually requires overland dispersal, numerous organisms, including many rare or threatened species, use both GIWs and downstream waters at different times or life stages, suggesting that GIWs are critical elements of landscape habitat mosaics. Indeed, weaker hydrologic connectivity with downstream waters and constrained biological connectivity with other landscape elements are precisely what enhances some GIW functions and enables others. Based on analysis of wetland geography and synthesis of wetland functions, we argue that sustaining landscape functions requires conserving the entire continuum of wetland connectivity, including GIWs.


英文关键词connectivity;navigable waters;significant nexus
语种英语
WOS记录号WOS:000370620300032
来源期刊PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
来源机构美国环保署
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/61997
作者单位1.Univ Florida, Sch Forest Resources & Conservat, Gainesville, FL 32611 USA;
2.Univ Western Ontario, Dept Biol, London, ON N6A 5B7, Canada;
3.US EPA, Natl Ctr Environm Assessment, Washington, DC 20460 USA;
4.Univ Waterloo, Dept Earth & Environm Sci, Waterloo, ON N2L 3G1, Canada;
5.Univ Maine, Dept Wildlife Fisheries & Conservat Biol, Orono, ME 04469 USA;
6.Indiana Univ, Sch Publ Hlth & Environm Affairs, Bloomington, IN 47405 USA;
7.CSS Dynamac Corp, Cincinnati, OH 45268 USA;
8.N Dakota State Univ, Sch Nat Resource Sci, Fargo, ND 58105 USA;
9.Univ Georgia, Odum Sch Ecol, Athens, GA 30602 USA;
10.US EPA, Natl Exposure Res Lab, Cincinnati, OH 45268 USA;
11.Univ Florida, Soil & Water Sci Dept, Gainesville, FL 32611 USA;
12.US EPA, Reg 4, Athens, GA 30605 USA;
13.Joseph W Jones Ecol Res Ctr, Newton, GA 39870 USA;
14.Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA;
15.US EPA, Western Ecol Div, Natl Hlth & Environm Effects Res Lab, Corvallis, OR 97333 USA;
16.Univ S Florida, Dept Integrat Biol, Tampa, FL 33620 USA;
17.CDM Smith Inc, Indianapolis, IN 46204 USA;
18.Virginia Polytech Inst & State Univ, Dept Forest Resources & Environm Conservat, Blacksburg, VA 24061 USA;
19.US Geol Survey, Prairie & No Wildlife Res Ctr, Jamestown, ND 58401 USA;
20.US EPA, Off Wetlands Oceans & Watersheds, Washington, DC 20460 USA;
21.Univ S Florida, Sch Geosci, Tampa, FL USA;
22.US Geol Survey, Wetland & Aquat Res Ctr, Gainesville, FL 32653 USA
推荐引用方式
GB/T 7714
Cohen, Matthew J.,Creed, Irena F.,Alexander, Laurie,et al. Do geographically isolated wetlands influence landscape functions?[J]. 美国环保署,2016,113(8):1978-1986.
APA Cohen, Matthew J..,Creed, Irena F..,Alexander, Laurie.,Basu, Nandita B..,Calhoun, Aram J. K..,...&Walls, Susan C..(2016).Do geographically isolated wetlands influence landscape functions?.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,113(8),1978-1986.
MLA Cohen, Matthew J.,et al."Do geographically isolated wetlands influence landscape functions?".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 113.8(2016):1978-1986.
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