Plot-Measured Variables Indicate Landscape-Scale Patterns of Annual Grass Invasion in Northwestern US Rangelands

被引:2
作者
De Stefano, Andrea [1 ]
Mealor, Brian A. [2 ]
Jones, Lisa C. [3 ]
Lehnhoff, Erik A. [4 ]
Mangold, Jane M. [5 ]
Prather, Timothy [3 ]
Ransom, Corey, V [6 ]
Rew, Lisa J. [5 ]
机构
[1] Louisiana State Univ AgCtr, Hill Farm Res Stn, Homer, LA 71040 USA
[2] Univ Wyoming, Inst Managing Annual Grasses Invading Nat Ecosyst, Sheridan Res & Extens Ctr, Sheridan, WY 82801 USA
[3] Univ Idaho, Dept Plant Sci, Moscow, ID 83843 USA
[4] New Mexico State Univ, Dept Entomol Plant Pathol & Weed Sci, Las Cruces, NM 88003 USA
[5] Montana State Univ, Dept Land Resources & Environm Sci, Bozeman, MT 59717 USA
[6] Utah State Univ, Plants Soils & Climate Dept, Logan, UT 84321 USA
关键词
Key invasive annual grasses; invasive species management; native perennial greases; Shannon index; species richness; CHEATGRASS BROMUS-TECTORUM; WYOMING BIG SAGEBRUSH; CONTERMINOUS UNITED-STATES; CLIMATE-CHANGE; NUTRIENT AVAILABILITY; BIOLOGICAL INVASIONS; PLANT-COMMUNITIES; NATIVE GRASSES; FIRE CYCLE; SOIL-WATER;
D O I
10.1016/j.rama.2023.10.003
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Introduced annual grasses (IAGs) have invaded tens of millions of hectares of western US rangelands, displacing native vegetation and altering ecosystem functions and services. Our main goal was to assess the influence of introduced annual grasses by 1) exploring the relationships among IAG cover, species richness, diversity, and cover of other plant functional groups; and 2) identifying biotic and abiotic indi-cators of IAG cover. Using data from 64 sites and 420 plots from rangelands of the northwestern United States, we explored linear correlations between IAG cover and species richness, Shannon index, and plant functional group cover. We also used Least Absolute Shrinkage and Selection Operator (LASSO) regression and nonmetric multidimensional scaling to select environmental variables and plant functional groups that were associated with IAG cover. Our findings revealed a negative correlation among IAG cover and species richness, Shannon index, native perennial grass cover, and other perennial species cover and a positive correlation with other annual species cover. Our results identified several indicators: cover of native perennial grass; other perennial species (forbs and shrubs); litter; bare ground/rock; soil attributes (pH, bulk density, clay, and nitrogen); and mean annual temperatures. Our results showed that peren-nial vegetation, especially native perennial grasses, have a negative correlation with IAG. Warmer mean annual temperatures, but not higher daily extreme temperatures, and higher bulk density were impor-tant indicators for IAG preferred sites, while lower soil nitrogen may denote soil changes due to invasion. Given the fundamental role of disturbance in determining the magnitude and scale of IAG invasion, our results provide important insights for scientists and managers.(c) 2023 The Authors. Published by Elsevier Inc. on behalf of The Society for Range Management.This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ )
引用
收藏
页码:90 / 99
页数:10
相关论文
共 116 条
[51]   Invasive grasses increase fire occurrence and frequency across US ecoregions [J].
Fusco, Emily J. ;
Finn, John T. ;
Balch, Jennifer K. ;
Nagy, R. Chelsea ;
Bradley, Bethany A. .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (47) :23594-23599
[52]   An aboveground-belowground assessment of ecosystem properties associated with exotic annual brome invasion [J].
Gasch, Caley K. ;
Enloe, Stephen F. ;
Stahl, Peter D. ;
Williams, Stephen E. .
BIOLOGY AND FERTILITY OF SOILS, 2013, 49 (07) :919-928
[53]   Roads as conduits for exotic plant invasions in a semiarid landscape [J].
Gelbard, JL ;
Belnap, J .
CONSERVATION BIOLOGY, 2003, 17 (02) :420-432
[54]   Response of Delphinium occidentale and Associated Vegetation to Aminocyclopyrachlor [J].
Greet, Brandon J. ;
Mealor, Brian A. ;
Kniss, Andrew R. .
RANGELAND ECOLOGY & MANAGEMENT, 2016, 69 (06) :474-480
[55]  
Harrell FE, 2015, SPRINGER SER STAT, P63, DOI 10.1007/978-3-319-19425-7_4
[56]   Effects of Ventenata dubia removal on rangelands of northeast Wyoming [J].
Hart, Marshall ;
Mealor, Brian A. .
INVASIVE PLANT SCIENCE AND MANAGEMENT, 2021, 14 (03) :156-163
[57]  
Hastie T., 2009, The elements of statistical learning: Data mining, inference, and prediction, DOI DOI 10.1007/978-0-387-84858-7
[58]  
Hastie T., 2009, The Elements of Statistical Learning, P139, DOI DOI 10.1007/978-0-387-84858-75
[59]   Effects of fire and environmental variables on plant structure and composition in grazed salt desert shrublands of the Great Basin (USA) [J].
Haubensak, K. ;
D'Antonio, C. ;
Wixon, D. .
JOURNAL OF ARID ENVIRONMENTS, 2009, 73 (6-7) :643-650
[60]  
Hergert H. J., 2015, Ecological Restoration, V33, P74, DOI 10.3368/er.33.1.74