Research Article D.C. LIGHTFOOTJournal of Orthoptera Research 2018, 27(1): 35-5135 The effects of livestock grazing and climate variation on vegetation and grasshopper communities in the northern Chihuahuan Desert DAVID C. LIGHTFOOT1 1 Museum of Southwestern Biology, Biology Department, University of New Mexico, Albuquerque, NM, USA, 87131. Corresponding author: David C. Lightfoot (
[email protected]) Academic editor: Tim Gardiner | Received 1 August 2017 | Accepted 9 November 2017 | Published 12 June 2018 http://zoobank.org/C95315B9-EF67-4505-AD53-76A849F6E645 Citation: Lightfoot DC (2018) The effects of livestock grazing and climate variation on vegetation and grasshopper communities in the northern Chihuahuan Desert. Journal of Orthoptera Research 27(1): 35–51. https://doi.org/10.3897/jor.27.19945 Abstract by species adaptations to local soils and vegetation composition and structure (e.g. Anderson 1964, Mulkern 1967, 1982, Otte Grasshoppers are important herbivores of North American semi-arid and Joern 1977, Joern 1979, 1982, Kang et al. 1989, Fielding and grasslands and shrublands, and vegetation and climate are key factors con- Brusven 1995a, Torrusio et al. 2002, Cigliano et al. 2010, Savitsky trolling their species compositions and population dynamics. Domestic 2010). Population densities of many grasshopper species fluctuate livestock grazing is a historic and a current landscape-scale ecological per- widely over time, apparently largely due to bottom-up changes in turbation that has caused reductions of perennial grasses and increases