Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Black-tailed jackrabbit preferences for eight forages used for reclamation of Great Basin rangelands.

Abstract

In field experiments conducted at Burns, Oregon in 1990 Leymus cinereus cv. Magnar and Trailhead, Pseudoroegneria spicata [Elymus spicatus] cv. Goldar, Elymus lanceolatus cv. #9021076 and Secar, Psathyrostachys juncea cv. Bozoisky, Agropyron desertorum cv. Nordon and A. desertorum Ă— A. cristatum cv. Hycrest II were transplanted to a coarse loamy soil (Aridic Duric Haploxerolls mixed with Orthidic Durixerolls). Jackrabbits (Lepus californicus) had free access to the plots from early June to 10 July when the plots were fenced. About 34% of all plants were grazed with Nordon and Hycrest heavily grazed (about 70% defoliation) and about 6% of these plants were killed. Goldar, #9021076 and Secar were grazed at average levels (30 to 40%) and Trailhead and Magnar were only lightly grazed (5-10%).