01633nas a2200133   4500008004100000245005900041210005900100300001300159490000800172520119700180100002001377700001801397856008401415       1995                        eng d00aUse of simulated herbaceous canopy by foraging rodents0 aUse of simulated herbaceous canopy by foraging rodents  a304 -3110 v1333 aUse of seeds from simulated herbaceous canopy by western harvest mice (Reithrodontomys megalotis), deer mice (Peromyscus maniculatus) and white-footed mice (Peromyscus leucopus) was examined in laboratory trials. Each mouse was tested on both simulated full-moon and new-moon nights but with only one of three abundances of surface seeds (high, low or zero abundances of seeds in trays on arena floor). White-footed mice are more total seeds (surface plus canopy seeds) during dark-bright than bright-dark trials and with high than low or zero abundances of surface seeds. However, neither the order of dark and bright conditions nor availability of surface seeds influenced total seeds eaten by deer mice and harvest mice. All three species readily foraged in the canopy in the absence of surface seeds (>90% of trials on both dark and bright nights). When surface seeds were abundant, interspecific differences in canopy foraging were evident as canopy foraging occurred during 54% of trials on both dark and bright nights for harvest mice, 58% and 21% of trials on dark and bright nights, respectively, for white-footed mice and 8% and 0% of trials on dark and bright nights for deer mice.1 aJekanoski, R.D.1 aKaufman, D.W.  uhttp://knz.lternet.edu/content/use-simulated-herbaceous-canopy-foraging-rodents01602nas a2200133   4500008004100000245009400041210006900135300001300204490000700217520115000224100002001374700001801394856005601412       1993                        eng d00aExperimental observations of the cutting and climbing of vegetation by hispid cotton rats0 aExperimental observations of the cutting and climbing of vegetat  a249 -2540 v253 a<p>Behavior of cutting and climbing of herbaceous stems by hispid cotton rats (Sigmodon hispidus) was studied using experimental grass canopies under bright and dark laboratory conditions. When seeds were abundant in ground patches, none of 10 cotton rats climbed and fed in the canopy and only two of the 10 cut grass stalks. In the absence of ground seeds, however, all of nine additional rats either cut canopy stems (24 of 36 total trials; four trials per rat) or climbed into the vegetation for seeds (6 of 36). All climbing and eating in the canopy was done by two small (40-42 g) cotton rats. For rats that did not climb, total cut stems were greater when rats (n=3) were tested for two dark nights and then two bright nights ( hivin x=49.5 stems cut during the four nights) than when rats (n=4) were tested for two bright and then two dark trials ( hivin x=27.7, P lt 0.05). Bright illumination negatively affected stem cutting on nights 1-2 (dark: hivin x=20.0 stems cut during nights 1-2, bright: hivin x=5.3, 0.09 gt P gt 0.08), but not nights 3-4 (bright: hivin x=29.5 stems cut during nights 3-4, dark: hivin x=22.3, P gt 0.10).</p>1 aJekanoski, R.D.1 aKaufman, D.W.  uhttp://eurekamag.com/research/008/653/008653070.php00487nas a2200121   4500008004100000245007500041210006900116260004300185300001000228490001400238100002000252856009300272       1990                        eng d00aExperimental analysis of the use of prairie canopy by foraging rodents0 aExperimental analysis of the use of prairie canopy by foraging r  aManhattan, KSbKansas State University  a1 -390 vMS Thesis1 aJekanoski, R.D.  uhttp://knz.lternet.edu/content/experimental-analysis-use-prairie-canopy-foraging-rodents