Desirables and weeds for roadside management : a northern Rocky Mountain catalogue /

Sulphur-bearing species in the coma of comet 67P/Churyumov–Gerasimenko

“…Shortly after the arrival of Rosetta in the close vicinity of 67P/Churyumov-Gerasimenko (hereafter 67P), still at large Le Roy et al (2015); 23 Biver et al (2015); 24 Woodney (2000); 25 Weaver et al (1996) heliocentric distances (above 3 au), all of the above sulphur-bearing species were found by ROSINA (Rosetta Orbiter Spectrometer for Ion and Neutral Analysis; Balsiger et al 2007) in the coma of the Jupiter-family comet. The measurements in 67P at a distance of 3.15 au from the Sun (Le Roy et al 2015) are listed in Table 1 with two different values corresponding to the Northern (summer) and Southern (winter) hemispheres.…”

Response of six non-native invasive plant species to wildfires in the northern Rocky Mountains, USA

“…It is an early successional, slender taprooted, perennial composite (Parish andothers 1996, Whitson andothers 1996). In the northern Rocky Mountains at all elevations and habitat types, it invades disturbed areas-roadsides, fence lines, clearings, meadows, ditches, and stream banks (Meier and Weaver 1997, Morishita 1999, Parish and others 1996, Weaver and others 1990. Canada thistle does not compete well in full shade or dry, poor soils (Bayer 2000, Morishita 1999).…”

“…Expansion of prickly lettuce populations occurs through seed germination (Meier andWeaver 1997, Weaver andDowns 2003). A short-term seed bank of 1 to 3 years can develop (Weaver and Downs 2003).…”