Database

The purpose of this study was to asses how small mammals affect plant composition, plant production, seed production, and soil nutrient levels. Twelve sites have been selected to span a broad range of conditions typical of California rangelands. At each site, we have established two 4m x 4m plots. The control plot excludes only sheep, while the exclosure plot is fenced both below- and above-ground to exclude both sheep and small mammals (the primary granivores). Throughout the growing season, we are tracking plant and litter biomass, seed production, and soil nutrients.

Site	Floristic Province	Ecosystem	Management Goals	County
bartolome east control	North coast	Grassland		Mendocino
bartolome east exclosure	North coast	Grassland		Mendocino
bartolome west control	North coast	Grassland		Mendocino
bartolome west exclosure	North coast	Grassland		Mendocino
huntley peak exclosure	North coast	Grassland		Mendocino
huntly peak control	North coast	Grassland		Mendocino
lambing lower control	North coast	Grassland		Mendocino
lambing lower exclosure	North coast	Grassland		Mendocino
lambing upper control	North coast	Grassland		Mendocino
lambing upper exclosure	North coast	Grassland		Mendocino
middle pasture control	North coast	Grassland		Mendocino
middle pasture exclosure	North coast	Grassland		Mendocino
riley ridge east control	North coast	Grassland		Mendocino
riley ridge east exclosure	North coast	Grassland		Mendocino
riley ridge west control	North coast	Grassland		Mendocino
riley ridge west exclosure	North coast	Grassland		Mendocino
vassar corner control	North coast	Grassland		Mendocino
vassar corner exclosure	North coast	Grassland		Mendocino
vassar east control	North coast	Grassland		Mendocino
vassar east exclosure	North coast	Grassland		Mendocino
vassar west control	North coast	Grassland		Mendocino
vassar west exclosure	North coast	Grassland		Mendocino
water tank control	North coast	Grassland		Mendocino
water tank exclosure	North coast	Grassland		Mendocino

Can organic herbicides be used to control yellow starthistle in a matrix of grasses? Noxious late-season weeds such as yellow starthistle are a key management challenge in California's grasslands and rangelands-- decreasing plant diversity, and livestock productivity. Because these late-season species remain stunted into mid-spring (when other grassland species are at their peak growth), they are potentially susceptible to organic herbicides (which are most effective in killing plants less than 6 inches tall who have yet to go through their most active growth). We compared controls (no herbicides) to conventional treatment of yellow starthistle (Transline) with two organic herbicides (Avenger and Suppress). These were applied at 3 time points: - early spring (early March) when naturalized annual grass is at its peak growth rate, but yellow starthistle is still a rosette and has minimal aboveground growth - mid spring (mid-April) when yellow starthistle is still at the rosette stage These first 2 time points were meant to kill yellow starthistle before flowering - peak flowering of yellow starthistle (late June) - intended to kill all developing seeds

Site	Floristic Province	Ecosystem	Management Goals	County
Putah Creek Levee, Putah Creek Reserve	Sacramento Valley	Grassland

The purpose of this project was to assess how restoration of native grasses into exotic-dominated grasslands alter multiple ecosystem services and soil characteristics. At each site, three locations were sampled within the restored site (at each location, separate samples were taken underneath vs. inbetween bunchgrasses), and 3 samples were taken at an adjacent unrestored site (similar in slope, aspect, soil type, etc. to the restored site)

Site	Floristic Province	Ecosystem	Management Goals	County
1 exotic - name	Sacramento Valley	Grassland		Yolo
1 native - name	Sacramento Valley	Grassland		Yolo
10 exotic - name	Sacramento Valley	Grassland		Yolo
10 native - name	Sacramento Valley	Grassland		Yolo
2 exotic - name	Sacramento Valley	Grassland		Yolo
2 native - name	Sacramento Valley	Grassland		Yolo
3 exotic - name	Sacramento Valley	Grassland		Yolo
3 native - name	Sacramento Valley	Grassland		Yolo
4 exotic - name	Sacramento Valley	Grassland		Yolo
4 native - name	Sacramento Valley	Grassland		Yolo
5 exotic - name	Sacramento Valley	Grassland		Yolo
5 native - name	Sacramento Valley	Grassland		Yolo
6 exotic - name	Sacramento Valley	Grassland		Yolo
6 native - name	Sacramento Valley	Grassland		Yolo
7 exotic - name	Sacramento Valley	Grassland		Solano
7 native - name	Sacramento Valley	Grassland		Solano
8 exotic - name	Sacramento Valley	Grassland		Solano
8 native - name	Sacramento Valley	Grassland		Solano
9 exotic - name	Sacramento Valley	Grassland		Solano
9 native - name	Sacramento Valley	Grassland		Solano

Native grassland restoration on former agricultural field

Grassland restoration on former agricultural land