Journal Article Repository
Supplemental Figures and Tables for:
Ansley et al. 2021. Herbaceous production and soil nitrogen after mesquite mortality in Southern Great Plains (USA) grassland. Rangeland Ecology and Management.
Figure S1. The Southern Great Plains (SGP) is defined in this paper (red outline) as the 368,000 km2 southern portion (latitude 31-38º N, longitude 96-104º W), or 65 % of the 569,420 km2 Central Great Plains Region of the USA (31-41º N latitude; USDA-NRCS, 2006, page 195). Distance scale is redrawn and applies to the larger map. Locations where most Prosopis soil nutrient research has been conducted in the USA and northern Mexico are shown as red dots in the inset map [southern Texas, USA (Geesing et al., 2000; McCulley et al., 2004; Boutton and Liao, 2010; Arizona, USA, Prosopis velutina (Tiedemann and Klemmedson, 1986; Wheeler et al., 2007); northern Mexico (Herrera-Arreola et al., 2007)]. The research location in the SGP in this paper is shown as a white dot in both maps.
Table S2. Mesquite herbicide treatment mixtures applied via helicopter on July 10, 2014 in the 4 blocks. Conditions during spraying (6:30-7:30 am): air temperature 26.1O C; relative humidity 50-56%; wind speed 0.9-1.8 m . s -1; soil temperature 28.9 oC. Total spray volume (chemical +water) in each treatment was 46.76 l . ha -1.
| Block | Herbicide Mix | Commercial Name¹ |
|---|---|---|
| 1 and 2 | clopyralid (0.32 l . ha⁻¹) | Reclaim + Remedy |
| triclopyr (0.35 l . ha⁻¹) | ||
| 3 | clopyralid (0.63 l . ha⁻¹) | Sendero + Remedy |
| triclopyr (0.35 l . ha⁻¹) | ||
| aminopyralid (0.12 l . ha⁻¹) | ||
| 4 | clopyralid (0.63 l . ha⁻¹) | Sendero |
| aminopyralid (0.12 l . ha⁻¹) |
1/Commercial names of products from Corteva (formerly Dow AgroSciences).
Table S3. Species in each functional group frequency of occurrence in 192 clip quadrats (CS = cool season, WS = warm season; SU = season unknown. Forb seasonality determined from Hatch and Pluhar, 1993; Linex, 2014; Stubbendieck et al., 2019; and USDA-NRCS, 2020.
| Functional Group (FG) | Species Name | Common Name | Freq. Occur. Species |
% Occur. Species |
Species per FG |
Freq. Occur. FG |
% Occur. FG |
|---|---|---|---|---|---|---|---|
| C3 Mid-grass | Nassella leucotricha | Texas wintergrass | 142 | 74.0 | 1 | 142 | 74.0 |
| C3 Annual Grass | Hordeum pusillum | Little barley | 23 | 12.0 | 4 | 36 | 18.8 |
| Bromus japonicus | Japanese brome | 7 | 3.6 | ||||
| Bromus unioloides | Rescuegrass | 4 | 2.1 | ||||
| Vulpia octoflora | Six-weeks fescue | 2 | 1.0 | ||||
| C4 Short-grass | Buchloe dactyloides | Buffalograss | 32 | 16.7 | 5 | 63 | 32.8 |
| Hilaria belangeri | Curly mesquite | 21 | 10.9 | ||||
| Bouteloua hirsuta | Hairy grama | 6 | 3.1 | ||||
| Bouteloua gracilis | Blue grama | 3 | 1.6 | ||||
| Chloris verticulata | Tumble windmill grass | 1 | 0.5 | ||||
| C4 Mid-grass | Hopia obtusa | Vine mesquite | 12 | 6.3 | 6 | 32 | 16.7 |
| Sporobolus cryptandrus | Sand dropseed | 11 | 5.7 | ||||
| Bouteloua curtipendula | Sideoats grama | 6 | 3.1 | ||||
| Bothriochloa laguroides | Silver bluestem | 1 | 0.5 | ||||
| Sporobolus compositus | Meadow dropseed | 1 | 0.5 | ||||
| Digitaria californica | Arizona cottontop | 1 | 0.5 | ||||
| Perennial Forb | Oxalis stricta | Yellow wood sorrell | 38 | 19.8 | 7 | 71 | 37.0 |
| Ambrosia psilostachya | Western ragweed | 16 | 8.3 | ||||
| Solanum elaeagnifolium | Silverleaf nightshade | 11 | 5.7 | ||||
| Chamaesaracha sordida | Hairy five eyes | 2 | 1.0 | ||||
| Physalis longifolia | Groundcherry | 2 | 1.0 | ||||
| Argythamnia humilis | Wild mercury | 1 | 0.5 | ||||
| Krameria lanceolata | Trailing ratany | 1 | 0.5 | ||||
| Annual Forb CS | Plantago patagonica | Wooly plantain | 20 | 10.4 | 7 | 45 | 23.4 |
| Lepidium densiflorum | Pepperweed | 16 | 8.3 | ||||
| Plantago patagonica | Redseed plantain | 2 | 1.0 | ||||
| Lesquerella gordonii | Bladderpod | 2 | 1.0 | ||||
| Verbena bracteata | Prostrate vervain | 2 | 1.0 | ||||
| Erodium texanum | Texas filaree | 2 | 1.0 | ||||
| Stellaria media | Common chickweed | 1 | 0.5 | ||||
| Annual Forb WS | Amphiachyris dracunculoides | Annual broomweed | 44 | 22.9 | 6 | 78 | 40.6 |
| Conyza canadensis | Marestail | 28 | 14.6 | ||||
| Croton texensis | Texas croton | 2 | 1.0 | ||||
| Parthenium hysterophorus | Ragweed parthenium | 2 | 1.0 | ||||
| Chenopodium album | Lambsquarters | 1 | 0.5 | ||||
| Euphorbia dentata | Toothed spurge | 1 | 0.5 | ||||
| Annual Forb SU | Chaerophyllum tainturieri | Hairyfruit chervil | 1 | 0.5 | 1 | 1 | 0.5 |
| Totals | 468 | 37 | 468 | ||||
| Total Quadrats | 192 | ||||||
| Average Species/Quadrat | 2.4 |
References
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