Two common bee-sampling methods reflect different assemblages of the bee (Hymenoptera: Apoidea) community in mixed-grass prairie systems and are dependent on surrounding floral resource availability

2021 ◽  
Author(s):  
C. K. Pei ◽  
Torre J. Hovick ◽  
Cameron A. Duquette ◽  
Ryan F. Limb ◽  
Jason P. Harmon ◽  
...  
Keyword(s):  
Resource Availability ◽  
Sampling Methods ◽  
Mixed Grass Prairie ◽  
Mixed Grass ◽  
Floral Resource

Effects of Disturbance on Silver Sagebrush Communities in Dry Mixed-Grass Prairie

2013 ◽  
Vol 31 (3) ◽  
pp. 274-282
Author(s):  
L. K. Hickman ◽  
P. A. Desserud ◽  
B. W. Adams ◽  
C. C. Gates
Keyword(s):  
Mixed Grass Prairie ◽  
Mixed Grass

scholarly journals 179 Using a 100% Dried Distillers Grains Cube as a Supplement for Steers Grazing Mixed Grass Prairie in Oklahoma

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 46-46
Author(s):  
Zane N Grigsby ◽  
Paul A Beck ◽  
Stacey A Gunter
Keyword(s):  
Animal Health ◽  
Late Summer ◽  
Estradiol Benzoate ◽  
Positive Control ◽  
Negative Control ◽  
Early Summer ◽  
Trenbolone Acetate ◽  
Mixed Grass Prairie ◽  
Mixed Grass ◽  
Main Plot

Abstract This research was conducted to determine effects of supplementation and implanting on BW gain by steers grazing mixed grass prairie (n = 12 pastures, 19.9 ± 0.7 ha) in northwest Oklahoma. Three main plot treatments were: 1) Negative Control (NC), no supplementation, 2) Positive Control (PC), supplemented with DDGS cubes, 1.8 kg/steer on alternate days in late summer, 3) High Supplement (HS), 1/3 increase in stocking rate with 0.75% BW supplemental DDGS cubes all season. Steers (n = 125, BW = 223.1 ± 23.2 kg) were stocked at 2.2 ha/steer for PC and NC, 1.3 ha/steer for HS. Grazing was from May 17 – September 27 (132 d). All steers were implanted with 200 mg progesterone and 20 mg estradiol benzoate (SYN, Synonvex S, Zoetis Animal Health) on May 17. On July 18 three reimplant treatments were applied: 1) no reimplant; 2) SYN; or 3) 40 mg trenbolone acetate and 8 mg estradiol (Revalor G, Merck Animal Health). Data were analyzed using the PROC MIXED in SAS as a split-plot experimental design. In early summer HS had 0.26 kg greater (P < 0.01) ADG than NC and PC. Late summer gains of PC were 0.33 kg/d more (P ≤ 0.01) than NC; and HS gained 0.49 and 0.16 kg/day more (P ≤ 0.04) than NC and PC, respectively. Gain per hectare for PC (46 kg/ha) were greater (P < 0.01) than NC (35 kg/ha) and more than doubled (P < 0.01) with HS (89 kg/ha). Reimplanting had no effect on ADG (P ≥ 0.28). Late season supplementation with PC resulted in supplemental efficiency of 2.7 kg supplement/kg added gain compared with NC. Increased stocking rates with season long supplementation in HS resulted in supplemental efficiency of 3.8 kg supplement/kg added gain per hectare. Based on these data, a 100% DDGS cube is an effective supplement option to increase BW gain during the late summer or increase carrying capacity and gain during the summer grazing period in northwestern Oklahoma.

Changes in Land Use and Land Cover Along an Urban-Rural Gradient Influence Floral Resource Availability

2021 ◽  
Author(s):  
Lauren Lynch ◽  
Madeline Kangas ◽  
Nikolas Ballut ◽  
Alissa Doucet ◽  
Kristine Schoenecker ◽  
...  
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Resource Availability ◽  
Urban Rural ◽  
Floral Resource

scholarly journals Response of a mixed grass prairie to an extreme precipitation event

Ecosphere ◽  
2015 ◽  
Vol 6 (10) ◽  
pp. art172 ◽  
Author(s):  
Amy L. Concilio ◽  
Janet S. Prevéy ◽  
Peter Omasta ◽  
James O'Connor ◽  
Jesse B. Nippert ◽  
...  
Keyword(s):  
Extreme Precipitation ◽  
Extreme Precipitation Event ◽  
Precipitation Event ◽  
Mixed Grass Prairie ◽  
Mixed Grass

scholarly journals Black-Tailed Prairie Dog Effects on Montana's Mixed-Grass Prairie

2004 ◽  
Vol 57 (6) ◽  
pp. 641-648 ◽  
Author(s):  
Carolyn M. Johnson-Nistler ◽  
Bok F. Sowell ◽  
Harrie W. Sherwood ◽  
Carl L. Wambolt
Keyword(s):  
Prairie Dog ◽  
Mixed Grass Prairie ◽  
Mixed Grass

Nesting ecology and reproductive success of mixed-grass prairie songbirds

2021 ◽  
Vol 132 (4) ◽  
Author(s):  
Carolyn A. Gaudet ◽  
Eric N. Green ◽  
R. Mark Brigham ◽  
Stephen K. Davis
Keyword(s):  
Reproductive Success ◽  
Nesting Ecology ◽  
Mixed Grass Prairie ◽  
Mixed Grass

scholarly journals Environmental associations ofHesperia dacotae(Lepidoptera: Hesperiidae) in southeastern Saskatchewan, Canada

2018 ◽  
Vol 150 (5) ◽  
pp. 652-662 ◽  
Author(s):  
Kelsey M. Seidle ◽  
Eric G. Lamb ◽  
Angela Bedard-Haughn ◽  
Jean-Michel DeVink
Keyword(s):  
Conservation Status ◽  
Ground Level ◽  
Schizachyrium Scoparium ◽  
Plant Composition ◽  
Native Prairie ◽  
Mixed Grass Prairie ◽  
Mixed Grass ◽  
Steep Slopes ◽  
Soil Climate ◽  
Main Factor

AbstractThe Dakota skipper,Hesperia dacotae(Skinner, 1911) (Lepidoptera: Hesperiidae), is an at-risk butterfly that inhabits mesic mixed-grass prairie. Loss of native prairie is the main factor driving declines in Dakota skipper abundance. Currently, there is little knowledge on the environmental and habitat requirements of Saskatchewan, Canada populations. Our objective was to determine environmental associations of Dakota skipper in Saskatchewan through landscape, vegetation, soil, climate, microclimate, and Hesperiidae butterfly occupancy. Data collection was conducted in 2015 and 2016; a total of 46 sites were surveyed; nine of these were Dakota skipper positive (i.e., present) sites and 37 were negative (i.e., non-detected) sites. Results indicate that plant composition is not a significant predictor of Dakota skipper presence, but three plant species are significantly associated with the species;Pediomelum argophyllum(Pursh) Grimes (Fabaceae),Zizia aptera(Gray) Fernald (Apiaceae), andSchizachyrium scoparium(Michaux) Nash (Poaceae). No soil or climate variables were significant predictors of Dakota skipper presence; however it is significantly associated with steep slopes. Warmer maximum and average ground-level temperatures are also associated with Dakota skipper presence. Findings indicate that additional Dakota skipper populations are likely in Saskatchewan and future targeted surveys will allow for a full evaluation of the distribution of this species and conservation status.

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