2025 Grazing Season Update

June 25th

Hello, CARMers!

Vegetation thresholds triggered a move this week, we’ll have those weights for you in the next update.

Review the previous update.

Let’s dive into the details

Here’s the CARM allocation:

Highlights of Happenings

Station Rainfall:

	Rainfall_Total
Jun	1.84
YTD	6.68

Cumulative Rainfall (in)

Rainfall Distribution

Nicole Kaplan shared in a scientist meeting, the difference compared to Historical is such a unique view!

Station Biomass:

CPER Viewer Maps

TRM Biomass:

Short - TRM	Tall - TRM

Livestock

Crude Protein:

Crude Protein ranges in percent (%) for CARM and TRM.
Reps	Short	Tall
CARM 1 - HighHawk & Slayton	9.61- 10.1	9.94
CARM 2 - CenterCreek & PrairieRidge	9.36 - 9.52	10.6
CARM 3 - OwlCreek & SaltTree	9.3 - 9.49	9.82
TRM	9.04 - 10.93	9.11 - 10.66

701x:

We’re learning we have some coverage limitations across our station (i.e. we have cellular dead-zones), but the smart tags have a back-up satellite setting! That being said, we’re not getting as much data as expected, because they’re spending so much time in dead-zones.

CARM 1 - HighHawk & Slayton

CARM 2 - CenterCreek & PrairieRidge

CARM 3 - OwlCreek & SaltTree

Grazing Management:

CPER Viewer Longspur Habitat

Last Date Recorded

[1] "2025-06-21"

	Last_Week	This_Week	Trigger_Status
CenterCreek	589	549	No change
HighHawk	746	726	No change
OwlCreek	576	537	No change

Reminder: We had to do some extrapolation to determine where the livestock should be, due to NASA tools being down and, at that time, the calculations determined that 100% of the steers should be on the short pastures (HighHawk, CenterCreek, OwlCreek).

The table above is showing the remote-sensing values populated by NASA tools for June 14th and Jun 22nd.

	Management.Decisions
2025-06-14	Voted not to pull steers based on 6/11 data. There has been a ton of rain and Augustine, Derner, & Johnston voted to wait one week.
2025-06-21	Shift 110 steers (and 14, 701x tags) from Center Creek to Prairie Ridge; shift 97 steers (and 12, 701x tags) from Owl Creek to Salt Tree; keep High Hawk at 180 steers (100%) as biomass is close to the 750 lb/ac threshold

Last week, Augustine, Derner, and Johnston discussed the boots-on-the-ground view and voted to wait one week before moving the livestock. The table shows “No Change”, but we’re moving CenterCreek and PrairieRidge this week.

Up & Coming

28-Day Weigh June 26th
CARM Data Day Jul 1st

Desktop Field View

On behalf of the USDA-ARS Rangeland Resources and Systems Research Unit, we thank you all for your continued participation in this project.

Happy Trails,

CPER Crew