State 1
Reference State

Community 1.1
Pinyon-Juniper Woodland

Utah juniper with scattered pinyon, grasses, forbs, and shrubs.

Community 1.2
Mature Pinyon-Juniper Woodland

Pinyon and Utah juniper co-dominant, grasses, forbs, and shrubs.

Community 1.3
Perennial Shrubland with Scattered PJ

Other grasses, shrubs, and forbs. Utah juniper and pinyon scattered and starting to re-establish.

Pathway 1.1A
Community 1.1 to 1.2

wetter climate period, time without disturbance

Pathway 1.1B
Community 1.1 to 1.3

fire

Pathway 1.2A
Community 1.2 to 1.1

insect and pathogen outbreaks, drought, small scale fires

Pathway 1.2B
Community 1.2 to 1.3

fire

Pathway 1.3A
Community 1.3 to 1.1

wetter climate period, time without disturbance

State 2
Current Potential State

Community 2.1
Pinyon-Juniper Woodland

Utah juniper with scattered pinyon, grasses, forbs, and shrubs. Invasive species are present.

Community 2.2
Mature Pinyon-Juniper Woodland

Pinyon and Utah juniper co-dominant, grasses, forbs, and shrubs. Invasive species are present.

Community 2.3
Perennial Shrubland with Scattered PJ

Other grasses, forbs, and other shrubs. Utah juniper and pinyon scattered and starting to re-establish. Invasive species are present.

Pathway 2.1A
Community 2.1 to 2.2

wetter climate period, time without disturbance

Pathway 2.1B
Community 2.1 to 2.3

fire

Pathway 2.2A
Community 2.2 to 2.1

insect and pathogen outbreaks, drought, small scale fires

Pathway 2.2B
Community 2.2 to 2.3

fire

Pathway 2.3A
Community 2.3 to 2.1

wetter climate period, time without disturbance

State 3
Pinyon-Juniper Invasive State

Community 3.1
PJ Woodland with Invasive Plants

PJ, cheatgrass, other grasses, forbs, and shrubs. Dense biological crust is possible.

Community 3.2
Invasive Annuals

PJ, cheatgrass, and shrubs. Perennial grasses and forbs are sparse or absent. Dense biological crust is possible.

Pathway 3.1A
Community 3.1 to 3.2

drought, reduced fire return interval

Pathway 3.2A
Community 3.2 to 3.1

time without disturbance

State 4
Seeded State

Community 4.1
Seeded Grassland/Shrubland

Seeded grass species, other grasses, shrubs, and forbs.

Community 4.2
Seeded with PJ

seeded grass species with scattered pinyon and juniper, other grasses, shrubs, and forbs.

Pathway 4.1A
Community 4.1 to 4.2

time without disturbance

Pathway 4.2A
Community 4.2 to 4.1

vegetation manipulation, insect or pathogen outbreaks, drought

Transition T1A
State 1 to 2

establishment of non-native invasive plants

Transition T2A
State 2 to 3

reduced fire return interval, increase in invasive plants in understory, extended drought

Transition T2B
State 2 to 4

vegetation manipulation

Transition T3A
State 3 to 4

vegetation manipulation

Transition T4A
State 4 to 3

reduced fire return interval, increase in invasive plants in understory, extended drought