Fire controls annual bromes in northern great plains grasslands—Up to a point

Symstad, Amy J.; Buhl, Deborah A.; Swanson, Daniel J.

doi:10.1016/j.rama.2020.11.003

Cited by 8 publications

(3 citation statements)

References 50 publications

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“…For example, in the current study, the utility of pre-fire management with indaziflam was highlighted by the pronounced flushing out of introduced short-lived forbs in burned areas that had not been sprayed versus those that had. More generally, short-lived introduced forbs show pulsed responses to wildfire in other systems, such as montane ponderosa pine forests (Abella and Fornwalt 2015), chaparral shrublands (Keeley and Brennan 2012), and perennial grasslands of the northern Great Plains (Symstad et al 2021), underscoring the management challenge of this functional group in addition to winter annual grasses.…”

Section: Discussionmentioning

confidence: 99%

Incorporation of Indaziflam into Natural Areas Management of Cheatgrass and Other Short-Lived Invasive Species: Post-Fire Assessment in a Semi-Arid Colorado Grassland

Alba,

DePrenger-Levin,

Hufft

2024

Natural Areas Journal

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Short-lived nonnative species that become invasive are major agents of change in the American West, and they may interact with fire to have compounding negative effects on ecosystem function. As public lands come under increasing stress from invader-fire interactions, managers need tools that deplete nonnative propagules at meaningful temporal and spatial scales. The pre-emergent herbicide indaziflam, which has been approved for use in natural areas, achieves multi-year control of Bromus tectorum (cheatgrass) and other short-lived nonnative species, while leaving co-occurring, established perennials largely intact. Here we explore how pre-fire management with indaziflam shapes plant community assembly post-fire. We ask whether indaziflam (1) maintains good efficacy against the target species Bromus tectorum, Bromus japonicus, and Alyssum simplex in the first growing season post-wildfire, as well as short-lived introduced species more generally; (2) exhibits nontarget effects on short-lived native species; and (3) supports recovery of long-lived native species. Indaziflam was highly effective in controlling all three target species in both burned and unburned areas, revealing its potential to break the invader-fire cycle. However, short-lived native species were also suppressed, either in burned areas only (richness), or in burned and unburned areas (percent cover). As found in other systems, indaziflam had no negative effects on long-lived native species. These findings highlight potential trade-offs in adopting indaziflam as a tool, with its use likely to be extremely effective in highly invaded systems already depauperate of native propagules, but requiring more caution and, if resources allow, attendant restoration plans (e.g., reseeding with desirable natives) in more intact natural areas.

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Section: Discussionmentioning

confidence: 99%

Incorporation of Indaziflam into Natural Areas Management of Cheatgrass and Other Short-Lived Invasive Species: Post-Fire Assessment in a Semi-Arid Colorado Grassland

Alba,

DePrenger-Levin,

Hufft

2024

Natural Areas Journal

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“…Introduced annual grasses (IAGs) represent an unprecedented threat to native perennial-dominated ecosystems of western North tumn through winter; are abundant in several rangeland ecosystems, such as sagebrush-dominated ecosystems ( Smith et al 2021 ); and have been a part of the landscape for more than a century ( Symstad et al 2021 ). Ventenata dubia typically germinates in autumn and has rapidly established in northwestern North America, invading pasturelands, croplands, grasslands, sagebrush steppe, ponderosa pine forests, and woodlands ( Wallace et al 2015 ;Averett et al 2016 ;Bernards and Morris 2017 ;Jones et al 2018 ;Downing et al 2020 ;Ridder et al 2021 ;Hart and Mealor 2021 ).…”

Section: Introductionmentioning

confidence: 99%

“…Among IAG, Bromus arvensis (Bromus japonicus), Bromus tectorum , Taeniatherum caput-medusae , and Ventenata dubia pose major concerns because of their ability to displace perennial-dominated communities, converting the native ecosystem into introduced annual-dominated communities (Knick and Rotenberry 1997; Davies 2011) and consequently altering ecological functions (DiTomaso 2000; Masters and Sheley 2001; Bradley and Mustard 2005; Simberloff 2005; Clinton et al 2010; DiTomaso et al 2010; Davies 2011). Annual bromes typically germinate in autumn through winter; are abundant in several rangeland ecosystems, such as sagebrush-dominated ecosystems (Smith et al 2021); and have been a part of the landscape for more than a century (Symstad et al 2021). Ventenata dubia typically germinates in autumn and has rapidly established in northwestern North America, invading pasturelands, croplands, grasslands, sagebrush steppe, ponderosa pine forests, and woodlands (Wallace et al 2015; Averett et al 2016; Bernards and Morris 2017; Jones et al 2018; Downing et al 2020; Ridder et al 2021; Hart and Mealor 2021).…”

Section: Introductionmentioning

confidence: 99%

Plot-Measured Variables Indicate Landscape-Scale Patterns of Annual Grass Invasion in Northwestern US Rangelands

De Stefano,

Mealor,

Jones

et al. 2024

Rangeland Ecology & Management

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Role and Management of Fire in Rangelands

Scasta,

Twidwell,

Donovan

et al. 2023

Rangeland Wildlife Ecology and Conservation

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Fire is a fundamental ecological process in rangeland ecosystems. Fire drives patterns in both abiotic and biotic ecosystem functions that maintain healthy rangelands, making it an essential tool for both rangeland and wildlife management. In North America, humanity’s relationship with fire has rapidly changed and shifted from an era of coexistence to one that attempts to minimize or eliminate its occurrence. Prior to Euro-American settlement, Indigenous people’s coexistence with fire led to regionally distinct fire regimes that differed in terms of their fire frequency, intensity, severity, seasonality, and spatial complexity. As the relative occurrence of prescribed fire and wildfire continue to change in North American rangelands, it is necessary for wildlife managers to understand the complex social-ecological interactions that shape modern fire regimes and their conservation outcomes. In this chapter, we discuss the fire eras of North American rangelands, introduce foundational relationships between fire and wildlife habitat, and discuss potential futures for fire in wildlife management.

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Fire controls annual bromes in northern great plains grasslands—Up to a point

Cited by 8 publications

References 50 publications

Incorporation of Indaziflam into Natural Areas Management of Cheatgrass and Other Short-Lived Invasive Species: Post-Fire Assessment in a Semi-Arid Colorado Grassland

Incorporation of Indaziflam into Natural Areas Management of Cheatgrass and Other Short-Lived Invasive Species: Post-Fire Assessment in a Semi-Arid Colorado Grassland

Plot-Measured Variables Indicate Landscape-Scale Patterns of Annual Grass Invasion in Northwestern US Rangelands

Role and Management of Fire in Rangelands

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