Reproductive Ecology of a Native Hawaiian Grass (<i>Heteropogon contortus</i>; Poaceae) versus Its Invasive Alien Competitor (<i>Pennisetum setaceum</i>; Poaceae)

Goergen, Erin M.; Daehler, Curtis C.

doi:10.1086/319587

Cited by 57 publications

(33 citation statements)

References 41 publications

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“…Although rapid emergence has been linked with invasive success (Schlaepfer et al 2010;O'Donnell and Pigliucci 2010;Goergen and Daehler 2001), the broader implications of rapid emergence for B. tectorum are likely dependent on other environmental factors, such that in some cases it is highly undesirable. Population growth of B. tectorum is strongly sensitive to rates of seedling germination and establishment, more so than to any other life history transition (Griffith 2010).…”

Section: Emergencementioning

confidence: 99%

Variation in phenotypic plasticity for native and invasive populations of Bromus tectorum

et al. 2014

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Phenotypic plasticity is often considered important for invasive plant success, yet relatively few studies have assessed plasticity in both native and invasive populations of the same species. We examined the plastic response to temperature for Bromus tectorum populations collected from similar shrub-steppe environments in the Republics of Armenia and Georgia, where it is native, and along an invasive front in California and Nevada. Plants were grown in growth chambers in either 'warm' (30/20°C, day/night) or 'cold' (10/5°C) conditions. Invasive populations exhibited greater adaptive plasticity than natives for freezing tolerance (as measured by chlorophyll a fluorescence), such that invasive populations grown in the cold treatment exhibited the highest tolerance. Invasive populations also exhibited more rapid seedling emergence in response to warm temperatures compared to native populations. The climatic conditions of population source locations were related to emergence timing for invasive populations and to freezing tolerance across all populations combined. Plasticity in growth-related traits such as biomass, allocation, leaf length, and photosynthesis did not differ between native and invasive populations. Rather, some growth-related traits were very plastic across all populations, which may help to dampen differences in biomass in contrasting environments. Thus, invasive populations were found to be particularly plastic for some important traits such as seedling emergence and freezing tolerance, but plasticity at the species level may also be an important factor in the invasive ability of B. tectorum.

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Section: Emergencementioning

confidence: 99%

Variation in phenotypic plasticity for native and invasive populations of Bromus tectorum

et al. 2014

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“…Examples of this include aquatic predators reducing an invader's survival (Robinson & Wellborn 1988, Reusch 1998, Bishop & Peterson 2006 or competitors disproportionately occupying space (Jensen et al 2002), native plants outperforming or restricting invaders under some environmental conditions (Levine 2000, Goergen & Daehler 2001, and certain combinations of protists preventing an additional species from establishing in microcosms (Law et al 2000). To date, few of these studies have examined interactive effects of multiple species and trophic levels (e.g.…”

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 99%

Biotic resistance and facilitation of a non-native oyster on rocky shores

Ruesink¹

2007

Mar. Ecol. Prog. Ser.

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“…Previous germination studies done by Goergen and Daehler (2001) indicated that fresh seeds germinate readily and do not exhibit dormancy. Before experimentation, seeds were sorted to determine viability.…”

Section: Collection and Selection Of Seedsmentioning

confidence: 99%

“…Fountain grass is a prolific seeder with wind-dispersed seeds that do not exhibit dormancy (Goergen and Daehler 2001). These ''weedy'' attributes may impart an advantage after some disturbance such as fire or trampling by ungulates, encouraging establishment of new populations.…”

Section: Effect Of Fire/heat On Seed Germinationmentioning

confidence: 99%

“…In contrast, individual fountain grass culms regenerate rapidly, flower, and set seed within a few months after fire (Goergen and Daehler 2002). Although fountain grass may resprout from cut or burned culms, it lacks vegetative reproduction and is therefore reliant upon seeds for establishment of new individuals and population growth (Goergen and Daehler 2001).…”

mentioning

confidence: 99%

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Role of Fire in the Germination Ecology of Fountain Grass (Pennisetum setaceum), an Invasive African Bunchgrass in Hawai'i

Adkins

Cordell²,

Drake

2011

Pacific Science

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Reproductive Ecology of a Native Hawaiian Grass (Heteropogon contortus; Poaceae) versus Its Invasive Alien Competitor (Pennisetum setaceum; Poaceae)

Cited by 57 publications

References 41 publications

Variation in phenotypic plasticity for native and invasive populations of Bromus tectorum

Variation in phenotypic plasticity for native and invasive populations of Bromus tectorum

Biotic resistance and facilitation of a non-native oyster on rocky shores

Role of Fire in the Germination Ecology of Fountain Grass (Pennisetum setaceum), an Invasive African Bunchgrass in Hawai'i

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