Twelve invasive plant taxa in US western riparian ecosystems

Ringold, Paul L.; Magee, Teresa K.; Peck, David V.

doi:10.1899/07-154.1

Cited by 45 publications

(38 citation statements)

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Like R. armeniacus, these species grow clonally as erect shrubs, and frequently colonize cut areas, forest understories, gaps, and edges, and are considered weedy in the context of silviculture (Oleskevich et al 1996). Research in Pacific Northwest riparian areas suggested that R. spectabilis and R. parviflorus are being displaced by R. armeniacus (Fierke and Kauffman 2006); one study estimated that R. armeniacus occurs along 32% of California's and 21% of Oregon's perennial streams (Ringold et al 2008). We selected congeneric species to control for major differences in physiology, morphology, and phenology that might have affected the water relations parameters that we investigated.…”

Section: Species and Site Selectionmentioning

confidence: 99%

Water relations advantages for invasive Rubus armeniacus over two native ruderal congeners

Caplan

Yeakley

2010

Plant Ecol

View full text Add to dashboard Cite

Despite species in the Rubus fruticosus complex (wild blackberry) being among the most invasive plants globally in regions with large annual fluctuations in water availability, little is known about their water relations. We compared water relations of a prominent member of the complex, R. armeniacus (Himalayan blackberry), with species native to the Pacific Northwest of North America (PNW), R. spectabilis (salmonberry) and R. parviflorus (thimbleberry). In eight stands of each species located near Portland, Oregon, USA, we measured mid-day hydraulic resistance (R plant ), and daily time series of stomatal conductance (g s ), leaf water potential (W lf ), and environmental conditions at four time periods spanning the 2007 growing season. Although all species maintained W lf above -0.5 MPa in spring, R. armeniacus maintained less negative W lf (C-1.0 MPa) than the natives in summer, a factor attributable to advantages in both its root and shoot systems. R plant of R. armeniacus was B0.1 MPa mmol -1 m 2 s for the duration of the study, and approximately 25-50% of R plant for the native species in summer. R. armeniacus had higher g s compared to the native species throughout the spring and summer, with approximately twice their rates in summer. Our R plant and g s results show that R. armeniacus has access to more water during PNW summers than congeneric natives, allowing it to maintain high water-use, and potentially helping it achieve higher growth and reproductive rates. Water relations may therefore be a critical component of the competitive and invasive success of R. armeniacus and other R. fruticosus species worldwide.

show abstract

Section: Species and Site Selectionmentioning

confidence: 99%

Water relations advantages for invasive Rubus armeniacus over two native ruderal congeners

Caplan

Yeakley

2010

Plant Ecol

View full text Add to dashboard Cite

show abstract

“…; also known as tamarisk) and Russian olive (Elaeagnus angustifolia) are introduced plants that are now frequent and abundant components of the woody riparian vegetation along many western United States of America (U.S.) rivers Ringold et al, 2008). Management strategies for dealing with these two species require knowledge of their distribution (extent of spread), their abundance in different ecosystems, and the ecological conditions that favor or hinder their spread or persistence.…”

Section: Introductionmentioning

confidence: 99%

“…In the 1930s, they escaped cultivation and spread rapidly along major western U.S. river systems (Robinson, 1965). They are now distributed widely in western U.S. riparian corridors Ringold et al, 2008), irrigation districts (Harrison and Matson, 2003;Cornell et al, 2008), reservoir margins Smith, 2003, 2007), coastal salt marshes (Whitcraft et al, 2007), and other habitats with moist soils or shallow groundwater. They are halophytes and, as such, are frequently found in saline habitats .…”

Section: History Of Introduction Planting Andmentioning

confidence: 99%

Distribution and Abundance of Saltcedar and Russian Olive in the Western United States

Nagler

Glenn

Jarnevich

et al. 2011

Critical Reviews in Plant Sciences

View full text Add to dashboard Cite

“…In the case of Ivy (Hedera helix L.), the most abundant liana in temperate forests of Europe (and a key invader in North America, e.g. Biggerstaff and Beck 2007;Ringold et al 2008), many of the adverse influences on trees attributed to lianas do not apply. Ivy is neither particularly aggressive, nor does it overgrow healthy tree crowns, but usually remains in the subcanopy (Mitchell 1975).…”

Section: Introductionmentioning

confidence: 99%

Water relations of climbing ivy in a temperate forest

Leuzinger

Hartmann

Körner

2011

Planta

View full text Add to dashboard Cite

Ivy (Hedera helix) is the most important liana in temperate European forests. We studied water relations of adult ivy in a natural, 35 m tall mixed deciduous forest in Switzerland using a construction crane to access the canopy. Predawn leaf water potential at the top of climbing ivy ranged from -0.4 to -0.6 MPa, daily minima ranged from -1.3 to -1.7 MPa. Leaf water potentials as well as relative sap flow were held surprisingly constant throughout different weather conditions, suggesting a tendency to isohydric behaviour. Maximum stomatal conductance was 200 mmol m -2 s -1 . The use of a potometer experiment allowed us to measure absolute transpiration rates integrated over a whole plant of 0.23 mmol m -2 s -1 . Nightly sap flow of ivy during warm, dry nights accounted for up to 20% of the seasonal maximum. Maximum sap flow rates were reached at ca. 0.5 kPa vpd. On the other hand, the host trees showed a less conservative stomatal regulation, maximum sap flow rates were reached at vpd values of ca. 1 kPa. Sap flow rates of ivy decreased by ca. 20% in spring after bud break of trees, suggesting that ivy profits strongly from warm sunny days in early spring before budbreak of the host trees and from mild winter days. This species may benefit from rising winter temperatures in Europe and thus become a stronger competitor against its host trees.

show abstract

Twelve invasive plant taxa in US western riparian ecosystems

Cited by 45 publications

References 77 publications

Water relations advantages for invasive Rubus armeniacus over two native ruderal congeners

Water relations advantages for invasive Rubus armeniacus over two native ruderal congeners

Distribution and Abundance of Saltcedar and Russian Olive in the Western United States

Water relations of climbing ivy in a temperate forest

Contact Info

Product

Resources

About