Download or read book Effects of Light Availability and Resource Subsidy on the Vegetative Spread of Phalaris Arundinacea L Reed Canarygrass in Wetlands written by Debbie Maurer and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Light Availability and Resourse Subsidy on the Vegetative Spread of Phalaris Arundinacea L Reed Canarygrass in Wetland written by Debbie Maurer and published by . This book was released on 2001 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Challenges of Replacing Reed Canary Grass Phalaris Arundinacea L with Native Species written by Julia C. Wilcox and published by . This book was released on 2004 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Controlling Phalaris Arundinacea Invasion in Restored Sedge Meadow Wetlands written by Laura Goodman Perry and published by . This book was released on 2001 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Herbivory on the Growth and Competitive Ability of Reed Canary Grass Phalaris Arundinacea written by Lisa A. Kratzer and published by . This book was released on with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Herbivory plays an important role in plant community structure in many ecosystems through preferential selection, plant regrowth, and seed transport. Phalaris arundinacea, reed canary grass, is a prevalent wetland invasive species consumed by geese, muskrats, and snails. We lack a clear understanding of how herbivory impacts P. arundinacea's invasion potential. Therefore, I sought to understand the effect of herbivory by generalist macrograzers and micrograzers on the competitive dominance of P. arundinacea in created wetlands, especially the degree to which herbivory alters the competitive relationship between P. arundinacea and Typha latifolia (broadleaf cattail). To address this enclosure/exclosure cages were constructed in June 2013. Half of the plots contained only P. arundinacea and half were placed along the edge between P. arundinacea and T. latifolia. In caged treatments, amber snails (Succinea putris) were either included or removed. Control plots without cages assessed the effect of larger grazers. I predicted that herbivory would negatively impact the growth of P. arundinacea, and mixed plots would allow T. latifolia to spread into the P. arundinacea zone. Choice experiments were conducted with Branta canadensis, Canada geese, and S. putris to evaluate their preference for P. arundinacea or T. latifolia. I did not find any significant differences in P. arundinacea growth due to grazing but competition with T. latifolia did impact P. arundinacea. Edge plots at RIT had a significantly reduced growth rate compared to stems from plots containing P. arundinacea only. In choice experiments, geese showed a preference for P. arundinacea over Typha, whereas snails showed no preference. Despite the observed preference, I was unable to demonstrate effects of herbivory in the field. Herbivory appears to play a minor role in P. arundinacea's success as an invasive plant in created wetlands, with other factors, such as competition for light and nutrients of potentially greater importance."--Abstract.

Download or read book Hydrolic Restoration of a Groundwater fed Sedge Meadow Wetland in South Central Wisconsin written by Michael T. Schwar and published by . This book was released on 2002 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Feasibility of Using Prescribed Burning to Control Reed Canary Grass phalaris Arundinacea L Populations in Wisconsin Wetlands written by Christina M. Reyes and published by . This book was released on 2003 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessing Cumulative Influences of Watershed scale Landuses on Reed Canarygrass Phalaris Arundinacea L Abundance written by Satomi Inahara and published by . This book was released on 2002 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The West Eugene Wetlands, Eugene, Oregon, which provide habitat for number of endemic and endangered plant species, are currently threatened by a Reed canarygrass (Phalaris arundinacea L.) invasion. This study addresses the hypothesis that Phalaris spread can be explained in part by using watershed-scale landuse patterns as surrogates of the water quality and hydrologic regime in the associated watersheds. A multiple regression model was constructed to test the effects of watershed-scale landuses on Phalaris abundance. The spatially referenced landuse attributes were estimated using accumulated inverse-squared flow path distances between each wetland and cells in a grid-based representation of landuse/cover data in a Geographic Information System. The locally measured physical and biological characteristics of wetlands were also incorporated into the model to adjust for site differences. Bias in the estimated parametric coefficients were found to be negligible using 1,000 iterations of a bootstrap re-sampling technique. Bias-corrected-and-accelerated intervals also supported the significance of these estimates. The inferential model, consisting of the percentage open water cover in the wetlands, an indicator of highly disturbed site and watershed-scale urban and forest landuses, explained 67 percent variation of Phalaris abundance. There was convincing evidence that the cumulative watershed-scale landuse patterns affected Phalaris abundance (p-value

Download or read book Long term Managed Flooding to Control Invasive Phalaris Arundinacea L and Help Restore Native Vegetation in an Urban Palustrine Wetlands Ecosystem written by and published by . This book was released on 2018 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: We sought to determine the effects of 13 years of hydrologic management on the wetland plant community in Smith and Bybee Wetlands Natural Area (SBW), an 809 ha palustrine wetland complex in north Portland, Oregon. Previous management efforts resulted in an altered hydrologic regime; historically high water levels in spring and low water levels in fall were replaced by persistent water levels with minimal annual variations. A water control structure was installed in 2003 to better approximate historic seasonal hydrologic changes to reduce invasive Phalaris arundinacea (reed canarygrass) cover and promote native wetland vegetation growth. Vegetation monitoring has been carried out in three phases since project initiation (2003-2004, 2008-2009, and 2015-2016) to assess restoration efforts. Using lineintercept and differential leveling methods, we measured 25 randomly established transects ranging from 21.5m to 280.7m (mean: 92.87m) during monitoring years for vegetation and elevation to determine changes in vegetation in relation to seasonally varying water levels. Overall, reed canarygrass percent cover has decreased from 46.5% in 2003 to 17.6% in 2016 across all transect elevations. Reed canarygrass has been replaced significantly by seven native plant species with ≥ 5% cover on site. Native Persicaria amphibia (smartweed) has replaced reed canarygrass as the dominant species on site, increasing in cover from 20.2% in 2003 to 67.9% in 2016. Smartweed also replaced all other common species on site except for Salix lucida lasiandra. Other common native species (Bidens cernua, Eragrostis hypnoides, Eleocharis palustris, and Cyperus sp.) experienced earlier declines in cover between 2003 and 2009, but have since increased in cover primarily in low transect elevations in relation to lower inundation rates during their early growing seasons. Species diversity has declined significantly since 2003. Diversity was inversly correlated with reed canarygrass presence in 2003. These findings demonstrate that hydrologic management of a wetland system can be effective at reducing the presence of reed canarygrass and increasing native wetland vegetation by recreating historic hydrologic conditions that include increased inundation during the early growing season of reed canarygrass. Initial long inundation periods were most effective at reducing reed canarygrass, but did not need to be maintained indefinitely. Shortening and varying the inundation periods in later years after reed canarygrass has been reduced can be effective at maintaining lower levels of reed canarygrass while simultaneously increasing native species cover.

Download or read book Invasive Reed Canary Grass phalaris Arundinacea and Carbon Sequestration in a Wetland Complex written by Jonathan S. Bills and published by . This book was released on 2008 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Terrestrial carbon sequestration is one of several proposed strategies to reduce the rate of carbon dioxide (CO2) accumulation in the atmosphere, but the impact of plant invasion on soil organic carbon (SOC) storage is unclear. The results of past studies are often confounded by differences in vegetation and environmental conditions. Reed canary grass (Phalaris arundinacea) is an herbaceous species that invades riparian fringes and wetlands throughout North America, including Beanblossom Bottoms - a wetland complex in south-central Indiana. Because of the prolific growth of P. arundinacea, it was hypothesized that significant alterations in SOC pools and dynamics would occur at invaded sites within the wetland complex. To test this hypothesis, study plots were established in areas colonized either by native herbaceous species or by P. arundinacea. Above and below-ground biomass were collected at the middle and end of the growing season and were analyzed for cellulose, lignin, acid detergent fiber, total phenolics, and organic carbon and nitrogen concentration. Soil samples were analyzed for SOC and nitrogen, bulk density, pH, and texture. The biomass of Scirpus cyperinus - a native wetland species was found to contain significantly (P

Download or read book First Season Effects of Managed Flooding on the Invasive Species Phalaris Arundinacea L and Shoreline Vegetation Communities in an Urban Wetland written by Noah John Jenkins and published by . This book was released on 2005 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors that Influence Dominance by Reed Canary Grass phalaris Arundinacea L in Wet Meadows written by Suzanne Marie Kercher and published by . This book was released on 2003 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Biology and Control of Reed Canarygrass Phalaris Arundinacea L on Irrigation Ditchbanks written by Richard Durward Comes and published by . This book was released on 1971 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reed canarygrass (Phalaris arundinacea L.) is a desirable pasture grass on wet areas in the Northern United States and Southern Canada, but it is a serious and troublesome ditchbank weed in the Pacific Northwest and Rocky Mountain States. The purpose of this study was to learn more about the development, growth habits, and control of reed canarygrass on irrigation ditchbanks. Ninety-seven percent or more of the seed of this species germinated ediately after harvest under favorable conditions. Seeds stored in damp sand at constant temperatures of 1 and 23C for periods of time up to one year did not germinate until they were subjected to alternating temperatures of 20 and 30C. The first rhizome development on reed canarygrass seedlings grown in the greenhouse was observed 26 days after emergence. Within 16 weeks after emergence, the plants were in bloom and had 48 short rhizomes (6.5 cm maximum) per plant. In the field, 88 percent or more of the emergent: shoots on established plants originated from rhizome or tiller buds located in the upper 5 cm of soil. Some shoots developed from buds located at depths up to 20 cm, but none arose from a greater depth. Several vegetative characteristics of reed canarygrass plants collected from six irrigation projects in four states differed widely when grown in a garden at Prosser, Washington. The plant height, seed weights, panicle length, leaf length, leaf width, number of stems per plant, stem diameter, and the rate of spread by rhizomes were statistically different at the 5% level of probability. Large differences in the color and posture of the leaves were also observed. Plants collected near Huntley, Montana, were the most vigorous. Total available carbohydrates in the roots and rhizomes of established reed canarygrass were not affected by single applications of 2,2,dichloropropionic acid (dalapon) at 22 kg/ha, 3-amino-s-triazoleammonium thiocyanate (amitrole-T) at 4.5 kg/ha, or 1,1i-dimethy1-4,4'- bipyridinium ion (paraquat) at 1.1 kg/ha until 2 months after treatments were applied in May. By October, single applications of dalapon and amitrole-T and five repeated applications of paraquat reduced the carbohydrates 24, 28, and 50 percent, respectively. Two additional treatments of dalapon or amitrole-T or five additional treatments of paraquat in the second year of the study did not reduce the carbohydrate levels below those present during the first year. Dalapon and trichloroacetic acid (TCA), applied to the soil or to the senescent foliage in November at rates from 22 to 88 kg/ha, provided good to excellent temporary control of reed canarygrass without denuding ditchbanks. Redtop (Avostis alba L.) and reed canarygrass seedlings developed on the treated areas the following summer and reed canarygrass retained the dominant position unless the seedlings and plants that escaped the fall treatment were controlled with post-emergence applications of dalapon or amitrole-T. When the latter plants were controlled, redtop developed from natural or artificial seeding of the ditchbank and became the dominant species. Maximum residue levels of TCA in irrigation water ranged from 104 to 225 ppb following fall applications of TCA at 82 kg/ha to both banks of three irrigation laterals that ranged from 4 to 14.5 kilometers long. Average residue levels at the downstream ends of the laterals during the first four hours that water flowed through them in the spring ranged from 34 to 47 ppb. Eight hours after the initial flow of water through laterals 4, 8.4, and 14.5 kilometers long, residue levels were less than 1 ppb in the two shortest laterals and only 2.7 ppb in the longest lateral. No residues were detectable in the water from any of the laterals after 48 hours.

Download or read book Responses of an Invasive Grass Phalaris Arundinacea to Excess Resources written by Andrea M. Herr-Turoff and published by . This book was released on 2005 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Restoration of Agricultural Wetlands Invaded by Phalaris Arundinacea reed Canary Grass written by Ellen E. Hamingson and published by . This book was released on 2007 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Using Landsat 7 Imagery to Map Invasive Reed Canary Grass Phalaris Arundinacea written by Thomas W. Bernthal and published by . This book was released on 2004 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Reed Canarygrass Phalaris Arundinacea Control Within Wetland W Q Cordata Business Park Washington written by and published by . This book was released on 1996 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: