Projects

LANDSCAPE-LEVEL ASSESSMENT AND MANAGEMENT OF INVASIVE WEEDS AND THEIR IMPACTS IN AGRICULTURAL AND NATURAL SYSTEMS Appropriated (D)   Accession Number: 421093

AQUATIC AND RIPARIAN WEED MANAGEMENT TO PROTECT U.S. WATER RESOURCES IN THE FAR WEST UNITED STATES Appropriated (D)   Accession Number: 421095

INSECTS ASSOCIATED WITH EURASIAN WATERMILFOIL Specific Cooperative Agreement (S)   Accession Number: 421989

Publications (Clicking on the reprint icon will take you to the publication reprint.)

Reducing rice field algae and cyanobacteria abundance by altering phosphorus fertilizer applications - (Peer Reviewed Journal) - (25-Apr-13)

An evaluation of flooding risks associated with giant reed (Arundo donax) - (Peer Reviewed Journal) - (11-Jan-13)

Predicting Eurasian watermilfoil's (Myriophylum spicatum L.) distribution and its likely response to biological control in a spring fed river - (Peer Reviewed Journal) - (03-Dec-12)

Influence of a non-copper algicide on the cyanobacterium, Nostoc spongiaeforme, and the green alga, Hydrodictyon reticulatum, in field and laboratory experiments - (Peer Reviewed Journal)

Spencer, D.F., Liow, P., Lembe, C.A. 2013. Influence of a non-copper algicide on the cyanobacterium, Nostoc spongiaeforme, and the green alga, Hydrodictyon reticulatum, in field and laboratory experiments. Paddy and Water Environment. 11(1):611-617.

Response of Arundo Donax to Intermittent Shading - (Peer Reviewed Journal)

Spencer, D.F. 2012. Response of Arundo Donax to Intermittent Shading. Journal of Invasive Plant Science and Management. 5:317-322.

Managing phosphorus fertilizer to reduce algae, maintain water quality, and sustain yields in water-seeded rice - (Peer Reviewed Journal)

Lundy, M.E., Spencer, D.F., Van Kessel, C., Hill, J.E., Linquist, B.A. 2012. Managing phosphorus fertilizer to reduce algae, maintain water quality, and sustain yields in water-seeded rice. Agriculture, Ecosystems and Environment. 131(2012):81-87 doi:10.1016/j.fcr.2012.03.005.

Response of Arundo Donax L. (Giant Reed) To Leaf Damage and Partial Defoliation - (Peer Reviewed Journal)

Spencer, D.F. 2012. Response of Arundo Donax L. (Giant Reed) To Leaf Damage and Partial Defoliation. Journal of Freshwater Ecology. 27:77-87. DOI:10.1080/02705060.2011.615523.

Influence of application timing on the impact of glyphosate on giant reed (Arundo donax L.) - (Peer Reviewed Journal)

Spencer, D.F., Ksander, G.G., Tan, W., Liow, P., Whitehand, L.C. 2012. Influence of application timing on the impact of glyphosate on giant reed (Arundo donax L.). Journal of Aquatic Plant Management. 49:106-110.

Does superior competitive ability explain yellow starthistle's invasion of annual grasslands? - (Peer Reviewed Journal)

Spencer, D.F., Enloe, S.F., Ksander, G.G., Liow, P., Carruthers, R.I. 2011. Does superior competitive ability explain yellow starthistle's invasion of annual grasslands?. Journal of Invasive Plant Science and Management. 4(3):284-295.

Growth response to temperature and irradiance in Nostoc spongiaeforme - (Peer Reviewed Journal)

Spencer, D.F., Liow, P., Lembi, C.A. 2011. Growth response to temperature and irradiance in Nostoc spongiaeforme. Journal of Freshwater Ecology. Vol 26 Page 357-363.

Variation in Arundo Donax Stem and Leaf Strength: Implications for Herbiovry - (Peer Reviewed Journal)

Spencer, D.F., Tan, W., Whitehand, L.C. 2010. Variation in Arundo Donax Stem and Leaf Strength: Implications for Herbiovry. Aquatic Botany. 93(2):75-82.

Competition between two submersed aquatic macrophytes, Potamogeton pectinatus and Potamogeton gramineus, across a light gradient - (Peer Reviewed Journal)

Spencer, D.F., Rejmanek, M. 2010. Competition between two submersed aquatic macrophytes, Potamogeton pectinatus and Potamogeton gramineus, across a light gradient. Aquatic Botany. 93:75-82

Pre-release assessment of impact on Arundo donax by the candidate biological control agents, Tetramesa romana (Hymenoptera: Eurytomidae) and Rhizaspidiotus donacis (Homoptera: Diaspididae) under quarantine conditions - (Peer Reviewed Journal)

Goolsby, J., Spencer, D.F., Whitehand, L.C. 2009. Pre-release assessment of impact on Arundo donax by the candidate biological control agents, Tetramesa romana (Hymenoptera: Eurytomidae) and Rhizaspidiotus donacis (Homoptera: Diaspididae) under quarantine conditions. Southwestern Entomologist. 34(4):359-376.

Evaluation of late summer imazapyr treatment for Managing Giant Reed (Arundo donax) - (Peer Reviewed Journal)

Spencer, D.F., Tan, W., Liow, P., Ksander, G.G., Whitehand, L.C. 2009. Evaluation of Late Summer Imazapyr Treatment for Managing Giant Reed (Arundo donax). Journal of Aquatic Plant Management. 47:40-43

Development and impact of biological control of giant reed, Arundo donax, in the Rio Grande Basin of the U.S. and Mexico - (Abstract Only)

Goolsby, J., Moran, P.J., Everitt, J.H., Yang, C., Contreras-Arquieta, B., Watts, D., Moore, G., Spencer, D.F., Seaqright, E., Lacewell, R. 2008. Development and impact of biological control of giant reed, Arundo donax, in the Rio Grande Basin of the U.S. and Mexico. Meeting Abstract. CDROM.

Evaluation of Glyphosate for Managing Giant Reed (Arundo donax) - (Peer Reviewed Journal)

Spencer, D.F., Tan, W., Liow, P., Ksander, G.G., Whitehand, L.C., Weaver, S., Olson, J., Newhouser, M. 2008 Evaluation of Glyphosate for Managing Giant Reed (Arundo donax). Journal of Invasive Plant Science and Management. 1:248-254

Canopy Assessment of Biochemical Features by Ground-Based Hyperspectral Data For An Invasive Species, Giant Reed (Arundo Donax) - (Peer Reviewed Journal)

Ge, S., Carruthers, R.I., Spencer, D.F., Yu, Q. 2008. Canopy Assessment of Biochemical Features by Ground-Based Hyperspectral Data For An Invasive Species, Giant Reed (Arundo Donax). Environmental Monitoring and Assessment.147:271-278

COMPARATIVE GROWTH OF GIANT REED FROM FLORIDA, TEXAS, AND CALIFORNIA - (Peer Reviewed Journal)

Spencer, D.F., Liow, P., Ksander, G.G., Stocker, R.K., Fox, A.M., Everitt, J.H., Quinn, L.D., Whitehand, L.C. 2008. Comparative growth of giant reed from Florida, Texas, and California. Journal of Aquatic Plant Management. 46:(1)89-96.

Biological Control of Saltcedar and Giant Reed in the Lower Rio Grande Basin - (Other)

Moran, P.J., Deloach Jr, C.J., Goolsby, J., Kirk, A., Everitt, J.H., Yang, C., Spencer, D.F., Pepper, A., Contreras-Arquieta, A., Nibling, F. 2007. Biological Control of Saltcedar and Giant Reed in the Lower Rio Grande Basin. Meeting Abstract. CDROM.

EVALUATION OF BARLEY STRAW AS AN ALTERNATIVE ALGAE CONTROL METHOD IN A NORTHERN CALIFORNIA RICE FIELD - (Peer Reviewed Journal)

Spencer, D.F., Lembe, C. 2007. Evaluation of barley straw as an alternative algae control method in a northern california rice field. Journal of Aquatic Plant Management. 45:84-90.

NON-DESTRUCTIVE ASSESSMENT OF ARUNDO DONAX (POACEAE) LEAF QUALITY. - (Peer Reviewed Journal)

Spencer, D.F., Sher, A., Thornby, D., Ksander, G.G. 2007. Non-destructive assessment of arundo donax (poaceae) leaf quality. Journal of Freshwater Ecology. 22(2):277-285.

Arundo Donax - giant reed; an invasive weed of the Rio Grande Basin. - (Abstract Only)

Goolsby, J., Kirk, A., Jones, W.A., Everitt, J.H., Yang, C., Spencer, D.F., Tarin, D., Nibling, F. 2007. Arundo Donax - giant reed; an invasive weed of the Rio Grande Basin.. Weed Science Society of America Meeting Proceedings. CDROM.

Mechanical Shredding of Water Hyacinth (Eichhornia crassipes): Impacts to Water Quality in the Sacramento-San Joaquin River Delta, California - (Peer Reviewed Journal)

Greenfield, B., Siemering, G., Andrews, J., Rajan, M., Andrews, S., Spencer, D.F. 2007. Mechanical Shredding of Water Hyacinth (Eichhornia crassipes): Impacts to Water Quality in the Sacramento-San Joaquin River Delta, California. Estuaries and Coasts. 30(4):627-640.

SPATIAL AND TEMPORAL VARIATION IN THE COMPOSITION AND BIOMASS OF ALGAE PRESENT IN CALIFORNIA RICE FIELDS - (Peer Reviewed Journal)

Spencer, D.F., Lembi, C., Blank, R.R. 2006. Spatial and temporal variation in the composition and biomass of algae present in California rice fields. Journal of Freshwater Ecology. 21:649-656.

EVALUATION OF WATERHYACINTH SURVIVAL AND GROWTH FOLLOWING CUTTING - (Peer Reviewed Journal)

Spencer, D.F., Ksander, G.G., Donovan, M., Liow, P., Chan, W.K., Greenfield, B.K., Shonkoff, S., Andrews, S. 2006. Evaluation of waterhyacinth survival and growth following cutting. Journal of Aquatic Plant Management. 44:50-59.

ESTIMATING ARUNDO DONAX RAMET RECRUITMENT USING DEGREE-DAY BASED EQUATIONS - (Peer Reviewed Journal)

Spencer, D.F., Ksander, G.G. 2006. Estimating arundo donax ramet recruitment using degree-day based equations. Aquatic Botany. 85:282-288.

ESTIMATING ARUNDO DONAX L. SHOOT BIOMASS - (Peer Reviewed Journal)

Spencer, D.F., Liow, P., Chan, W., Ksander, G.G. 2006. Estimating arundo donax l. shoot biomass. Aquatic Botany. 84:272-276.

SEASONAL GROWTH OF WATER HYACINTH IN THE SACRAMENTO/SAN JOAQUIN DELTA, CALIFORNIA: IMPLICATIONS FOR MANAGEMENT - (Peer Reviewed Journal)

Spencer, D.F., Ksander, G.G. 2005. Seasonal growth of water hyacinth in the Sacramento/San Joaquin Delta, California: implications for management. Journal of Aquatic Plant Management 43: 91-94.

ROOT SIZE AND DEPTH DISTRIBUTIONS FOR THREE SPECIES OF SUBMERSED AQUATIC PLANTS GROWN ALONE OR IN MIXTURES: EVIDENCE FOR NUTRIENT COMPETITION. - (Peer Reviewed Journal)

Spencer, D.F., Ksander, G.G. 2005. Root size and depth distributions for three species of submersed aquatic plants grown alone or in mixtures: evidence for nutrient competition. Journal of Freshwater Ecology. 20(1):109-116.

SPATIAL AND TEMPORAL VARIATION IN RGR AND LEAF QUALITY OF A CLONAL RIPARIAN PLANT: ARUNDO DONAX - (Peer Reviewed Journal)

Spencer, D.F., Ksander, G.G., Whitehand, L.C. 2005. Spatial and temporal variation in rgr and leaf quality of a clonal riparian plant: arundo donax. Aquatic Botany. 81:27-36.

IMPACTS OF AQUATIC WEEDS IN WATER USE AND NATURAL SYSTEMS - (Proceedings)

Spencer, D.F. 2004. Impacts of aquatic weeds in water use and natural systems. Weed Science Society of California Meeting Proceedings. 55: 32-36.

INFLUENCE OF DILUTE ACETIC ACID TREATMENTS ON SURVIVAL OF AMERICAN PONDWEED WINTER BUDS IN THE NEVADA IRRIGATION DISTRICT, CALIFORNIA - (Peer Reviewed Journal)

Spencer, D.F., Elmore, C.L., Ksander, G.G., Roncoronni, J.A. 2003. Influence of dilute acetic acid treatments on survival of american pondweed winter buds in the nevada irrigation district, california. Journal of Aquatic Plant Management. 41(2):65-68.

DO TISSUE CARBON AND NITROGEN LIMIT POPULATION GROWTH OF WEEVILS INTRODUCED TO CONTROL WATERHYACINTH AT A SITE IN THE SACRAMENTO-SAN JOAQUIN DELTA, CALIFORNIA? - (Peer Reviewed Journal)

Spencer, D.F., Ksander, G.G. 2004. Do tissue carbon and nitrogen limit population growth of weevils introduced to control waterhyacinth at a site in the sacramento-san joaquin delta, california?. Journal of Aquatic Plant Management. 42(1):45-48.

PHENOLIC ACIDS AND NUTRIENT CONTENT FOR FIVE AQUATIC MACROPHYTES FROM FALL RIVER, CALIFORNIA - (Peer Reviewed Journal) - (02-Mar-99)