Gordon Rodda - USGS

Invasive Species Science

Research Zoologist

Duty Station:
Fort Collins Science Center
2150 Centre Ave
Bldg C
Fort Collins, CO 80525

Phone: 970-226-9471
Fax: 970.226.9230
Email: roddag@usgs.gov

Current Research

• Control and Containment of the Brown Treesnake and Other Invasive Reptiles
• Research on Introduced Florida Snakes

Products

Publications

Total Records:64

• What parts of the US mainland are climatically suitable for invasive alien pythons spreading from Everglades National Park?
• Evaluation of trap capture in a geographically closed population of brown treesnakes on Guam
• Evaluating abundance estimate precision and the assumptions of a count-based index for small mammals
• Distribution, density, and biomass of introduced small mammals in the southern Mariana Islands
• Climate change: The science of impacts
• Post-colonization reversal of selection pressure on dispersal behavior of the Brown Treesnake, Boiga irregularis, on Guam
• Thermal and energetic constraints on ectotherm abundance: a global test using lizards
• Recent records of alien anurans on the Pacific island of Guam
• Biology and impacts of Pacific Island Invasive Species. 2. Boiga irregularis, the Brown Tree Snake (Reptilia: Colubridae)
• Reproductive biology of the brown tree snake, Boiga irregularis (Reptilia: Colubridae), during colonization of Guam and comparison with that in their native range
• Multiple pathways for invasion of anurans on a Pacific island
• Response of brown treesnakes to reduction of their rodent prey
• Emoia atrocostata (Littoral skink)
• New developments in snake barrier technology: Fly-ash covered wall offers a feasible alternative for permanent barriers to Brown Treesnake (Boiga irregularis)
• Size bias in visual searches and trapping of Brown Treesnakes on Guam
• Climate matching as a tool for predicting potential North American spread of Brown Treesnakes
• Spotting cryptic animals in the dark: What light properties should a good headlamp have?
• Size-based trends and management implications of microhabitat utilization by Brown Treesnakes, with an emphasis on juvenile snakes
• The Brown Treesnake Rapid Response Team
• Can temperature be used as a tool for limiting Brown Treesnake invasion via transportation pathways?
• Evaluation of harmonic direction-finding systems for detecting locomotor activity
• Introduced rodent and shrew densities and distributions in the Mariana Islands: implications for Brown Treesnake control and management
• Partnerships for Science: A “Virtual” Institute for Invasive Species Research and Management
• The predictive power of visual searching
• Glueboards for estimating lizard abundance
• Effectiveness of methyl bromide as a cargo fumigant for brown treesnakes
• Biology and reproduction of Iguana iguana in the wild
• Practical concerns in the eradication of island snakes
• Distance sampling of forest snakes and lizards
• Excess density compensation of island herpetofaunal assemblages
• A high validity census technique for herpetofaunal assemblages
• New lizard records for the Mariana Islands
• The densest terrestrial vertebrate
• Sphaerodactylus macrolepis macrolepis (Big Scale Dwarf Gecko)
• Problem snake management: The Habu and the Brown Tree Snake
• A state-of-the-art trap for the brown treesnake [Chapter 20]
• The feasibility of controlling the brown treesnake in small plots [Chapter 39]
• Population Trends and Limiting Factors in Boiga irregularis [Chapter 17]
• Epilogue: Contributions of brown treesnakes and habu to science and society
• Snake management
• An overview of the biology of the brown treesnake (Boiga irregularis), a costly introduced pest on Pacific islands [Chapter 2]
• An integrated management plan for the brown treesnake (Boiga irregularis) on Pacific islands [Chapter 35]
• The effectiveness of snake traps worldwide
• The lizard fauna of Guam's fringing islets: Island biogeography, phylogenetic history, and conservation implications
• Managing island biotas: Brown treesnake control using barrier technology
• Managing island biotas: Can indigenous species be protected from introduced predators such as the brown treesnake?
• The role of introduced species in the degradation of island ecosystems: A case history of Guam
• Alien snake threatens Pacific Islands
• The disappearance of Guam's wildlife: new insights for herpetology, evolutionary ecology, and conservation
• Invasions of the Brown Tree Snake
• Identification of sex in Boiga irregularis: Implications for understanding population dynamics in Guam
• Adhesive trapping II
• How to lie with biodiversity
• Where's Waldo (and the snakes)?
• The mating behavior of Iguana iguana
• The impact of the introduction of the Brown Tree Snake, Boiga irregularis, on Guam's lizards
• Trapping the arboreal snake Boiga irregularis
• Origin and Population Growth of the Brown Tree Snake, Boiga irregularis, on Guam
• Sampling techniques for an arboreal snake, Boiga irregularis
• The distributional patterns of reptiles and amphibians in the Mariana Islands
• Abundance and habitat use of reptiles on Rota, Mariana Islands
• The Nesting Behavior of the Green Iguana, Iguana iguana, in the Llanos of Venezuela
• The brown tree snake, an introduced pest species in the central Pacific Islands
• Feeding habitat use by colonially-breeding herons, egrets, and ibises in North Carolina