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Articles 1561 - 1590 of 6758
Full-Text Articles in Physical Sciences and Mathematics
Convex Comparison Inequalities For Exponential Jump-Diffusion Processes, Jean-Christophe Breton, Nicolas Privault
Convex Comparison Inequalities For Exponential Jump-Diffusion Processes, Jean-Christophe Breton, Nicolas Privault
Communications on Stochastic Analysis
No abstract provided.
Martingale Representation For Contingent Claims With Regime Switching, Robert J Elliott, Tak Kuen Siu, Hailiang Yang
Martingale Representation For Contingent Claims With Regime Switching, Robert J Elliott, Tak Kuen Siu, Hailiang Yang
Communications on Stochastic Analysis
No abstract provided.
White Noise Approach To The Itô Formula For The Stochastic Heat Equation, Alberto Lanconelli
White Noise Approach To The Itô Formula For The Stochastic Heat Equation, Alberto Lanconelli
Communications on Stochastic Analysis
No abstract provided.
Local Approximations For Branching Particle Systems, Vladimir Vinogradov
Local Approximations For Branching Particle Systems, Vladimir Vinogradov
Communications on Stochastic Analysis
No abstract provided.
Quantum Stochastic Calculus On Interacting Fock Spaces: Semimartingale Estimates And Stochastic Integral, Vitonofrio Crismale
Quantum Stochastic Calculus On Interacting Fock Spaces: Semimartingale Estimates And Stochastic Integral, Vitonofrio Crismale
Communications on Stochastic Analysis
No abstract provided.
Welcome And Opening Remarks, Richard L. Bruggers
Welcome And Opening Remarks, Richard L. Bruggers
Managing Vertebrate Invasive Species
Greetings and welcome to Fort Collins. We at the National Wildlife Research Center (NWRC) have had the privilege of organizing and hosting four international symposia since 1993. The first three were on the topics of contraception and wildlife, repellents in wildlife management, and the economics of wildlife damage management.
Today, it is my pleasure to welcome you to our fourth symposium: the International Symposium on Managing Vertebrate Invasive Species. I know our Symposium’s organizing committee has strived to bring you a diverse group of international speakers….all of whom are working on the cutting edge of invasive species research, management, and …
The Political, Economic And Management History Of A Successful Exotic Eradication: The Case Of Black-Tailed Jackrabbits In One Part Of Florida, Richard M. Engeman, Bernice Constantin, Jeffrey Bunting
The Political, Economic And Management History Of A Successful Exotic Eradication: The Case Of Black-Tailed Jackrabbits In One Part Of Florida, Richard M. Engeman, Bernice Constantin, Jeffrey Bunting
Managing Vertebrate Invasive Species
Black-tailed jackrabbits are a prolific, mobile species that became established at Miami International Airport, Florida. These animals posed a potential threat for colonization through additional parts of Florida if they were able to spread beyond the expansive airport property. Moreover, their carcasses from collisions with vehicles and aircraft attracted large scavenging and predatory birds to the airport, causing potential airstrike hazards. While the jackrabbits ultimately were successfully eradicated, the political, economic and management paths to that success were convoluted. We describe that history here and how a beneficial outcome was ultimately achieved.
Managing Starlings In Australia – Can Drc-1339 Be The Answer?, Tina Bentz, Steven Lapidge, David Dall, Ronald G. Sinclair
Managing Starlings In Australia – Can Drc-1339 Be The Answer?, Tina Bentz, Steven Lapidge, David Dall, Ronald G. Sinclair
Managing Vertebrate Invasive Species
European starlings (Sturnus vulgaris) are one of the most abundant and widespread bird species on earth. Introduced to Australia in the late 1850s, their highly adaptive ecology has enabled them to become a major pest. Concerns include public health and safety, economic impacts, detrimental environmental effects, and bird strikes at airports. Unfortunately current Australian control methods are ineffective and more efficacious, humane methods need to be developed. A feasibility study was undertaken of the likely risks/benefits of avicide DRC 1339 (3-chloro-4-methylbenzenamine hydrochloride) in Australia. This included a risk-analysis, a multi-industry survey and non-toxic bait trials to assess target-specificity. …
The Role Of Early Detection And Rapid Response In Thwarting Amphibian And Reptile Introductions In Florida, Todd S. Campbell
The Role Of Early Detection And Rapid Response In Thwarting Amphibian And Reptile Introductions In Florida, Todd S. Campbell
Managing Vertebrate Invasive Species
Prevention is the best policy for dealing with introduced species. However, biologists often spend an inordinate amount of time studying their spread and impacts rather than focusing on what should be done to thwart their establishment in the first place. Amphibian and reptile introductions are reaching epidemic proportions in Florida, largely due to irresponsible behavior by pet owners and the pet industry, but also due to ineffective preventive policies and actions. Prevention of additional amphibian and reptile introductions in Florida will require a comprehensive approach involving legal restrictions of certain problematic species, a massive public education effort, and a well-funded …
Ecology Of An Invasive Predator In Hawaii, Steven C. Hess, Heidi Hansen, Paul C. Banko
Ecology Of An Invasive Predator In Hawaii, Steven C. Hess, Heidi Hansen, Paul C. Banko
Managing Vertebrate Invasive Species
Cats (Felis catus) brought to Hawaii in the 1700s now occupy most habitats throughout the islands, including montane and sublapine zones. We studied home range, population genetics, diseases, and diet of feral cats on Hawai`i Island. Feral cats on Mauna Kea live in low densities and exhibit some of the largest reported home ranges. While 95% kernel home range estimates for 4 males ( x = 1418 ha) were nearly twice as large as 3 female home ranges ( x = 772 ha), one male maintained a home range of 2050 ha. Population genetics revealed that Mauna Kea …
Considering Control Of Invasive Barred Owls To Benefit California Spotted Owls: Possible Justification And Draft Methods, Kent B. Livezey, Richard M. Engeman, Dennis F. Rock, Donald A. Yasuda
Considering Control Of Invasive Barred Owls To Benefit California Spotted Owls: Possible Justification And Draft Methods, Kent B. Livezey, Richard M. Engeman, Dennis F. Rock, Donald A. Yasuda
Managing Vertebrate Invasive Species
Invasive, but native to North America, barred owls (Strix varia) are negatively affecting site occupancy, reproduction, and survival of federally threatened northern spotted owls (Strix occidentalis caurina), thereby confounding the land-based conservation strategy for northern spotted owls. Barred owls are moving southward into the range of non-federally listed California spotted owls (S. o. occidentalis), but are not, at this time or in the foreseeable future, a threat to the California spotted owl population. We recommend consideration of barred owl control in the northern Sierra Nevada Mountains, while barred owl numbers are low enough to …
Methods And Strategies For Managing Feral Hog Damage In Grain Production Areas In Central Texas, T. J. Muir, Gary Mcewen
Methods And Strategies For Managing Feral Hog Damage In Grain Production Areas In Central Texas, T. J. Muir, Gary Mcewen
Managing Vertebrate Invasive Species
Texas Wildlife Services (WS) personnel conduct feral hog damage management projects to protect a variety of resources in Texas. For the past 12 years, WS personnel have conducted feral hog (Sus scrofa) damage management projects on an 11,000 acre wildlife management area (WMA) and surrounding farmlands located in central Texas. The WMA is managed by the United States (US) Army Corp of Engineers and Texas Parks and Wildlife Department. Surrounding areas are farmlands and the primary crops grown there are corn and grain sorghum. Feral hogs have damaged area grain crops and the US Army Corp of Engineers …
Managing Vertebrate Invasive Species
Managing Vertebrate Invasive Species
Managing Vertebrate Invasive Species
No abstract provided.
Developing A New Toxin For Potential Control Of Feral Cats, Stoats, And Wild Dogs In New Zealand, Elain C. Murphy, Charles T. Eason, Steve Hix, Duncan Macmorran
Developing A New Toxin For Potential Control Of Feral Cats, Stoats, And Wild Dogs In New Zealand, Elain C. Murphy, Charles T. Eason, Steve Hix, Duncan Macmorran
Managing Vertebrate Invasive Species
The endemic fauna of New Zealand evolved in the absence of mammalian predators and their introduction has been responsible for many extinctions and declines. Predator control will have to be on-going if some native species are to survive on the mainland. Currently, predator control relies largely on labourintensive trapping, so the development of humane predator-specific toxins would provide valuable additional control methods. Para-aminopropiophenone (PAPP) is being investigated as a toxin for feral cats (Felis catus), stoats (Mustela erminea), and wild dogs (Canis familiaris). Carnivores appear to be much more susceptible to PAPP than birds, …
Prioritization Of Action On Non-Native Species – Progress In Great Britain, Niall Moore
Prioritization Of Action On Non-Native Species – Progress In Great Britain, Niall Moore
Managing Vertebrate Invasive Species
There is an increasing number of calls for action on a wide range of invasive non-native species, but only a limited resource to deal with them. It is clearly important for policy makers and others to be able to prioritize where these scarce resources are directed in order to maximize their conservation benefit. Coordination of effort, and knowledge sharing are clearly important as are risk assessment methods which attempt to quantify the risk posed by a range of species that are either present or are likely to invade. Great Britain, as an island, has advantages over continental landmasses in that …
Impacts Of Introduced Species On An Island Ecosystem: Non-Native Reptiles And Amphibians In The Us Virgin Islands, Renata J. Platenberg
Impacts Of Introduced Species On An Island Ecosystem: Non-Native Reptiles And Amphibians In The Us Virgin Islands, Renata J. Platenberg
Managing Vertebrate Invasive Species
Island ecosystems are highly sensitive to the impacts of introduced species. Non-native invasive snakes, lizards, and amphibians can introduce diseases into native populations and have other deleterious effects through predation, competition, and habitat manipulation. The United States (US) Virgin Islands are situated on the Puerto Rican Shelf in the Caribbean Sea and have a long history of human impacts and species introductions. Two species, the green iguana (Iguana iguana) and the red-legged tortoise (Geochelone carbonaria) were historically introduced and have become naturalized with little apparent impact to the local ecosystem. Recent years, however, have seen the …
Climate Matching As A Tool For Predicting Potential North American Spread Of Brown Treesnakes, Gordon H. Rodda, Robert N. Reed, Catherine S. Jarnevich
Climate Matching As A Tool For Predicting Potential North American Spread Of Brown Treesnakes, Gordon H. Rodda, Robert N. Reed, Catherine S. Jarnevich
Managing Vertebrate Invasive Species
Climate matching identifies extralimital destinations that could be colonized by a potential invasive species on the basis of similarity to climates found in the species’ native range. Climate is a proxy for the factors that determine whether a population will reproduce enough to offset mortality. Previous climate matching models (e.g., Genetic Algorithm for Rule-set Prediction [GARP]) for brown treesnakes (Boiga irregularis) were unsatisfactory, perhaps because the models failed to allow different combinations of climate attributes to influence a species’ range limits in different parts of the range. Therefore, we explored the climate space described by bivariate parameters of …
Flotation Materials For Aerial Delivery Of Acetaminophen Toxic Baits To Brown Treesnakes, Peter J. Savarie, Tom C. Mathies, Kathleen A. Fagerstone
Flotation Materials For Aerial Delivery Of Acetaminophen Toxic Baits To Brown Treesnakes, Peter J. Savarie, Tom C. Mathies, Kathleen A. Fagerstone
Managing Vertebrate Invasive Species
Polyvinyl chloride (PVC) tubes are effective bait stations for delivering dead neonatal mice (DNM) treated with the oral toxicant, 80 mg acetaminophen, to brown treesnakes (Boiga irregularis) in accessible jungle forest on Guam. However, PVC tubes are not practical for delivery of baits to remote areas of jungle or the forest canopy. Further, it is important that baits entangle in the canopy and not fall to the ground where they can be scavenged by non-target animals such as crabs. Data from helicopter aerial deployment of untreated DNM with radio transmitters that landed on the ground in areas of …
Population Ecology And Some Potential Impacts Of Emerging Populations Of Exotic Parrots, Douglas E. Runde, Will C. Pitt, J. T. Foster
Population Ecology And Some Potential Impacts Of Emerging Populations Of Exotic Parrots, Douglas E. Runde, Will C. Pitt, J. T. Foster
Managing Vertebrate Invasive Species
Parrots have been transported around the world since the 1400s and about 44 species have established populations outside of their native ranges. At least 70% of these introduced species were identified as potential agricultural pests, compared to only 15% of all parrot species. At least 74 exotic psittacines have been reported in the wild in the United States, but only nine species were considered established. Since 1990, 24 psittacine species have been sighted in the wild in Hawai`i, about 21 species regularly occur on the main islands and at least five appear established. Past history of successful introduction, recent status …
Habitattitude™: Getting A Backbone About The Pet Release Pathway, Jamie K. Reaser, N. Marshall Meyers
Habitattitude™: Getting A Backbone About The Pet Release Pathway, Jamie K. Reaser, N. Marshall Meyers
Managing Vertebrate Invasive Species
Many people would not consider their family complete without a pet. Unfortunately, for some pet owners, circumstances arise that prevent them from being able to properly care for their companions and pet abandonment has become one of the most common pathways of vertebrate species introduction. It is also one of the most challenging pathways to address once the animals become established, eradication and control programs face significant public scrutiny and are often challenged by “animal rights” groups. Prevention measures are thus the key to minimizing the size and impacts of the “pet release pathway.” Habitattitude™ is a proactive campaign designed …
Pest Eradication Technology – The Critical Partner To Pest Exclusion Technology: The Maungatautari Experience, Cam Speedy, Tim Day, John Innes
Pest Eradication Technology – The Critical Partner To Pest Exclusion Technology: The Maungatautari Experience, Cam Speedy, Tim Day, John Innes
Managing Vertebrate Invasive Species
Invasive pest eradication is an increasingly viable management option for conservation and wildlife managers all over the world. The list of successful rodent eradications from isolated islands continues to grow globally. Now, with the development of effective pest exclusion technologies, the opportunities for eradicating multiple species of vertebrate pests from progressively larger fragments of habitat in mainland situations are also increasing. Attempts at eradicating up to fifteen separate species of pest mammal from indigenous forest fragments protected by Xcluder™ pest proof fencing have been made on the main islands of New Zealand. These include various assemblages of multiple species of …
Monitoring The Sale And Trafficking Of Invasive Vertebrate Species Using Automated Internet Search And Surveillance Tools, Karl Suiter, Sanda Sferrazza
Monitoring The Sale And Trafficking Of Invasive Vertebrate Species Using Automated Internet Search And Surveillance Tools, Karl Suiter, Sanda Sferrazza
Managing Vertebrate Invasive Species
The internet is often an unregulated pathway that can lead to the introduction of invasive species. Surveillance of internet-related sale or trade activities can reduce the movement of potentially invasive species and serve to lessen the risk of an introduction. The Invasive Species Internet Monitoring System automates the process of searching the internet for suspect sites (e.g., internet storefronts, chat rooms, etc.) involved in the sale or trade of targeted species. Additionally, this software system incorporates data management features that permit the archiving of suspect website content, assists subject matter experts in evaluating sites for risk, send informational emails to …
Genetic Options For The Control Of Invasive Vertebrate Pests: Prospects And Constraints, Ronald E. Thresher
Genetic Options For The Control Of Invasive Vertebrate Pests: Prospects And Constraints, Ronald E. Thresher
Managing Vertebrate Invasive Species
Conventional methods for the control of invasive pests are generally effective only on small-space scales or short-time frames. For most well established pest populations, longer-term efforts to manage the problem have been largely abandoned. I examine the potential of using “autocidal” genetic techniques to control terrestrial vertebrate pests, based on the inheritance through males of transgenes that either sterilize females or convert them into functional males (“daughterless”). Simulation analysis of two high profile pest species, the cane toad (Bufo marinus) in Australia and brown rats (Rattus norvegicus) in an urban environment, using realistic parameters, suggests that …
Management Of Invasive Vertebrates In The United States: An Overview, Gary W. Witmer, Patrick W. Burke, Will C. Pitt, Michael L. Avery
Management Of Invasive Vertebrates In The United States: An Overview, Gary W. Witmer, Patrick W. Burke, Will C. Pitt, Michael L. Avery
Managing Vertebrate Invasive Species
At least 161 introduced/invasive vertebrates have become established in the United States and its territories, including at least 81 mammalian, 94 avian, and 86 reptilian/amphibian species. Particularly problematic species include feral cats and dogs; feral pigs; commensal rats and mice; starlings, pigeons, and house sparrows; and bullfrogs, brown treesnakes, and coqui frogs. We briefly review these introductions and the types of damage they cause. We review the basic types of methods used for control or eradication of each taxonomic group, including physical, chemical, biological, and cultural methods. We also discuss some of the challenges in managing these species, including issues …
Optimization And Feedback Design Of State-Constrained Parabolic Systems, Boris S. Mordukhovich
Optimization And Feedback Design Of State-Constrained Parabolic Systems, Boris S. Mordukhovich
Mathematics Research Reports
The paper is devoted to optimal control and feedback design of stateconstrained parabolic systems in uncertainty conditions. Problems of this type are among the most challenging and difficult in dynamic optimization for any kind of dynamical systems. We pay the main attention to considering linear multidimensional parabolic'systems with Dirichlet boundary controls and pointwise state constraints, while the methods developed in this study are applicable to other kinds of boundary controls and dynamical systems of the parabolic type. The feedback design problem is formulated in the minimax sense to ensure stabilization of transients within the prescribed diapason and robust stability of …
From The Editor, Susan Fingerman
Chemistry Division, A. Ben Wagner
Sla 2007 Annual Conference Session Reports
Materials Research & Manufacturing Section, Betsy Aldridge
Materials Research & Manufacturing Section, Betsy Aldridge
Sci-Tech News
No abstract provided.
Beyond The Chemistry Web, Bob Buchanan