Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons™

Open Access. Powered by Scholars. Published by Universities.®

2007

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 1621 - 1650 of 6758

Full-Text Articles in Physical Sciences and Mathematics

Multiple-Species Exclusion Fencing And Technology For Mainland Sites, Tim Day, Roger Macgibbon Aug 2007

Multiple-Species Exclusion Fencing And Technology For Mainland Sites, Tim Day, Roger Macgibbon

Managing Vertebrate Invasive Species

Eradication of invasive vertebrate pests from increasingly large islands has become an important wildlife management and conservation tool internationally. Success on islands has prompted attempts to exclude and eradicate vertebrate pests from mainland sites. Early mainland exclusion efforts often failed due to ineffective or poorly maintained barriers to pest reinvasion. Over the last 10 years, we have conducted extensive experiments to design effective pest exclusion technology. We have determined the behavior and physical abilities of many of the vertebrate pest species found in New Zealand and other parts of the world. Pest species have been tested against a variety of …

Go to article

Can Temperature Be Used As A Tool For Limiting Brown Treesnake Invasion Via Transportation Pathways?, Michelle T. Christy, Julie A. Savidge, Richard Bischof, Gordon H. Rodda Aug 2007

Can Temperature Be Used As A Tool For Limiting Brown Treesnake Invasion Via Transportation Pathways?, Michelle T. Christy, Julie A. Savidge, Richard Bischof, Gordon H. Rodda

Managing Vertebrate Invasive Species

The use of extreme temperatures is one of the few chemical residue-free techniques available for control of pest species and has proven fast and effective in a variety of applications. We determined the upper and lower lethal temperatures for the brown treesnake. We also investigated whether gender, size, body condition and exposure time influenced survival at temperature extremes. Elevating snake core temperatures to 40°C and 41°C for one hour resulted in 99% mortality within seven days (40°C) and 100% mortality within one hour of exposure (41°C). Mortality decreased sharply to 51% for a one hour exposure to 39°C. Shorter, heavier …

Go to article

Invasive Species Management And Research Using Gis, Tracy Holcombe, Thomas J. Stohlgren, Catherine Jarnevich Aug 2007

Invasive Species Management And Research Using Gis, Tracy Holcombe, Thomas J. Stohlgren, Catherine Jarnevich

Managing Vertebrate Invasive Species

Geographical Information Systems (GIS) are powerful tools in the field of invasive species management. GIS can be used to create potential distribution maps for all manner of taxa, including plants, animals, and diseases. GIS also performs well in the early detection and rapid assessment of invasive species. Here, we used GIS applications to investigate species richness and invasion patterns in fish in the United States (US) at the 6-digit Hydrologic Unit Code (HUC) level. We also created maps of potential spread of the cane toad (Bufo marinus) in the southeastern US at the 8-digit HUC level using regression …

Go to article

Managing Non-Native Wildlife In Florida: State Perspective, Policy And Practice, Scott Hardin Aug 2007

Managing Non-Native Wildlife In Florida: State Perspective, Policy And Practice, Scott Hardin

Managing Vertebrate Invasive Species

Florida has more non-native wildlife species than any other state: 439 introduced species of fish, wildlife and marine organisms have been observed and at least 123 are established, i.e., highly unlikely to be extirpated without human intervention. Florida is an epicenter for non-native species with a long established pet industry, major tourist attractions, and major ports, primarily Miami. The large number of established species is due to climate match with that of popular tropical pets, habitat disturbance that facilitates invasion, and a depauperate vertebrate fauna in tropical and subtropical portions of Florida. The Florida Fish and Wildlife Conservation Commission’s approach …

Go to article

Control And Eradication Of The North American Ruddy Duck In Europe, Iain Henderson, Peter Robertson Aug 2007

Control And Eradication Of The North American Ruddy Duck In Europe, Iain Henderson, Peter Robertson

Managing Vertebrate Invasive Species

The ruddy duck (Oxyura jamaicensis) was introduced to wildfowl collections in the United Kingdom (UK) in the 1940s and subsequently escaped into the wild. Estimated numbers have increased rapidly in the UK from 20 wintering birds in 1962 to 5,946 in January 2000. As the population of feral ruddy ducks in the UK rose, so did the number of records of ruddy ducks on the European mainland. In 1984, ruddy ducks were first recorded in Spain, which is home to internationally important populations of the rare indigenous white-headed duck (Oxyura leucocephala). By 1991, hybrids resulting from …

Go to article

Custom Trucks, Radio Snake Jingles, And Temporary Tattoos: An Overview Of A Successful Public Awareness Campaign Related To Brown Treesnakes In The Commonwealth Of The Northern Mariana Islands, Nathaniel B. Hawley Aug 2007

Custom Trucks, Radio Snake Jingles, And Temporary Tattoos: An Overview Of A Successful Public Awareness Campaign Related To Brown Treesnakes In The Commonwealth Of The Northern Mariana Islands, Nathaniel B. Hawley

Managing Vertebrate Invasive Species

The brown treesnake (Boiga irregularis) was introduced on Guam during post World War II cargo movements. Brown treesnakes (BTS) have now become exceptionally abundant on Guam and pose a direct, significant, and growing threat to other areas outside of their historic range, including the Commonwealth of the Northern Mariana Islands (CNMI), the State of Hawaii, the United States mainland and other sites regionally and internationally. The CNMI is at high risk for a BTS introduction due to its close proximity and the types and amount of cargo received. Limited BTS awareness efforts between 1986 and 2002 in the …

Go to article

The Failed Regulatory System For Animal Imports Into The United States – And How To Fix It, Peter Jenkins Aug 2007

The Failed Regulatory System For Animal Imports Into The United States – And How To Fix It, Peter Jenkins

Managing Vertebrate Invasive Species

This paper provides a synopsis of the Defenders of Wildlife report entitled Broken Screens: The Regulation of Live Animal Imports in the United States, released in August 2007. That report assessed the complex federal system for regulating live wild animal imports as applied to the 2,241 non-native species that were identified in United States Fish and Wildlife Service records as being imported between 2000 and 2004, inclusive. The report describes the “coarse risk screening” conducted for those species by searching the scientific literature and United States and international databases. If one or more reliable sources indicated a species was …

Go to article

European Starlings: A Review Of An Invasive Species With Far-Reaching Impacts, George M. Linz, H. Jeffrey Homan, Shannon M. Gaulker, Linda B. Penry, William J. Bleier Aug 2007

European Starlings: A Review Of An Invasive Species With Far-Reaching Impacts, George M. Linz, H. Jeffrey Homan, Shannon M. Gaulker, Linda B. Penry, William J. Bleier

Managing Vertebrate Invasive Species

The introduction of European starlings (Sturnus vulgaris) in New York City in 1890 and 1891 resulted in their permanent establishment in North America. The successful occupation of North America (and most other continents as well) has earned the starling a nomination in the Top 100 list of ‘Worlds Worst’ invaders. Pimentel et al. (2000) estimated that starling damage to agriculture crops in the United States was $800 million yearly, based on $5/ha damage. Starlings may spread infectious diseases that sicken humans and livestock, costing nearly $800 million in health treatment costs. Lastly, starlings perhaps have contributed to the …

Go to article

Probabilistic Bioenergetic/Toxicity Modeling Approach For Estimating Toxicant Induced Mortality To Target Invasive Species And Non-Target Wildlife, John Johnston, Randal S. Stahl, H. Jeffrey Homan, George M. Linz, Will C. Pitt Aug 2007

Probabilistic Bioenergetic/Toxicity Modeling Approach For Estimating Toxicant Induced Mortality To Target Invasive Species And Non-Target Wildlife, John Johnston, Randal S. Stahl, H. Jeffrey Homan, George M. Linz, Will C. Pitt

Managing Vertebrate Invasive Species

Non-target species may be exposed to rodenticides via feeding on rodenticide baits or the carcasses of poisoned target species. As invasive species frequently negatively impact threatened or endangered (T and E) species, there is frequently spatial and temporal overlap of invasive species and T and E species. Risk assessments provide a means to estimate the probability of rodenticide associated adverse effects to non-target species (including T and E species). Quantification of risk provides critical information for decision-makers to weigh the benefits and risks of proposed rodenticide uses and to compare the risks of management with risks associated with no management …

Go to article

Research And Development Of A New Rodenticide For Nutria, Jeff J. Mach, Richard M. Poche Aug 2007

Research And Development Of A New Rodenticide For Nutria, Jeff J. Mach, Richard M. Poche

Managing Vertebrate Invasive Species

The nutria (Myocastor coypus) is a large semi-aquatic rodent, declared as one of the 100 worst invasive species in the world by the IUCN Invasive Species Specialist Group in 2000. Through USDA Small Business Innovative Research Phase I (Mach 2004) and Phase II (Mach 2006) funding, Genesis is developing a new nutria rodenticide as an alternative to the currently-registered zinc phosphide bait. Our course of research and development is described herein: live-trapping, laboratory non-toxic choice studies, laboratory toxicity bioassays, and field toxicity studies. Two active ingredients and two bait types proved to be successful, however, only cholecalciferol in …

Go to article

Global Harmonisation In The Field Of Invasive Species Management Product Development, Steven Lapidge, Simon Humphrys, David Dall Aug 2007

Global Harmonisation In The Field Of Invasive Species Management Product Development, Steven Lapidge, Simon Humphrys, David Dall

Managing Vertebrate Invasive Species

Problems associated with managing vertebrate invasive species, defined as any exotic or native species that has spread beyond its natural range, are remarkably common around the world. Although the species may differ, the niches they fill and the damage they generally cause is often consistent. As such, a possibility exists for greater collaboration and harmonization in developing new tools to manage the impacts of invasive species. Moreover, the considerable expense of developing new products, the often onerous registration process, and the lack of return on investment leading to market failure has meant that progress within the field of invasive animal …

Go to article

Spotting Cryptic Animals In The Dark: What Light Properties Should A Good Headlamp Have?, Bjorn Lardner, Julie A. Savidge, Gordon H. Rodda Aug 2007

Spotting Cryptic Animals In The Dark: What Light Properties Should A Good Headlamp Have?, Bjorn Lardner, Julie A. Savidge, Gordon H. Rodda

Managing Vertebrate Invasive Species

Relying on headlamp illumination for visual detection of cryptic nocturnal animals may present a challenge. To test how search light properties affect brown treesnake (Boiga irregularis) detection rate, we assigned eight biologists to search for dead snakes placed in roadside vegetation. Each person conducted 4 searches using lamps with varying properties: weak versus strong light, crossed by narrow versus wide beam. On each occasion, 100 snakes were placed randomly along the roadside transect. The mean number spotted per transect search was 13.5. Using an information theoretic approach, sequential order of transect runs was the only confounding variable included …

Go to article

Wildlife Contraception: Targeting The Oocyte, Richard E. Mauldin, Lowell A. Miller Aug 2007

Wildlife Contraception: Targeting The Oocyte, Richard E. Mauldin, Lowell A. Miller

Managing Vertebrate Invasive Species

The USDA’s National Wildlife Research Center (NWRC) has successfully researched and developed a number of chemical and immunologically-based wildlife contraceptives. Diazacon™ interferes with cholesterol metabolism and disrupts steroidogenesis, while nicarbazin (registered as OvoControl-P® and OvoControl-G®) disrupts the structure of the vitelline membrane of bird eggs. Immunologically-based agents act to stimulate targeted antibody production. GonaCon™ causes the host’s immune system to bind gonadotropin releasing hormone, preventing ovulation, while SpayVac™ prevents fertilization of the postovulatory oocyte. This kind of target specificity can be highly advantageous. A number of oocyte-only control contraceptive strategies are currently being researched at the NWRC. 4-Vinylcyclohexene diepoxide (VCD) …

Go to article

Eradicating House Mice From Islands: Successes, Failures And The Way Forward, James W. B. Mackay, James C. Russell, Elaine C. Murphy Aug 2007

Eradicating House Mice From Islands: Successes, Failures And The Way Forward, James W. B. Mackay, James C. Russell, Elaine C. Murphy

Managing Vertebrate Invasive Species

The house mouse (Mus musculus) has been spread throughout the world by the actions of humans. It causes severe impacts to native ecosystems, especially in areas where there are no native mammals. It is possible to eradicate mice from islands but they are harder to eradicate than rats. A review of reported eradication attempts found that 17 attempts on 45 islands worldwide failed; a failure rate of 38%. The effect of operational factors on eradication success was examined, but no significant model was formed. Brodifacoum is the most widely used toxicant and has a 49% success rate. Mouse …

Go to article

Promoting Awareness, Knowledge And Good Intentions, Christy Martin Aug 2007

Promoting Awareness, Knowledge And Good Intentions, Christy Martin

Managing Vertebrate Invasive Species

Two independent studies in the 1990s found that Hawaii had the nation’s worst alien pest problem due to gaps in prevention, detection and control programs, which could be addressed through increased communication, cooperation, and public outreach. The Coordinating Group on Alien Pest Species (CGAPS), a government/non-government partnership, formed in 1995 to address these gaps and work on public awareness. Using snakes as an example, a 1996 Hawaii statewide public awareness survey found that 66% of people “had heard of brown treesnakes.” CGAPS ran the “Silent Invasion” campaign in 1997, with “shock footage” television commercials and specials about brown treesnakes on …

Go to article

Reducing Risk And Enhancing Efficiency In Non-Native Vertebrate Removal Efforts On Islands: A 25 Year Multi-Taxa Retrospective From Santa Cruz Island, California, Scott A. Morrison Aug 2007

Reducing Risk And Enhancing Efficiency In Non-Native Vertebrate Removal Efforts On Islands: A 25 Year Multi-Taxa Retrospective From Santa Cruz Island, California, Scott A. Morrison

Managing Vertebrate Invasive Species

Effective conservation of native biodiversity on islands often requires the eradication of destructive non-native vertebrates. There are risks in conducting an eradication project, however, including the risk that the effort will fail to remove all the individuals, and the risk that the removal of the species will trigger ecological cascades with unanticipated and undesired consequences. Managers must plan to reduce such risks, and also maximize the return on investment of the limited conservation resources available for restoration programs. I discuss four vertebrate removal projects implemented on Santa Cruz Island, CA, over the past 25 years: sheep, golden eagles, pigs, and …

Go to article

An Evaluation Of Passive Thermal Fumigation For Brown Treesnake Control In Surface Transportation From Guam, Gad Perry, Daniel S. Vice Aug 2007

An Evaluation Of Passive Thermal Fumigation For Brown Treesnake Control In Surface Transportation From Guam, Gad Perry, Daniel S. Vice

Managing Vertebrate Invasive Species

The brown treesnake (BTS) has been on Guam for about 50 years and in this period has caused extensive ecological, economic, and social damage. It has also repeatedly dispersed from Guam via the transportation network, arriving at numerous locations. However, the conditions snakes face in surface shipping are unknown, making assessment of the risk of snake survival impossible. To address this, we recorded thermal conditions in surface shipments leaving Guam and identified factors that determine these conditions. We monitored 16 shipments to locations in Micronesia and the United States mainland and conducted a series of intensive studies at the Naval …

Go to article

Environmental And Economic Costs Of Vertebrate Species Invasions Into The United States, David Pimental Aug 2007

Environmental And Economic Costs Of Vertebrate Species Invasions Into The United States, David Pimental

Managing Vertebrate Invasive Species

The more than 50,000 species of plants, animals, and microbes introduced into the United States (US) cause more extinction of native species than most any other threat and cause more than $120 billion in damages and control costs each year. In particular, invasive mammals and birds cause major environmental and economic losses totaling about $46 billion per year in damage and control costs per year. Feral cats, rats, and hogs are especially serious pests. Pigeons and starlings are a major concern in cities and US agriculture. Prevention and management strategies will be discussed.

Go to article

Tree Squirrels As Invasive Species: Conservation And Management Implications, Geoffrey H. Palmer, John Koprowski, Tony Pernas Aug 2007

Tree Squirrels As Invasive Species: Conservation And Management Implications, Geoffrey H. Palmer, John Koprowski, Tony Pernas

Managing Vertebrate Invasive Species

The impact of invasive species on native biodiversity is increasing worldwide. Mammalian invaders are formidable ecological and economic threats, and tree squirrels are models of such challenges. We review the worldwide distribution of tree squirrel introductions and detail their nearly universal success. The biological characteristics of tree squirrels that enable success as invasive species are: high reproductive potential, high vagility, diverse food habits, ability to construct nests, and plasticity in human-impacted landscapes. We document costs and benefits of tree squirrel introductions, and discuss existing management strategies planned for some species. We focus on an introduced population of Mexican red-bellied squirrels …

Go to article

Using Pathway Analysis To Inform Prevention Strategies For Alien Reptiles And Amphibians, Fred Kraus Aug 2007

Using Pathway Analysis To Inform Prevention Strategies For Alien Reptiles And Amphibians, Fred Kraus

Managing Vertebrate Invasive Species

Alien reptiles and amphibians are deserving of greater attention that has hitherto been bestowed upon them by managers and researchers. Eradication or control of established taxa will generally be infeasible, leaving prevention of introductions as the primary management tool for controlling herpetological invasions. I analyzed >5,700 introductions of alien reptiles and amphibians worldwide to obtain the pathway information necessary for design of informed prevention programs. Six pathways account for the large majority of introductions: accidental introductions via cargo and the nursery plant trade and intentional introductions for biocontrol, food use, the pet trade, and aesthetic purposes. Pathway importance varies taxonomically, …

Go to article

Developing Strategy And Tools For The Local Elimination Of Multiple Pest Species, Graham Nugent, David R. Morgan, Peter Sweetapple, Bruce Warburton Aug 2007

Developing Strategy And Tools For The Local Elimination Of Multiple Pest Species, Graham Nugent, David R. Morgan, Peter Sweetapple, Bruce Warburton

Managing Vertebrate Invasive Species

Control of invasive vertebrate pests is likely to be needed in perpetuity unless their pest status changes or they are completely eradicated, both of which seem unlikely at present. This emphasizes the need for pest managers to adopt long-term strategies that are both ecologically sound and cost-effective. We suggest that a strategy for simultaneous management of multiple sympatric species of pests is preferable to a single-species approach. While present strategy involves periodic control over entire areas to achieve management aims, modelling suggests that a strategy of localised elimination followed by perimeter control offers significant cost-savings in the long term. We …

Go to article

A “Community” Approach To Invasive Species Management: Some Pacific Case Studies, Alan Saunders, Henri Blaffart, Craig Morley, Joape Kuruyawa, Vilikesa Masibalavu, Elenoa Seniloli Aug 2007

A “Community” Approach To Invasive Species Management: Some Pacific Case Studies, Alan Saunders, Henri Blaffart, Craig Morley, Joape Kuruyawa, Vilikesa Masibalavu, Elenoa Seniloli

Managing Vertebrate Invasive Species

Conservation is essentially a social activity – it is about, by and for people. Managing invasive species on islands to reduce their “community effects” (that is, effects on communities of people as well as on communities of plants and animals) makes good sense. Consequently, many demonstration projects supported as part of the Pacific Invasives Initiative involve social and economic objectives as well as biological ones. In New Caledonia, for example, dialogue between conservation agencies and local tribes about a proposed pest mammal control project on Mont Panié has been taking place for nearly 10 years. As well as being involved …

Go to article

Early Detection And Eradication Of Invading Rats, James C. Russell, Mick N. Clout, David R. Towns Aug 2007

Early Detection And Eradication Of Invading Rats, James C. Russell, Mick N. Clout, David R. Towns

Managing Vertebrate Invasive Species

Invasive rats continue to colonize rat-free islands around the world. To prevent rats from establishing on rat-free islands, especially following their eradication, biosecurity actions are required to enable early detection and elimination. Rats arrive at islands by both human transportation and by swimming. There are very little data on the rates of rat transportation by humans, although it is known that they are not negligible. There are better data on the distances rats can swim, allowing estimates to be made of the risk of reinvasion of islands close to source populations. Biosecurity prioritization must take place across all rat-free islands, …

Go to article

Dna Detection Of Foxes To Prevent Establishment In Tasmania, Stephen D. Sarre, Rachel Walsch, Niccy Aitken, Alison Foster, Nick Mooney Aug 2007

Dna Detection Of Foxes To Prevent Establishment In Tasmania, Stephen D. Sarre, Rachel Walsch, Niccy Aitken, Alison Foster, Nick Mooney

Managing Vertebrate Invasive Species

The red fox (Vulpes vulpes) has wreaked havoc on mainland Australia’s environment and agricultural production since its introduction in the 1870s. Over the same period, the southern Australian island State of Tasmania has remained virtually fox-free, allowing its unique biodiversity to remain relatively pristine. Recently, an unknown number of foxes were deliberately or accidentally introduced to Tasmania. Some of those animals and possibly their progeny now live in the wild in Tasmania. Finding foxes in a state the size of Tasmania presents special problems for wildlife managers, but is essential to prevent their establishment in this stronghold for …

Go to article

Coqui Frog Research And Management Efforts In Hawaii, Hans Sin, Adam Radford Aug 2007

Coqui Frog Research And Management Efforts In Hawaii, Hans Sin, Adam Radford

Managing Vertebrate Invasive Species

ī The coqui frog (Eleutherodactylus coqui) is native to Puerto Rico and was accidentally introduced to the State of Hawai‘i through contaminated nursery products from the Caribbean. Since its introduction in the late 1980s, coqui have become widely dispersed and in some areas population densities have reached 55,000 frogs/ha. The coqui frog is a species of concern because individual frogs can produce sound levels of 80 decibels (at 0.5 m), which has caused sleep loss to residents and affected the quality of life in Hawai‘i. Economic concerns in infested areas include diminished property values and sales, impacts on …

Go to article

International Perspective On Programs Of Invasive Vertebrate Species, Greg Sherley Aug 2007

International Perspective On Programs Of Invasive Vertebrate Species, Greg Sherley

Managing Vertebrate Invasive Species

An account of global initiatives in invasive alien species, including vertebrates, was presented based on the author’s experience and that of colleagues, mainly in the developing world. The account focused on those programs which highlight typical problems or best practice for design and which promised improvements in the future. Some of the characteristics of these programs were described and discussed. Techniques used in vertebrate control programs, especially in developing island states, were also described with a commentary on their efficacy and suitability for use. Finally, some future directions were recommended in terms of the design of in-country and regional programs …

Go to article

Managing Vertebrate Invasive Species: Proceedings Of An International Symposium, Gary W. Witmer, Will C. Pitt, Kathleen A. Fagerstone, Cynthia A. Clark Aug 2007

Managing Vertebrate Invasive Species: Proceedings Of An International Symposium, Gary W. Witmer, Will C. Pitt, Kathleen A. Fagerstone, Cynthia A. Clark

Managing Vertebrate Invasive Species

Acknowledgments:
Many people worked behind the scenes to make the symposium a success. The organizing committee would like especially thank Sue Brungardt, Patrick W. Burke, Marilyn J. Howell, Susan M. Jojola, Nicole N. Lorimer, Michael E. Pierce, John D. Eisemann, Jeanette R. O’Hare, Barbara L. Messineo, and Laurie A. Paulik for their help at the symposium. We also thank Colorado State University’s Conference Services for assisting with registration and other logistics of the symposium. We thank the staff of the Hilton Hotel, Fort Collins, for providing all the on-site needs of the symposium. We also thank Hilda Diaz-Soltero, USDA Liason …

Go to article

Developing A Decision Support System For Improving Possum Control Planning, Bruce Warburton, Jim Coleman, Mark Fuglestad, James Dietrich Aug 2007

Developing A Decision Support System For Improving Possum Control Planning, Bruce Warburton, Jim Coleman, Mark Fuglestad, James Dietrich

Managing Vertebrate Invasive Species

Brushtail possums are a major invasive pest in New Zealand. A decision support system (DSS) has been developed to enable those involved in operational planning or delivery of possum control to access available relevant knowledge when making operational decisions. The DSS comprises checklists that ensure users consider relevant constraints and issues, a database of best-practice information on possum control, and an “expert” system that recommends actions based on information provided by the user.

Go to article

Invasive Species: A National Perspective And The Need For A Coordinated Response, Lori Williams Aug 2007

Invasive Species: A National Perspective And The Need For A Coordinated Response, Lori Williams

Managing Vertebrate Invasive Species

The multiple economic, environmental, and animal and human health impacts of invasive species pose complex challenges in policy formation and governmental coordination. The National Invasive Species Council (NISC) was established by an Executive Order in 1999 to provide coordination, planning and facilitate cooperation among the diverse federal agencies and to take a more comprehensive approach to invasive species. NISC, assisted by the nonfederal Invasive Species Advisory Committee (ISAC) has developed several tools and enhanced capacities to address invasive species. Additionally, NISC has helped place greater emphasis on essential prevention, early detection and rapid response, research, public outreach, and international cooperation …

Go to article

Qcd And Spin Effects In Black Hole Air Showers, Marco Cavaglia, Arunava Roy Aug 2007

Qcd And Spin Effects In Black Hole Air Showers, Marco Cavaglia, Arunava Roy

Physics Faculty Research & Creative Works

In models with large extra dimensions, black holes may be produced in high-energy particle collisions. We revisit the physics of black hole formation in extensive air showers from ultrahigh-energy cosmic rays, focusing on collisional QCD and black hole emissivity effects. New results for rotating black holes are presented. Monte Carlo simulations show that QCD effects and black hole spin produce no observable signatures in air showers. These results further confirm that the main characteristics of black hole-induced air showers do not depend on the fine details of micro-black-hole models.

Go to article

First Prev Next Last