Author: Richard L. ClawsonPublisher:
ISBN:
Category : Bats
Languages : en
Pages : 30
Book Description
A Determination of the Source and Effects of Pesticide Poisoning of Gray Bats in Boone County, Missouri
Author: Richard L. ClawsonPublisher:
ISBN:
Category : Bats
Languages : en
Pages : 30
Book Description
Bats and Environmental Contaminants
Author: Donald R. ClarkPublisher:
ISBN:
Category : Bats
Languages : en
Pages : 36
Book Description
People have applied organochlorine insecticides to bats or their roosts, or both, to study the effects on the bats, to kill them, or kill pest insects. Studies of effects have shown that DDT and dieldrin are more toxic to bats than other organochlorines. They have also shown that DDT usually reduces colony size temporarily but that it rarely exterminates a colony. Application of DDT usually results in dead or dying bats lying outside the roost site, thus increasing the likelihood that people or pets will be bitten.
Effect of Selected Chemicals on Indiana Bats, Gray Bats, and Bald Eagles at Fort Leonard Wood, Missouri. Appendix IV to the Biological Assessment: Relocation of U.S. Army Chemical School and U.S. Army Military Police School to Fort Leonard Wood, Missouri
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 573
Book Description
The proposed Base Realignment and Closure (BRAC) action will involve moving the Chemical and Military Police schools from Fort McClellan Alabama to Fort Leonard Wood, Missouri. The Environmental Impact Statement (HBA 1996), addresses impacts of this action on the human environment. A major component of the BRAC action involves introduction of obscurant and simulant training to the Fort Leonard Wood environment. Military uses for obscurants (smoke) include screening, deception, and identification of equipment, facilities, and troops (Shinn et al. 1987). Training simulants are used by the military to instruct soldiers in recognition of dangerous, hazardous or toxic chemicals used by enemy forces in chemical and biological warfare. Two federally endangered species, the Indiana bat (Myotis sodalis) and the gray bat (Myotis grisescens), and one threatened species, the bald eagle (Hallaeetus leucocephalus) occur on Fort Leonard Wood. We performed this Ecological Risk Assessment (ERA) to comply with the Endangered Species Act, and in support of the BRAC Environmental Impact Statement (EIS). This report is an appendix to the Biological Assessment (BA) for Relocation of U.S. Army Chemical School and U.S. Army Military Police School to Fort Leonard Wood, Missouri. The ERA focuses on potential contaminants generated by Chemical and Military Police School training. Risks to endangered and threatened species estimated herein were based on either modeled or estimated exposure concentrations and literature-based toxicity values. Risks were used to determine direct effects to the species of concern. Indirect effects were addressed qualitatively. We assessed effects to adults, juveniles, and other life stages of the Indiana bat, gray bat, and bald eagle.
Gray Bat Migration in Missouri
Author: Cheyenne GerdesPublisher:
ISBN:
Category : Bats
Languages : en
Pages : 96
Book Description
Migration is an important and understudied aspect of the life histories of many species, particularly bats. Migration impacts conservation efforts, including efforts to manage the impacts of wildlife disease. The federally endangered gray bat (Myotis grisescens) is a migratory species with documented infections by Pseudogymnoascus destructans, the fungus that causes White-nose Syndrome (WNS). To better understand migration as it might relate to WNS, I quantified the timing and location of gray bat movements in Missouri using acoustic detectors and bat banding. I recorded calls at 4 maternity sites from January to May 2015, and used the R package PVAClone to generate estimates of r and K as measures of arrival rate and an index of population size at the maternity sites respectively. These values were plotted against each cave’s distance from a major hibernaculum to examine whether there was an effect on the arrival of gray bats at a site. Values of r varied between 0.3 and 0.9, and values of K varied between 981 and 3020 among the maternity roosts: estimates were consistent whether considering observation error or not. While bats arrived at the closest maternity colony quicker and in greater numbers, the remaining rates and indices were equivocal with distance. Over 1,000 gray bats were banded and 18 were relocated, revealing previously undocumented connections between gray bat caves across the region. The acoustic methodology used in this thesis could be useful for management officials wanting to monitor the timing of bat migration and site activity, both of which could be affected by WNS. The cave network used by gray bats in Missouri could yield insight into how WNS spreads across cave networks.
Agrindex
Author: Environment Abstracts Annual 1989
Author: Bowker Editorial StaffPublisher: R. R. Bowker
ISBN: 9780835226691
Category : Nature
Languages : en
Pages : 1932
Book Description
Bats in the Anthropocene: Conservation of Bats in a Changing World
Author: Christian C. VoigtPublisher: Springer
ISBN: 3319252208
Category : Nature
Languages : en
Pages : 601
Book Description
This book focuses on central themes related to the conservation of bats. It details their response to land-use change and management practices, intensified urbanization and roost disturbance and loss. Increasing interactions between humans and bats as a result of hunting, disease relationships, occupation of human dwellings, and conflict over fruit crops are explored in depth. Finally, contributors highlight the roles that taxonomy, conservation networks and conservation psychology have to play in conserving this imperilled but vital taxon. With over 1300 species, bats are the second largest order of mammals, yet as the Anthropocene dawns, bat populations around the world are in decline. Greater understanding of the anthropogenic drivers of this decline and exploration of possible mitigation measures are urgently needed if we are to retain global bat diversity in the coming decades. This book brings together teams of international experts to provide a global review of current understanding and recommend directions for future research and mitigation.
Bibliography of Agriculture
Author: Environmental Impacts of Wind-Energy Projects
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309108349
Category : Science
Languages : en
Pages : 395
Book Description
The generation of electricity by wind energy has the potential to reduce environmental impacts caused by the use of fossil fuels. Although the use of wind energy to generate electricity is increasing rapidly in the United States, government guidance to help communities and developers evaluate and plan proposed wind-energy projects is lacking. Environmental Impacts of Wind-Energy Projects offers an analysis of the environmental benefits and drawbacks of wind energy, along with an evaluation guide to aid decision-making about projects. It includes a case study of the mid-Atlantic highlands, a mountainous area that spans parts of West Virginia, Virginia, Maryland, and Pennsylvania. This book will inform policy makers at the federal, state, and local levels.
Author: