Life Sciences Commons^™

Distribution And Habitats Of Mosquito Larvae In The Kingdom Of Tonga, Jon S. Harding, Culum Brown, Felicity Jones, Russell Taylor

Ecology Collection

Mosquitoes are a significant pest and human health issue in the Kingdom of Tonga. The occurrence of species and habitats used by mosquito larvae were investigated to determine the potential for control through larval habitat management. Forty-two sites, including 22 villages and 20 farm plantations on the six islands of Tongatapu, Pangaimotu, Vava’u, Pangaimotu (Vava’u group), ‘Utungake and Nuku, were surveyed in April 2006. A total of eight mosquito species were collected: Aedes aegypti (Linnaeus), Ae. horrescens (Edwards), Ae. nocturnus (Theobold), Ae. tongae (Edwards), Culex albinervis (Edwards), Cx. annulirostris (Skuse), Cx. quinquefasciatus (Say) and Cx. sitiens (Wiedemann). Several species were …

Physiological Constraints On Contest Behaviour, Mark Briffa, Lynne U. Sneddon

Sentience Collection

1. Contests may involve injurious fighting, other types of direct physical aggression and communication. They occur over ownership access to mates and other resources that may increase an individual’s attractiveness and its chance of survival. Traits that enhance resource holding potential may be the result of sexual selection, natural selection or a combination of both.
2. Agonistic behaviours are expected to be demanding to perform and costly in terms of changes in physiological state. The ability to meet the physiological costs may determine contest outcomes and constrain the intensity of agonistic activities.
3. The energetic costs have been investigated in a broad range …

Observing Panda Play: Implications For Zoo Programming And Conservation Efforts, Sarah M. Bexell, Olga S. Jarrett, Luo Lan, Hu Yan, Estelle A. Sandhaus, Zhang Zhihe, Terry L. Maple

Zoos and Aquariums Collection

This study explores the effects of visitor observation of giant panda play on visitor concern for endangered species and satisfaction with seeing giant pandas. A total of 335 visitors to three institutions that house giant pandas participated in the study. These institutions are: the Chengdu Research Base of Giant Panda Breeding, and the Chengdu Zoo, in China; and Zoo Atlanta in the U.S. After viewing the giant pandas, visitors were interviewed on whether they ever observed a panda play session, whether they observed panda play on the day of the visit, whether they wanted additional information on panda protection, and …

Animal Welfare Perspectives On Recreational Angling, Steven J. Cooke, Lynne U. Sneddon

Animal Welfare Collection

Fish captured by recreational anglers are often released either voluntarily or because of harvest regulations in a process called ‘‘catch-and-release’’. Catch-and-release angling is thought to be beneficial for the conservation of fish stocks based on the premise that most of the fish that are released survive. However, expanding interest in animal welfare has promoted debate regarding the ethics of catch-and-release angling. There is a growing recognition that fish can consciously experience nociception and that they have some capacity to experience pain and fear. Indeed, empirical anatomical, physiological, and behavioural evidence supports the notion that fish could experience these two forms …

How Animals Communicate Quality Of Life: The Qualitative Assessment Of Behaviour, F. Wemelsfelder

Sentience Collection

The notion ‘quality of life’ (QoL) suggests that welfare in animals encompasses more than just an absence of suffering; it concerns the quality of an animal’s entire relationship with its environment, of how it lives its life. Judgements of such quality are based on the integration of perceived details of how animals behave over time in different contexts. The scientific status of such judgements has long been ambiguous, but in recent decades has begun to be addressed by animal scientists. This paper starts with a brief review of qualitative approaches to the study of animal behaviour, which tend to address …

Critter Psychology: On The Possibility Of Nonhuman Animal Folk Psychology, Kristin Andrews

Psychology Collection

No abstract provided.

Stable Isotopic Niche Predicts Fitness Of Prey In A Wolf–Deer System, C. T. Darimont, P. C. Paquet, T. E. Reimchen

Evolutionary Biology Collection

Interindividual variation in niche presents a potentially central object on which natural selection can act. This may have important evolutionary implications because habitat use governs a suite of selective forces encountered by foragers. In a free‐living native black‐tailed deer, Odocoileus hemionus, population from coastal British Columbia, we used stable isotope analysis to identify individual variation in foraging niche and investigated its relationship to fitness. Using an intragenerational comparison of surviving and nonsurviving O. hemionus over 2 years of predation by wolves, Canis lupus, we detected resource‐specific fitness. Individuals with isotopic signatures that suggested they foraged primarily in cedar ( …

The Demographics Of The U.S. Equine Population, Emily R. Kilby

State of the Animals 2007

In this demographic examination of America’s equine population, the numbers clearly show upward trends in all things equestrian over the past fifty years. Will that trajectory continue, adding year after year to the current ten million population, or will loss of open spaces turn the tide as it limits horse housing and riding room? Will ownership patterns undergo fundamental changes when population density, land costs, and escalating environmental controls eliminate the “backyard”- keeping concept and make suburban boarding stables untenable? Will horse production expenses rise in the face of land pressures to the point that equestrian involvement, now a highly …

Free-Roaming Dogs In Developing Countries: The Benefits Of Capture, Neuter, And Return Programs, Jennifer Jackman, Andrew N. Rowan

State of the Animals 2007

This chapter provides an overview of animal welfare and public health problems associated with free-roaming dog populations and strategies to resolve these problems. Placing CNR programs in the context of earlier dog and rabies control methods, the chapter explores CNR’s potential to overcome some of the shortcomings of earlier approaches and to improve animal welfare, reduce dog population growth, and prevent the spread of rabies and other canine-transmitted diseases. Constraints and current debates on current implementation of CNR programs are also examined.

Wild Neighbors : The Humane Approach To Living With Wildlife, John Hadidian

Wild Neighbors provides practical, humane, and effective advice on how to share living space with 35 of the most common species, from alligators to woodpeckers, found in the lower 48 states. Advice focuses on how to: properly and accurately define a wildlife problem; determine what type of animal is causing it; identify the damage; effectively take action for a humane and permanent solution; and proactively avoid future conflicts. This long-awaited, new and expanded edition provides invaluable information to any homeowner who seeks to live in harmony with the wildlife in his backyard and in his community.

The Steady State Economy, Habitat Stability, And The Humane Treatment Of Wild Animals, Brian Czech

State of the Animals 2007

Economic growth is not intended to kill, torture, or harass animals, and in that respect is not as detestable as various other forms of inhumanity. Yet economic growth is surely the greatest of all forms of inhumanity in terms of the gross amount of wild animal suffering that results. Therefore, for those concerned with the humane treatment of wild animals, perhaps nothing is so important to address as the policy and process of economic growth.