Evaluation of natural resources in Bastrop, Burleson, Lee and Milam Counties

Burgeoning population growth in Texas has increased demand on the limited water resources of the state. Future exports of water from the Carrizo-Wilcox aquifer in areas of Bastrop, Burleson, Lee, and Milam counties are anticipated. In response to these activities, the TPWD compiled this inventory of natural resources data for the affected counties to help […]

Proceedings of The Fifth Annual Symposium on Zoo Research


Use of fecal glucocorticoid metabolite measures in conservation biology research: considerations for application and interpretation

Fecal glucocorticoid metabolite analyses are increasingly being used by a variety of scientists (e.g., conservation biologists, animal scientists) to examine glucocorticoid (i.e., stress hormone) secretion in domestic and wild vertebrates. Adrenocortical activity (i.e., stress response) is of interest to conservation biologists because stress can alter animal behavior, reduce resistance to disease, and affect population performance. […]

Pregnancy determination in the Asian elephant (Elephas maximus): A change in the plasma progesterone to 17α hydroxyprogesterone ratio

Abstract 10.1002/(SICI)1098-2361(1997)16:53.3.CO;2-3 The measurement of circulating progesterone (P) is widely used to confirm and monitor pregnancy in the captive Asian elephant. Consistently elevated progesterone (P) concentrations for a minimum of 12 weeks can be used as a positive indication of pregnancy, although two instances of prolonged P secretion during the cycle have been recorded [Rübel, […]

Fecal pellet measurements of manipur brow-antlered deer with respect to sex and age classes

Abstract 10.1002/zoo.1430120607.abs Measurements were made of fecal pellets for captive brow-antlered deer (Cervus eldi eldi) from different age and sex classes. Pellet measurements increased linearly with increases in age, except for length and width measurements in males. Differences in dimensions were statistically significant between sexes and among some age classes. This procedure may be useful […]

Influence of nutrition on the quality of semen in Jaguars Panthera onca in Brazilian zoos

In Brazilian zoos wild felids in captivity are generally fed meat. However, considering the basic nutritional needs of the domestic cat Felis catus, beef may be deficient in calcium, phosphorus, copper, manganese, vitamins A, D and E, thiamin, folic acid and biotin. The aim of this study was to determine the influence of vitamin (A, […]

Movement and mortality of translocated urban-suburban grey squirrels

During summer and autumn of 1994-1997, we determined the movements and mortality of 38 adult male Eastern grey squirrels (Sciurus carolinensis) that had been captured in urban-suburban backyards and translocated to a large forest. The squirrels did not fare well. Squirrels not found dead or classified as ‘probable mortality’ disappeared from the forest with a […]

Minimally Invasive Health Monitoring of Wildlife

Investigations of free-living wild animals often involve capture, restraint or other forms of manipulation. There is a need, on both scientific and welfare grounds, to develop and to use less invasive techniques, especially for the assessment of health. Already some such procedures exist, ranging from observation of clinical signs to the laboratory examination and analysis […]

Ethics of Interventions for the Welfare of Free-living Wild Animals

There is growing interest in and support for the development of disease prevention measures in free-living wildlife and for the rescue, treatment and rehabilitation of wild animals that are sick and injured. In some cases these endeavours may be of importance to the conservation of populations but frequently they are undertaken for welfare rather than […]

The Welfare of Free-Living Wild Animals: Methods of Assessment

In assessing the relative merits of farm animal production systems or research procedures using live animals, the impact on the welfare of the animals involved is increasingly being taken into account. Many human activities and human-induced environmental changes can, similarly, adversely affect the welfare of free-living wild animals. As part of a study to investigate […]