A technique for non-invasively detecting stress response in cougars

  title={A technique for non-invasively detecting stress response in cougars},
  author={Frances Bonier and Howard Quigley and Steven N. Austad},
Abstract The ability to non-invasively monitor stress hormone levels in free-ranging animals could significantly aid in conservation and management efforts. Our objective in this study was to demonstrate the effectiveness of assay of fecal corticoid metabolites in detecting a stress response in cougars (Puma concolor). Fecal samples were collected from 9 captive cougars before and after an artificial stressor. Steroid hormones were extracted from the samples. Adrenal corticoid metabolite… 

Analysis of cortisol in dog hair - a potential biomarker of chronic stress: a review

Hair collection appears to be a suitable method for determining the level of stress in dogs from shelters, abused dogs or dogs involved in different types of animal interactions, but requires further research to prove its efficacy.

Effect of Bungee-carcass enrichment on behavior and fecal glucocorticoid metabolites in two species of zoo-housed Felids.

The neutral hormonal impact on the animals coupled with the behavioral changes indicates that this enrichment is successful at altering the animals' behavior without adding physiological stress to their environments.

Effects of tourist pressure and reproduction on physiological stress response in wildcats: management implications for species conservation

It is recommended that some zones of park (integral reserve) continue being maintained free of visitor impact and that visitor numbers be specially controlled during the animals’ sensitive periods (gestation) in the zone of restricted public use and in the restricted zone.

Non-invasive genetic sampling reveals diet shifts, but little difference in endoparasite richness and faecal glucocorticoids, in Belizean felids inside and outside protected areas

This research provides a template for expanding non-invasive sampling approaches more widely across the range of Neotropical felids, and suggests improvements to increase sample sizes outside protected areas.

Chemical horn infusions--a poaching deterrent or an unnecessary deception?

It is argued that conservationists should not use this technique to deal with the rhinoceros poaching threat, and contests the efficacy of this technique on conceptual and logistical grounds.

The Landscape of Fear: Ecological Implications of Being Afraid~!2009-09-09~!2009-11-16~!2010-02-02~!

It is proposed that the landscape of fear can be quantified with the use of well documented existing methods such as giving- up densities, vigilance observations, and foraging surveys of plants and has the potential to become a unifying ecological concept.



Response of fecal cortisol to stress in captive chimpanzees (Pan troglodytes)

Both fecal concentrations and proportionate increases in response to stress were significantly correlated with the corresponding values in urinary cortisol, confirming the stressfulness of these procedures and the stress responsiveness of fecal cortisol.

Fecal Glucocorticoids: A Noninvasive Method of Measuring Adrenal Activity in Wild and Captive Rodents

  • J. HarperS. Austad
  • Biology, Environmental Science
    Physiological and Biochemical Zoology
  • 2000
The results suggest that fecal measurements reflect stress levels experienced by these animals approximately 6–12 h before defecation, and given a judicious trapping and trap‐monitoring protocol, this assay has considerable utility for measuring the stress levels at which animals actually exist in the field.

Noninvasive Stress and Reproductive Measures of Social and Ecological Pressures in Free‐Ranging African Elephants

It is suggested that measures of progesterone and corti- sol metabolites in feces provide indices of reproductive function and physiological stress that can quantify both natural and human disturbances in African elephants.

A generalized fecal glucocorticoid assay for use in a diverse array of nondomestic mammalian and avian species.

Fecal glucocorticoid assays reliably detect endogenous changes in adrenal activity of a diverse array of species and, where comparisons were made, the ICN corticosterone antibody generally was superior to other antibodies for measuring glucoc Corticoid metabolites in feces.

Snowmobile Activity and Glucocorticoid Stress Responses in Wolves and Elk

Immunoassays of fecal glucocorticoid levels provide a sensitive and noninvasive method of measuring the physiological stress responses of wildlife to disturbances and there was no evidence that current levels of snowmobile activity are affecting the population dynamics of either species in these locations.

Stress in birds due to routine handling and a technique to avoid it.

In entirely undisturbed geese, blood levels of catecholamines, corticosterone, and lactate were as low or even lower than the lowest values previously reported for birds, and stress-induced variations in pH that would have concealed detection of nutrition-induced changes in pH were eliminated.

Cortisol metabolism in the domestic cat and implications for non-invasive monitoring of adrenocortical function in endangered felids

Data indicate that adrenocortical activity can be monitored nonivasively in the cat by measuring cortisol metabolites excreted in feces, and is a potentially valuable tool for endangered felid management to help evaluate responses to physiological and psychological stressors associated with environmental conditions and husbandry practices.


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Radiocollaring and Stress Hormones in African Wild Dogs

It is suggested that the benefits of studying wild dogs outweigh the potential risks, and studies of radiocollared wild dogs have identified ecological factors that regulate wild dog numbers, and this information will be of use in conserving the species.

Comparative aspects of steroid hormone metabolism and ovarian activity in felids, measured noninvasively in feces.

Noninvasive fecal assays were used to study steroid metabolism and ovarian activity in several felid species and indicated that steroid metabolism mechanisms appear to be conserved among these physically diverse, taxonomically related species.