Identification of cougar and jaguar feces through bile acid chromatography

Article Abstract:

Fecal studies using the nondestructive technique for assessment of carnivore population size and diet, often face difficulties in accurate scat identification. A method of determining feces origin based on thin layer chromatogrophy (TLC) bile acid patterns was developed to assist in the identification of the collected feces of cougars and jaguars. They were found to contain the same bile acids, although they could be distinguished by a bile acid only present in jaguar feces, suggesting that the technique is the best way of identifying cougar and jaguar feces.

Usage, Feces, Bile acids, Thin layer chromatography, Jaguars

---

Cougar population characteristics in southeastern British Columbia

Article Abstract:

There has generally been little research into cougars in British Columbia, even though extensive studies have been undertaken into cougar populations in other regions of western North America. However, recent research has focused on southeastern British Columbia, considering a cougar population during the period May 1985-Nov 1987. It was found that kittens accounted for 55-58% of the population each winter, with birth intervals being 15-23 months. Two resident males had yearly home ranges averaging 151 sq km, with no male home range overlap.

---

Variable reproductive success of bald eagles on the British Columbia coast

Article Abstract:

A new study compares the reproductive success of bald eagles nesting close to industrial sites on the British Columbia coast's Strait of Georgia with those on the outer Pacific Coast. It is shown that pairs around the Strait of Georgia produce more chicks than in the other study areas. The main factor limiting nest success seems to be food and prey composition.

Observations, Birds, Bird breeding, Bald eagle

Similar abstracts:

• Abstracts: The detection of carbonation by the Drosophila gustatory system. Dependence of Drosophila wing imaginal disc cytonemes on decapentaplegic
• Abstracts: Propagation of solar oscillations through the interplanetary medium. Slow rotation of the Sun's interior
• Abstracts: Research institute on company lines. A nanotube laboratory. Centre of excellence on the Yangtse
• Abstracts: Distinct functions of nuclear and cytoplasmic calcium in the control of gene expression
• Abstracts: Economics and the Endangered Species Act. Of wings and warriors

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.