Leu-M

https://www.cell.com/trends/cognitive-sciences/pdf/S1364-6613(10)00185-3.pdf

Born to choose: the origins and value of the need for control

https://atrium.lib.uoguelph.ca/xmlui/bitstream/handle/10214/4733/Mason_et_al._2007%20(Why%20and%20how%20should%20we%20use%20environmental%20enrichment%20to%20tackle%20stereotypic%20behaviour).pdf?sequence=1

Why and how should we use environmental enrichment to tackle stereotypic behaviour

Approximately 26 billion animals, spanning over 10 000 species, are kept on farms and in zoos, conservation breeding centers, research laboratories and households. Captive animals are often healthier, longer-lived and more fecund than free-living conspecifics, but for some species the opposite is true. Captivity is a very long way from the ideal 'common garden' often assumed by evolutionary and ecological researchers using data for captive animals. The use of comparative methods to investigate the fundamental biological causes of these species differences would help to improve husbandry and enclosure design, and might even reveal relationships between susceptibilities to poor captive welfare and susceptibilities to anthropogenic threat in the wild. Studies of these species differences could also inspire and facilitate 'evo-mecho' research into the functions of behavioral control mechanisms.

/pdf/species-differences-in-responses-to-captivity-stress-welfare-1v8ezhd0ab.pdf

Species differences in responses to captivity: stress, welfare and the comparative method

Stress: An inevitable component of animal translocation

https://www.reed.edu/biology/professors/srenn/pages/teaching/2008_syllabus/2008_readings/1_MorganTromborg2008.pdf

Chris T. Tromborg

Papers

Sources of stress in captivity