Individual and environmental risk factors associated with fecal glucocorticoid metabolite concentrations in zoo-housed Asian and African elephants

Authors: J. L. Brown, K. Carlstead, J. D. Bray, D. Dickey, C. Farin, K. Ange-van Heugten

Publication/Journal: Plos One

Keywords: behavior, choice, hormones, indicators, maximus, noninvasive assessment, Salivary cortisol secretion, serum, stress responses, welfare

2019

Prolonged ovarian acyclicity is associated with a higher likelihood of developing hyperprolactinemia in zoo female African elephants

Authors: Natalia A. Prado, Stephen W. Paris, Janine L. Brown

Publication/Journal: Zoo Biology

Keywords: endangered, hypogonadism, infertility, pituitary disorder, progesterone, prolactin, zoo

2019

A Comparison of Walking Rates Between Wild and Zoo African Elephants

Authors: Lance J. Miller, Michael J. Chase, Charlotte E. Hacker

Publication/Journal: Journal of Applied Animal Welfare Science

Keywords: elephants, excercise, locomotion, zoo

2016

Investigating temporary acyclicity in a captive group of Asian elephants (Elephas maximus): Relationship between management, adrenal activity and social factors

Authors: K. L. Edwards, J. Trotter, M. Jones, J. L. Brown, H. W. Steinmetz, S. L. Walker

Publication/Journal: General and Comparative Endocrinology

Keywords: animal welfare, asian elephant, birth synchrony, central mechanisms, chemical communication, dominance status, endocrinology & metabolism, enzyme immunoassay, estrous synchrony, glucocorticoids, loxodonta-africana elephants, management, oestrous synchrony, ovarian activity, reproduction, reproductive cyclicity, temporary acyclicity, zoo elephants

2016

Results of the third reproductive assessment survey of north American Asian (Elephas maximus) and African (Loxodonta africana) female elephants

Authors: T. L. Dow,, I. Holásková, J. L. Brown

Publication/Journal: Zoo Biology

Keywords: acyclicity, hormones, ovarian cyclicity, progestagens, reproduction, ultrasound

2011

Influence of dominance status on adrenal activity and ovarian cyclicity status in captive African elephants

Authors: Christine M. Proctor, Elizabeth W. Freeman, Janine L. Brown

Publication/Journal: Zoo Biology

Keywords: cortisol, dominance, ovarian cyclicity

2010

Investigating the impact of rank and ovarian activity on the social behavior of captive female African elephants

Authors: Elizabeth W. Freeman, Bruce A. Schulte, Janine L. Brown

Publication/Journal: Zoo Biology

Keywords: acyclicity, african elephant, behavior, loxodonta africana, social rank

2010

Results of a second survey to assess the reproductive status of female Asian and African elephants in North America

Authors: Christine M. Proctor, Elizabeth W. Freeman, Janine L. Brown

Publication/Journal: Zoo Biology

Keywords: estrous cycle, hormones, ovarian cyclicity, progestagens, ultrasound

2010

What do population-level welfare indices suggest about the well-being of zoo elephants?

Authors: Georgia J. Mason, Jake S. Veasey

Publication/Journal: Zoo Biology

Keywords: acyclicity, captivity, longevity, stereotypic behavior, stress

2010

Social factors influence ovarian acyclicity in captive African elephants (Loxodonta africana)

Authors: Elizabeth W. Freeman, Greg Guagnano, Deborah Olson, Mike Keele, Janine L. Brown

Publication/Journal: Zoo Biology

Keywords: african elephant, loxodonta africana, ovarian acyclicity

2009