| Second nature: Environmental enrichment for captive animals DJ Shepherdson, JD Mellen, M Hutchins Smithsonian Institution, 1999 | 812* | 1999 |
| Scientific approaches to enrichment and stereotypies in zoo animals: what's been done and where should we go next? RR Swaisgood, DJ Shepherdson Zoo Biology: Published in affiliation with the American Zoo and Aquarium …, 2005 | 561 | 2005 |
| The influence of food presentation on the behavior of small cats in confined environments DJ Shepherdson, K Carlstead, JD Mellen, J Seidensticker Zoo biology 12 (2), 203-216, 1993 | 397 | 1993 |
| Effects of environmental enrichment on reproduction K Carlstead, D Shepherdson Zoo biology 13 (5), 447-458, 1994 | 335 | 1994 |
| Alleviating stress in zoo animals with environmental enrichment. K Carlstead, D Shepherdson The biology of animal stress: basic principles and implications for animal …, 2000 | 315 | 2000 |
| The role of environmental enrichment in the captive breeding and reintroduction of endangered species D Shepherdson Creative conservation: Interactive management of wild and captive animals …, 1994 | 252 | 1994 |
| The value of enrichment to reintroduction success RP Reading, B Miller, D Shepherdson Zoo biology 32 (3), 332-341, 2013 | 213 | 2013 |
| Individual and environmental factors associated with stereotypic behavior and fecal glucocorticoid metabolite levels in zoo housed polar bears D Shepherdson, KD Lewis, K Carlstead, J Bauman, N Perrin Applied Animal Behaviour Science 147 (3-4), 268-277, 2013 | 177 | 2013 |
| Environmental enrichment as a strategy for mitigating stereotypies in zoo animals: a literature review and meta-analysis. R Swaisgood, D Shepherdson Stereotypic animal behaviour: fundamentals and applications to welfare, 256-285, 2006 | 172 | 2006 |
| Scent marking with faeces and anal secretion in the European badger (Meles meles): seasonal and spatial characteristics of latrine use in relation to territoriality TJ Roper, DJ Shepherdson, JM Davies Behaviour, 94-117, 1986 | 170 | 1986 |
| Cross-institutional assessment of stress responses in zoo animals using longitudinal monitoring of faecal corticoids and behaviour DJ Shepherdson, KC Carlstead, N Wielebnowski Animal Welfare 13 (S1), S105-S113, 2004 | 130 | 2004 |
| Seasonal distribution of road kills in the European badger (Meles meles) JM Davies, TJ Roper, DJ Shepherdson Journal of Zoology 211 (3), 525-529, 1987 | 126 | 1987 |
| Environmental enrichment: past, present and future DJ Shepherdson International Zoo Yearbook 38 (1), 118-124, 2003 | 122 | 2003 |
| Free mate choice enhances conservation breeding in the endangered giant panda MS Martin-Wintle, D Shepherdson, G Zhang, H Zhang, D Li, X Zhou, R Li, ... Nature Communications 6 (1), 10125, 2015 | 101 | 2015 |
| Do opposites attract? Effects of personality matching in breeding pairs of captive giant pandas on reproductive success MS Martin-Wintle, D Shepherdson, G Zhang, Y Huang, B Luo, ... Biological Conservation 207, 27-37, 2017 | 95 | 2017 |
| Elephant management in North American zoos: environmental enrichment, feeding, exercise, and training BJ Greco, CL Meehan, LJ Miller, DJ Shepherdson, KA Morfeld, J Andrews, ... PloS one 11 (7), e0152490, 2016 | 90 | 2016 |
| Captive environments for small felids. JD Mellen, MP Hayes, DJ Shepherdson | 89 | 1998 |
| Validation of a novel cognitive bias task based on difference in quantity of reinforcement for assessing environmental enrichment HA Keen, OL Nelson, CT Robbins, M Evans, DJ Shepherdson, ... Animal cognition 17 (3), 529-541, 2014 | 87 | 2014 |
| A survey of elephant husbandry and foot health in North American zoos KD Lewis, DJ Shepherdson, TM Owens, M Keele Zoo Biology 29 (2), 221-236, 2010 | 84 | 2010 |
| Environmental enrichment for felids: an integrated approach JD MELLEN, DJ SHEPHERDSON International Zoo Yearbook 35 (1), 191-197, 1997 | 84 | 1997 |
Ron SwaisgoodSan Diego Zoo Wildlife AllianceVerified email at sdzwa.org
