Table 1 Explanatory codes and examples of classifying aims, outcomes, and gains into specific categories

From: What’s new from the zoo? An analysis of ten years of zoo-themed research output

Aim classes

Outcome classes

Outcome gains

Behaviour

Animal and ecosystem health

Advancing knowledge

 -e.g., time-activity budgets, ethograms

 -e.g., successful treatment of X disease or improved environmental quality

 -Specific (e.g., application to an individual species or behaviour)

Cognition

Behaviour change (human)

 -General (e.g., wide-spread application across taxa)

 -e.g., problem solving and learning.

 -e.g., Measurable influences on attitudes towards conservation work

Advancing practical application

 -Specific (e.g., development of a species-specific husbandry guideline)

Conservation and breeding programmes

Conservation and sustainability

 -General (e.g., application of positive welfare indicators for all fish)

 -e.g., EEP or SSP initiatives

 -e.g., improved population viability or successful increases in reproductive rate

Data deficient (more research needed)

Husbandry and training

Husbandry and welfare

 -e.g., no conclusive support for hypotheses or lack of relationship between variables

 -e.g., development of best practice guides

 -e.g., husbandry can be improved based on the results from research

Methods

Pure biology

 -e.g., how to collect X data in Y situation

 -e.g., “blue sky” results that add to subject knowledge

Nutrition

Scientific validity

 -e.g., diet survey and nutritional analysis

 -e.g., demonstrate the efficacy and relevance of a method or way of collecting data

Physiology and reproductive technologies

 -e.g., endocrinology studies

Veterinary medicine and animal health

 -e.g., advances in treatment

Visitor studies

 -e.g., how do zoo guests view animals?

Welfare

 -e.g., enrichment, quality of life assessment