Zoos and aquaria are paying increasing attention to environmental enrichment, which has proven an effective tool for the improvement of animal welfare. However, several ongoing issues have hampered progress in environmental enrichment research. Foremost among these is the taxonomic bias, which hinders our understanding of the value of enrichment for neglected groups, such as reptiles. In this study, we evaluated the status of environmental enrichment for reptiles in European zoos using a survey approach. A total of 121 zoos (32% response rate) completed our main survey, focusing on the use of different enrichment types for reptiles. We found significant differences in the use and/or type of enrichment between reptile groups. Tortoises (family Testudinidae) and monitor lizards (genus Varanus) were the most enriched taxa while venomous snakes were the least. The enrichment types most used across taxa were structural/habitat design and dietary. A second, more detailed, questionnaire followed, where participants were questioned about specific enrichment techniques. A total of 42 enrichment methods were reported, with two being represented across all taxa: increasing structural/thermal complexity and enrichment objects. Finally, we present information from participating zoos on enrichment goals, assessment methods, sources of information for enrichment ideas, and whether enrichment for reptiles is considered essential and/or implemented routinely. Results suggest that, although usage is widespread across European zoos, our understanding of enrichment for reptiles needs to be re-evaluated, since many of the techniques reported tread a fine line between basic husbandry and actual enrichment.

Visitors to zoos can be a potential source of stress to captive-housed primates, resulting in increased abnormal behaviour and intra-group aggression. Finding a way to screen primates from human visitors may be one method of decreasing stress and enhancing animal welfare. For this study, the behaviour of six zoo-housed gorillas was studied for one month during standard housing conditions (control condition) and for a further month following the installation of a camouflage net barrier to the viewing area of the exhibit (barrier condition). Visitors’ (n = 200) perceptions of the animals and the exhibit were also recorded during each condition. The net barrier had a significant effect on some components of the gorillas’ behaviour. The gorillas exhibited significantly lower levels of conspecific-directed aggression and stereotypic behaviours during the barrier than the control condition. The net barrier also had a slight effect on visitors’ perceptions both of the animals and of their exhibit. The gorillas were considered to look more exciting and less aggressive during the barrier than the control condition. The exhibit was also considered to be more appropriate for visitors following the introduction of the camouflage netting. Overall, the addition of a screen such as camouflage netting could be considered a positive change, resulting in a reduction in those behaviours typically induced by large groups of visitors and an improvement in public perceptions of the animals and their environment.

As zoos have evolved, conservation and conservation education have become primary tasks. To achieve the maximum educational impact, zoos are enriching animal habitats so that their occupants display a wide range of activities that are attractive to the visitor, and unattractive activities are eliminated and reduced. Because public perceptions of the attractiveness of animal behaviour may not coincide with welfare realities, there can be a tension between the requirements of desirable exhibits and those of maximally promoting animal welfare. Zoo animals differ from domesticated animals in human care in several respects. These differences are discussed and set in the context of the sometimes competing aims of enhancing welfare and promoting educational exhibits. An outline history of zoo enrichment programmes suggests that the subject is in need of systematization. The range of data available for improving zoo exhibit designs, and the lives of zoo animals, is reviewed. It is concluded that fundamental data on the environmental needs of many of the wild animals maintained in zoos are deficient in many important areas. Consequently, there is an urgent need to increase such research. Zoo habitats could be excellent places for such fundamental studies, which would feed back into field studies. At the same time, habitat enrichment in zoos cannot await such research and must proceed pragmatically using the range of insights described in this paper. In particular, functional substitution is advocated as a means of enrichment wherever this can be made acceptable to the broad public; its educational value in combatting naive anthropomorphism is stressed. Naturalism in enrichment is criticized as reinforcing anthropomorhisms, but is desirable for promoting global habitat conservation.

Conserving species and achieving the Convention on Biological Diversity's international conservation targets necessitates stopping extinctions, recovering depleted populations and maintaining viable populations. The contribution of ex situ management to species conservation has long been debated, and there is limited information on ex situ management activities available in a format that allows success to be assessed. We therefore gathered information from three sources to explore cases in which ex situ management was considered to have had a positive conservation impact for terrestrial vertebrate species. We (1) reviewed the published literature, (2) examined for which taxa ex situ management had contributed to the downlisting of species on the IUCN Red List and (3) surveyed a global network of ex situ management practitioners. We found that ex situ management has contributed to improvements in conservation status for a range of vertebrate species. Ex situ management was reported as contributing to the downlisting of 18 species on the IUCN Red List over a 10-year period. Across sources, the most common role of ex situ management was the provision of individuals to increase population numbers in situ. The strength of evidence for the impact of ex situ management varied within and among sources. Therefore, for the role of ex situ activities in conservation to be understood fully, and for such interventions to reach their potential, documentation of intended and actual benefits needs to be improved. Better reporting of ex situ activities would enable improved learning, facilitating better targeting of ex situ activities to global species conservation goals.

This article examines the zoological gardens established by Japanese imperialists in colonial Seoul (1908) and Taipei (1914). Drawing on multilingual sources, it argues that zoos explicitly exposed the unequal interethnic and interspecies hierarchies that undergirded the colonial project. The colonial zoo was an ambivalent “dreamscape”: a carefully constructed landscape of iron cages and manicured pathways wherein colonizers’ dreams of ordering the natural world and colonized populations existed in uneasy tension with the actual experiences of zoo visitors and encaged zoo animals. Intellectuals sometimes criticized zoo excesses or identified the bondage of caged animals with the colonized experience. Yet these zoos also enjoyed immense popularity as Japanese, Korean, and Taiwanese visitors alike participated in the physical and discursive subjugation of zoo animals. Sensitivity to these contradictions, this essay contends, is essential for understanding both the broader significance of these institutions and their contested legacies today.

In situ conservation is central to contemporary global biodiversity protection and is the predominant emphasis of international regulation and funding strategies. Ex situ approaches, in contrast, have been relegated to a subsidiary role and their direct contributions to conservation have been limited. We draw on a variety of sources to make the case for an enhanced role for ex situ conservation. We note the advances occurring within institutions specializing in ex situ conservation and stress that, although much remains to be done, many constraints are being addressed. We argue that the evidence of increasing extinction rates, exacerbated by climate change, challenges the wisdom of a heavy dependence on in situ strategies and necessitates increased development of ex situ approaches. A number of different techniques that enable species and their habitats to survive should now be explored. These could build on the experience of management systems that have already demonstrated the effective integration of in situ and ex situ techniques and hybrid approaches. For organizations specializing in ex situ conservation to become more effective, however, they will require tangible support from the institutions of global biodiversity governance. Resistance is anticipated because in situ conservation is entrenched through powerful groups and organizations that exert influence on global conservation policy and facilitate the flow of funding. The chasm that has traditionally divided in situ and ex situ approaches may diminish as approaches are combined. Moreover, the relentless loss of the ‘wild’ may soon render the in situ / ex situ distinction misleading, or even obsolete.

Cloned animals are often understood as ‘models’ whose embodiments demonstrate the viability of somatic cell nuclear transfer and its applicability to a species body. In conceptualizing models through the trope of technoscience, Evelyn Fox Keller has argued that scientific models are not simply cognitive representations of something else, but are also embodiments of action and practice that constitute the kinds of scientific questions that can be asked and how those questions can be answered. Drawing on Keller’s language, I would say that, while we understand cloned animals as ‘models of’ somatic cell nuclear transfer, little empirical scholarship has explored what these animals are ‘models for’. This article asks what practices cloned animals embody, focusing on endeavours to clone endangered wildlife in the United States. Based on a multi-sited, ethnographic study, I show that these animals are models for conducting science in zoological parks, which entails questions regarding the kinds of knowledge practices that should be used to reproduce zoos and, in turn, meaningfully reconstitute wildlife. Based on this analysis, I contend that cloned animals not only model technique and scientific practices, but also new assemblages in the reproduction of zoos and, in turn, nature.

The present study affirms previous research findings that volunteering satisfies personal needs but goes further by considering the factor of collective identity for volunteers and its consequences for them. The study specifically focused on older volunteers working at zoos. In the initial phase at Central Park Zoo 30 volunteers completed a short self-completion questionnaire. The second phase involved one-on-one interviews with 21 Bronx Zoo volunteers with a collective self-esteem scale. The responses indicated that the volunteers considered the collective identity of zoo volunteer to be important to their self-concept and believed that this identity is held in high public esteem. The results also suggested that identity as a zoo volunteer not only satisfies personal needs, as found by other volunteer studies, but that the collective identity supports external activism based on shared values. It was concluded that the collective environmental identity facilitated by volunteer work at the zoos provides affirmational social support for the volunteers' work as environmental conservation advocates, and enhances their sense of purpose and self-efficacy.

The Endangered Javan hawk eagle Spizaetus bartelsi is threatened in part by the illegal pet trade. In 1993 the species was declared Indonesia's National Rare/Precious Animal, by former President Soeharto. Trade in the species and keeping it as a pet are illegal. We consolidated data about the species in trade, as observed at bird markets, with private owners, in zoological gardens (to date the species has not been bred in captivity and those in zoos are all wild-caught that were formerly in trade) and wildlife rescue centres, involving at least 68 birds. The average price for the species at bird markets was USD 40 (n = 5). The number observed at bird markets appears to have increased over time. Furthermore, prior to its declaration as a National Rare/Precious Animal it was not considered in trade to be different from other large eagles. There are indications that individuals have been illegally exported to other parts of Asia. In the early 1990s no Javan hawk eagles were kept in zoos but it became in demand in the mid 1990s and now there are 11 in six zoos throughout Java. Law enforcement with respect to trade in eagles appears to be largely absent but nine Javan hawk eagles have been brought to a wildlife rescue centre on Java. Overall, the data suggest there was an increase in trade in Javan hawk eagles after it was declared the National Rare/Precious Animal. When a threatened species is put in the spotlight to highlight its conservation plight, this should be done with close cooperation between conservation NGOs and government organizations, with appropriate legislation and/or management plans to prevent overexploitation.

Captive breeding programmes for the Asian elephant Elephas maximus have failed to establish self-sustaining zoo populations. Birth rates are low and calf mortality rates are high. The zoo population is widely dispersed, with few animals being moved on breeding loan. New techniques may increase birth rates but current predictions suggest demographic extinction within 50 years. It would be difficult to justify importing elephants from sustainable zoo reserves in Asia to participate in ex situ breeding programmes where reproductive success is low. Zoos should either urgently regroup animals to form breeding units, or accept that Asian elephants will die out in zoos and that funds should be diverted to in situ conservation projects.