The effect of the zoo environment on captive animals is an increasingly studied area of zoo research, with visitor effects and exhibit design recognized as two of the factors that can contribute to animal welfare in captivity. It is known that in some situations, visitors may be stressful to zoo-housed primates, and this may be compounded by environmental factors such as the weather, the time of day, and zoo husbandry routines. Exhibit design and proximity of the public are also known to influence behavioral response of primates to visitors; however, there is minimal research on free-ranging zoo animals, even though they are potentially subjected to intense interactions with visitors. The current study explores the effect of the zoo environment, several visitor variables and specific animal-visitor interactions on the behavior of free-ranging ring-tailed lemurs (Lemur catta) at Fota Wildlife Park, Ireland. Data were obtained through scan samples collected over 18 months (n = 12,263) and analyzed using a range of statistical tests, including general estimating equations (GEE). Results demonstrate that the free-ranging lemurs' behavior at Fota Wildlife Park is affected by season, weather and time of day. Similarities in feeding behavior exist between the free-ranging group and lemurs in the wild when resources are plentiful. Visitor variables had a limited effect on lemur behavior and behavioral diversity level. Lemurs rarely reacted to visitors when specific interactions were considered. Generally, the results indicate that the ring-tailed lemurs in this study have adapted well to the zoo environment and habituated to visitors.

Increasingly, it is understood that one must take into consideration all aspects of the zoo environment when assessing visitor effects. One of the unexplored topics in this area is the impact of a new group member in combination with the visitor effect on primates. Here, we investigate the effect visitors have on a group of Western lowland gorillas Gorilla gorilla gorilla before and after the birth of an infant. Observational data were obtained through scan sampling before and after the infant's birth and during different visitor conditions. Results indicate that the birth of the infant lessened some of the negative visitor effects previously observed in this group of gorillas. Particularly when in the ‘high’ visitor numbers category, the adult ♂ foraged more, was less inactive and more social after the infant's birth than he had been before. However, certain negative behaviours associated with increased visitor number, such as aggression and ‘back to viewing window’, were not diminished with the birth of the infant. Although results varied between individuals, there are indications that an event such as the birth of an infant may lessen negative visitor effects.

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There is increasing evidence that in some circumstances, zoo visitors may be aversive stimuli to nonhuman animals housed in zoos. Yet, most previous research has focused on primates with little attention given to numerous other species who are housed in zoos. The focus animal of this project was the cockatoo, a species who has received minimal attention in zoo-based research. Furthermore, although the influence of the zoo setting has become increasingly important in visitor effect studies, this is the 1st study to quantify the effect of activity at a children's playground on zoo animals. There was an investigation on the effect of a zoo playground on the behavior of citron-crested and Moluccan cockatoos (Cacatua sulphurea citrinocristata and Cacatua moluccensis), as well as the effect of children standing in front of the birds' aviaries. The results showed that in some circumstances, the Moluccan cockatoos retreated from visitors, while the citron-crested cockatoos did not retreat from visitors and became more social in the presence of visitors. These findings highlight the importance of careful selection of species and individual animals to be housed near zoo playgrounds.

Vietnam is emerging as an accelerated economic and political society with an increased global presence; thus, increased attention has been given to producing qualified college graduates who can contribute to the growing global economy. Yet challenges exist due to lack of educational infrastructure and ineffective teaching practices. As a result, the Vietnamese government embraces international collaborations in higher education as a way to address educational needs; however, although research exists on policy implications and government priorities, very little is known about how students perceive the teaching methods provided at these collaborative transnational universities. The purpose of this qualitative case study is to examine graduate students' perceived effectiveness of teaching methods at Vietnamese-German University (VGU), a predominantly technology and engineering university that is an international collaboration between Vietnam and Germany. We seek to answer the research question of, 'how is the use of student-centered practices effective in an international learning environment?' Findings from graduate students indicate that collaborative learning, specifically through group work and modified flipped classrooms, are effective ways to maximize student learning. Implications for practice and future research are discussed as ways to emphasize the benefits of student-centered teaching and learning at transnational collaborative universities.