Zoo Biology

Article	Citations
Visitor presence and a changing soundscape, alongside environmental parameters, can predict enclosure usage in captive flamingos	26
Differing animal welfare conceptions and what they mean for the future of zoos and aquariums, insights from an animal welfare audit	21
An evaluation of interactive projections as digital enrichment for orangutans	19
Assessing preferences of two zoo‐housed Aldabran giant tortoises (Aldabrachelys gigantea) for three stimuli using a novel preference test	15
Biological and environmental factors as sources of variation in nocturnal behavior of giraffe	12
Animal‐human two‐shot images: Their out‐of‐context interpretation and the implications for zoo and conservation settings	11
Preliminary investigation of the effects of a concert on the behavior of zoo animals	11
Don't use it? Don't lose it! Why active use is not required for stimuli, resources or “enrichments” to have welfare value	11
Increasing animal cognition research in zoos	10
New insights into dietary management of polar bears (Ursus maritimus) and brown bears (U. arctos)	9
Evaluation of vitamin A gut loading in black soldier fly larvae (Hermetia illucens)	9
Losing the forest for the tree? On the wisdom of subpopulation management	8
Dither: A unifying model of the effects of visitor numbers on zoo animal behavior	8
Body mass and growth rates in captive chimpanzees (Pan troglodytes) cared for in African wildlife sanctuaries, zoological institutions, and research facilities	8
In search of the optimal enrichment program for zoo‐housed animals	8
Psychological and social well‐being of bony fishes in zoos and aquariums	8
Strategies for establishing and using genome resource banks to protect genetic diversity in conservation breeding programs	8
The historical development of juvenile mortality and adult longevity in zoo‐kept carnivores	8
The historical development of zoo elephant survivorship	7
Can colored object enrichment reduce the escape behavior of captive freshwater turtles?	7
Effects of a modern exhibit design on captive tiger welfare	7
Enrichment devices for green turtles (Chelonia mydas) reared in captivity programs	7
Playful mouth‐to‐mouth interactions of belugas (Delphinapterus leucas) in managed care	7
Maximizing the potential for living cell banks to contribute to global conservation priorities	6
Comparative nutrient analysis of four species of cockroaches used as food for insectivores by life stage, species, and sex	6

Diurnal variation in serum concentrations of cortisol in captive African (Loxodonta africana) and Asian (Elephas maximus) elephants	6
Bearing fruit: Piloting a novel judgment bias task in an American black bear	6
The utility of social network analysis for informing zoo management: Changing network dynamics of a group of captive hamadryas baboons (Papio hamadryas) following an introduction of two young m	6
American alligator (Alligator mississippiensis) weight gain in captivity and implications for captive reptile body condition	6
Investigating food preference in zoo‐housed meerkats	6
Sex‐specific actuarial and reproductive senescence in zoo‐housed tiger (Panthera tigris): The importance of sub‐species for conservation	6
Genetic assessment of captive red pandas (Ailurus fulgens) in American zoos to address management separation by putative subspecies	6
Understanding sociality and behavior change associated with a nesting event in a captive flock of great white pelicans	5
Wearing the devil down: Rate of tooth wear varies between wild and captive Tasmanian devils	5
Review of threatened Malagasy freshwater fishes in zoos and aquaria: The necessity of an ex situ conservation network—A call for action	5
A comparison of staff presence and signage on zoo visitor behavior	5
Effects of GnRH agonists on testosterone and testosterone‐stimulated parameters for contraception and aggression reduction in male lion‐tailed Macaques (Macaca silenus)	5
The past, present and future of hormonal contraceptive use in managed captive female tiger populations with a focus on the current use of deslorelin acetate	5
Furred and feathered friends: How attached are zookeepers to the animals in their care?	5
Social networks research in ex situ populations: Patterns, trends, and future directions for conservation‐focused behavioral research	5
Weight management towards physiological and behavioral wellbeing for chimpanzees living under human care	5
Is the natural UV zone important for successful captive propagation of the Panther Chameleon (Furcifer pardalis); are different UVB irradiance exposures that generate a similar dose equally suc	5
Evaluation of the damage caused by in vitro culture and cryopreservation to dermal fibroblasts derived from jaguars: An approach to conservation through biobanks	5
Dietary lutein supplementation improves immunity and antioxidant status of captive Indian leopards (Panthera fusca)	4
Contextual impacts on individual and synchronous breathing rate variations in three captive odontocete groups	4
Maximum longevity and juvenile mortality in zoo‐housed mangabeys	4
Effects of Lupron and surgical castration on fecal androgen metabolite concentrations and intermale aggression in capybaras (Hydrochoerus hydrochaeris)	4
Staff perceptions of COVID‐19 impacts on wildlife conservation at a zoological institution	4
Factors affecting the behavior of captive white rhinoceros (Ceratotherium simum) and the accuracy of ad‐hoc keeper data	4
Melengestrol acetate contraceptive implant use in colobus monkeys (Colobus guereza): Patterns through time and differences in reproductive potential and live births	4
Milk composition of white rhinoceros over lactation and comparison with other Perissodactyla	4
Validation of an enzyme immunoassay for measurement of fecal dehydroepiandrosterone sulfate in gibbons and siamangs	4
Five psychological principles of codesigning conservation with (not for) communities	4
Material and food exploration by zoo‐housed animals can inform cognition and enrichment apparatus design	4
The initial steps toward the formation of somatic tissue banks and cell cultures derived from captive Antillean manatee (Trichechus manatus manatus) skin biopsies	4
Flock size and structure influence reproductive success in four species of flamingo in 540 captive populations worldwide	4
Measuring the effectiveness of using rangers to deliver a behavior change campaign on sustainable palm oil in a UK zoo	4
Fecal microbiota transplants modulate the gut microbiome of a two‐toed sloth (Choloepus didactylus)	4
Cane toad (Rhinella marina) vitamin A, vitamin E, and carotenoid kinetics	4
Sentinel behavior in captive meerkats (Suricata suricatta)	4
Reproductive cycles of neotropical boid snakes evaluated by ultrasound	4
Adaptive management in a conservation breeding program: Mimicking habitat complexities facilitates reproductive success in narrow‐headed gartersnakes (Thamnophis rufipunctatus)	4
Validating the use of fecal glucocorticoid metabolite analysis to assess the adrenocortical activity of the zoo‐housed Sichuan takin (Budorcas taxicolor tibetana)	4
Never be mute about bird welfare: Swanning around with environmental enrichment	3
The influence of welfare and bonds with animals on the job satisfaction of felid keepers in North America	3
The effects of Zoo Lights on animal welfare: A case study of great Indian hornbills at Denver Zoo	3
Adapting conservation breeding techniques using a data‐driven approach to restore the ‘Alalā (Hawaiian crow, Corvus hawaiiensis)	3
The perception of felid welfare by zookeepers in North America and the implications for zoo managers	3
Pterygodermatites nycticebi infections in golden lion tamarins (Leontopithecus rosalia rosalia) and aye‐ayes (Daubentonia madagascariensis) from a German zoo	3
Bridging conservation across the ex situ‐in situ spectrum: Insights into the reproductive ecology of the threatened narrow‐headed gartersnake (Thamnophis rufipunctatus)	3
Single or repeated immunization against GnRH fails to completely abolish spermatogenesis in dwarf bucks (Capra hircus)	3
Using social network analysis to inform on the process of one‐male‐unit formation of hamadryas baboons (Papio hamadryas) in captivity	3
Immunocontraception of male and female giraffes using the GnRH vaccine Improvac®	3
Daily activity profile of the golden mantella in the “Froggotron”—A replicated behavioral monitoring system for amphibians	3
Effects of age on sperm quality metrics in endangered Mississippi gopher frogs (Lithobates sevosus) from captive populations used for controlled propagation and reintroduction efforts	3

Spermatic profile of captive giant anteaters (Myrmecophaga tridactyla): Knowing more to preserve better	3
A new candling procedure for thick and opaque eggs and its application to avian conservation management	3
Beyond inspiration: Translating zoo and aquarium experiences into conservation behavior	3
Reasons for unfulfilled breeding and transfer recommendations in zoos and aquariums	3
Retrospective analysis of hibernation parameters and breeding success in captive Vancouver Island marmots (Marmota vancouverensis): 1997–2018	3
Case study: Modifying repetitive behavior in a polar bear (Ursus maritimus)	3
Colony composition and nutrient analysis of Polyrhachis dives ants, a natural prey of the Chinese pangolin (Manis pentadactyla)	3
Assessing the effect of interpretation design traits on zoo visitor engagement	3
Short‐term cold storage of seminal samples of the golden lancehead pitviper (Bothrops insularis)	2
Macronutrient composition of milk from two captive African elephant (Loxodonta africana) cows	2
Reproductive suppression of giraffe (Giraffa camelopardalis) under managed care using a GnRH immunological product	2
Female long‐term sperm storage results in viable offspring in the Himalayan Mountain Pitviper, Ovophis monticola	2
Survey of current group demographics and management practices of bachelor groups of western lowland gorillas (Gorilla gorilla gorilla) across North America	2
Predictors of testosterone in zoo‐managed male African elephants (Loxodonta Africana)	2
Influence of institutional attributes on fulfillment of transfer and breeding recommendations in zoos and aquariums	2
Exploration of cultural norms and behavioural beliefs about zoo animal behaviour, welfare, ethics and husbandry practices in a sample of the international zoo community	2
Growth, calcification, and photobiology of the threatened coral Acropora cervicornis in natural versus artificial light	2
Estimating the total length of Mekong giant catfish, Pangasianodon gigas, in an aquarium via stereo‐video shooting and direct linear transformation	2
Age‐based variation in calf independence, social behavior and play in a captive population of African elephant calves	2
Prolonged hypo‐salinity to control Neobenedenia spp. monogenean infection in large display aquaria	2
Ex situ breeding programs benefit from science‐based cooperative management	2
Seasonal differences in hair growth rates of captive aye‐aye, red ruffed, and black‐and‐white ruffed lemurs	2
Conservation psychology strategies for collaborative planning and impact evaluation	2
Effect of enclosure expansion on the activity budgets of eastern black‐and‐white colobus monkeys, Colobus guereza	2
Breeding history and husbandry of the Superb Bird‐of‐paradise (Lophorina superba)	2
Facilitating behavior change: Introducing the Transtheoretical Model of Behavior Change as a conservation psychology framework and tool for practitioners	2
Captive breeding challenges posed by Malaysian and Bornean Peacock‐pheasants (Polyplectron malacense and P. schleiermacheri)	2
Vaginal foreign bodies in six nonhuman primates with underlying pathological conditions	2
Magnesium concentration influences size and pulse rate in the upside‐down jellyfish, Cassiopea andromeda	2
Optimizing captive short‐beaked echidna (Tachyglossus aculeatus) fecal sample identification and hormonal analysis	2
Feed intake and dietary composition of iron (Fe), copper (Cu), vitamin E, and tannic acid of five captive black rhinoceros (Diceros bicornis) in a UK collection	2
From left to right all through the night: Characteristics of lying rest in zoo elephants	2
Evoking empathy—An overlooked role of animal statues in zoos	2
The Palearctic blackfly Simulium equinum (Diptera: Simuliidae) as a biting pest of captive nyala antelopes (Tragelaphus angasii)	1
Costs and benefits of living in a vegetated, compared with non‐vegetated, enclosure in male Japanese macaques (Macaca fuscata)	1
Putting zoo animal cancer into perspective	1
Weight as an indicator of enclosure suitability in Livingstone's fruit bats (Pteropus livingstonii)	1
Behavioral development of a captive polar bear (Ursus maritimus) cub in the maternal den	1
Historical development of the survivorship of zoo rhinoceroses—A comparative historical analysis	1
Evaluation of different skin regions derived from a postmortem jaguar, Panthera onca (Linnaeus, 1758), after vitrification for development of cryobanks from captive animals	1
Bioacoustics as a tool to monitor the estrus cycle in a female slow loris (Nycticebus sp.)	1
Observations on the use of passive integrated transponder (PIT) tags in teleosts and elasmobranchs at a public aquarium, 728 cases, 2007–2020	1
Diagnosing gastric ulcers in bottlenose dolphins (Tursiops sp.) using gastroscopy and cytology	1
The gap in technology for visitor experience in a zoo: A case study in Indonesia	1
Assessing the impact of environmental enrichment on behavior in understudied armadillo species: A case study	1
Antillean manatee calves in captive rehabilitation change vocal behavior in anticipation of feeding	1
A perspective on ungulate management and welfare assessment across the traditional zoo to large landscape spectrum	1
Successful assisted rearing and reintegration of a blue wildebeest calf into a managed herd prior to weaning	1
Evaluation of social compatibility in an all‐male group of chimpanzees (Pan troglodytes) by means of social network analysis	1
First natural breeding of the endangered dusky gopher frog (Lithobates sevosus) in captivity	1
Institutional networks in cooperative population management: Exploring patterns in transfer fulfillment	1
What is the role of the studbook in zoo and aquarium research?	1
Effects of honey locust seed pods on the behavior and nutrient intake of zoo‐housed François langurs and prehensile‐tailed porcupines	1
Behavior and adrenal physiology of Magellanic penguins (Spheniscus magellanicus) serving as ambassador animals	1
Ultrasonographic and radiographic evaluation of gestation in golden lanceheads (Bothrops insularis) in ex situ breeding programs	1
Artificial incubation and hand‐rearing of Superb Bird‐of‐paradise(Lophorina superba)	1
Visitor attachment to dolphins during an interaction programme, are there implications to dolphin behavior?	1
“The influence of olfactory enrichment on the behavior of two captive New World primates: Black‐capped capuchin (Sapajus apella) and common marmoset (Callithrix jacchus)”	1
Impact of female contraception for population management on behavior and social interactions in a captive troop of Guinea baboons (Papio papio)	1
Captive rearing of orphaned African wild dogs (Lycaon pictus) in Namibia: A case study	1
Cutaneous concentrations of 7‐dehydrocholesterol in Hoffmann's two‐toed sloths (Choloepus hoffmanni) in managed care	1
Postoccupancy evaluation of staff, visitors, and three species of animals in a zoo setting	1
Agonistic interactions and social behaviors in the Saharan Dorcas gazelle (Gazella dorcas neglecta): Using social network analysis to evaluate relationships and social structure in captive male	1
It's a sign: Animal welfare and zoo type are predictors of animal identification signage usage and quality at zoo exhibits	1
Comparison between concentration and type of intracellular cryoprotectants and the presence of sucrose for cryobanks of somatic cells derived from captive Pumas	1
Impact of animal programming on children's attitudes toward local wildlife	1
Dietary protein requirement for captive juvenile green turtles (Chelonia mydas)	1
Wing condition does not negatively impact time budget, enclosure usage, or social bonds in a flock of both full‐winged and flight‐restrained greater flamingos	1
The fate and movements of aquarium‐released giant trevally Caranx ignobilis inferred from acoustic telemetry	1
Documenting nocturnal activity of dragon‐headed katydids (Lesina blanchardi) under artificial light	1
Quantifying animals' perception of environmental predictability using anticipatory behavior	1
Grading fecal consistency in an omnivorous carnivore, the brown bear: Abandoning the concept of uniform feces	1
Knowledge‐based enrichment: Development of a novel enrichment device for captive chimpanzees	1
Distinguishing mobility and immobility when establishing species‐specific activity budgets: A case study with gorillas (Gorilla berengei berengei and Gorilla gorilla gorilla)	1
The influence of feeding routines on the behavior of zoo‐housed Sulawesi crested black macaques (Macaca nigra)	1
Factors affecting captive female giraffe stress response: Male presence, small enclosure, and low temperature	1
Visitors and observers otter‐ly influence the behavior and enclosure use of zoo‐housed giant otters	1
Individual and community‐level impacts of the unarmed all‐women Black Mamba Anti‐Poaching Unit	1
Exploring the behaviors and social preferences of a large, multigenerational herd of zoo‐housed southern white rhinoceros (Ceratotherium simum simum)	1
A modified diet to support conservation of the Atala hairstreak butterfly (Eumaeus atala Poey)	1

UV irradiance effects on komodo dragon (Varanus komodoensis) vitamin D3, egg production, and behavior: A case study	1
Endoscopy and rectal enema for fecal collection in wild sea turtles (Chelonia mydas, Eretmochelys imbricata) in a field setting	1
Connecting workplace attachment and pro‐environmental behaviors in zoo and aquarium professionals	1
The effects of a zoo environment on free‐living, native small mammal species	1
Ensiling of maple leaves and its use in winter nutrition of mantled guereza (Colobus guereza)	1
Luteal phase length, endometrial edema, and behavior differentiate post‐ovulatory events in a giant panda (Ailuropoda melanoleuca)	1
A cross‐over dietary intervention in captive cheetahs (Acinonyx jubatus): Investigating the effects of glycine supplementation on blood parameters	1
Forest access restores foraging and ranging behavior in captive sifakas	1
The Zone Overlap Index: A new measure of shared resource use in the zoo	1