OOIR: Observatory of International Research

Papers

(The TQCC of Zoo Biology is 3. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-11-01 to 2025-11-01.)

Article	Citations
Conservation psychology strategies for collaborative planning and impact evaluation	31
Ambassador Animals Do Not Have a Clear Effect on Visitor Conservation Knowledge and Attitudes Toward Exotic Pets at a Zoo Exhibit	27
The Use of Gonadotropin Releasing Hormone to Manage Intraspecific Agonism in a Coalition of Male Lions (Panthera leo)	19
Artificial incubation and hand‐rearing of Superb Bird‐of‐paradise(Lophorina superba)	19
Case study: Visual barriers reduce pacing in captive tigers	17
Increasing animal cognition research in zoos	16
The Provision of Browse and Its Impacts on the Health and Welfare of Animals at the Zoo: A Review	16
	14
Free‐ranging Southern anteater mating behavior: Contribution to Tamandua natural history	13
	13
Impacts of the COVID‐19 pandemic on population management in AZA	12
What is the role of the studbook in zoo and aquarium research?	12
A cross‐over dietary intervention in captive cheetahs (Acinonyx jubatus): Investigating the effects of glycine supplementation on blood parameters	12
An evaluation of DNA sample source and molecular markers to determine gender in the short‐beaked echidna (Tachyglossus aculeatus)	11
Ants (Hymenoptera: Formicidae) and termites (Blattodea: Termitoidae) in the diet of wild white‐bellied pangolin (Phataginus tricuspis) in forest‐savanna habitats of Cameroon	10
Costs and benefits of living in a vegetated, compared with non‐vegetated, enclosure in male Japanese macaques (Macaca fuscata)	10
Comparing the effectiveness of flagship species in zoo interpretation videos involving dialogic‐based narrative approaches	9
Anurans or Mice: What is the Best Food Item for Young and Adults of Bothrops jararacussu (Lacerda, 1884) in Captivity?	9
Strategies for establishing and using genome resource banks to protect genetic diversity in conservation breeding programs	8
A novel protocol for three‐dimensional mapping of sand tiger shark (Carcharias taurus) enclosure use in aquaria: Implications for management	8
The Zone Overlap Index: A new measure of shared resource use in the zoo	8
Exploration of cultural norms and behavioural beliefs about zoo animal behaviour, welfare, ethics and husbandry practices in a sample of the international zoo community	8
Effects of Substrate Provision and Associated Cleaning Practices on Welfare Indicators in Eastern Long‐Nosed Vipers (Vipera ammodytes meridionalis) During Growth and Development	8
Sex identification of birds in Taipei Zoo	7
ManyZoos: A New Collaborative Approach to Multi‐Institution Research in Zoos	7

Factors affecting the behavior of captive white rhinoceros (Ceratotherium simum) and the accuracy of ad‐hoc keeper data	6
Survey of current group demographics and management practices of bachelor groups of western lowland gorillas (Gorilla gorilla gorilla) across North America	6
Breeding history and husbandry of the Raggiana Bird‐of‐paradise (Paradisaea raggiana)	6
Impact of Animal Encounter Modality and Species on Zoo Visitor Knowledge, Concern, and Conservation Intent	6
Sex determination by ultrasonography prior to artificial breeding of the pufferfish Arothron manilensis (Tetraodontiformes, Tetraodontidae)	5
Flock size and structure influence reproductive success in four species of flamingo in 540 captive populations worldwide	5
Effect of four eggshell repair materials on weight loss during incubation of white leghorn chicken eggs	5
Serial ultrasonographic measurements of fetal parameters over three successive pregnancies in a captive Eastern black‐and‐white colobus monkey (Colobus guereza)	5
Vaginal foreign bodies in six nonhuman primates with underlying pathological conditions	5
Dusky Gopher Frog (Lithobates sevosus) Repatriation at a Reintroduction Site Through Zoo‐Led Captive‐Release Efforts	5
UV irradiance effects on komodo dragon (Varanus komodoensis) vitamin D3, egg production, and behavior: A case study	5
Seasonal differences in hair growth rates of captive aye‐aye, red ruffed, and black‐and‐white ruffed lemurs	5
Variable digestibility of captive northern greater galagos (Otolemur garnettii) fed experimental “frugivorous” and “invertebrate” diets	5
Assessment of Vitamin D Status in Great Apes in Human Care	5
Body Mass Records of Zoo‐Managed Rhinoceros (Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis) as Compared to Field Data of Free‐Ranging Specimens	5
The gap in technology for visitor experience in a zoo: A case study in Indonesia	5
Prevalence of regurgitation and reingestion and occurrence of coprophagy in the North American AZA Gorilla (Gorilla gorilla gorilla) population	5
	5
Institutional networks in cooperative population management: Exploring patterns in transfer fulfillment	4
	4
Do African Savanna Elephants (Loxodonta africana) Show Interspecific Social Long‐Term Memory for Their Zoo Keepers?	4
Never be mute about bird welfare: Swanning around with environmental enrichment	4
Management of intraspecific aggression in two bull giraffes (Giraffa camelopardalis ssp. rothschildi)	4
Single or repeated immunization against GnRH fails to completely abolish spermatogenesis in dwarf bucks (Capra hircus)	4
Growth Rates and Sexual Size Dimorphism in Bothrops jararacussu in Captivity (Viperidae, Crotalinae)	4
Issue Information	4
Facilitating behavior change: Introducing the Transtheoretical Model of Behavior Change as a conservation psychology framework and tool for practitioners	4
Trends in Reptile Holdings Across UK Zoos: Identification of the Factors Responsible for Declining Numbers of Venomous Snake	4
Genetic diversity and structure of captive gentoo penguin populations in Japan	4
Behavioral development of a captive polar bear (Ursus maritimus) cub in the maternal den	4
Effects of Random Feeding Schedule on Pacing in Asiatic Lions (Panthera leo persicus)	4
Noninvasive Assessment of Stress and Reproduction in Captive Lions (Panthera leo) Using Fecal Hormone Analysis	4
Ultrasonographic and radiographic evaluation of gestation in golden lanceheads (Bothrops insularis) in ex situ breeding programs	4
Apparent Digestibility of the Diet Provided to Crab‐Eating Fox (Cerdocyon thous) Kept Under Human Care [Diet Provided to Crab‐Eating Fox]	4
Body mass and growth rates in captive chimpanzees (Pan troglodytes) cared for in African wildlife sanctuaries, zoological institutions, and research facilities	3
Investigating the Welfare of Zoo‐Housed Cryptoprocta ferox: Behavioral Observations and Hormonal Profiling	3
Optimal Weight Loss of Pink Pigeon (Nesoenas mayeri) Eggs During Incubation	3
Evoking empathy—An overlooked role of animal statues in zoos	3
Liver and Let Die? A Retrospective Analysis of Secretarybird Mortality in European Zoos	3
Residual tissue magnesium concentration in jellyfish (Aurelia aurita and Cassiopea andromeda) following magnesium chloride euthanasia	3
Factors affecting captive female giraffe stress response: Male presence, small enclosure, and low temperature	3
Positive Correlation Between Fecal Estrogen and Glucocorticoid Metabolites in a Female Clouded Leopard	3
The historical development of zoo elephant survivorship	3
Wild origins and mitochondrial genetic diversity of Angolan Colobus monkeys (Colobus angolensis) in AZA‐accredited zoos and its implications for ex situ population management	3
A comparison of staff presence and signage on zoo visitor behavior	3
Husbandry conditions of spotted ratfish (Hydrolagus colliei, Chimaeriformes) in aquaria for successful embryonic development and long‐term survival of juveniles	3
Zoos and amphibian conservation: Evaluating the impact of “The Year of The Frog” Campaign	3
Current Knowledge on Craniodental Anatomy and Dental Pathology in Golden Snub‐Nosed Monkeys (Rhinopithecus roxellana): A Comparative Review	3
Age‐Related Differences in Gut Microbiome and Fecal Metabolome of Captive African Penguins (Spheniscus demersus)	3
Issue Information	3

UVB‐emitting LEDs for reptile lighting: Identifying the risks of nonsolar UV spectra	3
Comparison between concentration and type of intracellular cryoprotectants and the presence of sucrose for cryobanks of somatic cells derived from captive Pumas	3
Predictors of testosterone in zoo‐managed male African elephants (Loxodonta Africana)	3
Insights Into the Reproduction and Maturity of the Spinetail Devil Ray (Mobula mobular)	3
Traumatic telson avulsion and attempted external stabilization in Atlantic horseshoe crabs (Limulus polyphemus)	3
Genetic diversity and relatedness in captive collared peccariesDicotyles tajacu(Linnaeus, 1758) (Cetartiodactyla: Tayassuidae) estimated by microsatellite genotyping using high‐throughput seque	3
Seasonality, Social Structure and Age Predict Conspecific Aggression in Captive Breeding Southern Ground‐Hornbills (Bucorvus leadbeateri)	3