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 2021-12-01 to 2025-12-01.)

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	29
Artificial incubation and hand‐rearing of Superb Bird‐of‐paradise(Lophorina superba)	21
The Use of Gonadotropin Releasing Hormone to Manage Intraspecific Agonism in a Coalition of Male Lions (Panthera leo)	20
Case study: Visual barriers reduce pacing in captive tigers	18
Increasing animal cognition research in zoos	17
The Provision of Browse and Its Impacts on the Health and Welfare of Animals at the Zoo: A Review	16
	16
Free‐ranging Southern anteater mating behavior: Contribution to Tamandua natural history	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
The Zone Overlap Index: A new measure of shared resource use in the zoo	10
Anurans or Mice: What is the Best Food Item for Young and Adults of Bothrops jararacussu (Lacerda, 1884) in Captivity?	10
ManyZoos: A New Collaborative Approach to Multi‐Institution Research in Zoos	9
Exploration of cultural norms and behavioural beliefs about zoo animal behaviour, welfare, ethics and husbandry practices in a sample of the international zoo community	9
Sex identification of birds in Taipei Zoo	9
A novel protocol for three‐dimensional mapping of sand tiger shark (Carcharias taurus) enclosure use in aquaria: Implications for management	9
The Welfare and Educational Impacts of Encounter Experiences and Displays on Zoo‐Housed Red Panda ( Ailurus fulgens )	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
Ants (Hymenoptera: Formicidae) and termites (Blattodea: Termitoidae) in the diet of wild white‐bellied pangolin (Phataginus tricuspis) in forest‐savanna habitats of Cameroon	8
Strategies for establishing and using genome resource banks to protect genetic diversity in conservation breeding programs	8
Factors affecting the behavior of captive white rhinoceros (Ceratotherium simum) and the accuracy of ad‐hoc keeper data	7
Comparing the effectiveness of flagship species in zoo interpretation videos involving dialogic‐based narrative approaches	7

Survey of current group demographics and management practices of bachelor groups of western lowland gorillas (Gorilla gorilla gorilla) across North America	6
Dusky Gopher Frog (Lithobates sevosus) Repatriation at a Reintroduction Site Through Zoo‐Led Captive‐Release Efforts	6
Breeding history and husbandry of the Raggiana Bird‐of‐paradise (Paradisaea raggiana)	6
Assessment of Vitamin D Status in Great Apes in Human Care	6
Body Mass Records of Zoo‐Managed Rhinoceros (Ceratotherium simum, Diceros bicornis, Rhinoceros unicornis) as Compared to Field Data of Free‐Ranging Specimens	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)	6
The gap in technology for visitor experience in a zoo: A case study in Indonesia	5
UV irradiance effects on komodo dragon (Varanus komodoensis) vitamin D3, egg production, and behavior: A case study	5
Effect of four eggshell repair materials on weight loss during incubation of white leghorn chicken eggs	5
Genetic diversity and structure of captive gentoo penguin populations in Japan	5
Serial ultrasonographic measurements of fetal parameters over three successive pregnancies in a captive Eastern black‐and‐white colobus monkey (Colobus guereza)	5
Variable digestibility of captive northern greater galagos (Otolemur garnettii) fed experimental “frugivorous” and “invertebrate” diets	5
Flock size and structure influence reproductive success in four species of flamingo in 540 captive populations worldwide	5
Trends in Reptile Holdings Across UK Zoos: Identification of the Factors Responsible for Declining Numbers of Venomous Snake	5
Apparent Digestibility of the Diet Provided to Crab‐Eating Fox (Cerdocyon thous) Kept Under Human Care [Diet Provided to Crab‐Eating Fox]	5
	5
Seasonal differences in hair growth rates of captive aye‐aye, red ruffed, and black‐and‐white ruffed lemurs	5
Vaginal foreign bodies in six nonhuman primates with underlying pathological conditions	5
Ultrasonographic and radiographic evaluation of gestation in golden lanceheads (Bothrops insularis) in ex situ breeding programs	5
Management of intraspecific aggression in two bull giraffes (Giraffa camelopardalis ssp. rothschildi)	5
Effects of Random Feeding Schedule on Pacing in Asiatic Lions (Panthera leo persicus)	4
Comparison between concentration and type of intracellular cryoprotectants and the presence of sucrose for cryobanks of somatic cells derived from captive Pumas	4
A comparison of staff presence and signage on zoo visitor behavior	4
UVB‐emitting LEDs for reptile lighting: Identifying the risks of nonsolar UV spectra	4
Never be mute about bird welfare: Swanning around with environmental enrichment	4
Growth Rates and Sexual Size Dimorphism in Bothrops jararacussu in Captivity (Viperidae, Crotalinae)	4
Issue Information	4
Wild origins and mitochondrial genetic diversity of Angolan Colobus monkeys (Colobus angolensis) in AZA‐accredited zoos and its implications for ex situ population management	4
Do African Savanna Elephants (Loxodonta africana) Show Interspecific Social Long‐Term Memory for Their Zoo Keepers?	4
Noninvasive Assessment of Stress and Reproduction in Captive Lions (Panthera leo) Using Fecal Hormone Analysis	4
	4
Behavioral development of a captive polar bear (Ursus maritimus) cub in the maternal den	4
Single or repeated immunization against GnRH fails to completely abolish spermatogenesis in dwarf bucks (Capra hircus)	4
Optimal Weight Loss of Pink Pigeon (Nesoenas mayeri) Eggs During Incubation	4
Investigating the Welfare of Zoo‐Housed Cryptoprocta ferox: Behavioral Observations and Hormonal Profiling	4
Body mass and growth rates in captive chimpanzees (Pan troglodytes) cared for in African wildlife sanctuaries, zoological institutions, and research facilities	4
Facilitating behavior change: Introducing the Transtheoretical Model of Behavior Change as a conservation psychology framework and tool for practitioners	4
Institutional networks in cooperative population management: Exploring patterns in transfer fulfillment	4
Predictors of testosterone in zoo‐managed male African elephants (Loxodonta Africana)	3
Age‐Related Differences in Gut Microbiome and Fecal Metabolome of Captive African Penguins (Spheniscus demersus)	3
Factors affecting captive female giraffe stress response: Male presence, small enclosure, and low temperature	3
Residual tissue magnesium concentration in jellyfish (Aurelia aurita and Cassiopea andromeda) following magnesium chloride euthanasia	3
Hatching Plasticity in Captive‐Bred Pickersgill's Reed Frog, Hyperolius pickersgilli (Raw 1982)	3
Liver and Let Die? A Retrospective Analysis of Secretarybird Mortality in European Zoos	3
Current Knowledge on Craniodental Anatomy and Dental Pathology in Golden Snub‐Nosed Monkeys (Rhinopithecus roxellana): A Comparative Review	3
The historical development of zoo elephant survivorship	3
Evoking empathy—An overlooked role of animal statues in zoos	3
Issue Information	3
Genetic diversity and relatedness in captive collared peccariesDicotyles tajacu(Linnaeus, 1758) (Cetartiodactyla: Tayassuidae) estimated by microsatellite genotyping using high‐throughput seque	3

Effects of Feeding Graded Levels of Gelatin Content on Growth, Feed Utilization and Health Status in Head‐Started Leatherback Sea Turtles (Dermochelys coriacea)	3
Does a Social Introduction Alter Cortisol in Captive Bonobos (Pan paniscus)?	3
Zoos and amphibian conservation: Evaluating the impact of “The Year of The Frog” Campaign	3
Insights Into the Reproduction and Maturity of the Spinetail Devil Ray (Mobula mobular)	3
Positive Correlation Between Fecal Estrogen and Glucocorticoid Metabolites in a Female Clouded Leopard	3
Effectiveness of Deslorelin Implants in Suppressing Egg Production in a White‐Naped Crane ( Antigone vipio ): A Case Study	3
Husbandry conditions of spotted ratfish (Hydrolagus colliei, Chimaeriformes) in aquaria for successful embryonic development and long‐term survival of juveniles	3
Food‐related substrate preference in juveniles seastar Echinaster (Othilia) brasiliensis (Müller & Troschel,1842) in captivity	3
Seasonality, Social Structure and Age Predict Conspecific Aggression in Captive Breeding Southern Ground‐Hornbills (Bucorvus leadbeateri)	3
Traumatic telson avulsion and attempted external stabilization in Atlantic horseshoe crabs (Limulus polyphemus)	3