59 citations as recorded by crossref.

1. Steroid hormone profile in female polar bears (Ursus maritimus) L. Gustavson et al. https://doi.org/10.1007/s00300-015-1682-3
2. Measurement of Salivary Cortisol in Two New World Primate Species M. Stocker et al. https://doi.org/10.3390/biology12091181
3. Linking Glucocorticoid Variations to Monthly and Daily Behavior in a Wild Endangered Neotropical Primate (Leontopithecus Chrysopygus) O. Kaisin et al. https://doi.org/10.2139/ssrn.4156594
4. Puberty, ovarian cycle, pregnancy, and postpartum ovulation in captive Sichuan golden monkeys ( Rhinopithecus roxellana ) based on changes in urinary and fecal gonadal steroid metabolites . Muren et al. https://doi.org/10.1016/j.theriogenology.2016.08.020
5. Testing the Effect of Medical Positive Reinforcement Training on Salivary Cortisol Levels in Bonobos and Orangutans V. Behringer et al. https://doi.org/10.1371/journal.pone.0108664
6. Non-Invasive Measurement of Thyroid Hormones in Domestic Rabbits M. Chmurska-Gąsowska et al. https://doi.org/10.3390/ani11051194
7. A composite menstrual cycle of captive orangutans, with associated hormonal and behavioral variability L. Durgavich et al. https://doi.org/10.1002/ajp.23420
8. Linking glucocorticoid variations to monthly and daily behavior in a wild endangered neotropical primate O. Kaisin et al. https://doi.org/10.1002/ajp.23503
9. Emerging indicators of fish welfare in aquaculture M. Barreto et al. https://doi.org/10.1111/raq.12601
10. Fecal thyroid hormones allow for the noninvasive monitoring of energy intake in capuchin monkeys F. Schaebs et al. https://doi.org/10.1530/JOE-16-0152
11. Measurement of testosterone and cortisol metabolites and luteinising hormone in captive southern hairy-nosed wombat (Lasiorhinus latifrons) urine Z. Du et al. https://doi.org/10.1016/j.ygcen.2017.06.001
12. Seasonal drivers of faecal glucocorticoid metabolite concentrations in an African strepsirrhine primate, the thick-tailed greater galago (Otolemur crassicaudatus) C. Long et al. https://doi.org/10.1093/conphys/coab081
13. The quantification of reproductive hormones in the hair of captive adult brown bears and their application as indicators of sex and reproductive state M. Cattet et al. https://doi.org/10.1093/conphys/cox032
14. Hormonal correlates of life history characteristics in wild female Colobus vellerosus J. Vayro et al. https://doi.org/10.1007/s10329-016-0551-1
15. Quality of hematology and clinical chemistry results in laboratory and zoo nonhuman primates: Effects of the preanalytical phase. A review F. Granat et al. https://doi.org/10.1111/jmp.12666
16. Validation of a non-invasive tool for monitoring adrenocortical activity in fat-tailed dunnarts (Sminthopsis crassicaudata) A. Bueno-Pedraz et al. https://doi.org/10.1071/AM25016
17. Monitoring menstrual cycle, gestation and lactation by measuring urinary oestradiol and progesterone in the captive golden snub-nosed monkey (Rhinopithecus roxellanae) W. Chen et al. https://doi.org/10.1016/j.anireprosci.2017.03.018
18. Reproductive behaviour, testis size and faecal androgen metabolite concentrations in the African lesser bushbaby J. Scheun et al. https://doi.org/10.1111/jzo.12420
19. Analytical and biological validation of a noninvasive measurement of glucocorticoid metabolites in feces of Geoffroy's spider monkeys (Ateles geoffroyi) J. Damm et al. https://doi.org/10.1002/ajp.23598
20. Rank‐dependent grooming patterns and cortisol alleviation in Barbary macaques R. Sonnweber et al. https://doi.org/10.1002/ajp.22391
21. Simultaneous measurement of endogenous steroid hormones and their metabolites with LC–MS/MS in faeces of a New World primate species, Cebus capucinus A. Weltring et al. https://doi.org/10.1016/j.physbeh.2011.09.004
22. Gaps to Address in Ecological Studies of Temperament and Physiology E. McMahon & S. Cavigelli https://doi.org/10.1093/icb/icab118
23. Noninvasive measurements of ovarian activity in Beira antelope (Dorcatragus megalotis) T. Wolf et al. https://doi.org/10.1111/rda.13351
24. Individual, social, and environmental factors affecting salivary and fecal cortisol levels in captive pied tamarins (Saguinus bicolor) E. Price et al. https://doi.org/10.1002/ajp.23033
25. Fur color change and hormonal development in captive females of northern white-cheeked (Nomascus leucogenys) and buff-cheeked (Nomascus gabriellae) gibbons P. Bolechová et al. https://doi.org/10.1016/j.ygcen.2019.113210
26. The relationship between physical injury, body condition and stress‐related hormone concentrations in free‐ranging giraffes T. Wolf et al. https://doi.org/10.2981/wlb.00460
27. Analytical validation of an Enzyme Immunoassay for the measurement of urinary oxytocin in dogs and wolves F. Schaebs et al. https://doi.org/10.1016/j.ygcen.2019.05.015
28. Measuring urofecal glucocorticoid metabolites in broiler chicken: a noninvasive tool for assessing stress as a marker of welfare T. Wolf et al. https://doi.org/10.1016/j.psj.2024.104162
29. Association between stress and bilateral symmetrical alopecia in free-ranging Formosan macaques in Mt. Longevity, Taiwan C. Chen et al. https://doi.org/10.1038/s41598-021-90725-2
30. Non-invasive monitoring of glucocorticoid metabolite concentrations in urine and faeces of the Sungazer (Smaug giganteus) J. Scheun et al. https://doi.org/10.7717/peerj.6132
31. Non-invasive monitoring of physiological markers in primates V. Behringer & T. Deschner https://doi.org/10.1016/j.yhbeh.2017.02.001
32. Assessing the Effects of Tourist Provisioning on the Health of Wild Barbary Macaques in Morocco L. Maréchal et al. https://doi.org/10.1371/journal.pone.0155920
33. Circadian Rhythms of Urinary Cortisol Levels Vary Between Individuals in Wild Male Chimpanzees: A Reaction Norm Approach R. Sonnweber et al. https://doi.org/10.3389/fevo.2018.00085
34. Insights from evolutionarily relevant models for human ageing M. Emery Thompson et al. https://doi.org/10.1098/rstb.2019.0605
35. Behavioral and endocrine responses to season and social dynamics of captive male southern hairy-nosed wombats (Lasiorhinus latifrons) Z. Du et al. https://doi.org/10.1016/j.ygcen.2018.01.021
36. A non-invasive method to assess the reproductive status of the European badger (Meles meles) from urinary sex-steroid metabolites N. Sugianto et al. https://doi.org/10.1016/j.ygcen.2020.113655
37. Female reproductive activity and its endocrine correlates in the African lesser bushbaby, Galago moholi J. Scheun et al. https://doi.org/10.1007/s00360-015-0947-z
38. Validating the use of dermal secretion as a matrix for monitoring glucocorticoid concentrations in African amphibian species J. Scheun et al. https://doi.org/10.1093/conphys/coz022
39. Using an on-site laboratory for fecal steroid analysis in wild white-faced capuchins J. Beehner et al. https://doi.org/10.1016/j.ygcen.2022.114109
40. The impact of age-class and social context on fecal glucocorticoid metabolite levels in free-ranging male giraffes T. Wolf et al. https://doi.org/10.1016/j.ygcen.2017.09.022
41. Salivary alpha-amylase enzyme is a non-invasive biomarker of acute stress in Japanese macaques (Macaca fuscata) N. Broche et al. https://doi.org/10.1007/s10329-019-00757-6
42. Diurnal variation of salivary cortisol in captive African elephants (Loxodonta africana) under routine management conditions and in relation to a translocation event S. Hambrecht et al. https://doi.org/10.1002/zoo.21537
43. Reproductive and Stress Response Hormones of the Critically Endangered Southern Muriqui (Brachyteles arachnoides: Atelidae) Under Captive Conditions A. Lima et al. https://doi.org/10.1007/s10764-021-00240-4
44. Testing the role of testosterone versus estrogens in mediating reproductive transitions in female rhesus macaques D. Lee et al. https://doi.org/10.1016/j.yhbeh.2022.105123
45. Simultaneous investigation of urinary and faecal glucocorticoid metabolite concentrations reveals short- versus long-term drivers of HPA-axis activity in a wild primate (Papio ursinus) C. Christensen et al. https://doi.org/10.1016/j.ygcen.2022.113985
46. Time-lag of urinary and salivary cortisol response after a psychological stressor in bonobos (Pan paniscus) J. Verspeek et al. https://doi.org/10.1038/s41598-021-87163-5
47. Non-invasive hormonal characterization of the ovarian cycle, pregnancy, and seasonal anestrus of the female addra gazelle (Nanger dama ruficollis) J. Wojtusik et al. https://doi.org/10.1016/j.theriogenology.2017.02.019
48. Age and socially related changes in fecal androgen metabolite concentrations in free-ranging male giraffes T. Wolf et al. https://doi.org/10.1016/j.ygcen.2017.09.028
49. Hormonal responses to mating competition in male Tonkean macaques B. Thierry et al. https://doi.org/10.1016/j.yhbeh.2023.105395
50. Effects of Positive Reinforcement Training and Novel Object Exposure on Salivary Cortisol Levels under Consideration of Individual Variation in Captive African Elephants (Loxodonta africana) S. Hambrecht et al. https://doi.org/10.3390/ani11123525
51. Development and validation of a high-resolution mass-spectrometry–based method to study the long-term stability of natural and synthetic glucocorticoids in faeces N. De Clercq et al. https://doi.org/10.1016/j.chroma.2014.02.033
52. Chemical signals in terrestrial vertebrates: search for design features P. Apps et al. https://doi.org/10.1039/C5NP00029G
53. Fecal glucocorticoid metabolites and assay validation: Stress response evaluation in captive brown howler monkeys (Alouatta clamitans) T. Eleonora Madeira Buti et al. https://doi.org/10.1111/jmp.12345
54. Validating a non-invasive technique for monitoring physiological stress in the samango monkey J. Scheun et al. https://doi.org/10.4102/ojvr.v87i1.1720
55. Age-related Changes in Dehydroepiandrosterone-sulfate in Black-and-gold Howler Monkeys (Alouatta caraya) J. Melo et al. https://doi.org/10.1007/s10764-025-00509-y
56. Non-invasive evaluation of stress hormone responses in a captive population of sugar gliders (Petaurus breviceps) J. Scheun et al. https://doi.org/10.1071/AM18044
57. Measuring Faecal Glucocorticoid Metabolite Concentrations as an Indicator of Stress in Blue Wildebeest (Connochaetes taurinus) T. Wolf et al. https://doi.org/10.3957/056.051.0090
58. Analysis of different biological matrices for glucocorticoid detection in wild Cervidae and Bovidae from Europe and North America: a review V. Barukčić et al. https://doi.org/10.1186/s12917-025-04678-z
59. Monitoring ovarian cycle activity via progestagens in urine and feces of female mountain gorillas: A comparison of EIA and LC–MS measurements S. Habumuremyi et al. https://doi.org/10.1002/ajp.22220