Zoo BiologyPub Date : 2025-01-01Epub Date: 2024-10-28DOI: 10.1002/zoo.21872
Daniel G Kirsch, Anna C MacPherson, Caterina N Meyers, Sarah L Bowser, Sara M Kross
{"title":"Ambassador Animals Do Not Have a Clear Effect on Visitor Conservation Knowledge and Attitudes Toward Exotic Pets at a Zoo Exhibit.","authors":"Daniel G Kirsch, Anna C MacPherson, Caterina N Meyers, Sarah L Bowser, Sara M Kross","doi":"10.1002/zoo.21872","DOIUrl":"10.1002/zoo.21872","url":null,"abstract":"<p><p>There is relatively little work examining visitor outcomes of ambassador animal programs, such as whether these programs are educationally effective or unintentionally promote exotic pet ownership. We designed a two-way factorial experiment to test whether ambassador animals enhanced or detracted from the educational outcomes of a zoo exhibit. We surveyed 312 visitors at the Oakland Zoo at a static exhibit focused on the illegal wildlife trade. Participants were surveyed either before or after visiting the exhibit, with or without a trainer presenting either an ambassador ball python (Python regius) or yellow-naped Amazon parrot (Amazona auropalliata). The survey assessed attitudes toward conservation, knowledge of conservation behavior, and the suitability of various species, including the ambassador species, as pets. We used an ANOVA to examine 299 complete surveys for differences between experimental groups' mean responses. There were no significant differences in conservation attitudes. Subjects demonstrated more knowledge of conservation behavior after leaving the exhibit, regardless of whether or not an animal was present. While the exhibit reduced favorable attitudes toward parrots as pets, ambassador animal presence neither positively nor negatively impacted on this effect. Participants who viewed a python were more likely to indicate that they viewed a python as a good pet. However, the sample expressed overall negative attitudes toward exotic pet ownership. This study suggests that ambassadors neither enhanced learning nor unintentionally promoted exotic pets. Further research is needed to understand the role of interpretive messaging when using ambassadors in an educational context.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":" ","pages":"36-48"},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142523158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zoo BiologyPub Date : 2025-01-01Epub Date: 2024-10-29DOI: 10.1002/zoo.21878
Roshan Ings, James Edward Brereton, Graeme Dick
{"title":"Liver and Let Die? A Retrospective Analysis of Secretarybird Mortality in European Zoos.","authors":"Roshan Ings, James Edward Brereton, Graeme Dick","doi":"10.1002/zoo.21878","DOIUrl":"10.1002/zoo.21878","url":null,"abstract":"<p><p>The secretarybird (Sagittarius serpentarius) is a threatened African raptor species, and as such requires conservation attention. While the species is managed under a European Association of Zoos and Aquaria (EAZA) Ex-situ Programme (EEP), no studies of mortality are currently available. A retrospective mortality project was therefore conducted to identify the most common causes of death in captive secretarybirds, with a view to informing management decisions. Data were collected by requesting the postmortem reports from zoos where secretarybirds had died and combining this with the existing data recorded in the Zoological Information Management System. Overall, 167 birds were recorded as having died within the EEP population, of which post-mortem information was available for 51 (30.54%) individuals. Trauma was the most common cause of death identified (22 birds, 13.17%), with infection appearing as the second most prevalent cause (15 birds, 8.98%). One incidental finding at postmortem was that many (9) birds showed evidence of liver damage, with reports of bacterial hepatitis, staphylococcal infection, lesions, and dark coloration. Further research into liver complications and diet composition for secretarybirds may therefore have value in reducing mortality. Similarly, investigating strategies to reduce trauma caused by other enclosure occupants or conspecifics may have value in lengthening lifespans for this endangered species.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":" ","pages":"49-56"},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142547963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zoo BiologyPub Date : 2025-01-01Epub Date: 2024-10-07DOI: 10.1002/zoo.21871
Martin Kränzlin, Idu Azogu-Sepe, Emmanuelle Pouydebat, Christine Böhmer
{"title":"Do African Savanna Elephants (Loxodonta africana) Show Interspecific Social Long-Term Memory for Their Zoo Keepers?","authors":"Martin Kränzlin, Idu Azogu-Sepe, Emmanuelle Pouydebat, Christine Böhmer","doi":"10.1002/zoo.21871","DOIUrl":"10.1002/zoo.21871","url":null,"abstract":"<p><p>\"An elephant never forgets\" is a popular phrase that refers not only to the elephant's extraordinary ability to remember migration routes but also to its pronounced social long-term memory (SLTM). Previous studies have shown intra- and interspecies SLTM performance, but the ability of elephants to have memories of individual humans has not yet been investigated. We tested this interspecific SLTM using auditory, olfactory, and visual stimuli, each from familiar and unfamiliar persons, in two African savanna elephant (Loxodonta africana) cows living in a zoo. The two-choice object tests revealed a higher interest in sensory stimuli from familiar keepers they had not seen for 13 years than in unfamiliar people. Statistically significant differences were found for olfactory stimuli. In addition, there was significantly more interest in visual stimuli from current keepers than in stimuli from unfamiliar people. Contrary to the results of a previous study with elephants, this was not observed for olfactory stimuli. Due to the small sample size and magnitude of the influencing factors, that is, outdoor experiment, only spatial separation of the animals, these results only represent indications of the possible interspecific SLTM. Nevertheless, we were able to provide the first empirical evidence that L. africana stores information about specific people over a long period of time. Further studies with larger sample sizes, cross-modal testing, and people disliked by the elephants could provide more insights.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":" ","pages":"3-15"},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11802488/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142381694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zoo BiologyPub Date : 2025-01-01Epub Date: 2024-10-30DOI: 10.1002/zoo.21873
Louisa A Rispoli, Jessye Wojtusik, Terri L Roth
{"title":"Exploring Serum Ferritin's Connection to the Acute Phase Response in Zoo-Managed African Rhinoceroses.","authors":"Louisa A Rispoli, Jessye Wojtusik, Terri L Roth","doi":"10.1002/zoo.21873","DOIUrl":"10.1002/zoo.21873","url":null,"abstract":"<p><p>Despite serum ferritin's potential as an iron status indicator, its concentrations vary significantly throughout a black rhinoceros's (Diceros bicornis) life, sometimes irrespective of iron load. We explored acute phase response-related biomarkers, serum amyloid A (SAA) and ceruloplasmin (Cp), to better understand the mechanisms influencing serum ferritin changes in managed black rhinoceroses. The objective was to evaluate the relationships between circulating levels of ferritin, SAA, and Cp in black and white rhinoceroses (Ceratotherium simum). We analyzed banked serum samples collected serially from 11 black (n = 222) and 7 white (n = 134), rhinoceroses (rhinos) and classified samples based on SAA values: clinically healthy (< 1 mg/L), subclinical (1-7 mg/L), or clinically abnormal (> 7 mg/L). In black rhinos, serum ferritin was not different between health status categories (p = 0.5292), nor was it correlated with SAA (p = 0.4164). However, Cp activity was significantly lower in clinically healthy sera (p < 0.0001) and had a moderate positive association with SAA (r = 0.477, p < 0.0001). Among the white rhino samples, only five had SAA values greater than 1 mg/L, limiting the assessment of ferritin and Cp activity in the health context. Minor, yet significant, relationships were observed between serum ferritin and Cp activity, negative in black rhinos (r = -0.206; p = 0.0022) and positive in white rhinos (r = 0.289, p = 0.0008). Cp activity may aid in diagnosing illness in black and white rhinos, based on values observed in sera collected near the time of death. However, acute inflammatory processes do not appear to be one of the primary drivers of the high ferritin concentrations detected in some black rhinos.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":" ","pages":"16-23"},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11802482/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142547962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zoo BiologyPub Date : 2025-01-01Epub Date: 2024-11-08DOI: 10.1002/zoo.21877
Laura E Shipp, Nicole P Boisseau, Corinne P Kozlowski, Dustin W Shipp, Ashley D Franklin, Jilian M Fazio, Janine L Brown
{"title":"Positive Correlation Between Fecal Estrogen and Glucocorticoid Metabolites in a Female Clouded Leopard.","authors":"Laura E Shipp, Nicole P Boisseau, Corinne P Kozlowski, Dustin W Shipp, Ashley D Franklin, Jilian M Fazio, Janine L Brown","doi":"10.1002/zoo.21877","DOIUrl":"10.1002/zoo.21877","url":null,"abstract":"<p><p>Clouded leopards are notoriously difficult to manage under human care due to their tendency toward high stress, intersex aggression, and limited reproductive success. This case study investigated the endocrinological interplay between adrenal and ovarian steroids and describes a positive correlation between concentrations of fecal estrogen and glucocorticoid metabolites in a female clouded leopard. The female was monitored through two sampling periods approximately 16 months apart, and each data set yielded similar results using a simple linear regression model. The finding of a significant positive correlation between the two steroids represents a novel finding in felids and a hitherto unidentified potential interplay between adrenal and ovarian steroid activity. It also adds to our collective understanding of the effects of estrus on female clouded leopards, impacting conservation efforts as we encourage reproduction in this vulnerable species.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":" ","pages":"98-101"},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11802478/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142606175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zoo BiologyPub Date : 2025-01-01Epub Date: 2024-10-25DOI: 10.1002/zoo.21876
Justin Claude Rakotoarisoa, Andolalao Rakotoarison, Solonirina Rasoanantenaina, Eric Robsomanitrandrasana, Samina Sidonie Sam Edmonds, Jeanne Soamiarimampionona, Edupsie Tsimialomanana, Sebastian Wolf, Devin Edmonds
{"title":"Captive Breeding Reveals Insights Into the Ecology and Reproductive Biology of 11 Little-Known Malagasy Frog Species.","authors":"Justin Claude Rakotoarisoa, Andolalao Rakotoarison, Solonirina Rasoanantenaina, Eric Robsomanitrandrasana, Samina Sidonie Sam Edmonds, Jeanne Soamiarimampionona, Edupsie Tsimialomanana, Sebastian Wolf, Devin Edmonds","doi":"10.1002/zoo.21876","DOIUrl":"10.1002/zoo.21876","url":null,"abstract":"<p><p>Amphibians are facing an extinction crisis, with ex situ programs increasingly being used as a tool for their conservation. However, conservation efforts are often limited because we do not understand the ecological, behavioral, and life history traits of many amphibian species. Here, we report on the seasonal breeding patterns, egg-laying behavior, clutch size, and development of 11 frog species maintained at a conservation breeding facility in Andasibe, Madagascar. The frogs exhibited diverse breeding strategies aligned with life history theory. Counting the eggs in 1239 egg masses across these 11 species, we found endotrophic microhylids and terrestrial-breeding species had the smallest clutch size yet completed metamorphosis quickly, whereas species that laid eggs above or in water with exotrophic larvae had larger clutch sizes and took longer to develop. Most reproduction in captivity occurred during the warm, rainy season and followed seasonal patterns in temperature variation. Yet, Mantidactylus betsileanus bred throughout the year, and Heterixalus betsileo required additional environmental stimuli to trigger reproduction. Notably, we confirmed that Gephyromantis mitsinjo lays eggs on land with tadpoles developing terrestrially within jelly, a behavior previously theorized but which until now remained unobserved. Such observations show how captive breeding programs can be used to gain valuable data on the life history traits of species that are otherwise challenging to observe in nature. Our findings can be used to assess threats to closely related species, helping inform conservation efforts in a country harboring exceptional amphibian species richness and endemism.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":" ","pages":"24-35"},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11802484/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142509368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zoo BiologyPub Date : 2025-01-01Epub Date: 2024-11-26DOI: 10.1002/zoo.21869
D Cristina Macklem, Lauren Augustine, Mark D Wanner, Jeffery A Ettling, Trisha Crabill, Amanda S Pedigo, Chawna Schuette, Patty L Ihrig-Bueckendorf, Aja J Martin, Katie R Noble, Justin M Elden, Jeffrey T Briggler
{"title":"Egg Production, Egg Development, and Mortality of Zoo-Bred Ozark Hellbenders (Cryptobranchus alleganiensis bishopi).","authors":"D Cristina Macklem, Lauren Augustine, Mark D Wanner, Jeffery A Ettling, Trisha Crabill, Amanda S Pedigo, Chawna Schuette, Patty L Ihrig-Bueckendorf, Aja J Martin, Katie R Noble, Justin M Elden, Jeffrey T Briggler","doi":"10.1002/zoo.21869","DOIUrl":"10.1002/zoo.21869","url":null,"abstract":"<p><p>Populations of Ozark hellbenders (Cryptobranchus alleganiensis bishopi, Grobman 1943) in Missouri and Arkansas are federally listed as endangered. The Saint Louis Zoo WildCare Institute's Ron and Karen Goellner Center for Hellbender Conservation, in collaboration with the Missouri Department of Conservation and US Fish and Wildlife Service, has developed a sustainable conservation breeding and head-starting program, a priority for species recovery. Using 9 years of program data, we examined various egg production, egg development, and mortality responses of Zoo-bred Ozark hellbenders. Our results identified river of origin and breeding location as important predictors of egg production responses including average breeding female total lengths as well as brooding male clutch size, total egg count, and the estimated number of female clutches, respectively. We found that breeding group generation was a significant predictor of Zoo-bred hellbender egg development responses with hellbenders from the first breeding group generation ovipositing later and producing eggs that hatch later and develop longer than hellbenders from the second-generation breeding group. These responses are consistent with females from the first breeding group generation being larger at the time of reproduction. Breeding group generation was also a significant predictor of proportional egg and total mortality, while the proportion of hatchling mortality was best predicted by breeding location, and the proportion of larval mortality was best predicted by river of origin. Ultimately, our results provide baseline metrics for the program and identify areas for further inquiry to maximize the success of future conservation breeding and head-starting efforts at the Zoo.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":" ","pages":"57-71"},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11802487/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142717153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zoo BiologyPub Date : 2025-01-01Epub Date: 2024-10-22DOI: 10.1002/zoo.21874
Neil MacLachlan, Andrew Routh, Gordon Hunt, Alberto Barbon, Melissa Haworth, John Miller, Ann Pocknell, Eluned Price
{"title":"Diagnosis of Menopause in a Captive Sumatran Orangutan (Pongo abelii).","authors":"Neil MacLachlan, Andrew Routh, Gordon Hunt, Alberto Barbon, Melissa Haworth, John Miller, Ann Pocknell, Eluned Price","doi":"10.1002/zoo.21874","DOIUrl":"10.1002/zoo.21874","url":null,"abstract":"<p><p>Humans were long thought to be the only mammal to experience menopause, the permanent cessation of reproduction followed by a long post-reproductive lifespan. More recently, evidence has been found for the existence of menopause in other long-lived mammals, including chimpanzees and gorillas. However, orangutans, which have the longest interbirth interval of any primate, have rarely been studied in this period of their lives. In this paper, we describe clinical, ultrasound, endocrine, and histological evidence consistent with a natural menopause in a captive, previously fertile, Sumatran orangutan (Pongo abelii), aged approximately 50. Consecutive serum samples showed low levels of estradiol and high levels of follicle-stimulating hormone. Transvaginal ultrasound revealed an atrophic uterus with an antero-posterior diameter of 2.36 cm, an endometrial thickness of 2 mm, and inactive ovaries. Following this female's death from a subdural hematoma, histological examination of the ovaries showed a dense stroma with corpora albicantia, in comparison to the numerous primordial follicles seen in the ovaries of a stillborn infant female orangutan. These multiple lines of evidence suggest that Sumatran orangutans can now be added to the list of mammals which undergo a true menopause, which may ensure that females' final offspring can be reared to independence.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":" ","pages":"87-91"},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zoo BiologyPub Date : 2024-12-23DOI: 10.1002/zoo.21887
Zhi-Lin Luo, Xi-Jin Du, Jing-Yuan Yang, Tian-Peng Huang, Ying-Guang Cao, Ke Song
{"title":"Current Knowledge on Craniodental Anatomy and Dental Pathology in Golden Snub-Nosed Monkeys (Rhinopithecus roxellana): A Comparative Review.","authors":"Zhi-Lin Luo, Xi-Jin Du, Jing-Yuan Yang, Tian-Peng Huang, Ying-Guang Cao, Ke Song","doi":"10.1002/zoo.21887","DOIUrl":"https://doi.org/10.1002/zoo.21887","url":null,"abstract":"<p><p>The Sichuan golden snub-nosed monkey (Rhinopithecus roxellana) is a rare and endangered species endemic to China that occupies a particularly important position in the evolutionary history of Rhinopithecus species. Oral health is a crucial aspect of overall well-being in both humans and nonhuman primates. We review the current limited literature on the dental characteristics and dental pathologies related to the golden snub-nosed monkey, based on skeleton data and morphological evidence. The results indicated that this species possesses dental characteristics that are remarkably different from that of other primates such as larger-sized molars with blunt cusp crests, tiny incisor teeth, and strong mandibles with well-developed masticatory muscles. From limited research, dental diseases include caries, periodontal diseases, tooth loss, tooth wear, and other diseases, which can be found in most primates, including golden snub-nosed monkeys. In conclusion, these physiological features have gradually adapted to different environments to meet the requirements of their function. Understanding the tooth characteristics and dental health status of R. roxellana can provide valuable insights into their evolutionary history, dietary habits, and overall health, which is of great significance for the conservation of the entire population. An epidemiological survey and safe and effective inspection methods of the dental health of golden snub-nosed monkeys should be conducted to facilitate conservation behaviors that presented in the future. It is also recommended that zoos link diet and dental health to improve animal welfare.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigating the Welfare of Zoo-Housed Cryptoprocta ferox: Behavioral Observations and Hormonal Profiling.","authors":"Giovanna Marliani, Silvia Calamandrei, Giovanni Buonaiuto, Pier Attilio Accorsi, Camillo Sandri, Caterina Spiezio","doi":"10.1002/zoo.21884","DOIUrl":"https://doi.org/10.1002/zoo.21884","url":null,"abstract":"<p><p>The global decline of species necessitates intensive conservation efforts, including ex-situ breeding programs to safeguard endangered populations. However, managing welfare and reproduction in zoological gardens can present several challenges. This study aims to explore behaviors and endocrinological responses of two specimens of fossa (Cryptoprocta ferox) under human care. One hundred and twenty hours of observation through focal animal sampling continuous recording and 67 fecal samples were collected. From fecal samples, cortisol (FCM), progesterone (FPM), and testosterone (FTM) metabolites' concentrations were analyzed using Radio Immuno Assay. According to our results, higher FTM (p < 0.05) and FPM levels at the beginning of the study, showing a potential alignment with the breeding season. When the male entered the female outdoor area, he recorded longer durations of seeking and marking behaviors (p ≤ 0.01), along with lower FCM levels (p < 0.05), suggesting an enriching effect. In the same period, the female's FCM level was higher (p ≤ 0.01), indicating potential stress. When both animals were in their respective outdoor areas, the FCM level of the female remained significantly higher (p < 0.05), and the male showed a peak in pacing duration (p < 0.01), implying a potential stress or frustration status. In her indoor area, the female exhibited significantly shorter durations of locomotion, marking, and seeking (p < 0.01) and did not show any abnormal behavior, likely due to the reduced complexity of the environment. However, we cannot exclude that her complete visual and olfactory separation from the male and visitors may also have contributed to a decrease in her overall stress levels. The findings highlight the interplay between hormonal fluctuations and behavioral responses in the two zoo-housed fossa, providing essential insights for fostering their well-being and facilitating conservation efforts.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142855809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}