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Zoo Biology

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https://www.readbyqxmd.com/read/29210099/behavioral-and-hormonal-responses-to-the-availability-of-forage-material-in-western-lowland-gorillas-gorilla-gorilla-gorilla
#1
Grace Fuller, Anna Murray, Melissa Thueme, Molly McGuire, Jennifer Vonk, Stephanie Allard
We investigated how forage material affects indicators of welfare in three male Western lowland gorillas (Gorilla gorilla gorilla) at the Detroit Zoo. In addition to their maintenance diet and enrichment foods, the gorillas generally received forage material four times a week. From this baseline, we systematically manipulated how much forage material the group received on a weekly basis, with either daily or bi (twice)-weekly presentation of browse (mulberry, Morus sp.) or alfalfa hay. We collected behavioral data (60 hr per gorilla) and measured fecal glucocorticoid metabolites (FGM)...
December 6, 2017: Zoo Biology
https://www.readbyqxmd.com/read/29193268/what-role-does-heritability-play-in-transgenerational-phenotypic-responses-to-captivity-implications-for-managing-captive-populations
#2
Stephanie K Courtney Jones, Phillip G Byrnea
Animals maintained in captivity exhibit rapid changes in phenotypic traits, which may be maladaptive for natural environments. The phenotype can shift away from the wild phenotype via transgenerational effects, with the environment experienced by parents influencing the phenotype and fitness of offspring. There is emerging evidence that controlling transgenerational effects could help mitigate the effects of captivity, improving the success of captively bred animals post release. However, controlling transgenerational effects requires knowledge of the mechanisms driving transgenerational changes...
November 28, 2017: Zoo Biology
https://www.readbyqxmd.com/read/29193216/in-pursuit-of-peak-animal-welfare-the-need-to-prioritize-the-meaningful-over-the-measurable
#3
REVIEW
Jake S Veasey
Despite the diversity of animal welfare definitions, most recognise the centrality of the feelings of animals which are currently impossible to measure directly. As a result, animal welfare assessment is heavily reliant upon the indirect measurement of factors that either affect what animals feel, or are effected by how they feel. Physiological and health orientated measures have emerged as popular metrics for assessing welfare because they are quantifiable, can effect and be affected by how animals feel and have merits regardless of their relationship to the feelings of animals...
November 28, 2017: Zoo Biology
https://www.readbyqxmd.com/read/29148093/keeping-and-breeding-the-rescued-sunda-pangolins-manis-javanica-in-captivity
#4
Fuhua Zhang, Jiaming Yu, Shibao Wu, Shaoshan Li, Cuiyun Zou, Qiaoyun Wang, Ruyong Sun
The Sunda pangolin (Manis javanica Desmarest, 1822) is a Critically Endangered species. Given that this species lacks effective policies for in situ conservation and prevention of poaching in the wild, ex situ conservation and a captive breeding program are urgently needed to save this species from extinction. However, techniques for the maintenance and captive breeding of pangolins have not been well developed. In June 2010, we established the Pangolin Research Base for Artificial Rescue and Conservation Breeding of South China Normal University (PRB-SCNU)...
November 17, 2017: Zoo Biology
https://www.readbyqxmd.com/read/29134680/vocal-activities-reflect-the-temporal-distribution-of-bottlenose-dolphin-social-and-non-social-activity-in-a-zoological-park
#5
Alice Lima, Alban Lemasson, Martin Boye, Martine Hausberger
Under natural conditions bottlenose dolphins (Tursiops truncatus) spend their time mostly feeding and then travelling, socializing, or resting. These activities are not randomly distributed, with feeding being higher in early morning and late afternoon. Social activities and vocal behavior seem to be very important in dolphin daily activity. This study aimed to describe the activity time-budget and its relation to vocal behavior for dolphins in a zoological park. We recorded behaviors and vocalizations of six dolphins over 2 months...
November 14, 2017: Zoo Biology
https://www.readbyqxmd.com/read/29134672/quantitative-aspects-of-the-ruminating-process-in-giraffes-giraffa-camelopardalis-fed-with-different-diets
#6
Dominik Schüßler, Hartmut Greven
Giraffes are ruminants feeding on fresh browse and twigs in the wild, but in zoos, their diet is mainly based on alfalfa hay, grains, and pellets occasionally supplemented by twigs and foliage. These diets, which differ in composition and digestibility, affect the behavior of the animals, tooth wear patterns, and chewing efficiency. We quantified several parameters of the rumination process in ten zoo housed giraffes of different sexes and ages fed either with alfalfa hay, fresh browse, or a combination of both...
November 14, 2017: Zoo Biology
https://www.readbyqxmd.com/read/29120094/visitor-effect-on-the-behavior-of-a-group-of-spider-monkeys-ateles-geoffroyi-maintained-at-an-island-in-lake-catemaco-veracruz-mexico
#7
Sergio Pérez-Galicia, Manuel Miranda-Anaya, Domingo Canales-Espinosa, Jairo Muñoz-Delgado
We analyzed the effect of human visitors on the behavior of a group of spider monkeys (Ateles geoffroyi) kept on a small tourist island. Although the spider monkey is a common species in zoos, there are very few specific studies on visitor effects on these monkeys. We conducted behavioral observations on the group of spider monkeys to evaluate the effect of visitors. We also used actimetry devices to measure the variations in the spider monkeys' locomotor activity associated with human presence. With regard to the effect on behavior, we found an increase in self-directed behaviors and a decrease in vocalization, both associated with human presence...
November 9, 2017: Zoo Biology
https://www.readbyqxmd.com/read/29105825/improved-capture-of-stable-flies-diptera-muscidae-by-placement-of-knight-stick-sticky-fly-traps-protected-by-electric-fence-inside-animal-exhibit-yards-at-the-smithsonian-s-national-zoological-park
#8
Jerome A Hogsette, Gregory A Ose
Stable flies are noxious blood-feeding pests of exotic animals at zoological parks, inflicting painful bites, and causing discomfort to animals. Stable fly management is difficult because of the flies' tendency to remain on the host animals only when feeding. Non-toxic traps can be efficient but traps placed around exhibit perimeters captured fewer-than-expected numbers of flies. By surrounding traps with square electric fence enclosures, traps could be placed in the exhibits with the host animals and compared with an equal number of traps placed along perimeter fences...
November 5, 2017: Zoo Biology
https://www.readbyqxmd.com/read/29105815/mate-choice-screening-in-captive-solitary-carnivores-the-role-of-male-behavior-and-cues-on-mate-preference-and-paternity-in-females-of-a-model-species-american-mink-neovison-vison
#9
Christina Lehmkuhl Noer, Thorsten Johannes Skovbjerg Balsby, Razvan Anistoroaei, Mikkel Stelvig, Torben Dabelsteen
Mate choice studies suggest that choosy females benefit from increased fecundity, litter size, and offspring survival. Thus, providing females with the opportunity to choose among potential mates, deemed genetically suitable based on studbook data, might improve breeding management in production and zoo animals and thereby the sustainability of captive populations. Investigating mate preference via odor from potential mates before animal transfer is a proposed strategy for incorporating mate choice into breeding management...
November 5, 2017: Zoo Biology
https://www.readbyqxmd.com/read/28906018/normal-hematology-and-serum-chemistry-of-northern-fur-seals-callorhinus-ursinus-in-captivity
#10
Kaoru Kohyama, Yasuo Inoshima
Northern fur seals (Callorhinus ursinus) are endemic to the North Pacific Ocean. They were hunted for their fur and became endangered in the late 1800s, but their populations recovered following the introduction of protection laws. Recently, populations have been decreasing again, although the reasons are unclear. For individuals that are bred and reared in captivity as part of ex situ conservation projects, details of blood characteristics are essential to ensure good health. However, the normal ranges of hematology and serum chemistry of captive northern fur seals have not been defined...
September 2017: Zoo Biology
https://www.readbyqxmd.com/read/28901667/variables-affecting-the-manifestation-of-and-intensity-of-pacing-behavior-a-preliminary-case-study-in-zoo-housed-polar-bears
#11
Isabelle T Cless, Kristen E Lukas
High-speed video analysis was used to quantify two aspects of gait in 10 zoo-housed polar bears. These two variables were then examined as to how they differed in the conditions of pacing versus locomoting for each bear. Percent difference calculations measured the difference between pacing and locomoting data for each bear. We inferred that the higher the percent difference between pacing and locomoting in a given subject, the more intense the pacing may be. The percent difference values were analyzed alongside caregiver survey data defining the locations, frequency, and anticipatory nature of pacing in each bear, as well as each bear's age and sex, to determine whether any variables were correlated...
September 2017: Zoo Biology
https://www.readbyqxmd.com/read/28901642/impact-of-mimicking-natural-dispersion-on-breeding-success-of-captive-north-american-cheetahs-acinonyx-jubatus
#12
Sierra J Gillman, Karen Ziegler-Meeks, Carol Eager, Thomas A Tenhundfeld, Wendy Shaffstall, Mary Jo Stearns, Adrienne E Crosier
This paper examines the effects of transfer away from natal facility and littermate presence on cheetah breeding success in the AZA Species Survival Plan (SSP) population. Transfer and breeding history data for captive males and females were gathered from seven and four AZA SSP breeding facilities, respectively, to identify factors influencing breeding success. The results indicate that transfer history (p = 0.032), age at transfer (p = 0.013), and female littermate presence/absence (p = 0.04) was associated with breeding success, with females transferred away from their natal facility before sexual maturity and without littermates present accounting for the highest breeding success...
September 2017: Zoo Biology
https://www.readbyqxmd.com/read/28901631/equine-behavioral-enrichment-toys-as-tools-for-non-invasive-recovery-of-viral-and-host-dna
#13
Peter A Seeber, Sanatana E Soilemetzidou, Marion L East, Chris Walzer, Alex D Greenwood
Direct collection of samples from wildlife can be difficult and sometimes impossible. Non-invasive remote sampling for the purpose of DNA extraction is a potential tool for monitoring the presence of wildlife at the individual level, and for identifying the pathogens shed by wildlife. Equine herpesviruses (EHV) are common pathogens of equids that can be fatal if transmitted to other mammals. Transmission usually occurs by nasal aerosol discharge from virus-shedding individuals. The aim of this study was to validate a simple, non-invasive method to track EHV shedding in zebras and to establish an efficient protocol for genotyping individual zebras from environmental DNA (eDNA)...
September 2017: Zoo Biology
https://www.readbyqxmd.com/read/28901587/serum-estradiol-and-progesterone-profiles-during-estrus-pseudopregnancy-and-active-gestation-in-steller-sea-lions
#14
Renae Sattler, Lori Polasek
While the proximate driver behind the decline of the Western stock of Steller sea lions (Eumetopias jubatus, >80% since 1970s) is likely multifactorial, the population reduction may have been powered by a decrease in fecundity. A harvest of Steller sea lions in the 1970s and 80s revealed a 30% reduction in the proportion of pregnant females from early (October-November) to late gestation (April-May). Identification and quantification of these reproductive failures are difficult when we lack species-specific data on endocrinology associated with discrete stages of the reproductive cycle (i...
September 2017: Zoo Biology
https://www.readbyqxmd.com/read/28901580/feeding-live-invertebrate-prey-in-zoos-and-aquaria-are-there-welfare-concerns
#15
REVIEW
Martha Keller
Invertebrates constitute more than 90% of all species on earth, however, as a rule, humans do not regard invertebrates as creatures that can suffer and they are generally seen as creatures that should be eliminated. As a result, the importance of their welfare may be grossly unappreciated. For instance, the feeding of live food is often viewed as a good method of enrichment and invertebrates are commonly used as live prey in many zoological facilities. As a result, zoos may send mixed messages to their patrons in that welfare is considered only for the invertebrates that are part of their zoological collection and not necessarily for the invertebrates used as feed...
September 2017: Zoo Biology
https://www.readbyqxmd.com/read/28804950/non-invasive-assessment-of-adrenocortical-function-as-a-measure-of-stress-in-the-endangered-golden-langur
#16
Jatin Sarmah, Chaya R Hazarika, Elizabeth V Berkeley, Stefanie B Ganswindt, Andre Ganswindt
The golden langur (Trachypithecus geei) is an endangered primate endemic to northern India and Bhutan. The main stressors to the species are habitat degradation and fragmentation. Non-invasive fecal glucocorticoid metabolite (fGCM) analysis is a powerful tool for assessing stress associated with environmental disturbances in wildlife. However, interspecific differences in glucocorticoid metabolism require careful selection of the antibody used in their quantification. The goals of this study were to: 1) validate an enzyme immunoassay (EIA) to determine fecal GC metabolite (fGCM) concentrations in the golden langur and 2) compare fGCM concentrations between golden langurs living under different environmental conditions...
July 2017: Zoo Biology
https://www.readbyqxmd.com/read/28664631/avian-gametologs-as-molecular-tags-for-sex-identification-in-birds-of-prey-of-iran
#17
Reza Valadan, Foroogh Nejatollahi, Hoda Ehsani-Nori, Hassan Habibi, Hamid Amini, Mansour Aliabadian
Global environmental change and rapid destruction of natural habitats necessitate the conservation of endangered and threatened birds of prey. Recently, molecular sex identification methods based on amplification of introns of chromodomain-helicase DNA binding protein1 (CHD1) have provided valuable tools for ecological study and conservation breeding programs of birds. These methods employ a primer pair flanking an intron which varies considerably in length between the avian gametologs CHD1Z and CHD1W. Herein, we test the applicability of CHD1Z and CHD1W as universal tags for molecular sex identification in birds of prey of Iran...
July 2017: Zoo Biology
https://www.readbyqxmd.com/read/28653455/nocturnal-behavior-of-orphaned-asian-elephant-elephas-maximus-calves-in-sri-lanka
#18
Helena Stokes, Vijitha Perera, Nilmini Jayasena, Ayona Silva-Fletcher
Many animals exhibit circadian variation in behavior; thus, studying nocturnal behavior is important to fully understand species activity patterns. The nocturnal behavior of Asian elephants, and specifically calves, has received little previous study. We carried out observational study of the nocturnal behavior of orphaned Asian elephant calves at three age groups: "infant" (0-24 months), "young juvenile" (25-36 months) and "old juveniles" (over 36 months). Project aims were to build a nocturnal activity budget, to investigate key age differences, and whether calves exhibited synchronous behavior patterns...
July 2017: Zoo Biology
https://www.readbyqxmd.com/read/28643409/variability-in-hematology-of-white-spotted-bamboo-sharks-chiloscyllium-plagiosum-in-different-living-environments
#19
Lily A Parkinson, Amy B Alexander, Terry W Campbell
Elasmobranch hematology continues to reveal new peculiarities within this specialized field. This report compares total hematologic values from the same white-spotted bamboo sharks (Chiloscyllium plagiosum) housed in different environments. We compared the hemograms one year apart, using a standardized Natt-Herrick's technique. The total white blood cell (WBC) counts of the sharks were statistically different between the two time points (initial median total WBC count = 18,920 leukocytes/μl, SD = 8,108; 1 year later total WBC count = 1,815 leukocytes/μl, SD = 1,309)...
July 2017: Zoo Biology
https://www.readbyqxmd.com/read/28639408/quantifying-long-term-impact-of-zoo-and-aquarium-visits-on-biodiversity-related-learning-outcomes
#20
Eric A Jensen, Andrew Moss, Markus Gusset
Zoos and aquariums aim to achieve lasting impact on their public audiences' awareness of biodiversity, its value, and the steps they can take to conserve it. Here, we evaluate the long-term educational impact of visits to zoos and aquariums on biodiversity understanding and knowledge of actions to help protect biodiversity. A minimum of two years after completing a repeated-measures survey before and after visiting a zoo or aquarium, the same participants were invited to take part in a follow-up online survey...
July 2017: Zoo Biology
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