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https://www.readbyqxmd.com/read/29322387/giant-panda-foraging-and-movement-patterns-in-response-to-bamboo-shoot-growth
#1
Mingchun Zhang, Zhizhong Zhang, Zhong Li, Mingsheng Hong, Xiaoping Zhou, Shiqiang Zhou, Jindong Zhang, Vanessa Hull, Jinyan Huang, Hemin Zhang
Diet plays a pivotal role in dictating behavioral patterns of herbivorous animals, particularly specialist species. The giant panda (Ailuropoda melanoleuca) is well-known as a bamboo specialist. In the present study, the response of giant pandas to spatiotemporal variation of bamboo shoots was explored using field surveys and GPS collar tracking. Results show the dynamics in panda-bamboo space-time relationships that have not been previously articulated. For instance, we found a higher bamboo stump height of foraged bamboo with increasing elevation, places where pandas foraged later in spring when bamboo shoots become more fibrous and woody...
January 10, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29320501/uncertainty-of-future-projections-of-species-distributions-in-mountainous-regions
#2
Ying Tang, Julie A Winkler, Andrés Viña, Jianguo Liu, Yuanbin Zhang, Xiaofeng Zhang, Xiaohong Li, Fang Wang, Jindong Zhang, Zhiqiang Zhao
Multiple factors introduce uncertainty into projections of species distributions under climate change. The uncertainty introduced by the choice of baseline climate information used to calibrate a species distribution model and to downscale global climate model (GCM) simulations to a finer spatial resolution is a particular concern for mountainous regions, as the spatial resolution of climate observing networks is often insufficient to detect the steep climatic gradients in these areas. Using the maximum entropy (MaxEnt) modeling framework together with occurrence data on 21 understory bamboo species distributed across the mountainous geographic range of the Giant Panda, we examined the differences in projected species distributions obtained from two contrasting sources of baseline climate information, one derived from spatial interpolation of coarse-scale station observations and the other derived from fine-spatial resolution satellite measurements...
2018: PloS One
https://www.readbyqxmd.com/read/29297826/hematology-serum-biochemistry-and-urinalysis-values-in-the-adult-giant-panda-ailuropoda-melanoleuca
#3
Caitlin Burrell, Hemin Zhang, Desheng Li, Chengdong Wang, Caiwu Li, Copper Aitken-Palmer
The giant panda ( Ailuropoda melanoleuca) is a high-profile threatened species with individuals in captivity worldwide. As a result of advances in captive animal management and veterinary medicine, the ex situ giant panda population is aging, and improved understanding of age-related changes is necessary. Urine and blood samples were collected in April and July 2015 and analyzed for complete blood count, serum biochemistry, and biochemical and microscopic urine analysis for all individuals sampled ( n = 7, 7-16 yr of age) from giant panda housed at the China Research and Conservation Centre for the Giant Panda in Bifengxia, Sichuan Province, China...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29251797/an-ecophysiological-perspective-on-likely-giant-panda-habitat-responses-to-climate-change
#4
Yuke Zhang, Paul D Mathewson, Qiongyue Zhang, Warren P Porter, Jianghong Ran
Threatened and endangered species are more vulnerable to climate change due to small population and specific geographical distribution. Therefore, identifying and incorporating the biological processes underlying a species' adaptation to its environment are important for determining whether they can persist in situ. Correlative models are widely used to predict species' distribution changes, but generally fail to capture the buffering capacity of organisms. Giant pandas (Ailuropoda melanoleuca) live in topographically complex mountains and are known to avoid heat stress...
December 18, 2017: Global Change Biology
https://www.readbyqxmd.com/read/29249329/comparative-ovarian-function-and-reproductive-monitoring-of-endangered-mammals
#5
Janine L Brown
The ability to track gonadal function is facilitated by the use of endocrine and ultrasound techniques, both of which are important tools for optimizing reproduction and ensuring sustainability of fragile populations. With so many species now endangered, captive breeding is increasingly viewed as a means to sustain important insurance populations. As reproduction is key to species survival, understanding how to control and monitor ovarian function is vital. Through decades of study, we now have a greater understanding of the diversity, and plasticity, of reproductive mechanisms across taxa...
December 8, 2017: Theriogenology
https://www.readbyqxmd.com/read/29188302/bamboo-specialists-from-two-mammalian-orders-primates-carnivora-share-a-high-number-of-low-abundance-gut-microbes
#6
Erin A McKenney, Michael Maslanka, Allen Rodrigo, Anne D Yoder
Bamboo specialization is one of the most extreme examples of convergent herbivory, yet it is unclear how this specific high-fiber diet might selectively shape the composition of the gut microbiome compared to host phylogeny. To address these questions, we used deep sequencing to investigate the nature and comparative impact of phylogenetic and dietary selection for specific gut microbial membership in three bamboo specialists-the bamboo lemur (Hapalemur griseus, Primates: Lemuridae), giant panda (Ailuropoda melanoleuca, Carnivora: Ursidae), and red panda (Ailurus fulgens, Carnivora: Musteloideadae), as well as two phylogenetic controls-the ringtail lemur (Lemur catta) and the Asian black bear (Ursus thibetanus)...
November 29, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/29185223/role-of-nature-reserves-in-giant-panda-protection
#7
Dongwei Kang, Junqing Li
Giant panda (Ailuropoda melanoleuca) is a flagship species in nature conservation of the world; to protect this species, 67 nature reserves have been established in China. To evaluate the protection effect of giant panda nature reserves, we analyzed the variation of giant panda number and habitat area of 23 giant panda nature reserves of Sichuan province based on the national survey data released by State Forestry Administration and Sichuan Forestry Department. Results showed that from the third national survey to the fourth, giant panda number and habitat area of 23 giant panda nature reserves of Sichuan province failed to realize the significant increase...
November 28, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29177695/blood-lead-levels-in-captive-giant-pandas
#8
Nathan J P Wintle, Meghan S Martin-Wintle, Xiaoping Zhou, Hemin Zhang
Fifteen giant pandas (Ailuropoda melanoleuca) from the Chinese Conservation and Research Center for the Giant Panda (CCRCGP) in Bifengxia, Sichuan, China were analyzed for blood lead concentrations (Pb-B) during the 2017 breeding season. Thirteen of the 15 bears showed Pb-B below the method detection limit (MDL) of 3.3 µg/dL. The two remaining bears, although above the MDL, contained very low concentrations of lead of 3.9 and 4.5 µg/dL. All 15 giant pandas in this analysis had Pb-B concentrations that were within normal background concentrations for mammals in uncontaminated environments...
November 24, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29168616/lineage-specific-evolution-of-bitter-taste-receptor-genes-in-the-giant-and-red-pandas-implies-dietary-adaptation
#9
Lei Shan, Qi Wu, Le Wang, Lei Zhang, Fuwen Wei
Bitter taste receptor genes (TAS2Rs) mediate bitterness perception in mammals. It is believed that these genes evolved in response to species-specific diets. The giant panda (Ailuropoda melanoleuca) and red panda (Ailurus fulgens styani) in the order Carnivora are specialized herbivores with an almost exclusive bamboo diet (>90% bamboo). Because bamboo is full of bitter tasting compounds, we hypothesized that adaptive evolution have occurred at TAS2R genes in giant and red pandas throughout the course of their dietary shift...
November 23, 2017: Integrative Zoology
https://www.readbyqxmd.com/read/29157237/isolation-and-identification-of-culturable-fungi-from-the-genitals-and-semen-of-healthy-giant-pandas-ailuropoda-melanoleuca
#10
Xiaoping Ma, Changcheng Li, Jiafa Hou, Yu Gu
BACKGROUND: In order to better understand the possible role of fungi in giant panda reproduction and overall health, it is important to provide a baseline for the normal fungal composition in the reproductive system. Using morphology and internal transcribed spacer (ITS) sequence analysis, we systematically isolated and identified fungal species from the vagina, foreskin, and semen of 21 (11 males and 10 females) healthy giant pandas to understand the normal fungal flora of the genital tracts...
November 21, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29150813/a-social-cichlid-fish-failed-to-pass-the-mark-test
#11
Takashi Hotta, Shiho Komiyama, Masanori Kohda
Since the pioneering work in chimpanzees, mirror self-recognition (MSR), the ability to recognise oneself in a mirror, has been reported in great apes, Asian elephants, dolphins, and some social birds using the mark test, in which animals that possess MSR touch an imperceptible mark on their own bodies only when a mirror is present. However, giant pandas, which are solitary, failed to pass the mark test, suggesting that MSR evolved solely in highly social animals. In contrast to the increasing evidence of MSR in mammals and birds, little is known about MSR in fish...
November 17, 2017: Animal Cognition
https://www.readbyqxmd.com/read/29107552/feeding-ecology-and-morphology-make-a-bamboo-specialist-vulnerable-to-climate-change
#12
Jussi T Eronen, Sarah Zohdy, Alistair R Evans, Stacey R Tecot, Patricia C Wright, Jukka Jernvall
Animals with dietary specializations can be used to link climate to specific ecological drivers of endangerment. Only two mammals, the giant panda (Ailuropoda melanoleuca) in Asia and the greater bamboo lemur (Prolemur simus) in Madagascar, consume the nutritionally poor and mechanically challenging culm or trunk of woody bamboos [1-3]. Even though the greater bamboo lemur is critically endangered, paleontological evidence shows that it was once broadly distributed [4, 5]. Here, integrating morphological, paleontological, and ecological evidence, we project the effects of climate change on greater bamboo lemurs...
November 6, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29103407/musical-interests-and-talent-twin-jazz-musicians-and-twin-studies-twin-research-loss-of-a-preterm-multiple-conjoined-twin-conception-depression-in-fathers-of-twins-twin-to-twin-transfusion-syndrome-twin-news-high-achieving-twins-twin-children-of-a-tennis-star
#13
Nancy L Segal
Findings from twin studies of musical interests and talent are reviewed as a backdrop to the lives and careers of twin jazz musicians, Peter and Will Anderson. The Anderson twins exemplify many aspects of twin research, namely their matched musical abilities, shared musical interests, and common career. This overview is followed by reviews of studies and case reports of bereavement in families who have lost a preterm multiple birth infant, the conception of conjoined twins following in vitro fertilization (IVF), depression in fathers of twins, and twin-to-twin transfusion incidence in monochorionic-diamniotic IVF twin pairs...
November 6, 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/29078783/a-novel-polyomavirus-from-the-nasal-cavity-of-a-giant-panda-ailuropoda-melanoleuca
#14
Dunwu Qi, Tongling Shan, Zhijian Liu, Xutao Deng, Zhihe Zhang, Wenlei Bi, Jacob Robert Owens, Feifei Feng, Lisong Zheng, Feng Huang, Eric Delwart, Rong Hou, Wen Zhang
BACKGROUND: Polyomaviruses infect a wide variety of mammalian and avian hosts with a broad spectrum of outcomes including asymptomatic infection, acute systemic disease, and tumor induction. METHODS: Viral metagenomics and general PCR methods were used to detected viral nucleic acid in the samples from a diseased and healthy giant pandas. RESULTS: A novel polyomavirus, the giant panda polyomavirus 1 (GPPyV1) from the nasal cavity of a dead giant panda (Ailuropoda melanoleuca) was characterized...
October 27, 2017: Virology Journal
https://www.readbyqxmd.com/read/29078359/reverse-chemical-ecology-olfactory-proteins-from-the-giant-panda-and-their-interactions-with-putative-pheromones-and-bamboo-volatiles
#15
Jiao Zhu, Simona Arena, Silvia Spinelli, Dingzhen Liu, Guiquan Zhang, Rongping Wei, Christian Cambillau, Andrea Scaloni, Guirong Wang, Paolo Pelosi
The giant panda Ailuropoda melanoleuca belongs to the family of Ursidae; however, it is not carnivorous, feeding almost exclusively on bamboo. Being equipped with a typical carnivorous digestive apparatus, the giant panda cannot get enough energy for an active life and spends most of its time digesting food or sleeping. Feeding and mating are both regulated by odors and pheromones; therefore, a better knowledge of olfaction at the molecular level can help in designing strategies for the conservation of this species...
October 23, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29068407/prokaryotic-expression-and-serodiagnostic-potential-of-glyceraldehyde-3-phosphate-dehydrogenase-and-thioredoxin-peroxidase-from-baylisascaris-schroederi
#16
Yu Li, Ying Sun, Xiaobin Gu, Yue Xie, Weiming Lai, Bo Jing, Xuerong Peng, Guangyou Yang
Baylisascaris schroederi, a roundworm parasite of giant pandas, badly affects the health of its hosts. Diagnosis of this disease currently depends mainly on sedimentation floatation and Polymerase Chain Reaction (PCR) methods to detect the eggs. However, neither of these methods is suitable for diagnosis of early-stage panda baylisascariasis and no information on early diagnosis of this disease is available so far. Therefore, to develop an effective serologic diagnostic method, this study produced recombinant glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and thioredoxin peroxidase (Tpx) proteins from B...
October 25, 2017: Genes
https://www.readbyqxmd.com/read/29062136/resting-site-use-of-giant-pandas-in-wanglang-nature-reserve
#17
Dongwei Kang, Xiaorong Wang, Junqing Li
Little is known about the resting sites used by the giant panda (Ailuropoda melanoleuca), which restricts our understanding of their resting habits and limits conservation efforts. To enhance our understanding of resting site requirements and factors affecting the resting time of giant pandas, we investigated the characteristics of resting sites in the Wanglang Nature Reserve, Sichuan Province, China. The results indicated that the resting sites of giant pandas were characterised by a mean slope of 21°, mean nearest tree size of 53...
October 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29047380/population-genetics-of-enterocytozoon-bieneusi-in-captive-giant-pandas-of-china
#18
Wei Li, Yuan Song, Zhijun Zhong, Xiangming Huang, Chengdong Wang, Caiwu Li, Haidi Yang, Haifeng Liu, Zhihua Ren, Jingchao Lan, Kongju Wu, Guangneng Peng
BACKGROUND: Most studies on Enterocytozoon bieneusi are conducted based on the internal transcribed spacer (ITS) region of the rRNA gene, whereas some have examined E. bieneusi population structures. Currently, the population genetics of this pathogen in giant panda remains unknown. The objective of this study was to determine the E. bieneusi population in captive giant pandas in China. RESULTS: We examined 69 E. bieneusi-positive specimens from captive giant pandas in China using five loci (ITS, MS1, MS3, MS4 and MS7) to infer E...
October 18, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29018435/lactobacillus-plantarum-bsgp201683-isolated-from-giant-panda-feces-attenuated-inflammation-and-improved-gut-microflora-in-mice-challenged-with-enterotoxigenic-escherichia-coli
#19
Qian Liu, Xueqin Ni, Qiang Wang, Zhirong Peng, Lili Niu, Hengsong Wang, Yi Zhou, Hao Sun, Kangcheng Pan, Bo Jing, Dong Zeng
In this work, we searched for an effective probiotic that can help control intestinal infection, particularly enterotoxigenic Escherichia coli K88 (ETEC) invasion, in giant panda (Ailuropoda melanoleuca). As a potential probiotic strain, Lactobacillus plantarum BSGP201683 (L. plantarum G83) was isolated from the feces of giant panda and proven beneficial in vitro. This study was aimed to evaluate the protective effect of L. plantarum G83 in mice challenged with ETEC. The mice were orally administered with 0...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28983118/quantifying-the-evidence-for-co-benefits-between-species-conservation-and-climate-change-mitigation-in-giant-panda-habitats
#20
Renqiang Li, Ming Xu, Ryan Powers, Fen Zhao, Walter Jetz, Hui Wen, Qingkai Sheng
Conservationists strive for practical, cost-effective management solutions to forest-based species conservation and climate change mitigation. However, this is compromised by insufficient information about the effectiveness of protected areas in increasing carbon storage, and the co-benefits of species and carbon conservation remain poorly understood. Here, we present the first rigorous quantitative assessment of the roles of giant panda nature reserves (NRs) in carbon sequestration, and explore the co-benefits of habitat conservation and climate change mitigation...
October 5, 2017: Scientific Reports
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