Zoo BiologyPub Date : 2023-07-01Epub Date: 2023-03-23DOI: 10.1002/zoo.21764
Viviane Campos Garcia, Lígia Grazziely Dos Santos Amorim, Rhaiza Gama Esteves, Ana Maria Paulino Telles de Carvalho-E-Silva, Selma Maria de Almeida-Santos
{"title":"Ultrasonographic and radiographic evaluation of gestation in golden lanceheads (Bothrops insularis) in ex situ breeding programs.","authors":"Viviane Campos Garcia, Lígia Grazziely Dos Santos Amorim, Rhaiza Gama Esteves, Ana Maria Paulino Telles de Carvalho-E-Silva, Selma Maria de Almeida-Santos","doi":"10.1002/zoo.21764","DOIUrl":"10.1002/zoo.21764","url":null,"abstract":"<p><p>The golden lancehead (Bothrops insularis) is a critically endangered snake endemic to Queimada Grande Island, southeastern Brazil. Captive breeding programs are vital for the conservation of this species. This study evaluates the gestation of two females golden lanceheads using radiography and ultrasonography. The first female was collected on the island while reproductively active (late vitellogenesis or early pregnancy) and kept in captivity. This female gave birth to five neonates after an 8-month gestation period, which is longer than estimates based on specimens preserved in museums. The second female copulated in captivity in July and probably ovulated in October. In this case, no embryonic development was detected, and the female deposited 14 undeveloped eggs approximately 6 months after ovulation.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9983700","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 : 2023-07-01Epub Date: 2023-03-11DOI: 10.1002/zoo.21762
C Mayer, L Russell, M McKinney, M Litton, R W Mendyk, D Cutler, C Liu, J G Nevarez
{"title":"Sexual dimorphism in Louisiana pine snakes (Pituophis ruthveni).","authors":"C Mayer, L Russell, M McKinney, M Litton, R W Mendyk, D Cutler, C Liu, J G Nevarez","doi":"10.1002/zoo.21762","DOIUrl":"10.1002/zoo.21762","url":null,"abstract":"<p><p>The Louisiana pine snake, Pituophis ruthveni, is a cryptic, federally threatened snake species with several fragmented populations in Louisiana and Texas, USA. There are currently four captive breeding populations in zoos in the USA; however, little scientific data exists on their life history and anatomy. Accurate sex determination and identification of normal reproductive anatomy are an essential part of a veterinary exam and conservation programs. The authors had encountered various cases of sex misidentification in this species that were attributed to lack of lubrication of the sexing probes and enlarged musk glands. Anecdotal observation led to a hypothesis of sexual dimorphism based on body and tail shape. To test this hypothesis, we measured body length, tail length and width, and body to tail taper angle in 15 P. ruthveni (9 males and 6 females). We also obtained tail radiographs of all animals to document the presence of mineralized hemipenes. Significant dimorphism was identified in relative tail length, width, and taper angle; females consistently exhibited a more acute taper angle. Contrary to previous studies in other Pituophis species, a male-biased sexual size dimorphism was not identified. Mineralized hemipenes were confirmed in all males (a newly described trait in this species), and we found that the lateral view was consistently more reliable for identification of hemipenes compared to the ventrodorsal view. This information contributes to the scientific community's understanding of this species and is of use to biologists and veterinarians working toward conservation of this threatened species.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10336482","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 : 2023-07-01Epub Date: 2023-03-05DOI: 10.1002/zoo.21761
Steven M Gray, Arielle W Parsons, John E Andrews, Kristine Schad Eebes, Lisa J Faust, Judy Che-Castaldo
{"title":"Institutional networks in cooperative population management: Exploring patterns in transfer fulfillment.","authors":"Steven M Gray, Arielle W Parsons, John E Andrews, Kristine Schad Eebes, Lisa J Faust, Judy Che-Castaldo","doi":"10.1002/zoo.21761","DOIUrl":"10.1002/zoo.21761","url":null,"abstract":"<p><p>Long-term sustainability of ex-situ animal populations is important for zoos and aquariums, but challenging due to inconsistent compliance with Breeding and Transfer Plans. Transfer recommendations are key to promoting the sustainability of ex-situ animal populations by ensuring cohesive populations, genetic diversity, and demographic stability, but factors affecting their fulfillment are poorly understood. We used a network analysis framework to analyze data compiled from PMCTrack from 2011 to 2019 for three taxonomic classes (mammals, birds, and reptiles/amphibians) within the Association of Zoos and Aquariums to assess factors affecting transfer recommendation fulfillment. Of 2505 compiled transfer recommendations spanning 330 Species Survival Plan® (SSP) Programs and 156 institutions, 1628 (65%) of them were fulfilled. Transfers were most likely to be fulfilled between institutions in close proximity with an established relationship. Annual operating budget, SSP Coordinator experience, number of staff, and diversity of Taxonomic Advisory Groups in which an institution participates also influenced transfer recommendations and/or fulfillment, but effects varied with taxonomic class. Our results suggest that current practices of focusing on transfers between institutions in close proximity are working to maximize transfer success and that institutions with larger budgets and some degree of taxonomic specialization play important roles in promoting success. Success could be further enhanced by building reciprocal transfer relationships and encouraging further development of relationships between smaller institutions and larger ones. These results emphasize the utility of examining animal transfers using a network approach, which accounts for attributes of both sending and receiving institutions, describing novel patterns otherwise left undetected.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9983684","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 : 2023-07-01Epub Date: 2023-03-05DOI: 10.1002/zoo.21759
Gemma Edney, Tom Smart, Frederick Howat, Zoe E Batchelor, Charlotte Hughes, Andrew Moss
{"title":"Assessing the effect of interpretation design traits on zoo visitor engagement.","authors":"Gemma Edney, Tom Smart, Frederick Howat, Zoe E Batchelor, Charlotte Hughes, Andrew Moss","doi":"10.1002/zoo.21759","DOIUrl":"10.1002/zoo.21759","url":null,"abstract":"<p><p>In the past few decades, zoos have undergone a transformation from places of entertainment to centers for conservation, with education becoming a particular focus. Interpretation in zoos is a near-universal method for delivering education in zoos and has been shown to prompt learning and pro-conservation behavior change. However, there is limited understanding on how interpretation design itself can influence visitor engagement. Using unobtrusive visitor observations (n = 3890), this study measures visitor engagement of multiple pieces of interpretation with various design \"traits,\" to provide a comprehensive overview of the key traits related to increased visitor engagement. The proportion of visitors who stopped at the interpretation (attraction power), and how long they stopped for (holding power), were our two outcome variables. From our models, we found that attraction and holding power are most strongly influenced by the type of interpretation, with interactive interpretation seeing nearly four times as many visitors stop, and for more than six times longer, when compared to standard text and graphics interpretation. We also found that location was significantly related to attraction power, with visitors more likely to stop at interpretation in more immersive exhibits. Lastly, interpretation containing images of humans were related to a higher holding power. We hope our findings will be used as a guide for designing interpretation that is both attractive and interesting to zoo visitors, maximizing the conservation education value of zoo-based interpretation.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9983687","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 : 2023-07-01Epub Date: 2023-02-21DOI: 10.1002/zoo.21758
Brett Williams, Jennifer Campbell, Corinne Kendall, Jade Tuttle, Emily C Lynch
{"title":"Exploring the behaviors and social preferences of a large, multigenerational herd of zoo-housed southern white rhinoceros (Ceratotherium simum simum).","authors":"Brett Williams, Jennifer Campbell, Corinne Kendall, Jade Tuttle, Emily C Lynch","doi":"10.1002/zoo.21758","DOIUrl":"10.1002/zoo.21758","url":null,"abstract":"<p><p>The zoo-housed southern white rhinoceros (SWR) population is of special concern due to their lack of consistent breeding success. An enhanced understanding of SWR social preferences could better inform management planning by promoting natural social relationships, which can positively affect their well-being. The large, multigeneration herd housed at the North Carolina Zoo provides an ideal opportunity to examine rhino sociality across different ages, kin types, and social groupings. Eight female rhinos' social and nonsocial behaviors were recorded from November 2020 through June 2021 across 242 h. Activity budget analyses revealed strong seasonal and temporal variations in grazing and resting behaviors, with no stereotypic behaviors recorded. Bond strength calculations suggested that each female maintained strong social bonds with one to two partners. Beyond mother-nursing calf bonds, we found that the strongest social ties were maintained between calf-less adults and subadults in these dyads. Considering these findings, we recommend that management plans attempt to house immature females with calf-less adult females, as they may be necessary to the social landscape of immature females and, ultimately, improve their welfare.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10355419","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 : 2023-07-01Epub Date: 2023-03-26DOI: 10.1002/zoo.21765
Dan Wharton
{"title":"Backcrossing as a species restoration technique.","authors":"Dan Wharton","doi":"10.1002/zoo.21765","DOIUrl":"10.1002/zoo.21765","url":null,"abstract":"<p><p>An investigation was conducted on the phenotypic results of mouse hybridization and seven generations of backcrossing, observing reciprocal F1 hybrids and backcrosses of Mus spretus and a laboratory strain of Mus domesticus C57BL/6J. F1 hybrids, backcrosses, and pure control specimens were measured for 6 body characteristics, 4 pelage coloration characteristics, 14 behaviors, and reproduction as reflected in litter size. Backcrossing was pursued for seven generations to FBC7 (i.e., \"Backcross 7\" or seven generations from commencement of backcrossing from an F1 hybrid female) where species restoration is mathematically calculated to be at 99.7%. Except for a minority of FBC7 M. spretus specimens failing to conform completely to one pelage characteristic, FBC7 specimens were indistinguishable from controls both subjectively and in all areas of measurement. The M. spretus backcross line was followed generation by generation and was largely conforming to controls by FBC4 at latest. The same effect was observed in the reciprocal M. domesticus backcross line. Fertility was negatively affected in F1 hybrids but restored or improved in backcross generations. Discussion is offered on hybridization and backcrossing as it occurs in nature and how it has been used or could be used as an additional ex situ tool in wildlife conservation efforts. It is concluded that conservation-oriented backcrossing is a practical species/subspecies restoration technique and has the potential to make genetic rescue feasible with minimal gene flow at the binomial level. Backcrossing is most applicable in closely monitored ex situ settings (1) where only one sex remains of a given taxon; and (2) where inbreeding depression seriously threatens a remnant taxon's ability to recover, and the only gene flow option is from another distinct species.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10336483","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 : 2023-05-01DOI: 10.1002/zoo.21749
Heather Bacon, Catriona Bell, Cathy M Dwyer, Natalie Waran, Yan Qing, Liu Xia, Darren J Shaw
{"title":"Exploration of cultural norms and behavioural beliefs about zoo animal behaviour, welfare, ethics and husbandry practices in a sample of the international zoo community.","authors":"Heather Bacon, Catriona Bell, Cathy M Dwyer, Natalie Waran, Yan Qing, Liu Xia, Darren J Shaw","doi":"10.1002/zoo.21749","DOIUrl":"https://doi.org/10.1002/zoo.21749","url":null,"abstract":"<p><p>Beliefs influence the intentions of people to behave in certain ways towards animals. This study presents survey responses from 237 people working in zoos in China and Europe and describes their demographic characteristics. It explores their beliefs about zoo animal behaviour, welfare and ethical issues, and zoo practices, using a survey methodology. These beliefs may be influenced by individual demographic or cultural factors such as age, gender and region of employment, as well as experiential or situative 'norms' within the work environment. Beliefs were significantly influenced by the region of employment with Chinese respondents beliefs being significantly different to beliefs from respondents in the United Kingdom or the rest of Europe. Hierarchical cluster analysis of the survey generated clusters of people from both regions who indicated positive beliefs about zoo animal welfare as well as clu sters indicating a lack of understanding of some zoo animal welfare issues. In addition, a cluster suggesting cognitive dissonance between beliefs about animals welfare and zoo practices was generated from Chinese responses. Factor analysis identified that prioritisation of in-situ conservation within good animal welfare was a key feature in Chinese respondents, whereas European beliefs prioritising in-situ conservation were distinct from those on supporting good animal welfare. This paper identifies similarities and differences in beliefs about zoo animal welfare and zoo husbandry practices between Europe and China, and discusses the underlying norms and values that these beliefs may reflect.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9492744","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 : 2023-05-01DOI: 10.1002/zoo.21753
Andrew Mooney, J Andrew Teare, Johanna Staerk, Simeon Q Smeele, Paul Rose, R Harrison Edell, Catherine E King, Laurie Conrad, Yvonne M Buckley
{"title":"Flock size and structure influence reproductive success in four species of flamingo in 540 captive populations worldwide.","authors":"Andrew Mooney, J Andrew Teare, Johanna Staerk, Simeon Q Smeele, Paul Rose, R Harrison Edell, Catherine E King, Laurie Conrad, Yvonne M Buckley","doi":"10.1002/zoo.21753","DOIUrl":"https://doi.org/10.1002/zoo.21753","url":null,"abstract":"<p><p>As global wildlife populations continue to decline, the health and sustainability of ex situ populations in zoos and aquariums have become increasingly important. However, the majority of managed ex situ populations are not meeting sustainability criteria and are not viable in the long term. Historically, ex situ flamingo (Phoenicopteriformes) populations have shown low rates of reproductive success and improvements are needed for long-term viability. Both flock size and environmental suitability have previously been shown to be important determinants of ex situ flamingo reproductive success in a limited number of sites in some species. Here we combined current and historic globally shared zoological records for four of the six extant species of flamingo (Phoeniconaias minor, Phoenicopterus chilensis, Phoenicopterus roseus, and Phoenicopterus ruber) to analyze how flock size, structure, and climatic variables have influenced reproductive success in ex situ flamingo populations at 540 zoological institutions from 1990 to 2019. Flock size had a strong nonlinear relationship with reproductive success for all species, with flock sizes of 41-100 birds necessary to achieve ca. 50% probability of reproduction. Additionally, an even sex ratio and the introduction of new individuals to a flock both increased ex situ reproductive success in some cases, while climatic variables played a limited role. We demonstrate the conservation management potential from globally shared zoological data and provide species-specific management recommendations to increase the reproductive success of global ex situ flamingo populations: minimum flock sizes should be increased, and we encourage greater collaboration between individual institutions and regional associations in exchanging birds between flocks.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9498118","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 : 2023-05-01DOI: 10.1002/zoo.21746
Kirsten D Smith, Richard J Snider, Daniel P Dembiec, Janice M Siegford, Ahmed B Ali
{"title":"Effects of a modern exhibit design on captive tiger welfare.","authors":"Kirsten D Smith, Richard J Snider, Daniel P Dembiec, Janice M Siegford, Ahmed B Ali","doi":"10.1002/zoo.21746","DOIUrl":"https://doi.org/10.1002/zoo.21746","url":null,"abstract":"<p><p>Offering captive animals larger, more complex spaces are thought to benefit their welfare. To this end, some zoos use trail systems linked to several enclosures. Since little is known about the effects of such designs on the welfare of captive carnivores specifically, we timed the behaviors exhibited by four tigers (Panthera tigris [Linnaeus]) given access to three exhibit configurations: one exhibit only (E, baseline); one exhibit and approximately 19 m<sup>2</sup> of trail (ET); and two exhibits connected by approximately 46 m<sup>2</sup> of trail (E2T). Behaviors were recorded during 1-h AM, Noon, and PM periods in Phase I (2017), and 2-h AM and PM periods in Phase II (2018). Percentages of behavior occurrence were analyzed using generalized linear mixed models (GLMM), with treatment and time of day as fixed effects. Tigers were least active at noon (Phase I), while active behaviors were prevalent during mornings and afternoons in both Phases. In Phase II (E2T vs. E), active and exploratory behaviors such as sniffing increased, while pacing and inactivity decreased (all p ≤ .001). We also examined nocturnal tiger movement using infrared motion-activated cameras. In parallel with diurnal observations, tiger activity in E2T greatly exceeded that in E. Nocturnal movement was most pronounced from 1800 to 2200 and least frequent from 0100 to 0400, closely matching patterns observed in the wild. Results indicate that offering tigers voluntary access to larger and more complex spaces stimulates natural behaviors and decreases stereotypical behaviors.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9547038","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 : 2023-05-01DOI: 10.1002/zoo.21747
Brian R Blais, Stuart A Wells, Bradley M Poynter, Tara R Harris, Ruth A Allard, John L Koprowski
{"title":"Bridging conservation across the ex situ-in situ spectrum: Insights into the reproductive ecology of the threatened narrow-headed gartersnake (Thamnophis rufipunctatus).","authors":"Brian R Blais, Stuart A Wells, Bradley M Poynter, Tara R Harris, Ruth A Allard, John L Koprowski","doi":"10.1002/zoo.21747","DOIUrl":"https://doi.org/10.1002/zoo.21747","url":null,"abstract":"<p><p>Zoo-based (ex situ) conservation breeding programs provide invaluable opportunities to uncover enigmatic behaviors and traits of focal species under managed care, which can support research and conservation management efforts. A suite of factors and a limited range have yielded population declines in the threatened narrow-headed gartersnake (Thamnophis rufipunctatus). Better understanding its cryptic ecology and life history (e.g., reproductive ecology) offers conservation benefits. We analyzed data on courtship behavior, parity and litter size, offspring size, and neonatal growth from an ex situ T. rufipunctatus population at the Phoenix Zoo from 2009 to 2018. Courtship behavior and parturition phenology are likely linked with the North American monsoon season, yet the courtship window may be wider than realized. We document the first instances of interannual iteroparity and multigenerational rearing of successful breeders at the ex situ level. Litter sizes varied but were relative to maternal body mass, suggesting that fecundity may be driven by intrinsic condition (e.g., age and size) of breeding females. Mean offspring body masses were equivalent between sexes, and neonate growth trends were quadratic during their first 9 months. Sexual dimorphism became apparent around 4-5 months age. Much of these data are novel for T. rufipunctatus and provide insight into their reproductive ecology. Phenology of reproductive ecology and body size metrics can guide field surveillance, age estimations, and population ecology monitoring, as well as inform ex situ adaptive management practices. Strategies spanning the ex situ-in situ spectrum are applicable to other imperiled taxa to better inform conservation management decisions.</p>","PeriodicalId":24035,"journal":{"name":"Zoo Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9547044","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}