Integrative zoology最新文献_第9页

Comparative Genomics Reveals Convergent Evolution Between Avivorous Bats (Ia io and Nyctalus aviator). 比较基因组学揭示了食食性蝙蝠的趋同进化。

IF 3.7 1区生物学

Integrative zoology Pub Date : 2026-09-01 Epub Date: 2026-07-07 DOI: 10.1111/1749-4877.70146

Yang Geng, Yingying Liu, Lixin Gong, Zhenglanyi Huang, Aiqing Lin, Jiang Feng, Yu Zhang, Tinglei Jiang

{"title":"Comparative Genomics Reveals Convergent Evolution Between Avivorous Bats (Ia io and Nyctalus aviator).","authors":"Yang Geng, Yingying Liu, Lixin Gong, Zhenglanyi Huang, Aiqing Lin, Jiang Feng, Yu Zhang, Tinglei Jiang","doi":"10.1111/1749-4877.70146","DOIUrl":"10.1111/1749-4877.70146","url":null,"abstract":"Investigating the genetic basis of dietary specialization can provide insights into the evolution of niche breadth. In this study, we employed comparative genomics to investigate the adaptive mechanisms enabling two bat species (Nyctalus aviator and Ia io) to shift from insectivory to seasonal bird consumption (avivorous bats). Our findings revealed adaptation related to immune response and lipid metabolism in avivorous bat species. Avivorous bats exhibit strong positive selection and convergent evolution in immune-related genes, which are under heightened selective pressure compared to those of non-avivorous bats. These species also display significantly fewer endogenous retroviral elements. These findings emphasized the significance of immune-driven adaptive evolution in avivory. Additionally, our results showed that the dietary evolution of avivorous bats is accompanied by convergent evolution associated with the lipid metabolism. Notably, CEPT1, the upstream gene required for the activation of the PPAR pathway, underwent positive selection and convergence, which may have affected lipid metabolism. These adaptations may enable avivorous bat species to face the challenge of immune response and nutrition during dietary niche expansion. These findings not only provide comprehensive insights into the adaptive evolution driving the unique diet of avivorous bats but also offered novel perspectives on the molecular mechanisms underlying ecological niche evolution in a dietary context.","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":"1411-1424"},"PeriodicalIF":3.7,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13574201/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148395883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hypoxia Promotes Gluconeogenesis Through PGC-1α in the Liver of Lasiopodomys brandtii. 缺氧通过肝组织PGC-1α促进糖异生

IF 3.7 1区生物学

Integrative zoology Pub Date : 2026-09-01 Epub Date: 2025-02-28 DOI: 10.1111/1749-4877.12961

Mengke Li, Maolin Huang, Jun Wan, Yunfei Gao, Jiahui Song, Xiujuan Li, Qinghua Li, Han Cheng, Tian Shao, Zhenlong Wang

{"title":"Hypoxia Promotes Gluconeogenesis Through PGC-1α in the Liver of Lasiopodomys brandtii.","authors":"Mengke Li, Maolin Huang, Jun Wan, Yunfei Gao, Jiahui Song, Xiujuan Li, Qinghua Li, Han Cheng, Tian Shao, Zhenlong Wang","doi":"10.1111/1749-4877.12961","DOIUrl":"10.1111/1749-4877.12961","url":null,"abstract":"Oxygen is a critical factor for the survival of most lifeforms, as inadequate availability disrupts internal metabolic balance. Hypoxia-induced disruptions in glucose metabolism can be fatal to many animals. However, there is currently limited research on the energy metabolism of species that inhabit environments with intermittently low oxygen levels. In this study, we investigated the gluconeogenic metabolic response patterns of adult Lasiopodomys brandtii (Brandt's vole) and Mus musculus (Kunming mice) under hypoxia (10% O2, 12 h), followed by 1 h reoxygenation period. Our results indicated that, unlike M. musculus, L. brandtii did not accumulate lactate after hypoxia treatment. This suggests that L. brandtii may deal with lactate accumulation caused by oxygen deficiency during hypoxia through the PGC-1α regulated gluconeogenesis pathway of the liver, which can restore the level of anaerobic glycolytic products in the liver and blood caused by hypoxia relatively quickly and ensure the stable survival of the organism in a hypoxic environment. Intriguingly, L. brandtii also did not exhibit O2 debt repayment after short-time reoxygenation. Our study revealed that liver PGC-1α regulating gluconeogenic metabolism in L. brandtii plays an important role in the maintenance of internal homeostasis of body acid-base balance under hypoxic environments, presenting a potential mechanism for the improvement of hypoxia tolerance in L. brandtii.","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":"1343-1355"},"PeriodicalIF":3.7,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13574195/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification and Expression Profiling of Scorpion Ionotropic Receptors and Gustatory Receptors Based on the Transcriptomic Analysis. 基于转录组学分析的蝎子嗜离子受体和味觉受体鉴定及表达谱分析。

IF 3.7 1区生物学

Integrative zoology Pub Date : 2026-09-01 Epub Date: 2025-08-24 DOI: 10.1111/1749-4877.13024

Xinrong Wang, Sijia Lu, Yitong Li, Haozhen Zhang, Hengwu Jiao, Yingliang Wu

{"title":"Identification and Expression Profiling of Scorpion Ionotropic Receptors and Gustatory Receptors Based on the Transcriptomic Analysis.","authors":"Xinrong Wang, Sijia Lu, Yitong Li, Haozhen Zhang, Hengwu Jiao, Yingliang Wu","doi":"10.1111/1749-4877.13024","DOIUrl":"10.1111/1749-4877.13024","url":null,"abstract":"Chemical signal perception plays a crucial role in arthropod reproduction and survival. The scorpion is one of the oldest terrestrial arthropods; however, its knowledge of the chemosensory genes remains unclear. Based on the transcriptomic analysis of widely distributed Mesobuthus martensii in China, 46 candidate gustatory receptors (GRs) and 80 candidate ionotropic receptors (IRs)/ionotropic Glutamate receptors (iGluRs) overall showed similar expression trends in different tissues between the third-instar and adult scorpions, which suggested that young scorpions possessed a relatively complete chemical perception capability. Most GRs showed higher transcript accumulation in the pectines, rather than other tissues, aligning with their known chemosensory function and highlighting the remarkable significance of pectines as crucial sensory organs. Conversely, IRs/iGluRs overall exhibited a more widespread distribution throughout the different tissues of the scorpion body. The phylogenetic tree further elucidated the evolutionary relationships among these chemosensory genes in arthropods. These findings contributed to a better understanding of the functionality and evolution of the chemosensory systems in scorpions, which would accelerate the functional investigations of scorpion chemosensory genes in the future.","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":"1439-1449"},"PeriodicalIF":3.7,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13574196/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144952965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evolutionary Conservation and Reproductive Expression of ABC Transporter Genes in Two Sphenomorphus Skinks. 两种棘龙ABC转运蛋白基因的进化保护及生殖表达。

IF 3.7 1区生物学

Integrative zoology Pub Date : 2026-09-01 Epub Date: 2026-07-01 DOI: 10.1111/1749-4877.70143

Shufang Zhang, Jiahui Xu, Mengzhen Hu, Qingyi Zhou, Peng Li, Yun-He Wu, Lian Chen, Hong Li

{"title":"Evolutionary Conservation and Reproductive Expression of ABC Transporter Genes in Two Sphenomorphus Skinks.","authors":"Shufang Zhang, Jiahui Xu, Mengzhen Hu, Qingyi Zhou, Peng Li, Yun-He Wu, Lian Chen, Hong Li","doi":"10.1111/1749-4877.70143","DOIUrl":"10.1111/1749-4877.70143","url":null,"abstract":"ATP-binding cassette (ABC) transporters represent one of the largest membrane protein superfamilies in vertebrates, playing essential roles in translocating diverse substrates across membranes. However, knowledge of ABC transporter genes in reptiles remains limited. In this study, we conducted a comprehensive genome-wide identification and characterization of the ABC gene family in oviparous Sphenomorphus incognitus and viviparous Sphenomorphus indicus. A total of 45 ABC genes were identified in each species and classified into seven subfamilies (ABCA-ABCG). Comparative and phylogenetic analyses revealed a generally conserved gene repertoire, with limited duplication events observed mainly in the ABCA and ABCG subfamilies, whereas other subfamilies (e.g., ABCE, ABCF, and ABCD) remained highly conserved. Interestingly, a lineage-specific duplication of ABCC2 was identified in lizards. Oviductal expression profiling revealed distinct temporal patterns of ABC gene expression across reproductive stages. Several genes, including ABCG1, ABCC3, and ABCD4, exhibited conserved expression trajectories across both species, suggesting shared transcriptional regulation. In contrast, ABCA1, ABCB1, and ABCG2 showed species-specific expression patterns, indicating regulatory divergence between the two lizard species. Overall, ABC gene expression was more dynamic in S. incognitus than in S. indicus. In summary, although the ABC transporter family is structurally conserved, it exhibits lineage-specific evolutionary changes and divergent transcriptional regulation in lizard oviducts. This study provides a foundation for understanding the diversity and regulation of ABC transporter genes in reptiles.","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":"1392-1410"},"PeriodicalIF":3.7,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13574194/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148360628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Origin and Evolution of Sweet Taste Mediated by Tas1r2-Tas1r3 in Vertebrates. 脊椎动物Tas1r2-Tas1r3介导的甜味起源与进化

IF 3.7 1区生物学

Integrative zoology Pub Date : 2026-09-01 Epub Date: 2026-01-30 DOI: 10.1111/1749-4877.70073

Hui-Hui Feng, Yingcan Li, Tianyu Shen, Huabin Zhao

{"title":"On the Origin and Evolution of Sweet Taste Mediated by Tas1r2-Tas1r3 in Vertebrates.","authors":"Hui-Hui Feng, Yingcan Li, Tianyu Shen, Huabin Zhao","doi":"10.1111/1749-4877.70073","DOIUrl":"10.1111/1749-4877.70073","url":null,"abstract":"Sweet taste is a crucial chemosensory modality for detecting natural sugar compounds, which are primarily derived from angiosperms. In vertebrates, excluding birds, sweet taste is typically mediated by the Tas1r2-Tas1r3 heterodimer, and the receptor function often reflects dietary adaptations to sugar-rich diets. To gain insight into early vertebrate dietary transitions, we identified Tas1r genes in 58 vertebrate species and one outgroup and conducted functional assays in 10 representative species spanning six major clades, including one coelacanth, two amphibians, one squamate, two turtles, two crocodilians, and one mammal. Cell-based assays showed that only the desert tortoise and American alligator exhibited detectable responses to natural sugars via Tas1r2-Tas1r3, while all other tested species showed no response. To trace the evolutionary origin of sweet taste perception, we reconstructed ancestral Tas1r2 and Tas1r3 receptors for tetrapods, amniotes, and sauropsids. Functional assays of these ancestral receptors revealed no sugar sensitivity. Integrating our results with previously published data, we conclude that Tas1r2-Tas1r3-mediated sweet taste likely originated in amniotes and did not exist in earlier-diverging vertebrates such as cartilaginous fishes, bony fishes, and amphibians. These findings suggest that sweet taste arose independently in vertebrate lineages after the origin of angiosperms, and likely represents lineage-specific adaptations to angiosperm-derived dietary resources.","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":"1450-1459"},"PeriodicalIF":3.7,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13574179/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146092944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Genomic Screening Identifies Developmental Constraint Loci Underscoring the Phenotypic Evolution of Syngnathids. 比较基因组筛选确定发育限制位点，强调合颌鱼的表型进化。

IF 3.7 1区生物学

Integrative zoology Pub Date : 2026-09-01 Epub Date: 2025-07-21 DOI: 10.1111/1749-4877.13018

Zheng Dong, Chen Wang, Shukai Dong, Yicheng Peng, Jierui Guo, Chuchu Zhang, Zhaopeng Xu, Zixiang Wu, Bo Wang, Qingming Qu

{"title":"Comparative Genomic Screening Identifies Developmental Constraint Loci Underscoring the Phenotypic Evolution of Syngnathids.","authors":"Zheng Dong, Chen Wang, Shukai Dong, Yicheng Peng, Jierui Guo, Chuchu Zhang, Zhaopeng Xu, Zixiang Wu, Bo Wang, Qingming Qu","doi":"10.1111/1749-4877.13018","DOIUrl":"10.1111/1749-4877.13018","url":null,"abstract":"Seahorses and their relatives (syngnathids) exhibit remarkable diversity in morphology and function, characterized by their distinctive body shapes and specialized feeding mechanisms. Despite recent advances in uncovering the genetic basis of some traits, the genotype-phenotype map in syngnathids remains incomplete. In this study, we employed forward-genomic approaches and developed a method to enrich for human disease amino acid loci at a genomic scale. Our aim was to identify genetic loci associated with fin size reduction, tooth loss, and spinal curvature in syngnathids. Intriguingly, we identified a convergent amino acid change in the lat4a gene shared by syngnathids and some flying fishes, with in vitro analysis confirming its role in fin size evolution in both lineages. While genes critical for tooth development are conserved in syngnathids, the absence of key regulatory elements, such as pitx2, likely contributes to tooth loss. Additionally, we implicated col6a3 in spinal curvature development in seadragons. These findings reveal novel genetic signatures and developmental constraints underlying syngnathid diversity, demonstrating the utility of comparative genomics and targeted gene enrichment in exploring vertebrate evolution.","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":"1425-1438"},"PeriodicalIF":3.7,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13574186/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144674697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Australian Hydromyine Rodents-Their Interspecific Diversity and Reproductive Biology: A Review. 澳大利亚水鼠的种间多样性和生殖生物学研究进展。

IF 3.7 1区生物学

Integrative zoology Pub Date : 2026-08-29 DOI: 10.1111/1749-4877.70165

William G Breed, Christopher M Leigh, Eleanor J Peirce

{"title":"The Australian Hydromyine Rodents-Their Interspecific Diversity and Reproductive Biology: A Review.","authors":"William G Breed, Christopher M Leigh, Eleanor J Peirce","doi":"10.1111/1749-4877.70165","DOIUrl":"https://doi.org/10.1111/1749-4877.70165","url":null,"abstract":"Australia has a diversity of mammals, with approximately 60 extant species being native rodents in the Family Muridae. Two major groups occur, the Rattus species and the Hydromyini. Investigations on their reproductive biology have shown that all species of Rattus have large scrotal testes which produce abundant spermatozoa. The sperm head contains a single apical hook in which a nuclear extension occurs. In female Rattus, the litter size varies from about 4 to 12 across the species. In sexually mature male hydromyine rodents, marked interspecific differences occur in relative testes mass from about 0.5% to 3% body mass in most species to only 0.1% body mass in most Notomys. Most male Notomys also have a highly divergent reproductive tract, with the penis containing large spines, whereas the female has a small, highly muscular vagina which facilitates locking between the pair at the time of mating. The hydromyine sperm morphology also varies markedly across the species, with most having a complex sperm head with an apical hook together with two ventral processes that contain actin. In a few species, a simpler sperm head occurs with only one, or no, apical hook. Clearly, the hydromyine rodents, unlike the Rattus genus, exhibit a diverse array of reproductive biological traits in both males and females, the full evolutionary significance of which has yet to be ascertained.","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148850627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Early-Life Telomere Length Negatively Covaries With Brood Size and Father Age, and Predicts Long-Term Survival in Male Barn Swallows (Hirundo rustica). 早期生命端粒长度与雏鸟数量和父亲年龄负相关，并预测雄性家燕的长期生存。

IF 3.7 1区生物学

Integrative zoology Pub Date : 2026-08-28 DOI: 10.1111/1749-4877.70173

Andrea Novelli, Manuela Caprioli, Roberto Ambrosini, Alessandra Costanzo, Diego Rubolini, Marco Parolini, Andrea Romano

{"title":"Early-Life Telomere Length Negatively Covaries With Brood Size and Father Age, and Predicts Long-Term Survival in Male Barn Swallows (Hirundo rustica).","authors":"Andrea Novelli, Manuela Caprioli, Roberto Ambrosini, Alessandra Costanzo, Diego Rubolini, Marco Parolini, Andrea Romano","doi":"10.1111/1749-4877.70173","DOIUrl":"https://doi.org/10.1111/1749-4877.70173","url":null,"abstract":"Parental decisions on breeding, such as brood size and timing of reproduction, influence the early-life environment of the offspring, exposing them to variable levels of stressors, which in turn may affect their fitness. In this context, telomeres, conserved DNA sequences at chromosome ends that shorten with age and stress exposure, are relevant because telomere length may predict survival and act as a biomarker reflecting inherited and stress-induced variation in somatic state, thereby linking early-life conditions to future fitness. However, studies examining whether early-life conditions are associated with telomere length and whether telomere length predicts subsequent survival remain limited and provide contrasting results. We examined the effects of parental decisions (brood size and hatching date), as well as parental age and quality (i.e., outermost tail feather length), on telomere length of male barn swallow (Hirundo rustica) nestlings that recruited in their natal site as breeding adults in the following years. We also investigated whether nestling telomere length predicted long-term survival. Telomeres were shorter with increasing brood size, suggesting a detrimental effect of a stressful developmental environment on telomere length. In addition, nestlings raised by older fathers (but not mothers) had shorter telomeres, indicating a possible father aging effect on telomere length. Furthermore, individuals with longer telomeres at the nestling stage showed a higher likelihood of surviving beyond the first year of life. Overall, our results suggest that early-life telomere length may link parental decisions and age to fitness prospects and may thus be a target of selection even in short-lived species.","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148839994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water Use Behavior of Individual Birds: Ring Ouzels in an Arid High-Mountain Ecosystem. 鸟类个体的水利用行为：干旱高山生态系统中的环羚。

IF 3.7 1区生物学

Integrative zoology Pub Date : 2026-08-21 DOI: 10.1111/1749-4877.70166

Tamara Burgos, Juan P González-Varo, Juan Carlos Illera, Manuel Nogales, Beatriz Rumeu

{"title":"Water Use Behavior of Individual Birds: Ring Ouzels in an Arid High-Mountain Ecosystem.","authors":"Tamara Burgos, Juan P González-Varo, Juan Carlos Illera, Manuel Nogales, Beatriz Rumeu","doi":"10.1111/1749-4877.70166","DOIUrl":"https://doi.org/10.1111/1749-4877.70166","url":null,"abstract":"Water availability strongly constrains animal behavior in arid ecosystems. Species relying on low-water diets must balance hydration needs with foraging, thermoregulation, competition, and predation risk. While most studies focus on species-level responses, less is known about how individuals within populations differ in water-related behavior. Here, we examine individual and population-level variation in water-use patterns in a small wintering population of ring ouzels (Turdus torquatus) within an arid high-mountain ecosystem on Tenerife (Canary Islands), using camera trapping and individual recognition during the 2022-2023 wintering season. We analyzed multiple components of water-use behavior in relation to ambient temperature, social context, and dominance status. Drinking probability during visits (70% on average) and visit duration increased with temperature, consistent with rising thermoregulatory demands, although individual responses differed among water sources. Bathing behavior showed a consistent quadratic relationship with temperature across individuals, peaking at intermediate values (∼15°C). Social context also shaped behavior: Drinking probability increased with the number of conspecifics, whereas visits were shorter when more birds were present. Dominant individuals made more visits, drank more frequently, and consumed larger daily water volumes-up to 30 mL (∼30% of body mass)-than subordinates, revealing unequal access to water within the population. Together, our results demonstrate that environmental heterogeneity and social hierarchy jointly structure access to a critical resource, generating pronounced intra-specific behavioral variation. As aridity intensifies under climate change, individual behavioral flexibility and social dynamics may play a key role in determining population persistence and the maintenance of bird-mediated ecosystem functions.","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148792713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evolutionary and Epidemiological Characterization of Multidrug-Resistant Escherichia coli Isolated From Pangolins in China. 中国穿山甲多药耐药大肠杆菌的进化与流行病学特征

IF 3.7 1区生物学

Integrative zoology Pub Date : 2026-08-21 DOI: 10.1111/1749-4877.70161

Yawen Wang, Xue Wang, Jianan Zhao, Jun Zeng, Shijia Hu, Fang Ji, Guoying Dong, Hongxuan He, Chengmin Wang

{"title":"Evolutionary and Epidemiological Characterization of Multidrug-Resistant Escherichia coli Isolated From Pangolins in China.","authors":"Yawen Wang, Xue Wang, Jianan Zhao, Jun Zeng, Shijia Hu, Fang Ji, Guoying Dong, Hongxuan He, Chengmin Wang","doi":"10.1111/1749-4877.70161","DOIUrl":"https://doi.org/10.1111/1749-4877.70161","url":null,"abstract":"Malayan pangolin populations have fallen to a critically endangered level, and illegal trafficking of wild pangolins is a global problem. Little is known about antimicrobial-resistant bacteria (MDRB) harbored by pangolins, although pangolins are frequently consumed as food or used in traditional medicine. In this study, we report for the first time that strains of multidrug-resistant Escherichia coli were found in a captured Malayan pangolin in Shenzhen, China (December 2018). Antibiotic resistance genes (ARGs) were found in great diversity and abundance on conjugative plasmids, according to genomic analysis. IncX1-type replicon plasmids carrying numerous ARGs and conserved mobile genetic elements predominated in MDR E. coli isolates. Their ability to transport genes horizontally was further strengthened by structural characteristics such class 1 integron-like gene clusters, IS26, and Tn1721, which may have made cross-species dissemination easier. Overall, our findings suggest that illegal transboundary trafficking of Malayan pangolins may contribute to the dissemination of MDRB and highlight the potential public health risks associated with uncontrolled wildlife trade.","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148792639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0