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Gene expression plasticity in response to rapid and extreme elevation changes in Perdix hodgsoniae (Tibetan Partridge). 西藏鹧鸪(Perdix hodgsoniae)基因表达可塑性对快速极端海拔变化的响应
IF 2.6 2区 生物学 Q1 ORNITHOLOGY Pub Date : 2025-02-05 Epub Date: 2024-09-23 DOI: 10.1093/ornithapp/duae050
Nan Wang, Catalina Palacios, Megan Brown, Teresa Raba, Jonathan Heid, Xujie Ding, Zhibu Ou, Nishma Dahal, Sangeet Lamichhaney

Phenotypic plasticity is a vital biological process facilitating the persistence of organisms amid rapid environmental changes. Investigating the genetic basis of plastic traits necessitates transplantation experiments, but much of the existing research has focused on laboratory model systems. Transplant experiments in the wild may provide better understanding of how plasticity operates in the context of real-world challenges. However, performing transplantation experiments in non-model systems, such as birds, could be challenging. In this study, we aim to develop Perdix hodgsoniae (Tibetan Partridge) inhabiting the highlands of the Tibetan Plateau as a suitable system to study genetic basis underlying short-term plastic response to rapid changes in elevation. We did a first attempt of field-based transplantation experiment by exposing P. hodgsoniae individuals to extreme change in elevation from their native elevation (3,623 m) to a low elevation outside their natural distribution range (500 m). We compared changes in gene expression in these birds at different time points, pre-transplant (day 0), and post-transplant (days 3 and 22). The birds successfully survived transplantation and exhibited well-being after 22 days. We identified a total of 715 differentially expressed genes (DEGs) across these time points. Our analysis revealed a genome-wide decrease in expression following the transplantation, indicating that the birds possibly exhibited stress-induced transcriptional attenuation (SITA) because of the extreme change in elevation, suggesting a broader response at the transcriptional level, possibly as a mechanism to cope with extreme changes in the environment. Our analysis further suggested that heat stress posed an immediate challenge for the birds following the transplant, as we identified changes in expression in many genes associated with heat stress response. Our findings affirm the viability of conducting transplant experiments in the P. hodgsoniae and provides initial insights into gene expression changes associated with the plastic response to rapid changes in elevation in these birds.

表型可塑性是促进生物在快速环境变化中持续生存的重要生物过程。研究可塑性性状的遗传基础需要移植实验,但现有的研究大多集中在实验室模型系统上。野外的移植实验可能会让我们更好地理解可塑性是如何在现实世界的挑战中运作的。然而,在非模型系统(如鸟类)中进行移植实验可能具有挑战性。在这项研究中,我们的目标是将居住在青藏高原高原的西藏鹧鸪(Perdix hodgsoniae)作为一个合适的系统来研究对海拔快速变化的短期可塑性反应的遗传基础。我们进行了第一次野外移植试验,将霍氏假单胞杆菌个体暴露于海拔高度的极端变化中,从其天然海拔高度(3,623 m)到其自然分布范围外的低海拔(500 m)。我们比较了这些鸟类在移植前(第0天)和移植后(第3天和第22天)不同时间点的基因表达变化。这些鸟成功地在移植中存活下来,并在22天后表现出健康。我们在这些时间点共鉴定了715个差异表达基因(DEGs)。我们的分析显示,移植后全基因组表达下降,表明鸟类可能由于海拔高度的极端变化而表现出应激诱导的转录衰减(SITA),这表明在转录水平上有更广泛的反应,可能是应对环境极端变化的一种机制。我们的分析进一步表明,热应激对移植后的鸟类构成了直接的挑战,因为我们发现了许多与热应激反应相关的基因表达的变化。我们的研究结果证实了在霍氏假单抗中进行移植实验的可行性,并为这些鸟类对海拔快速变化的可塑性反应相关的基因表达变化提供了初步的见解。
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引用次数: 0
Feathers, folklore, and eco-literacy: Stories ascribe cultural keystone status to avian scavengers in South Asian cities. 羽毛、民间传说和生态素养:故事将南亚城市的鸟类食腐动物视为文化基石。
IF 2.6 2区 生物学 Q1 ORNITHOLOGY Pub Date : 2024-10-15 eCollection Date: 2025-02-05 DOI: 10.1093/ornithapp/duae056
Urvi Gupta, Nishant Kumar

We examined the cultural significance of commensal avian scavenger species-vultures, kites, and crows-and their exploitation of anthropogenic resources and sentiments within Delhi's urban landscapes. For this, we investigated the intrinsic values attributed to these birds by people, which are indicative of complex, rapidly urbanizing social-ecological systems. Semi-structured interviews revealed folk perceptions intertwined with socio-cultural narratives and traditions, shaped by observations of avian morphology, ecology, and behavior. Birds' nesting habits, habitats, home ranges, and foraging behaviors affected people's perceptions, while ecosystem services inspired zoomorphism and anthropomorphism via vernacular-nomenclature (e.g., chidiya collectively for songbirds, giddha for scavenging raptors). Culturally rooted perceptions, which informed ritual feeding practices and shaped prevalent attitudes toward commensal species, fostered mutual tolerance, and brought people into closer contact with urban biodiversity. Such physical and cultural proximity is a defining characteristic distinguishing tropical urban ecosystems from their Western counterparts. We also uncovered the web of social-technological influences on animal-related folk stories. The urbanization of perceptions in vulture extinction zones revealed shifts in social-ecological relationships with wildlife. It adds cultural dimensions to the currently appreciated keystone status of vultures, vital for their erstwhile coexistence at extremely high densities in South Asia. Urban transformations, technological advancements, and media exposure potentially reshaped human-animal interface, with media misinformation affecting personalized ecologies. Conflicts and health concerns arose from media narratives on garbage-consuming animals. Our findings offer insights to prevent severing of people and nature connections due to urbanization (e.g., technological applications can integrate scientific knowledge with biocultural narratives and folklore), promoting a new-age eco-literacy.

我们研究了食腐共生鸟类——秃鹫、风筝和乌鸦——的文化意义,以及它们对德里城市景观中人为资源的利用和情感。为此,我们调查了人类赋予这些鸟类的内在价值,这些价值反映了复杂的、快速城市化的社会生态系统。半结构化访谈揭示了民间观念与社会文化叙事和传统交织在一起,形成于对鸟类形态、生态和行为的观察。鸟类的筑巢习性、栖息地、活动范围和觅食行为影响着人们的感知,而生态系统服务则通过方言命名激发了动物形似主义和拟人主义(例如,鸣禽统称为chidiya,食腐猛禽统称为giddha)。植根于文化的观念为仪式喂养提供了信息,并形成了对共生物种的普遍态度,促进了相互宽容,并使人们与城市生物多样性建立了更密切的联系。这种物质和文化上的接近性是热带城市生态系统区别于西方同行的一个决定性特征。我们还发现了社会技术对与动物有关的民间故事的影响。秃鹰灭绝区的城市化观念揭示了秃鹰与野生动物之间社会生态关系的转变。它为秃鹫目前受到重视的重要地位增加了文化层面,秃鹫过去在南亚极高密度的共存至关重要。城市转型、技术进步和媒体曝光可能重塑人与动物的界面,媒体错误信息影响个性化生态。媒体对消耗垃圾的动物的报道引发了冲突和健康问题。我们的研究结果为防止因城市化而切断人与自然的联系提供了见解(例如,技术应用可以将科学知识与生物文化叙事和民间传说结合起来),促进新时代的生态素养。
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引用次数: 0
Dawn Songs: A Birdwatcher’s Field Guide to the Poetics of Migration 黎明之歌:观鸟者迁徙诗学的野外指南
2区 生物学 Q1 ORNITHOLOGY Pub Date : 2023-11-13 DOI: 10.1093/ornithapp/duad045
Henry T Armistead
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引用次数: 0
Natal forest fragment size does not predict fledgling, pre-migration or apparent annual survival in Wood Thrushes 出生森林碎片大小不能预测羽翼,预迁移或明显的年存活率在画眉
2区 生物学 Q1 ORNITHOLOGY Pub Date : 2023-10-13 DOI: 10.1093/ornithapp/duad054
Sue M Hayes, Brendan P Boyd, Alexandra M Israel, Bridget J M Stutchbury
Abstract Determining the drivers and mechanisms for first year survival of migratory songbirds has been an understudied area in population dynamics due to the difficulty in tracking juveniles once they have dispersed from the natal site. With the advancement in miniaturization of radio-tags (battery life ~400 days) and the development of the Motus Wildlife Tracking System, we tracked 189 Wood Thrush (Hylocichla mustelina) nestlings through independence and to fall migration departure, and their return the following spring. Natal forest fragment size and landscape forest cover (at different spatial scales) were not strong predictors of fledgling, pre-migration, or apparent annual survival; and onset of fall migration was best predicted by fledge date but not natal fragment size. Survival probability was lowest the first 16 days post-fledging (70%, or 0.86 weekly survival probability), very high for juveniles as they explored the landscape prior to fall migration (89%, or 0.99 weekly survival probability) and low during their first migration and wintering season (26%, or 0.95 weekly survival probability). To our knowledge, this is the first study to directly estimate annual apparent juvenile survival in a migratory songbird using year-round radio-tracking. Our study suggests that small forest fragments are important for the conservation for forest songbirds because they can support high survival of juveniles.
迁徙鸣禽第一年生存的驱动因素和机制在种群动力学中一直是一个研究不足的领域,因为幼鸟一旦离开出生地就很难追踪。随着无线电标签小型化(电池寿命~400天)的发展和Motus野生动物跟踪系统的发展,我们跟踪了189只画眉鸟(Hylocichla mustelina)的雏鸟,从独立到秋季迁徙离开,再到第二年春天返回。不同空间尺度下的初生森林破碎块大小和景观森林覆盖度对初生、预迁移或表观年存活率的预测作用不强;羽翼出生日期最能预测秋季迁徙的开始,而不是出生碎片的大小。雏鸟羽化后的前16天生存率最低(70%,周生存率0.86),雏鸟在秋季迁徙前探索景观时生存率很高(89%,周生存率0.99),在第一次迁徙和越冬季节生存率很低(26%,周生存率0.95)。据我们所知,这是第一次使用全年无线电跟踪直接估计候鸟年表观幼崽存活率的研究。我们的研究表明,森林小碎片对森林鸣禽的保护具有重要意义,因为它们可以支持幼鸟的高存活率。
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引用次数: 0
Thank you to the reviewers of the 2023 Ornithological Applications, volume 125 感谢2023年《鸟类学应用》第125卷的审稿人
2区 生物学 Q1 ORNITHOLOGY Pub Date : 2023-10-12 DOI: 10.1093/ornithapp/duad051
Catherine Lindell
Journal Article Corrected proof Thank you to the reviewers of the 2023 Ornithological Applications, volume 125 Get access Catherine Lindell Catherine Lindell Michigan State University, East Lansing, Michigan, USA clindell@americanornithology.org Search for other works by this author on: Oxford Academic Google Scholar Ornithological Applications, duad051, https://doi.org/10.1093/ornithapp/duad051 Published: 12 October 2023 Article history Corrected and typeset: 12 October 2023 Published: 12 October 2023
期刊文章校样感谢《2023鸟类学应用》第125卷的审稿人获取Catherine Lindell Catherine Lindell密歇根州立大学,东兰星,密歇根州,美国clindell@americanornithology.org搜索作者的其他作品:牛津学术谷歌学者鸟类学应用,duad051, https://doi.org/10.1093/ornithapp/duad051出版日期:2023年10月12日文章历史校正和排版:2023年10月12日出版日期:2023年10月12日
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引用次数: 0
Predator exclosures increase nest success but reduce adult survival and increase dispersal distance of Piping Plovers, indicating exclosures should be used with caution 捕食者的封闭提高了巢的成功率,但降低了成虫的存活率,并增加了管鸻的扩散距离,表明应谨慎使用封闭
2区 生物学 Q1 ORNITHOLOGY Pub Date : 2023-09-11 DOI: 10.1093/ornithapp/duad047
Michelle L Stantial, Jonathan B Cohen, Abigail J Darrah, Brooke Maslo
Abstract Diagnosing unsuccessful population outcomes for endangered species requires understanding relationships among vital rates, ecological conditions, and management variables, including unintended consequences of management actions. The federally threatened Piping Plover (Charadrius melodus) has remained below recovery goals, despite intensive management, including the use of nest exclosures to protect eggs from predation. We studied ecological factors and management actions affecting nest success, survival, site fidelity, and dispersal of the New Jersey, USA population of Piping Plovers over a 7-yr period, focused on evaluating the impact of exclosures on demography. While exclosures increased nest success by 62% over a 34-day period, exclosed nests were 4.7 times more likely to be abandoned, which was likely a consequence of adult mortality. Abandoned nests were associated with lower adult survival, particularly for males, but there was evidence that site fidelity was greater for birds whose last nest was exclosed vs. unexclosed. Regardless of exclosure status, females who abandoned their first nesting attempt dispersed 10 times farther between attempts than those whose first nest attempts were lost to other causes. Moreover, females that abandoned their last nesting attempts dispersed farther than females that lost their last nest to predation or flooding. This difference was more substantial for males. Our results corroborate studies documenting adverse impacts of exclosures on survival, and, for the first time, demonstrate that surviving mates (particularly females) emigrate from the breeding site, resulting in a realized loss of a local breeding pair. Further, we used an online population project model (i.e., PiperEx) to demonstrate that exclosures are not expected to improve growth rates in New Jersey. We conclude that there is a trade-off among increased nest survival, reduced adult survival and increased emigration rates, and we encourage managers to consider whether exclosures are worth the protection of eggs from predators using online decision support tools.
诊断濒危物种不成功的种群结果需要了解生命率、生态条件和管理变量之间的关系,包括管理行为的意外后果。尽管进行了密集的管理,包括使用巢外保护蛋不被捕食,但受到联邦威胁的管道鸻(Charadrius melodus)仍未达到恢复目标。研究了7年来影响美国新泽西州管鸻种群筑巢成功、生存、生境保真度和分布的生态因素和管理措施,重点评估了放养对人口统计学的影响。虽然在34天的时间里,封闭使筑巢成功率提高了62%,但封闭的巢穴被遗弃的可能性增加了4.7倍,这可能是成虫死亡的结果。被遗弃的鸟巢与较低的成虫存活率有关,尤其是雄性,但有证据表明,最后一个鸟巢是封闭的,而不是未封闭的,其位置保真度更高。不管围合状态如何,放弃第一次筑巢尝试的雌鸟在两次尝试之间的分散距离是那些第一次筑巢尝试因其他原因失败的雌鸟的10倍。此外,放弃最后一次筑巢尝试的雌性比因捕食或洪水而失去最后一个巢穴的雌性分散得更远。这种差异在男性中更为明显。我们的研究结果证实了有关封闭对生存不利影响的研究,并首次证明了幸存的配偶(特别是雌性)从繁殖地迁移,导致当地繁殖对的实际损失。此外,我们使用在线人口项目模型(例如,PiperEx)来证明封闭不会提高新泽西州的增长率。我们得出结论,在增加巢穴存活率、降低成虫存活率和增加迁移率之间存在权衡,我们鼓励管理人员考虑是否值得使用在线决策支持工具来保护卵免受捕食者的侵害。
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引用次数: 1
Sixty-years of community-science data suggest earlier fall migration and short-stopping of waterfowl in North America 60年的社区科学数据表明,北美的水禽秋季迁徙提前,停留时间短
2区 生物学 Q1 ORNITHOLOGY Pub Date : 2023-09-01 DOI: 10.1093/ornithapp/duad041
Amelia R Cox, Barbara Frei, Sarah E Gutowsky, Frank B Baldwin, Kristin Bianchini, Christian Roy
Abstract Worldwide, migratory phenology and movement of many bird species is shifting in response to anthropogenic climate and habitat changes. However, due to variation among species and a shortage of analyses, changes in waterfowl migration, particularly in the fall, are not well understood. Fall migration phenology and movement patterns dictate waterfowl hunting success and satisfaction, with cascading implications on economies and support for habitat management and securement. Using 60 years of band recovery data for waterfowl banded in the Canadian Prairie Pothole Region (PPR), we evaluated whether fall migration timing and/or distribution changed in Mallard (Anas platyrhynchos), Northern Pintail (A. acuta), and Blue-winged Teal (Spatula discors) between 1960 and 2019. We found that in the Midcontinent Flyways, Mallards and Blue-winged Teal migrated faster in more recent time periods, whereas Northern Pintail began fall migration earlier. In the Pacific Flyway, Mallards began fall migration earlier. Both Mallards and Northern Pintails showed evidence of short-stopping in the Midcontinent Flyways. Indeed, the Mallard and Northern Pintail distribution of band recovery data shifted 180 and 226 km north, respectively, from 1960 to 2019. Conversely, Blue-winged Teal recovery distributions were consistent across years. Mallards and Northern Pintails also exhibited an increased proportion of band recoveries in the Pacific Flyway in recent decades. We provide clear evidence that the timing and routes of fall migration have shifted over the past 6 decades, but these phenological and spatial shifts differ among species. We suggest that using community-science data collected by hunters themselves to explain one of the group’s major concerns (changes in duck abundance at traditional hunting grounds), within the environmental lens of climate change, may help lead to further engagement and two-way dialogue to support effective waterfowl management for these culturally and ecologically important species.
摘要在世界范围内,许多鸟类的候鸟物候和迁徙正在随着人为气候和栖息地的变化而发生变化。然而,由于物种之间的差异和缺乏分析,水禽迁徙的变化,特别是在秋季,还没有得到很好的理解。秋季迁徙物候和运动模式决定了水禽狩猎的成功和满意度,并对经济和栖息地管理和安全的支持产生连锁影响。利用加拿大草原坑区(PPR) 60年带状水禽的波段恢复数据,我们评估了1960年至2019年间绿头鸭(Anas platyrhynchos)、北方平尾鸭(A. acuta)和蓝翅Teal (Spatula disors)的秋季迁徙时间和/或分布是否发生了变化。我们发现,在大陆中部的迁徙路线上,绿头鸭和蓝翅Teal在最近的时期迁徙得更快,而北方平尾鸭的秋季迁徙开始得更早。在太平洋的迁徙路线上,绿头鸭开始更早的秋季迁徙。绿头鸭和北斑尾鸭都有在大陆中部飞行路线上短暂停留的迹象。事实上,从1960年到2019年,带恢复数据的绿头鸭和北平尾鸭分布分别向北移动了180公里和226公里。相反,蓝翅鸭的恢复分布在不同年份是一致的。近几十年来,绿头鸭和北斑尾鸭在太平洋飞行路线上的带状恢复比例也有所增加。我们提供了明确的证据表明,在过去的60年中,秋季迁徙的时间和路线发生了变化,但这些物候和空间变化在物种之间有所不同。我们建议,在气候变化的环境视角下,利用猎人自己收集的社区科学数据来解释该组织的一个主要问题(传统狩猎场鸭子数量的变化),可能有助于进一步参与和双向对话,以支持对这些文化和生态重要物种进行有效的水禽管理。
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引用次数: 1
Health research in academic health systems: time for a new model. 学术卫生系统的卫生研究:是时候建立新模式了。
2区 生物学 Q1 ORNITHOLOGY Pub Date : 2023-06-20 eCollection Date: 2023-07-01 DOI: 10.1093/haschl/qxad012
Harold R Collard, Sarah Hooper, Joanne Spetz

Research, along with patient care and education, is a core element of the academic health system's tripartite mission; it is essential to the academic health system's societal commitment to advancing the public's health. Research at academic health systems in the United States is increasingly resource-constrained and, in important ways, the underlying financial model supporting it has reached a point of unsustainability. This commentary reviews the roles that health research at academic health systems plays in society, describes the ways in which the current model of health research is under strain, and proposes an evolved model and series of organizational and operational steps to consider in moving health research forward.

研究与病人护理和教育一道,是学术卫生系统三方使命的核心要素;它对于学术卫生系统致力于促进公众健康的社会承诺至关重要。美国学术卫生系统的研究资源日益紧张,而且在一些重要方面,支持研究的基本财务模式已经到了难以为继的地步。这篇评论回顾了学术卫生系统的健康研究在社会中扮演的角色,描述了当前健康研究模式面临压力的方式,并提出了一个不断发展的模式以及一系列组织和操作步骤,供推进健康研究时参考。
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引用次数: 0
Overview of Neurotrauma and Sensory Loss. 神经创伤和感官缺失概述。
2区 生物学 Q1 ORNITHOLOGY Pub Date : 2022-01-01 Epub Date: 2022-05-20 DOI: 10.47363/JNRRR/2022(4)158
Yusuf Mehkri, Chadwin Hanna, Sai Sriram, Ramya Reddy, Jairo Hernandez, Jeff A Valisno, Brandon Lucke-Wold

Neurotrauma can cause devastating outcomes for patients both from primary as well as secondary injury. Sensory loss following neurotrauma is often overlooked and undermanaged. To gain awareness about this important topic, we highlight key findings of visual, hearing, taste, and smell disturbances that can occur after injury. The pathways are highlighted as well as significant pathophysiology. Both primary disruption as well as secondary disruptions from ongoing inflammation are addressed. The figures are designed to be user friendly guides for the clinician to help manage these patients. In the final section, we address key management strategies and approaches. The strategies deal with multidisciplinary care as well as multimodality treatments. This review serves as a primer for early recognition of deficits and initiation of appropriate treatments.

神经创伤可因原发性和继发性损伤对患者造成破坏性后果。神经创伤后的感官缺失往往被忽视和管理不足。为了提高人们对这一重要课题的认识,我们重点介绍了损伤后可能出现的视觉、听觉、味觉和嗅觉障碍的主要发现。我们重点介绍了这些障碍的发生途径以及重要的病理生理学原理。我们还讨论了原发性干扰以及持续炎症引起的继发性干扰。这些图表旨在为临床医生提供用户友好指南,以帮助管理这些患者。在最后一部分,我们讨论了主要的管理策略和方法。这些策略涉及多学科护理和多模式治疗。本综述可作为早期识别缺陷和启动适当治疗的入门指南。
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引用次数: 0
Thank you to the reviewers of the 2020 Condor, volume 122 感谢2020年秃鹰第122卷的审稿人
IF 2.4 2区 生物学 Q1 ORNITHOLOGY Pub Date : 2021-01-27 DOI: 10.1093/condor/duaa053
C. Lindell
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引用次数: 0
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