Nature ecology & evolution最新文献_第10页

Shared features of blastula and neural crest stem cells evolved at the base of vertebrates 脊椎动物基部进化出的胚泡干细胞和神经嵴干细胞的共同特征

IF 13.9 1区生物学

Nature ecology & evolution Pub Date : 2024-07-26 DOI: 10.1038/s41559-024-02476-8

Joshua R. York, Anjali Rao, Paul B. Huber, Elizabeth N. Schock, Andrew Montequin, Sara Rigney, Carole LaBonne

{"title":"Shared features of blastula and neural crest stem cells evolved at the base of vertebrates","authors":"Joshua R. York, Anjali Rao, Paul B. Huber, Elizabeth N. Schock, Andrew Montequin, Sara Rigney, Carole LaBonne","doi":"10.1038/s41559-024-02476-8","DOIUrl":"10.1038/s41559-024-02476-8","url":null,"abstract":"The neural crest is a vertebrate-specific stem cell population that helped drive the origin and evolution of vertebrates. A distinguishing feature of these cells is their multi-germ layer potential, which has parallels to another stem cell population—pluripotent stem cells of the vertebrate blastula. Here, we investigate the evolutionary origins of neural crest potential by comparing neural crest and pluripotency gene regulatory networks of a jawed vertebrate, Xenopus, and a jawless vertebrate, lamprey. We reveal an ancient evolutionary origin of shared regulatory factors in these gene regulatory networks that dates to the last common ancestor of extant vertebrates. Focusing on the key pluripotency factor pou5, we show that a lamprey pou5 orthologue is expressed in animal pole cells but is absent from neural crest. Both lamprey and Xenopus pou5 promote neural crest formation, suggesting that pou5 activity was lost from the neural crest of jawless vertebrates or acquired along the jawed vertebrate stem. Finally, we provide evidence that pou5 acquired novel, neural crest-enhancing activity after evolving from an ancestral pou3-like clade. This work provides evidence that both the neural crest and blastula pluripotency networks arose at the base of the vertebrates and that this may be linked to functional evolution of pou5. Comparison of neural crest and pluripotency gene regulatory networks of Xenopus and lamprey reveals shared regulatory factors in the last common ancestor of extant vertebrates and suggests common molecular features of blastula and neural crest stem cells.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":null,"pages":null},"PeriodicalIF":13.9,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141764365","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

Generalism accumulates on the path to success 在通往成功的道路上积累通才

IF 13.9 1区生物学

Nature ecology & evolution Pub Date : 2024-07-26 DOI: 10.1038/s41559-024-02492-8

Lesley T. Lancaster

引用次数: 0

Generalism in species interactions is more the consequence than the cause of ecological success 物种相互作用的普遍性与其说是生态成功的原因，不如说是结果

IF 13.9 1区生物学

Nature ecology & evolution Pub Date : 2024-07-26 DOI: 10.1038/s41559-024-02484-8

Pilar Hurtado, Gregorio Aragón, Marina Vicente, Bo Dalsgaard, Boris R. Krasnov, Joaquín Calatayud

{"title":"Generalism in species interactions is more the consequence than the cause of ecological success","authors":"Pilar Hurtado, Gregorio Aragón, Marina Vicente, Bo Dalsgaard, Boris R. Krasnov, Joaquín Calatayud","doi":"10.1038/s41559-024-02484-8","DOIUrl":"10.1038/s41559-024-02484-8","url":null,"abstract":"Generalism in resource use is commonly considered a critical driver of population success, species distribution and extinction risk. This idea can be questioned as generalism may be a result rather than the cause of species abundance and range size. We tested these contrasting causal hypotheses focusing on host use in three databases encompassing approximately 44,000 mutualistic (hummingbird–plant), commensalistic (lichen–plant) and parasitic (flea–mammal) interactions in 617 ecological communities across the Americas and Eurasia. Across all interaction types, our analyses indicated that range size and abundance influence the probability of encountering hosts and set the arena for species to express generalism potentials or adapt to new hosts. Hence, our findings support the hypothesis that generalism is a consequence of species ecological success. This highlights the importance of ecological opportunity in driving species characteristics considered key for their survival and conservation. Generalism is often assumed to be a cause of species success. This analysis of mutualistic, commensalistic and parasitic interactions supports the alternative causal hypothesis that generalism is the consequence of ecological success.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":null,"pages":null},"PeriodicalIF":13.9,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141764363","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

Transitions between colour mechanisms affect speciation dynamics and range distributions of birds 颜色机制之间的转变影响鸟类的物种动态和分布范围

IF 13.9 1区生物学

Nature ecology & evolution Pub Date : 2024-07-26 DOI: 10.1038/s41559-024-02487-5

Chad M. Eliason, Michaël P. J. Nicolaï, Cynthia Bom, Eline Blom, Liliana D’Alba, Matthew D. Shawkey

{"title":"Transitions between colour mechanisms affect speciation dynamics and range distributions of birds","authors":"Chad M. Eliason, Michaël P. J. Nicolaï, Cynthia Bom, Eline Blom, Liliana D’Alba, Matthew D. Shawkey","doi":"10.1038/s41559-024-02487-5","DOIUrl":"10.1038/s41559-024-02487-5","url":null,"abstract":"Several ecogeographical ‘rules’ have been proposed to explain colour variation at broad spatial and phylogenetic scales but these rarely consider whether colours are based on pigments or structural colours. However, mechanism can have profound effects on the function and evolution of colours. Here, we combine geographic information, climate data and colour mechanism at broad phylogenetic (9,409 species) and spatial scales (global) to determine how transitions between pigmentary and structural colours influence speciation dynamics and range distributions in birds. Among structurally coloured species, we find that rapid dispersal into tropical regions drove the accumulation of iridescent species, whereas the build-up of non-iridescent species in the tropics was driven by a combination of dispersal and faster in situ evolution in the tropics. These results could be explained by pleiotropic links between colouration and dispersal behaviour or ecological factors influencing colonization success. These data elucidate geographic patterns of colouration at a global scale and provide testable hypotheses for future work on birds and other animals with structural colours. Combining geographic information, climate data and colour mechanism at broad phylogenetic and spatial scales, the authors determine how transitions between pigmentary and structural colours influence bird speciation dynamics.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":null,"pages":null},"PeriodicalIF":13.9,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141764364","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

Mapping every adult baobab (Adansonia digitata L.) across the Sahel and relationships to rural livelihoods 绘制萨赫勒地区每一棵成年猴面包树（Adansonia digitata L.）的分布图及其与农村生计的关系。

IF 13.9 1区生物学

Nature ecology & evolution Pub Date : 2024-07-25 DOI: 10.1038/s41559-024-02483-9

Ke Huang, Martin Brandt, Pierre Hiernaux, Compton J. Tucker, Laura Vang Rasmussen, Florian Reiner, Sizhuo Li, Ankit Kariryaa, Maurice Mugabowindekwe, Bowy den Braber, Jennifer Small, Scott Sino, Rasmus Fensholt

{"title":"Mapping every adult baobab (Adansonia digitata L.) across the Sahel and relationships to rural livelihoods","authors":"Ke Huang, Martin Brandt, Pierre Hiernaux, Compton J. Tucker, Laura Vang Rasmussen, Florian Reiner, Sizhuo Li, Ankit Kariryaa, Maurice Mugabowindekwe, Bowy den Braber, Jennifer Small, Scott Sino, Rasmus Fensholt","doi":"10.1038/s41559-024-02483-9","DOIUrl":"10.1038/s41559-024-02483-9","url":null,"abstract":"The baobab tree (Adansonia digitata L.) is an integral part of rural livelihoods throughout the African continent. However, the combined effects of climate change and increasing global demand for baobab products are currently exerting pressure on the sustainable utilization of these resources. Here we use sub-metre-resolution satellite imagery to identify the presence of nearly 2.8 million (underestimation bias 27.1%) baobab trees in the Sahel, a dryland region of 2.4 million km2. This achievement is considered an essential step towards an improved management and monitoring system of valuable woody species. Using Senegal as a case country, we find that 94% of rural buildings have at least one baobab tree in their immediate surroundings and that the abundance of baobabs is associated with a higher likelihood of people consuming a highly nutritious food group: dark green leafy vegetables. The generated database showcases the feasibility of mapping the location of single tree species at a sub-continental scale, providing vital information in times when deforestation and climate change cause the extinction of numerous tree species. Sub-metre-resolution satellite imagery is used to identify the presence of nearly 2.8 million baobab trees in the Sahel, with 94% of rural buildings in Senegal having at least one baobab tree in their immediate surroundings. The abundance of baobabs is associated with a higher likelihood of people consuming highly nutritious dark green leafy vegetables.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":null,"pages":null},"PeriodicalIF":13.9,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141759828","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

Morphological innovation did not drive diversification in Mesozoic–Cenozoic brachiopods 形态创新并没有推动中生代-新生代腕足动物的多样化。

IF 13.9 1区生物学

Nature ecology & evolution Pub Date : 2024-07-25 DOI: 10.1038/s41559-024-02491-9

Zhen Guo, Michael J. Benton, Thomas L. Stubbs, Zhong-Qiang Chen

{"title":"Morphological innovation did not drive diversification in Mesozoic–Cenozoic brachiopods","authors":"Zhen Guo, Michael J. Benton, Thomas L. Stubbs, Zhong-Qiang Chen","doi":"10.1038/s41559-024-02491-9","DOIUrl":"10.1038/s41559-024-02491-9","url":null,"abstract":"Over long spans of geological time, various groups of organisms may wax and wane, experiencing times of apparent success and contraction. These rises and falls are often said to reflect either opportunities created by climate change or the relative success of innovative characteristics. Phylum Brachiopoda was one of the most successful marine clades before the Permian/Triassic mass extinction (PTME), but after this event, they became marginal components of marine communities through to the present day. How brachiopod morphological innovations reacted to swiftly declining diversity has long remained poorly understood. Here we analyse morphological evolution over the 300 Myr (Permian–Quaternary) history of the four major Mesozoic–Cenozoic brachiopod orders (Terebratulida, Rhynchonellida, Spiriferinida, Athyridida). Unexpectedly, their disparities reached or exceeded pre-PTME levels, but were decoupled from generic richness, which was generally low. Distribution of taxa in morphospace and shifts in centroid indicate that all four orders exploited new morphospaces when adapting to post-Permian environments. A comparison of morphospace occupation and diversity evolution suggests that the high extinction rate of brachiopods and the limited diversification of new forms may have accounted for the depauperate nature of modern-day brachiopods. Analysing more than 1,000 genera of four major orders of brachiopods spanning the Permian to the Quaternary, the authors find that despite low levels of taxonomic richness after the Permian/Triassic mass extinction, brachiopods continued to innovate morphologically, indicative of high evolutionary adaptability.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":null,"pages":null},"PeriodicalIF":13.9,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141759829","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

Ecological dynamics of moa extinctions reveal convergent refugia that today harbour flightless birds 驼鸟灭绝的生态动态揭示了如今庇护着不会飞的鸟类的趋同避难所。

IF 13.9 1区生物学

Nature ecology & evolution Pub Date : 2024-07-24 DOI: 10.1038/s41559-024-02449-x

Sean Tomlinson, Mark V. Lomolino, Jamie R. Wood, Atholl Anderson, Stuart C. Brown, Sean Haythorne, George L. W. Perry, Janet M. Wilmshurst, Jeremy J. Austin, Damien A. Fordham

{"title":"Ecological dynamics of moa extinctions reveal convergent refugia that today harbour flightless birds","authors":"Sean Tomlinson, Mark V. Lomolino, Jamie R. Wood, Atholl Anderson, Stuart C. Brown, Sean Haythorne, George L. W. Perry, Janet M. Wilmshurst, Jeremy J. Austin, Damien A. Fordham","doi":"10.1038/s41559-024-02449-x","DOIUrl":"10.1038/s41559-024-02449-x","url":null,"abstract":"Human settlement of islands across the Pacific Ocean was followed by waves of faunal extinctions that occurred so rapidly that their dynamics are difficult to reconstruct in space and time. These extinctions included large, wingless birds called moa that were endemic to New Zealand. Here we reconstructed the range and extinction dynamics of six genetically distinct species of moa across New Zealand at a fine spatiotemporal resolution, using hundreds of thousands of process-explicit simulations of climate–human–moa interactions, which were validated against inferences of occurrence and range contraction from an extensive fossil record. These process-based simulations revealed important interspecific differences in the ecological and demographic attributes of moa and established how these differences influenced likely trajectories of geographic and demographic declines of moa following Polynesian colonization of New Zealand. We show that despite these interspecific differences in extinction dynamics, the spatial patterns of geographic range collapse of moa species were probably similar. It is most likely that the final populations of all moa species persisted in suboptimal habitats in cold, mountainous areas that were generally last and least impacted by people. We find that these refugia for the last populations of moa continue to serve as isolated sanctuaries for New Zealand’s remaining flightless birds, providing fresh insights for conserving endemic species in the face of current and future threats. Reconstructing Holocene range and extinction dynamics of moa (order Dinornithiformes), the authors determine that despite interspecifically different dynamics, spatial patterns of collapse were probably similar. They also find that the likely final refugia for moa were in the same areas and ecological conditions where New Zealand’s remaining flightless birds persist today.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":null,"pages":null},"PeriodicalIF":13.9,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141759825","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

Iron-coated Komodo dragon teeth and the complex dental enamel of carnivorous reptiles 铁涂层科莫多龙牙齿和食肉爬行动物复杂的牙釉质。

IF 13.9 1区生物学

Nature ecology & evolution Pub Date : 2024-07-24 DOI: 10.1038/s41559-024-02477-7

Aaron R. H. LeBlanc, Alexander P. Morrell, Slobodan Sirovica, Maisoon Al-Jawad, David Labonte, Domenic C. D’Amore, Christofer Clemente, Siyang Wang, Finn Giuliani, Catriona M. McGilvery, Michael Pittman, Thomas G. Kaye, Colin Stevenson, Joe Capon, Benjamin Tapley, Simon Spiro, Owen Addison

{"title":"Iron-coated Komodo dragon teeth and the complex dental enamel of carnivorous reptiles","authors":"Aaron R. H. LeBlanc, Alexander P. Morrell, Slobodan Sirovica, Maisoon Al-Jawad, David Labonte, Domenic C. D’Amore, Christofer Clemente, Siyang Wang, Finn Giuliani, Catriona M. McGilvery, Michael Pittman, Thomas G. Kaye, Colin Stevenson, Joe Capon, Benjamin Tapley, Simon Spiro, Owen Addison","doi":"10.1038/s41559-024-02477-7","DOIUrl":"10.1038/s41559-024-02477-7","url":null,"abstract":"Komodo dragons (Varanus komodoensis) are the largest extant predatory lizards and their ziphodont (serrated, curved and blade-shaped) teeth make them valuable analogues for studying tooth structure, function and comparing with extinct ziphodont taxa, such as theropod dinosaurs. Like other ziphodont reptiles, V. komodoensis teeth possess only a thin coating of enamel that is nevertheless able to cope with the demands of their puncture–pull feeding. Using advanced chemical and structural imaging, we reveal that V. komodoensis teeth possess a unique adaptation for maintaining their cutting edges: orange, iron-enriched coatings on their tooth serrations and tips. Comparisons with other extant varanids and crocodylians revealed that iron sequestration is probably widespread in reptile enamels but it is most striking in V. komodoensis and closely related ziphodont species, suggesting a crucial role in supporting serrated teeth. Unfortunately, fossilization confounds our ability to consistently detect similar iron coatings in fossil teeth, including those of ziphodont dinosaurs. However, unlike V. komodoensis, some theropods possessed specialized enamel along their tooth serrations, resembling the wavy enamel found in herbivorous hadrosaurid dinosaurs. These discoveries illustrate unexpected and disparate specializations for maintaining ziphodont teeth in predatory reptiles. Chemical and structural imaging of Komodo dragon teeth reveals that they maintain their sharp cutting edges through iron-enriched coatings, a unique adaptation compared with theropod dinosaurs (for which they have previously been used as an extant model).","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":null,"pages":null},"PeriodicalIF":13.9,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41559-024-02477-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141759826","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

Komodo dragons sequester iron in their teeth to maintain a cutting edge 科莫多龙将铁封存在牙齿中，以保持锋利。

IF 13.9 1区生物学

Nature ecology & evolution Pub Date : 2024-07-24 DOI: 10.1038/s41559-024-02479-5

引用次数: 0

Author Correction: Power laws in species’ biotic interaction networks can be inferred from co-occurrence data 作者更正：物种生物相互作用网络中的幂律可从共生数据中推断出来

IF 13.9 1区生物学

Nature ecology & evolution Pub Date : 2024-07-22 DOI: 10.1038/s41559-024-02508-3

Nuria Galiana, Jean-François Arnoldi, Frederico Mestre, Alejandro Rozenfeld, Miguel B. Araújo

引用次数: 0