Yi Huang, Guanghua Zhao, Yang Yang, Jian Yang, Wu Zhi Jia Ba, Jia Lin Li
{"title":"Dynamics of Potential Distribution and Cultivation Areas of Plantago asiatica L. Under Climate Change: A Case Study of the Uppers of Dadu River—Minjiang River Basin","authors":"Yi Huang, Guanghua Zhao, Yang Yang, Jian Yang, Wu Zhi Jia Ba, Jia Lin Li","doi":"10.1002/ece3.72172","DOIUrl":"https://doi.org/10.1002/ece3.72172","url":null,"abstract":"<p>Global warming has induced significant shifts in spatiotemporal environmental patterns of plants. <i>P. asiatica</i>, highly prized for its edible and medicinal value, is widely harvested and utilized by residents in the upper reaches of the Dadu River and Minjiang River. This study employed ensemble models to simulate the potential distribution of <i>P. asiatica</i> in this region, predicting the impacts of future climate change on its distribution and niche. Additionally, a production dynamics model integrating the synergistic effects of ecological suitability and nutritional components of <i>P. asiatica</i> was developed to delineate its current and future potential cultivation zones. The results revealed the following: (1) Currently, both suitable habitats and cultivation zones of <i>P. asiatica</i> are primarily distributed in low-altitude river valley areas within the upper reaches of the Minjiang River and Dadu River. (2) In future periods, high-quality suitable habitats and cultivation zones of <i>P. asiatica</i> will increase to varying degrees, with its niche exhibiting a trend of migration toward higher-altitude regions. (3) Under the SSP5-8.5 climate emission scenario, the areas of suitable habitats and cultivation zones of <i>P. asiatica</i> will experience the greatest expansion, accompanied by the largest amplitude of niche migration. This study will facilitate the formulation of suitability-based management strategies for <i>P. asiatica</i> in the upper reaches of the Dadu River and Minjiang River, and provide a scientific reference for the sustainable utilization of mountain plant resources under climate change.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72172","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145146658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hidden in Plain Sight: Integrative Taxonomy Discovers Two New Species of Digitate Soft Corals in the Urban Waters of China's Greater Bay Area","authors":"Yi-Xuan Li, Janice Wingyan Ng, Haixin Loke, Lan Liu, Jian-Wen Qiu","doi":"10.1002/ece3.72228","DOIUrl":"https://doi.org/10.1002/ece3.72228","url":null,"abstract":"<p>Digitate or lobate scleralcyonacean soft corals are common in tropical reef ecosystems, yet their morphological plasticity and insufficient genetic information hinder our understanding of their diversity. In the China Seas, only four such species, all in the genus <i>Paraminabea</i> (Coralliidae), have been documented. Here, we describe <i>Parasphaerasclera dimorpha</i> sp. nov. (Parasphaerascleridae) and <i>Paraminabea inflata</i> sp. nov. from the urban waters of Hong Kong and Zhuhai. These species are distinct in morphology (colony shape and sclerite structure) and genetics from previously reported species. Genome skimming data of two new species and <i>Param. rubeusa</i> from two families were analyzed. Phylogenetic analyses were conducted using <i>MutS</i>, <i>28S</i> rRNA, and 14 mitochondrial protein-coding genes, which recovered <i>Paras. dimorpha</i> sp. nov. as sister to <i>Paras. grayi</i> and <i>Param. inflata</i> sp. nov. as sister to <i>Param. aldersladei</i>. Seven mitochondrial gene orders and six rearrangement events were detected across families, and Parasphaerascleridae represents an early diverging clade within scleralcyonacean soft corals with a conserved gene order. In contrast, within Coralliidae, there are seven gene rearrangement patterns. Overall, we discovered two new species of digitate soft corals, underscoring the high diversity of soft corals in China's Hong Kong–Zhuhai–Macau Greater Bay Area and the urgency of documenting cryptic marine diversity in this highly urbanized area. Our genome skimming data for these two species, as well as a species without any molecular data before this study (i.e., <i>Param. rubeusa</i>), will be useful for further phylogenetic studies of soft corals.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72228","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145146635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Giuseppe Orlando, Arianna Passarotto, Chiara Morosinotto, Davide M. Dominoni, Patrik Karell
{"title":"Experimental Exposure to Noise Affects Hunting Behavior Already From a Young Age in a Nocturnal Acoustic Predator","authors":"Giuseppe Orlando, Arianna Passarotto, Chiara Morosinotto, Davide M. Dominoni, Patrik Karell","doi":"10.1002/ece3.72171","DOIUrl":"https://doi.org/10.1002/ece3.72171","url":null,"abstract":"<p>Anthropogenic noise is an increasing form of environmental change that alters natural soundscapes. Human activities, including road traffic, have led to a notable increase in ambient noise, which may impair how animals use their sensory systems to fulfill vital activities. Previous experiments suggest that noise affects the hunting behavior of nocturnal predators, but it is still scarcely documented how the exposure to anthropogenic noise at night affects the behavior of nocturnal animals throughout their growth. Here, we used captive-reared Tawny Owls (<i>Strix aluco</i>), nocturnal raptors relying on hearing to locate prey at night, to test the effect of traffic noise on prey detection at two different ages. Our findings show that noise lowers the rate of prey detection and increases the time needed to locate the prey regardless of the age the owls were tested. Although prey detection improved in older owls (i.e., at the subadult stage), it was still impaired by noise. Moreover, we show that the head-bobbing behavior (i.e., head movements performed to enhance the acoustic localization of a potential prey) was displayed more times by subadults, and it was enhanced by noise regardless of the owls' age. Our study provided new insights about the detrimental effects of noise pollution on the behavior of night-active animals, showing that noise disrupts prey detection already from early life stages, which implies that both young and adult survival may be negatively impacted. Future studies should examine how these results may be relevant for individual fitness and population dynamics in the wild.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72171","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shawna L. Rowe, Zoie C. Lopez, Danaka Ross, Cynthia Sackos, Stephanie S. Porter, Maren L. Friesen, Chandra N. Jack
{"title":"Evidence of Rapid Evolution in Herbivory Defense Responses With Conserved Trade-Offs in Populations of Medicago polymorpha","authors":"Shawna L. Rowe, Zoie C. Lopez, Danaka Ross, Cynthia Sackos, Stephanie S. Porter, Maren L. Friesen, Chandra N. Jack","doi":"10.1002/ece3.72220","DOIUrl":"https://doi.org/10.1002/ece3.72220","url":null,"abstract":"<p>Theories explaining the evolution of plant defensive strategies are difficult to experimentally test. Biological invasion scenarios can serve as helpful natural experiments for examining the evolutionary dynamics of plant defenses when plants become established as potential hosts in new environments. This study uses a historical invasion by <i>Medicago polymorpha</i> (Burr Clover) to test the predictive power of the Shifting Defense Hypothesis (SDH) by investigating variation in plant defenses to herbivorous insects. We compared the feeding preferences of a generalist and a specialist herbivore on native and invasive populations of <i>M. polymorpha</i>. We document a shift in herbivore preference patterns for constitutive versus herbivore-induced tissues when comparing plants from native and invaded ranges. However, specific biochemical defenses showed a conserved negative correlation between constitutive and inducible defenses across both ranges, indicating a fundamental trade-off in defense strategy that persists despite allocation differences, suggesting defense evolution that was not revealed by tests in this study. These results provide evidence of evolutionary shifts in plant palatability that are consistent with predictions of the SDH, which predicts evolutionary shifts in defense allocation. Our findings reveal complex evolutionary dynamics that underlie invasion success and demonstrate that invasive <i>M. polymorpha</i> have undergone evolutionary adaptation in defense strategy beyond any immediate ecological advantages of enemy release, providing insight into how invasive plants successfully adapt to novel herbivore communities over time.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 10","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72220","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145146503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Keith Chaulk, Myrle Ballard, Stewart Hill, David Wolfrey, Mina Campbell, Mike Sutherland, Solomon Wawatie, Len Auger
{"title":"Bridging, Braiding, and Weaving Indigenous and Western Science to Understand and Make Predictions About Weather and Climate Change","authors":"Keith Chaulk, Myrle Ballard, Stewart Hill, David Wolfrey, Mina Campbell, Mike Sutherland, Solomon Wawatie, Len Auger","doi":"10.1002/ece3.72085","DOIUrl":"https://doi.org/10.1002/ece3.72085","url":null,"abstract":"<p>In this study, Indigenous Knowledge Holders were gathered in a collaborative forum to discuss weather, in particular, Indigenous Science knowledge related to severe weather, climate change, and weather prediction methods. Weather forecasting methods that arose in discussion were further explored based on a framework of <i>Bridging</i>, <i>Braiding</i>, and <i>Weaving</i> knowledge systems. Numerous Indigenous Science-based weather prediction methods were documented, with most lending themselves to follow-up testing. The Knowledge Holders emphasized that Indigenous Science is an important component within the broader domain of Indigenous Traditional Knowledge, with current and historic empirical and holistic insights into natural phenomena. There was consensus among the Knowledge Holders that Indigenous Science should not be perceived as subordinate to Western methodologies but instead viewed as a complementary and equivalent knowledge system. This paper underscores the importance of a co-produced approach to research where Indigenous Knowledge Holders share their expertise to enrich and inform Western research design, including the interpretation of study results and the implementation of subsequent policy and decision-making. We provide examples of <i>Bridging</i>, <i>Braiding</i>, and <i>Weaving</i> Indigenous Science using weather-related phenomena, such as animal behavior, atmospheric patterns, and plant growth indicators, while also offering insights into the impacts of climate change and severe weather.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72085","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145146385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Morphological Variations in Toad-Headed Agama: Potential Responses to Diverse Microhabitats","authors":"Shuran Li, Jingjing Chen, Xixi Liang, Xin Hao, Chenxu Wang, Baojun Sun, Yongpu Zhang","doi":"10.1002/ece3.72188","DOIUrl":"https://doi.org/10.1002/ece3.72188","url":null,"abstract":"<p>The adaptive response of animals to microhabitat variations attracts much attention in evolutionary biology. Animal morphological traits exhibit close associations with microhabitat utilization, critically influencing organismal performance in specific habitats. However, how diverse desert microhabitats drive variations in morphology and related functions remains largely unclear. Here, with two populations of toad-headed agama (<i>Phrynocephalus przewalskii</i>) inhabiting semi-arid and arid areas, we compared the microhabitat characteristics as well as the variations in morphological characteristics and locomotor performances (running and burrowing) of lizards. Furthermore, by relating the functional differences and morphology, and thus the variation in microhabitats, we aimed to predict the adaptive morphological responses of toad-headed agama to a variation in microhabitats. We found the population from open microhabitats with solid substrates possessed longer forelimbs (brachium and antebrachium) and appendages (metacarpus, phalanges, front claw, and hind claw). They also presented higher sprint speeds and enhanced burrowing capabilities, particularly on a hard soil matrix. Therefore, the differences in morphology and function between the populations support the hypothesis that morphological characteristics are compatible with function and potentially indicate adaptive strategies within different microhabitats.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72188","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145146383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Catarina S. Carvalho, Raquel Moura Machado, Maristerra R. Lemes, Domingos Cardoso
{"title":"Ecological Niche Modeling Predicts Alarming Impacts of Global Climate Change on Economically Important Neotropical Trees","authors":"Catarina S. Carvalho, Raquel Moura Machado, Maristerra R. Lemes, Domingos Cardoso","doi":"10.1002/ece3.72105","DOIUrl":"https://doi.org/10.1002/ece3.72105","url":null,"abstract":"<p>The neotropical papilionoid legume genus <i>Dipteryx</i> comprises tree species widely used for seed harvesting and logging. In Amazonia, all eight known <i>Dipteryx</i> species are internationally recognized in the timber trade as <i>cumaru</i>, whereas two others, known as <i>tonka</i> beans, are appreciated for their aromatic seeds. Non-Amazonian species also have uses, such as <i>baru</i> nuts (<i>D. alata</i>) from the Cerrado and <i>fava-de-morcego</i> (<i>D</i>. <i>lacunifera</i>) from the Caatinga with its edible seeds and dense wood. Amazonia is already highly affected by uncontrolled exploitation and deforestation, which will exacerbate the expected future scenarios of climate change due to severe drought and flooding. These environmental catastrophes have the potential to cause mass species extinction and severely hit vulnerable Amazonian urban populations, Indigenous people, and traditional communities that derive their livelihood from the forest. Here, we assess how the near-term future (2021–2040) global climate change may affect the distribution of <i>Dipteryx</i> species under the moderate and worse greenhouse gas emission scenarios. Additionally, we incorporate insights from the Last Glacial Maximum global changes to enhance our understanding. The ecological niche modeling revealed that while the potential distribution of most Amazonian species remains stable despite global climate change, species with restricted distributions are more vulnerable to global warming. Furthermore, the great ecological predilection of <i>Dipteryx</i> species for wet settings makes them reliant on healthy forest ecosystems. The pressures of logging and deforestation pose significant threats to their survival and to Amazonian biodiversity as a whole.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72105","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145146393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kirra Kent, Aldo Ríos Martínez, Kristen Guelly, Jaime Pinzon, Boyd A. Mori
{"title":"Edge Effects and Pitfall Trap Design Influence Spider Diversity and Assemblages in Canola Agroecosystems on the Canadian Prairies","authors":"Kirra Kent, Aldo Ríos Martínez, Kristen Guelly, Jaime Pinzon, Boyd A. Mori","doi":"10.1002/ece3.72205","DOIUrl":"https://doi.org/10.1002/ece3.72205","url":null,"abstract":"<p>Spiders (Araneae) are generalist predators in agroecosystems and may contribute to biological control in canola (<i>Brassica napus</i> L. and <i>B. rapa</i> L.). However, their diversity and community structure remain understudied in the Canadian Prairies. To address this knowledge gap, we surveyed spider assemblages in the Aspen Parkland region of Alberta, Canada, using pitfall traps placed at field edges and interiors during the 2021 and 2022 growing seasons. We collected 968 spiders in 74 species across 14 families, with Lycosidae and Linyphiidae being the most abundant. Spider abundance was consistently greater at field edges, although family-level composition varied by year and location. In 2023, we tested pitfall trap modifications to improve spider retention, evaluating (1) trap diameter, (2) preservative substrate (glass beads vs. propylene glycol), and (3) polytetrafluoroethylene (PTFE; Fluon, a non-stick fluoropolymer) coated trap interiors (to reduce friction and prevent escape). This was tested across canola habitats adjacent to grass- or tree-dominated non-crop habitat edges. Trap catches, and resulting richness and diversity, were significantly higher in large PTFE-treated traps, particularly in treed-edge habitats compared to other treatment combinations. These results underscore the importance of non-crop field margins in maintaining spider diversity and highlight design improvements to optimize passive sampling. Our findings provide a regional baseline for spider assemblages in canola systems and offer methodological advances to support future ecological monitoring and conservation biological control efforts in Prairie agroecosystems.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72205","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145146279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction to “Non-Native Woody Plant Species Show Different Leaf Functional Traits and Herbivory Levels From Native Ones in the Urban Areas of Beijing, China”","authors":"","doi":"10.1002/ece3.72130","DOIUrl":"https://doi.org/10.1002/ece3.72130","url":null,"abstract":"<p>Wang, Y., S. Zhang, X. Duan, and K. Ma. 2025. “Non-Native Woody Plant Species Show Different Leaf Functional Traits and Herbivory Levels From Native Ones in the Urban Areas of Beijing, China.” <i>Ecology and Evolution</i> 15, no. 8: e71947. https://doi.org/10.1002/ece3.71947.</p><p>In the Abstract, the sentence:</p><p>“The nutrient contents, defensive traits, and levels of herbivory were measured in 2681 <b>leaves</b> across 138 (52 native and 86 non-native species) woody plant species.”</p><p>was incorrect.</p><p>This should have read:</p><p>“The nutrient contents, defensive traits, and levels of herbivory were measured in 2681 <b>plants</b> across 138 (52 native and 86 non-native species) woody plant species.”</p><p>The dataset consisted of over 20,000 leaves, averaged at the plant level, resulting in 2681 plants as the unit of analysis.</p><p>In the Results section, the sentence:</p><p>“In total, we collected 26,165 leaves from <b>2682</b> individual plants belonging to 36 families, 83 genera, and 138 species (61 shrub species and 77 tree species).” was incorrect.</p><p>This should have read:</p><p>“In total, we collected 26,165 leaves from <b>2681</b> individual plants belonging to 36 families, 83 genera, and 138 species (61 shrub species and 77 tree species).”</p><p>These corrections do not affect the results, interpretation, or conclusions of the study.</p><p>The online version of this article has been corrected accordingly.</p><p>We apologize for this error.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72130","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145146392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reproductive Allocation of the Habitat-Forming Intertidal Macroalga Ascophyllum nodosum Decreases at Its Northern Distribution Edge","authors":"Constança Albuquerque, Birgit Olesen, Núria Marbà, Dorte Krause-Jensen","doi":"10.1002/ece3.72141","DOIUrl":"https://doi.org/10.1002/ece3.72141","url":null,"abstract":"<p>The habitat-forming intertidal brown alga <i>Ascophyllum nodosum</i> has its colder northern distribution limit at 69°N in Disko Bay, Greenland. Its reproductive effort has never been assessed there despite expected northward expansion with climate change. We analyzed reproductive allocation and phenology at the northern distribution edge and across the geographical distribution range through field studies at three Greenland sites and one Danish site, supplemented with a literature survey. Because <i>Ascophyllum</i> is long-lived and forms annual segments through apical growth, old shoots sampled in the reproductive season revealed receptacle formation with segment age, from the tip to the base of the shoots. We confirmed the fertility of the northernmost populations, as zygotes formed from gametes. We found a consistent pattern of receptacle formation with larger receptacles closer to the canopy top and receptacle abundance following a quadratic relationship with segment age. <i>Ascophyllum</i>'s reproductive allocation constitutes 33%–39% of its annual production in the Disko Bay and increases towards southern, warmer latitudes. Reproductive phenology also varies significantly with latitude and temperature, showing a 4.5-day delay in the reproduction peak for every degree northward and a 14-day delay with every 1°C decrease in temperature. The carbon flux released from the reproductive structures to the surrounding Arctic ecosystem at the end of the reproductive season was significant, amounting to 212–827 g C m<sup>−2</sup> year<sup>−1</sup> in Greenland, which should be considered in future productivity assessments. Synthesis: Our results indicate different life-history strategies at the opposing distribution edges and stress the importance of temperature as a regulator of <i>Ascophyllum</i> reproduction. Arctic warming will likely enhance reproductive output and stimulate an earlier onset of reproduction. Furthermore, the significant contribution from sexual reproduction to the annual carbon production (26%–41% in Greenland) highlighted its importance to the Arctic detrital community.</p>","PeriodicalId":11467,"journal":{"name":"Ecology and Evolution","volume":"15 9","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ece3.72141","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145146394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}