Ecological Research最新文献_第8页

Announcement of the Ecological Research Paper Award 2025 2025年生态学研究论文奖公告

IF 1.4 4区环境科学与生态学

Ecological Research Pub Date : 2026-05-05 DOI: 10.1111/1440-1703.70071

引用次数: 0

IF 1.4 4区环境科学与生态学

Ecological Research Pub Date : 2026-05-05

引用次数: 0

Announcement of the Ecological Research Paper Award 2025 2025年生态学研究论文奖公告

IF 1.4 4区环境科学与生态学

Ecological Research Pub Date : 2026-05-05 DOI: 10.1111/1440-1703.70071

引用次数: 0

Physiological and Nutritional Mechanisms Underlying the Crimson Coloration of Boxwood on Ultramafic Soils of Sugashima Island, Japan 黄杨在日本Sugashima岛超碱性土壤上呈现深红色的生理和营养机制

IF 1.4 4区环境科学与生态学

Ecological Research Pub Date : 2026-05-04 DOI: 10.1111/1440-1703.70076

Takafumi Mizuno, Yuki Minatani, Mayuko Hara

{"title":"Physiological and Nutritional Mechanisms Underlying the Crimson Coloration of Boxwood on Ultramafic Soils of Sugashima Island, Japan","authors":"Takafumi Mizuno, Yuki Minatani, Mayuko Hara","doi":"10.1111/1440-1703.70076","DOIUrl":"https://doi.org/10.1111/1440-1703.70076","url":null,"abstract":"<div>\u0000 \u0000 The evergreen shrub Buxus microphylla (Buxaceae; Japanese boxwood) forms distinctive ultramafic vegetation in Japan, with populations on Sugashima Island exhibiting unusually vivid crimson leaves in winter. To clarify the physiological and nutritional mechanisms underlying this coloration, we combined field monitoring with laboratory experiments to reproduce leaf reddening under controlled conditions. Field observations revealed that leaves of B. microphylla growing on ultramafic soils turned bright red each winter, whereas those from non-ultramafic sites remained mostly green, except for slight reddening at the Mie University site. The crimson coloration coincided with a seasonal decline in leaf nitrogen (N) and chlorophyll content, suggesting that nutrient limitation enhances pigment imbalance. In laboratory assays, light exposure and sucrose addition strongly promoted chlorophyll degradation, increasing the carotenoid-to-chlorophyll ratio (Car/Chl) by more than 20%. Under dark conditions, both sucrose and N enhanced pigment retention. The Car/Chl ratio consistently ranked as water-only > N-only > multi-nutrient media, indicating that nutrient sufficiency counteracts sugar-induced photoinhibition and chlorophyll breakdown. These results demonstrate that leaf reddening in boxwood is not due to anthocyanin synthesis but rather to a relative enrichment of carotenoids following chlorophyll loss under photoinhibitory conditions. The combination of high irradiance, low temperature, and N deficiency on ultramafic soils promotes this imbalance, producing the intense “crimson boxwood” phenotype. Our findings highlight how nutrient limitation and photoprotection interact to shape adaptive pigmentation in plants growing on ultramafic soils.\u0000 </div>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 1.4 4区环境科学与生态学

Ecological Research Pub Date : 2026-05-04

引用次数: 0

Physiological and Nutritional Mechanisms Underlying the Crimson Coloration of Boxwood on Ultramafic Soils of Sugashima Island, Japan 黄杨在日本Sugashima岛超碱性土壤上呈现深红色的生理和营养机制

IF 1.4 4区环境科学与生态学

Ecological Research Pub Date : 2026-05-04 DOI: 10.1111/1440-1703.70076

Takafumi Mizuno, Yuki Minatani, Mayuko Hara

{"title":"Physiological and Nutritional Mechanisms Underlying the Crimson Coloration of Boxwood on Ultramafic Soils of Sugashima Island, Japan","authors":"Takafumi Mizuno, Yuki Minatani, Mayuko Hara","doi":"10.1111/1440-1703.70076","DOIUrl":"https://doi.org/10.1111/1440-1703.70076","url":null,"abstract":"<div>\u0000 \u0000 The evergreen shrub Buxus microphylla (Buxaceae; Japanese boxwood) forms distinctive ultramafic vegetation in Japan, with populations on Sugashima Island exhibiting unusually vivid crimson leaves in winter. To clarify the physiological and nutritional mechanisms underlying this coloration, we combined field monitoring with laboratory experiments to reproduce leaf reddening under controlled conditions. Field observations revealed that leaves of B. microphylla growing on ultramafic soils turned bright red each winter, whereas those from non-ultramafic sites remained mostly green, except for slight reddening at the Mie University site. The crimson coloration coincided with a seasonal decline in leaf nitrogen (N) and chlorophyll content, suggesting that nutrient limitation enhances pigment imbalance. In laboratory assays, light exposure and sucrose addition strongly promoted chlorophyll degradation, increasing the carotenoid-to-chlorophyll ratio (Car/Chl) by more than 20%. Under dark conditions, both sucrose and N enhanced pigment retention. The Car/Chl ratio consistently ranked as water-only > N-only > multi-nutrient media, indicating that nutrient sufficiency counteracts sugar-induced photoinhibition and chlorophyll breakdown. These results demonstrate that leaf reddening in boxwood is not due to anthocyanin synthesis but rather to a relative enrichment of carotenoids following chlorophyll loss under photoinhibitory conditions. The combination of high irradiance, low temperature, and N deficiency on ultramafic soils promotes this imbalance, producing the intense “crimson boxwood” phenotype. Our findings highlight how nutrient limitation and photoprotection interact to shape adaptive pigmentation in plants growing on ultramafic soils.\u0000 </div>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Detection of Heat and Drought Effects on the Photosynthetic Activity Using Solar-Induced Chlorophyll Fluorescence and a Photochemical Reflectance Index in a Cool-Temperate Larch Forest in Japan 利用太阳诱导的叶绿素荧光和光化学反射指数检测日本寒温带落叶松森林热干旱对光合活性的影响

IF 1.4 4区环境科学与生态学

Ecological Research Pub Date : 2026-05-01 DOI: 10.1111/1440-1703.70074

Tomoki Morozumi, Tomomichi Kato, Hideki Kobayashi, Yoshiyuki Takahashi, Hibiki M. Noda

{"title":"Detection of Heat and Drought Effects on the Photosynthetic Activity Using Solar-Induced Chlorophyll Fluorescence and a Photochemical Reflectance Index in a Cool-Temperate Larch Forest in Japan","authors":"Tomoki Morozumi, Tomomichi Kato, Hideki Kobayashi, Yoshiyuki Takahashi, Hibiki M. Noda","doi":"10.1111/1440-1703.70074","DOIUrl":"https://doi.org/10.1111/1440-1703.70074","url":null,"abstract":"Recent frequent heatwaves have adversely affected the carbon cycles of terrestrial ecosystems. Solar-induced chlorophyll fluorescence (SIF) and the photochemical reflectance index (PRI) can detect heat and drought stress in vegetation. However, the applicability of these indicators in extreme cases, such as heatwaves, needs consideration. We examined diurnal changes observed in tower-based SIF, PRI, canopy conductance, and gross primary productivity (GPP) over 3 weeks during mid-summer in 2022 in a cool-temperate deciduous forest covered by Larix kaempferi (Lamb.) Carrière, in Japan. We found that half-hourly GPP and SIF declined significantly from noon to afternoon during the latter part of clear, extremely hot days (up to 31°C) when the soil water content (SWC) was low (< 21%), and the vapor pressure deficit (VPD) was high (> 15 hPa). Values of GPP and SIF peaked at 21.7°C and 26.8°C, respectively, and they declined at higher temperatures. Canopy conductance declined with increasing air temperature and VPD, suggesting that stomatal closure caused the observed reduction in GPP. To investigate the stress response without light-dependent variations, canopy fluorescence emission efficiency (εF) and light use efficiency (LUE) were calculated from SIF and GPP, respectively. VPD had the most significant negative correlation with PRI, LUE, and εF. εF was also associated with SWC, particularly under lower SWC conditions. Our results demonstrate that SIF and PRI responded to heat and drought with different sensitivities and thresholds and can serve as diagnostic tools to assess the influence of moderate to extreme environments on terrestrial ecosystems.","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1440-1703.70074","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IF 1.4 4区环境科学与生态学

Ecological Research Pub Date : 2026-05-01

引用次数: 0

Detection of Heat and Drought Effects on the Photosynthetic Activity Using Solar-Induced Chlorophyll Fluorescence and a Photochemical Reflectance Index in a Cool-Temperate Larch Forest in Japan 利用太阳诱导的叶绿素荧光和光化学反射指数检测日本寒温带落叶松森林热干旱对光合活性的影响

IF 1.4 4区环境科学与生态学

Ecological Research Pub Date : 2026-05-01 DOI: 10.1111/1440-1703.70074

Tomoki Morozumi, Tomomichi Kato, Hideki Kobayashi, Yoshiyuki Takahashi, Hibiki M. Noda

{"title":"Detection of Heat and Drought Effects on the Photosynthetic Activity Using Solar-Induced Chlorophyll Fluorescence and a Photochemical Reflectance Index in a Cool-Temperate Larch Forest in Japan","authors":"Tomoki Morozumi, Tomomichi Kato, Hideki Kobayashi, Yoshiyuki Takahashi, Hibiki M. Noda","doi":"10.1111/1440-1703.70074","DOIUrl":"https://doi.org/10.1111/1440-1703.70074","url":null,"abstract":"Recent frequent heatwaves have adversely affected the carbon cycles of terrestrial ecosystems. Solar-induced chlorophyll fluorescence (SIF) and the photochemical reflectance index (PRI) can detect heat and drought stress in vegetation. However, the applicability of these indicators in extreme cases, such as heatwaves, needs consideration. We examined diurnal changes observed in tower-based SIF, PRI, canopy conductance, and gross primary productivity (GPP) over 3 weeks during mid-summer in 2022 in a cool-temperate deciduous forest covered by Larix kaempferi (Lamb.) Carrière, in Japan. We found that half-hourly GPP and SIF declined significantly from noon to afternoon during the latter part of clear, extremely hot days (up to 31°C) when the soil water content (SWC) was low (< 21%), and the vapor pressure deficit (VPD) was high (> 15 hPa). Values of GPP and SIF peaked at 21.7°C and 26.8°C, respectively, and they declined at higher temperatures. Canopy conductance declined with increasing air temperature and VPD, suggesting that stomatal closure caused the observed reduction in GPP. To investigate the stress response without light-dependent variations, canopy fluorescence emission efficiency (εF) and light use efficiency (LUE) were calculated from SIF and GPP, respectively. VPD had the most significant negative correlation with PRI, LUE, and εF. εF was also associated with SWC, particularly under lower SWC conditions. Our results demonstrate that SIF and PRI responded to heat and drought with different sensitivities and thresholds and can serve as diagnostic tools to assess the influence of moderate to extreme environments on terrestrial ecosystems.","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1440-1703.70074","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Differences in the Elemental Profiles of Two Obligate Ultramaficophytes From the Balkans: Balkana spergulifolia and Polygonum albanicum 巴尔干半岛两种专性超重植物的元素分布差异：巴尔卡纳和白蓼

IF 1.4 4区环境科学与生态学

Ecological Research Pub Date : 2026-04-27 DOI: 10.1111/1440-1703.70072

Ksenija Jakovljević, Antony van der Ent, Gordana Andrejić, Eva Kabaš, Djordje Božović, Vladan Djordjević

{"title":"Differences in the Elemental Profiles of Two Obligate Ultramaficophytes From the Balkans: Balkana spergulifolia and Polygonum albanicum","authors":"Ksenija Jakovljević, Antony van der Ent, Gordana Andrejić, Eva Kabaš, Djordje Božović, Vladan Djordjević","doi":"10.1111/1440-1703.70072","DOIUrl":"https://doi.org/10.1111/1440-1703.70072","url":null,"abstract":"<div>\u0000 \u0000 Ultramafic soils pose an edaphic challenge to plants, acting as a strong selection factor promoting speciation and endemism. Two obligate ultramaficophytes—Balkana spergulifolia and Polygonum albanicum—were analyzed for elemental profiles (“elementomics”) and differences in response to ultramafic soils. The plant samples, along with associated rhizosphere soils, were collected from selected ultramafic areas in Serbia and analyzed for their elemental concentrations. Slight differences were observed between the soil samples, corresponding to some extent to the degree of serpentinization. The analyzed plants exhibited different strategies in response to excessive element concentrations in the soil. While B. spergulifolia predominantly accumulates nickel (Ni) in its above-ground tissues, in P. albanicum, the main response to soil Ni is exclusion. Further studies are needed to elucidate the pathways of elemental uptake and accumulation in plant tissues.\u0000 </div>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148024008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0