Ecological Research最新文献

{"title":"Latitudinal Gradients of Species Richness in Marine Benthos: Insights From Japan's Tidal Flat Areas","authors":"Beverly Tudence Jaspe,&nbsp;Gen Kanaya,&nbsp;Osamu Miura","doi":"10.1111/1440-1703.70068","DOIUrl":"10.1111/1440-1703.70068","url":null,"abstract":"<p>Studies on latitudinal diversity gradients (LDG) in Japan are restricted by either a relatively small number of sampling sites or are limited to a specific taxon. This study examined the LDG in marine benthos across 171 stations along the tidal flats of Japan spanning a latitudinal range from 24° N to 45° N. Published datasets of macrobenthic communities were obtained to determine the multi-scale variability of marine macrobenthos in 1106 census plots from Hokkaido to Okinawa. A total of 1271 taxa were identified. Mollusca was the dominant taxonomic group in our datasets with 36% of the total composition, followed by Malacostraca (28%), Annelida (20%), and other groups (16%). Gamma diversity was highly variable (2–132 species), with a station in Hokkaido having the lowest species and a station in Kyushu having the highest regional diversity. Decreasing trends were observed in all major taxonomic groups as they plotted against latitude. The analysis of species richness across the latitudinal gradient revealed a general decline in diversity from low to high latitudes, consistent with the expected LDG pattern. However, an unexpected peak in species diversity was also observed in mid-latitude regions (32° N–34° N), particularly in the Kyushu region, possibly due to its extensive tidal flats and its historical connectivity to the Eurasian Continent. Our findings provide new insights into the geographical patterns of macrobenthic diversity along Japanese coasts.</p>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://esj-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1440-1703.70068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668576","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}

{"title":"Using Autonomous Recording Units to Detect Variation in Cicada Calling Pattern Across Urbanized and Green Spaces","authors":"Hiroki Mori,&nbsp;Takeshi Osawa,&nbsp;Kozue Nitta,&nbsp;Seikoh Sekikawa","doi":"10.1111/1440-1703.70066","DOIUrl":"10.1111/1440-1703.70066","url":null,"abstract":"<p>Technological advances in Autonomous Recording Units (ARUs) have facilitated broad-scale and high-resolution acoustic monitoring of wildlife. Although acoustic monitoring has been widely applied to bats and birds, relatively few studies have focused on invertebrates, despite their significant contributions to soundscapes. Cicadas, which produce loud, continuous calls, are particularly suitable for acoustic monitoring and can strongly shape soundscapes in urban ecosystems. Therefore, we conducted continuous acoustic monitoring of cicadas at six sites in the Tokyo–Kanagawa metropolitan region, including both urban and green spaces. Recordings were made over 61 days, from June to August 2024, corresponding to the cicada activity period. Spectrograms were generated, and species were identified by manually detecting characteristic call frequency patterns and subsequently verifying them aurally. Results showed that six cicada species were detected. The timing of first calls was broadly consistent with previous studies but showed site-specific differences, likely reflecting local habitat conditions. Diel activity patterns revealed that <i>Platypleura kaempferi</i> and <i>Graptopsaltria nigrofuscata</i> extended their calling into nighttime hours at urban sites, possibly due to artificial illumination and elevated nighttime temperatures resulting from the urban heat island effect. By contrast, <i>Hyalessa maculaticollis</i>, <i>Tanna japonensis</i>, <i>Meimuna opalifera</i>, and <i>Cryptotympana facialis</i> maintained diurnal calling patterns regardless of site type. These results highlight interspecific variation in calling phenology and responses to local conditions, including urbanization, and demonstrate the effectiveness of ARUs for long-term monitoring of cicada activity.</p>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://esj-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1440-1703.70066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668468","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}

{"title":"Ontogenetic Shifts in Prey Selection by Flower-Dwelling Spiders: Implications of Predation by Small Immatures on Floral Exploiters","authors":"Hiroshi S. Ishii,&nbsp;Yutaka H. Tamura","doi":"10.1111/1440-1703.70064","DOIUrl":"10.1111/1440-1703.70064","url":null,"abstract":"<div>\u0000 \u0000 <p>Flower-dwelling spiders are often regarded as antagonists in pollination systems because they prey on pollinators. However, their ecological roles may vary across development, particularly if immatures preferentially target floral exploiters rather than effective pollinators. We examined ontogenetic variation in flower use and prey composition among flower-dwelling spiders. Field surveys conducted in 2023 and 2024 recorded 792 individuals, with <i>Diaea subdola</i> and <i>Xysticus</i> spp. being most abundant. Developmental differences in flower use were evident: small immatures (&lt; 2 mm body length) predominantly occupied flowers of <i>Lespedeza bicolor</i> and <i>Hosta sieboldiana,</i> whereas larger immatures (≥ 2 mm) and adults more frequently used <i>Patrinia scabiosifolia</i> and <i>Libanotis coreana</i>. Thrips (Thysanoptera), generally considered floral exploiters, were overwhelmingly abundant on <i>L. bicolor</i> and <i>H. sieboldiana</i>, and prey records (dominated by <i>D. subdola</i>) showed that small immatures primarily consumed thrips, larger immatures fed mainly on flies, and adults preyed predominantly on bees and wasps. These results suggest that small immatures may function as selective predators of floral exploiters, potentially reducing nectar and pollen loss and indirectly benefiting plants, whereas adults may exert antagonistic effects through predation on pollinators. Our findings demonstrate that the ecological impacts of flower-dwelling spiders are strongly stage dependent, highlighting the importance of incorporating predator ontogeny when evaluating their roles in pollination networks.</p>\u0000 </div>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668513","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}

{"title":"Cost of Living in Leopard Habitat: Pattern, Drivers, and Perceptions of Human-Leopard Conflict in the Aravalli Hilly Landscape, Rajasthan, India","authors":"Vijay Kumar Koli,&nbsp;Kamal Vaishnav,&nbsp;Nirbhay Singh Chouhan,&nbsp;Utkarsh Prajapati","doi":"10.1111/1440-1703.70069","DOIUrl":"10.1111/1440-1703.70069","url":null,"abstract":"<div>\u0000 \u0000 <p>Large carnivores face increasing challenges in human-dominated landscapes, where conflict undermines both livelihoods and conservation goals. We investigated the patterns, drivers, and community perceptions of human–leopard conflict in and around Jaisamand Wildlife Sanctuary, southern Aravalli Hills, Rajasthan, India, between 2011 and 2024. We documented a total of 572 conflict incidents, largely livestock depredation (98.08%), with goats, cows and calves being most frequently targeted. Conflict occurred year-round, peaking at night in cattle sheds and households. Modeling identified elevation, land-use/land-cover, distance to sanctuary, and distance to human habitation (DTHH) as strong predictors of conflict probability, with highest risk in built-up and scrubland areas near village peripheries. Husbandry practices, including poorly constructed cattle sheds seem to be associated with increased livestock vulnerability, while coping strategies (e.g., night guarding) were largely ineffective. Only 31% of depredation cases were claimed for compensation, and approved payouts were significantly lower than actual losses, reinforcing economic grievances. Encouragingly, no retaliatory killings were reported, reflecting cultural coexistence toward wildlife. Surveys (<i>n</i> = 201) revealed that local attitude were close to neutral, with only a slight negative tendency (mean attitude score = −0.2). Education level emerged as the strongest determinant of coexistence, with more educated respondents expressing greater positive orientation toward leopards. Our findings demonstrate that conflict in semi-arid landscapes arises from the intersection of ecological, socio-economic, and institutional factors. Effective coexistence strategies should prioritize leopard-proof livestock enclosures, equitable and timely compensation, education-based awareness programs, and landscape-level planning beyond protected areas to foster long-term human–leopard coexistence.</p>\u0000 </div>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668512","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}

{"title":"Plants of Turkish Ultramafic Areas: Past, Present & Future","authors":"Beste Gizem Özbey,&nbsp;Nishanta Rajakaruna,&nbsp;Roger D. Reeves","doi":"10.1111/1440-1703.70067","DOIUrl":"10.1111/1440-1703.70067","url":null,"abstract":"<div>\u0000 \u0000 <p>Ultramafic (serpentine) soils, derived from magnesium- and iron-rich rocks, impose extreme edaphic conditions characterized by generally low nutrient availability, high Mg:Ca ratios, and elevated concentrations of metals such as Ni, Cr, and Co. These “harsh environments” act as natural laboratories for studying plant adaptation, endemism, and metal tolerance. Türkiye, with its extensive and geologically diverse ultramafic outcrops, harbors one of the richest serpentine floras in the Northern Hemisphere yet remains understudied relative to other regions. This review synthesizes the historical and contemporary understanding of plant life on Turkish ultramafics, tracing early botanical exploration, herbarium-based chemical analyses, and field discoveries that have revealed over 60 Ni-hyperaccumulating taxa and at least 130 serpentine endemics. We highlight how advances in analytical techniques, from portable X-ray fluorescence (pXRF) to molecular and genomic tools, have expanded the detection and ecological interpretation of metal accumulation. Despite this progress, large geographic and taxonomic gaps persist, particularly for central and eastern Anatolia. Future research priorities include comprehensive chemical reanalysis of herbarium specimens, targeted field surveys of unexplored ultramafic regions, integrative molecular–ecophysiological studies to clarify the mechanisms of serpentine tolerance as well as phylogenetic origins of serpentine endemic plants, and applied studies on conservation approaches for Turkish serpentinophytes. Together, these efforts will enhance our understanding of plant evolution in metal-rich environments and contribute to both biodiversity conservation and applied fields such as phytoremediation and biogeochemical prospecting.</p>\u0000 </div>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668444","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}

{"title":"Intercolony and Intra-Annual Variations in Isotopic Niche of Red-Footed Boobies Sula sula in the Tropical Indian Ocean","authors":"Jennifer Appoo,&nbsp;Nancy Bunbury,&nbsp;Jake Letori,&nbsp;Aurelie Hector,&nbsp;Christopher W. Jones,&nbsp;Nicholas A. J. Graham,&nbsp;Sébastien Jaquemet","doi":"10.1111/1440-1703.70062","DOIUrl":"10.1111/1440-1703.70062","url":null,"abstract":"<p>Foraging seabirds experience diverse environmental conditions, resulting in variation in their foraging ecology across different populations. Documenting this variability is important for understanding how seabirds adapt to environmental change. We examined the trophic ecology of red-footed boobies (<i>Sula sula</i>) at three relatively remote colonies in the tropical Indian Ocean: Aldabra Atoll, Farquhar Atoll and Diego Garcia. We compared red-footed booby diet and isotopic niches based on regurgitates and stable isotope compositions (δ¹⁵N and δ¹³C) of whole blood and body feathers, representing breeding and non-breeding periods, respectively. At Diego Garcia, breeding red-footed boobies consumed only flying fish, whereas at Farquhar and Aldabra they had a more diverse diet. Breeding red-footed boobies at Diego Garcia had lower δ¹⁵N and δ¹³C values and a broader isotopic niche width along the δ¹³C axis than those at Aldabra and Farquhar. Considering the resident behavior of red-footed boobies, we further explored intra-annual variation in isotopic niches within each colony. All colonies showed minimal isotopic niche overlap between breeding and non-breeding periods, which represent the northwest and southeast monsoon seasons, and had higher δ¹⁵N and δ¹³C values and larger isotopic niche widths during the southeast monsoon. Red-footed booby isotopic niches were segregated from those of other seabirds, such as lesser frigatebirds (<i>Fregata ariel</i>) at Aldabra and brown noddies (<i>Anous stolidus</i>) at Farquhar. Our study shows trophic niche plasticity in red-footed boobies in the tropical Indian Ocean. We provide ecological baselines to support monitoring of the impacts of environmental change on the diets and isotopic niches of red-footed boobies across the rapidly changing tropical Indian Ocean.</p>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://esj-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1440-1703.70062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668322","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}

{"title":"Host–Parasite Interaction Networks of Helminths of Sigmodontine Rodents in Two Different Areas of the Brazilian Atlantic Forest","authors":"Thiago dos Santos Cardoso,&nbsp;Natália Alves Costa,&nbsp;Socrates Fraga da Costa-Neto,&nbsp;Gabriel Alves dos Santos Attanazio,&nbsp;Martín Roberto del Valle Alvarez,&nbsp;Arnaldo Maldonado Junior,&nbsp;Cecilia Siliansky de Andreazzi,&nbsp;Rosana Gentile","doi":"10.1111/1440-1703.70057","DOIUrl":"10.1111/1440-1703.70057","url":null,"abstract":"<p>Studies in parasite community ecology seek to understand species distributions along environmental gradients, as well as the processes associated with host–parasite interactions. Host–parasite interaction networks can identify potential routes of parasite transmission among hosts and determine which species play a central role in a community. Two host–parasite interaction networks from different regions were analyzed, considering three helminth parasite parameters (presence and absence, abundance, and prevalence) in rodent species. Network modularity, nestedness, and degree of specialization were calculated for each network to determine whether variations in the presence or abundance of rodent species and their helminth parasites led to differences in host–parasite interactions and network structure. Metrics of network centrality, degree, and betweenness were calculated for each rodent and helminth species in the two networks. The influence of the functional attributes of hosts and parasites, as well as their abundances, on network metrics was also evaluated. Higher network modularity than nestedness, along with high network specialization, was observed in both networks, suggesting functional and/or taxonomic specialization between helminth species and their hosts. Abundance was a more important predictor of the topological role of host and parasite species than their functional attributes. These findings suggest that, despite local differences, the structure of host–parasite interaction networks may be conserved across different environments, modulated by similar factors such as host–parasite coevolution, with the most abundant host and parasite species playing a central role in ecological networks.</p>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://esj-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1440-1703.70057","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668223","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}

{"title":"Partitioning of Major and Trace Elements in a Stand of the Nickel Hyperaccumulator Rinorea cf. bengalensis in Borneo","authors":"Philip Nti Nkrumah,&nbsp;Amelia Corzo-Remigio,&nbsp;Sukaibin Sumail,&nbsp;Guillaume Echevarria,&nbsp;Peter D. Erskine,&nbsp;Antony van der Ent","doi":"10.1111/1440-1703.70061","DOIUrl":"10.1111/1440-1703.70061","url":null,"abstract":"<p><i>Rinorea</i> cf. <i>bengalensis</i> is a tropical nickel hyperaccumulator plant known to have very high nickel concentrations, with up to 7.9 wt% nickel in its phloem tissue. We investigated the partitioning of major and trace elements in a stand of <i>R</i>. cf. <i>bengalensis</i> in Borneo. We established two 3 × 3 m² (18 m²) plots with 1 × 1 m² subplots and sampled all plant species (grouped into <i>Rinorea</i> and non-<i>Rinorea</i>) along with six representative soil cores to a depth of 30 cm. The total biomass of the vegetation in the plot was 17.4 kg (mean: 966 g m⁻²), with elemental budgets (g m⁻²) of 1.31 magnesium, 0.30 phosphorus, 0.78 sulfur, 6.25 potassium, 12.5 calcium, 0.11 manganese, 0.86 iron, 0.06 cobalt, 0.21 nickel, and 0.09 zinc. <i>Rinorea</i> cf. <i>bengalensis</i> made up 83% of the total biomass stand, containing &gt; 75% of the respective major and trace elemental budget, reaching 94% and 99% for calcium and nickel, respectively. In the biomass stand of both <i>Rinorea</i> and non-<i>Rinorea</i>, stems were a major reservoir for all the elements, except for manganese, iron, and nickel in non-<i>Rinorea</i> and iron in <i>Rinorea</i>, which were primarily stored in the roots (&gt; 50%). Hyperaccumulators have a large impact on the cycling of nickel and other elements in their ecosystem.</p>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://esj-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1440-1703.70061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668105","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}

{"title":"The Urban Trees of India (UTI): A Database of Trees in Built-Up Areas of India","authors":"Harsh Yadav,&nbsp;Arkajyoti Shome,&nbsp;Bhavna Sharma,&nbsp;Shyam S. Phartyal,&nbsp;Takehiro Sasaki","doi":"10.1111/1440-1703.70063","DOIUrl":"10.1111/1440-1703.70063","url":null,"abstract":"<div>\u0000 \u0000 <p>Urbanization is causing irreversible changes in land cover and driving environmental alterations. Tree species have been an integral part of urban India, and their demand is expected to grow rapidly with the fast pace of urbanization in recent decades. However, the absence of a comprehensive database on Indian urban tree species limits the assessment of the positive feedback loop in terms of urban growth. The Urban Trees of India (UTI) database documents tree species that grow in urban areas across India. It can potentially address dynamic questions related to the distribution, ecology, and biogeography of urban tree species, facilitating effective conservation and management. The UTI database includes taxonomic classification, nativity, foliage retention, and IUCN Red List status for 742 urban tree species in India. The database comprises 7646 tree species records from 380 urban areas in 32 Indian states and Union Territories (UT). The curation of the UTI database will substantially contribute to a better understanding of ecological functionality and urban ecosystem management. The Metadata for this abstract is available in MetaCat in JaLTER at https://doi.org/10.20783/DIAS.JLE.95. The data files can be accessed on Figshare through this link: https://doi.org/10.6084/m9.figshare.28416695.</p>\u0000 </div>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147669023","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}

{"title":"X-ray Fluorescence Microscopy Computed Tomography Reveals Internal Distribution of Selenium in Hyperaccumulator Plant Seeds","authors":"Mirko Salinitro,&nbsp;Michela Schiavon,&nbsp;Maggie-Anne Harvey,&nbsp;Dennis Brueckner,&nbsp;Antony van der Ent","doi":"10.1111/1440-1703.70060","DOIUrl":"10.1111/1440-1703.70060","url":null,"abstract":"<p>Selenium hyperaccumulators are plants able to accumulate over 1000 μg selenium g⁻¹ in their shoots while growing in their natural environments. The most studied selenium hyperaccumulators are <i>Astragalus bisulcatus, Neptunia amplexicaulis</i> (Fabaceae), and <i>Stanleya pinnata</i> (Brassicaceae). To date, several studies have investigated selenium distribution in these species, most of which have focused on the leaves and roots. Other plant organs, such as seeds, remain poorly investigated. In this study, we determined selenium distribution in the seeds of these three key hyperaccumulating species using X-ray fluorescence microscopy computed tomography (XFM-CT). Seeds of <i>A. bisulcatus, S</i><i>. pinnata</i>, and <i>N. amplexicaulis</i> were also analyzed for total elemental content. Single seeds of each species were examined using XFM-CT at beamline P06 of PETRA III (Deutsches Elektronen-Synchrotron, DESY) to generate detailed elemental maps. Selenium concentrations were 1800 ± 180, 1240 ± 170, and 870 ± 100 μg g⁻¹ DW in <i>N. amplexicaulis, A. bisulcatus</i>, and <i>S. pinnata</i> seeds, respectively. In general, selenium is enriched in the cotyledon parenchyma and radicle cortex of all seeds. Selenium is generally absent from the seed coat and endosperm. Seleni is present in the inner part of the seed coat (tegmen). The distribution of selenium in tissues that are especially sensitive to herbivory appears to support the defense function of this metalloid in hyperaccumulator plants.</p>","PeriodicalId":11434,"journal":{"name":"Ecological Research","volume":"41 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://esj-journals.onlinelibrary.wiley.com/doi/epdf/10.1111/1440-1703.70060","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147669022","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}