Plant Ecology最新文献

{"title":"Plant species within-community mobility is determined by traits of leaf economic spectrum, clonality, and life form","authors":"Terezie Rychtecká, Jiří Doležal, Jan Lepš","doi":"10.1007/s11258-023-01379-1","DOIUrl":"https://doi.org/10.1007/s11258-023-01379-1","url":null,"abstract":"<p>Mobility is highly species-specific and individual species mobility can be predicted by species traits, yet this topic remains largely understudied. We analyzed data on species presences/absences in permanent subplots (1m × 1m) within 15 main plots 10m × 10m) over 24 years originating from a grassland biodiversity experiment in Czechia. Plots differed in initial species richness and composition. We estimated mean individual species persistence and searched for any relationship with individual species traits. We also tested the effect of sowing richness/composition on species persistence and community mobility. Our results show that individual species have very different mobilities which vary in time and can be predicted by species traits, most importantly by leaf traits, clonal traits, and traits characterizing species life forms. Trait syndrome corresponding to the traveler part of the mobility gradient typically includes annuals having a taproot, long-lasting seedbank, and high SLA. Trait syndrome of sitters includes perennial hemicryptophytes with effective clonal reproduction and transient seedbank. Importantly, trait association with species mobility is spatial scale dependent, whereas studies on the spatial scale of 0.01m² show that clonality increases mobility, in our case clonality increases the persistence of species in 1m² units. In contrast with an evident linkage between mobility and traits, the effect of community richness/composition on species/community mobility was weak and detectable in the very first years of the experiment only.</p>","PeriodicalId":20233,"journal":{"name":"Plant Ecology","volume":"25 13","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138518826","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":"Effects of abiotic and biotic factors on woody plant diversity across vertical strata in a temperate forest","authors":"Wei Zhang, Hang Shi, Kerong Zhang, Xiao Shu, Haishan Dang","doi":"10.1007/s11258-023-01370-w","DOIUrl":"https://doi.org/10.1007/s11258-023-01370-w","url":null,"abstract":"<p>Broad-leaved deciduous forests in the transitional region from temperate to subtropical climate in China exhibit a diverse assemblage of species. The effects of potential biotic and abiotic factors on forest species diversity are currently of great interest. Here, we quantified the diversity of woody plant species across vertical strata in a fully recorded 25-ha permanent forest dynamics plot (500 × 500 m) in the Mts. Qinling of China using 4 indices: Pielou evenness index (<span>({J}_{SW})</span>), Shannon entropy (<span>(H)</span>), species richness (<span>(S)</span>), and species abundance. Analysis of multivariate linear regression was employed to compare the influences of potential biological, topography, and soil variables on the alpha diversity for each of the 625 sub-plot (20 × 20 m) in the canopy layer, substory layer, and understory layer. The results displayed that the indices of the alpha diversity significantly varied among different forest vertical strata and they were mostly and significantly related to the DBH structure variable, soil available phosphorus (P), and altitude. Despite vertical strata of the studied forest, biological, topographic, and soil factors jointly showed reasonably strong explanatory power for species diversity. More than 12% of the variations of the alpha diversity in canopy layer and 16% in substory layer as well as 8% in understory layer could be collectively explained by biological, topographic, and soil factors. Our findings can contribute to the understanding of how environmental and biological factors interact to affect species diversity and thus are of great implication for the preservation of forest species diversity.</p>","PeriodicalId":20233,"journal":{"name":"Plant Ecology","volume":"25 14","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138518825","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":"No evidence of increased competitive ability among three widespread alien weeds in their introduced range","authors":"Cristian-Andrei Costan, William Godsoe, Jennifer L. Bufford, Philip E. Hulme","doi":"10.1007/s11258-023-01367-5","DOIUrl":"https://doi.org/10.1007/s11258-023-01367-5","url":null,"abstract":"<p>It has long been hypothesised that introduced species can evolve to become better competitors, which in turn will enable some of them to become invasive. The evolution of increased competitive ability hypothesis (EICA) gives a possible answer for why some introduced plants become invasive by stating that they can escape natural coevolved enemies (pests, pathogens and herbivores) in their new environment, thus allowing them to shift resource allocation from producing expensive chemical defences, towards a higher growth rate and competitive ability. In order to test if there is evidence for increased competitive ability in introduced populations, we examined the performance of three <i>Rumex</i> species (<i>R. obtusifolius, R. crispus</i> and <i>R. conglomeratus</i>, Polygonaceae) from their native (United Kingdom) and introduced ranges (New Zealand), when grown alone and in competition with a conspecific from the same or a different provenance. Based on the predictions of EICA, we hypothesised that plants from the introduced provenance would: (i) have a faster growth rate and a larger biomass at harvest; and (ii) would perform better in competition with a conspecific from the native provenance than one from the introduced provenance. Intraspecific competition reduced biomass by as much as 50%. However, contrary to expectations, we found no difference between the performance of plants from native and introduced provenances when grown in direct competition with each other. Plant performance when grown with a conspecific from the same provenance was similar to performance when paired with one from a different provenance, showing that there was no provenance effect. These results were consistent for all three <i>Rumex</i> species. Our findings contradict the predictions of the EICA hypothesis suggesting that other factors are needed to explain the success of <i>Rumex</i> species in New Zealand.</p>","PeriodicalId":20233,"journal":{"name":"Plant Ecology","volume":"202 ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138518820","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":"Interactive effects of elevation and canopy affect bilberry performance in a temperate coniferous region","authors":"Alberto García-Rodríguez, Jörg Albrecht, Danuta Frydryszak, Aida Parres, Nuria Selva","doi":"10.1007/s11258-023-01369-3","DOIUrl":"https://doi.org/10.1007/s11258-023-01369-3","url":null,"abstract":"<p>Shrubs are key components of temperate and boreal ecosystems. Field experiments performed along environmental gradients are useful to study how these species may cope with new climatic conditions. We analyzed the effects of habitat, elevation, and canopy on the performance of the bilberry <i>Vaccinium myrtillus</i>, a key resource for numerous species in boreal and temperate regions of Eurasia. We estimated bilberry dry mass and measured vegetative (ramet height, stem diameter, and shoot production) and reproductive (fruit and seed production) performance of bilberry shrubs in thirty plots located at six study sites established in coniferous forests and subalpine meadows along a 600-m elevation gradient in Tatra National Park, Poland. Although we detected more ramets per plot in the meadows, bilberry dry mass was larger inside the forest, whereas ramets were heavier and taller and produced more annual shoots. A higher proportion of ramets produced fruits in the meadows, where we additionally found a higher proportion of mature seeds per bilberry fruit. When only plots located inside the forest were considered, we detected a negative relation between elevation and bilberry ramet dry mass. Canopy cover affected the number of ramets and the dry bilberry biomass per plot differently depending on the elevation, demonstrating interactive effects of these two variables in bilberry vegetative performance. Fruit production inside the forest was negatively affected by both elevation and canopy cover, while interactive effects of these two variables determined seed development. Bilberry management actions must consider habitat heterogeneity even at small spatial scales and possible interactive effects of environmental variables such as those analyzed in this study.</p>","PeriodicalId":20233,"journal":{"name":"Plant Ecology","volume":"25 11","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138518829","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":"Stacked machine learning models for predicting species richness and endemism for Mediterranean endemic plants in the Mareotis subsector in Egypt","authors":"Heba Bedair, Kamal Shaltout, Marwa Waseem A. Halmy","doi":"10.1007/s11258-023-01366-6","DOIUrl":"https://doi.org/10.1007/s11258-023-01366-6","url":null,"abstract":"Abstract An effective method for identifying species and evaluating the effects of changes caused by humans on specific species is the application of species distribution modelling (SDM) in desert environments. The fact that many dry lands and deserts throughout the world are situated in inhospitable regions may be the reason why such applications are still infrequently used on plant species in Egypt's Mediterranean region. Henceforth, the current study aims to map species richness and weighted endemism of Mediterranean endemics in the Mareotis subsector in Egypt and determine the environmental variables influencing distribution of these taxa. We produced a map of species distribution range using Ensemble SDMs. Further, stacked machine learning ensemble models derived from Random Forest (RF) and MaxEnt models were applied on 382 Mediterranean endemics distribution data to estimate and map diversity and endemism using two indices: species richness (SR) and weighted endemism index (WEI). The best models for ensemble modelling were chosen based on Kappa values and the Area Under the Receiver Operator Curve (AUC). The results showed that the models had a good predictive ability (Area Under the Curve (AUC) for all SDMs was &gt; 0.75), indicating high accuracy in forecasting the potential geographic distribution of Mediterranean endemics. The main bioclimatic variables that impacted potential distributions of most species were wind speed, elevation and minimum temperature of coldest month. According to our models, six hotspots were determined for Mediterranean endemics in the present study. The highest species richness was recorded in Sallum, Matrouh wadis and Omayed, followed by Burg El-Arab, Ras El-Hekma and Lake Mariut. Indeed, species richness and endemism hotspots are promising areas for conservation planning. This study can help shape policy and mitigation efforts to protect and preserve Mediterranean endemics in the coastal desert of Egypt. These hotspots should be focused on by policy makers and stakeholders and declared as protectorates in the region. The largest number of species per area would be protected by focusing primarily on the hotspots with high species richness.","PeriodicalId":20233,"journal":{"name":"Plant Ecology","volume":"59 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134901373","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":"Vegetation patterns across edges of bogs and lakes in spruce and hemlock forests of southwestern Nova Scotia","authors":"Karen Amanda Harper, Wendy Butler, Kaitlyn O’Handley","doi":"10.1007/s11258-023-01364-8","DOIUrl":"https://doi.org/10.1007/s11258-023-01364-8","url":null,"abstract":"","PeriodicalId":20233,"journal":{"name":"Plant Ecology","volume":"210 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135475962","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":"Tree hydrological niche acclimation through ontogeny in a seasonal Amazon forest","authors":"Mauro Brum, Luciana F. Alves, Raimundo C. de Oliveira-Junior, Victor Hugo Pereira Moutinho, Natalia Restrepo-Coupe, Karoline Chaves, Deliane Penha, Neill Prohaska, Plínio Barbosa de Camargo, Grazielle Sales Teodoro, Sebastião Ribeiro Xavier Júnior, Scott C. Stark, José M. S. Moura, Rodrigo Silva, Rafael S. Oliveira, Scott R. Saleska","doi":"10.1007/s11258-023-01361-x","DOIUrl":"https://doi.org/10.1007/s11258-023-01361-x","url":null,"abstract":"","PeriodicalId":20233,"journal":{"name":"Plant Ecology","volume":"68 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135724724","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":"Carbon balance shift in mountain peatlands along a gradient of grazing disturbance in the tropical Andes (Colombia)","authors":"Violeta Martínez-Amigo, Juan C. Benavides","doi":"10.1007/s11258-023-01356-8","DOIUrl":"https://doi.org/10.1007/s11258-023-01356-8","url":null,"abstract":"Abstract High-elevation cushion peatlands are typical ecosystems of the Andes above 4000 m of altitude, with an important role in hydrology and global carbon sequestration. In Tropical Andean context, grazing livestock is one of the main threats to cushion peatlands, altering the vegetation and the storage carbon function. The aim of this research is to understand how grazing influences cushion peatland functioning by identifying ecological thresholds for carbon balance process. The study was carried out in four Andean peatlands in the northern part of Colombian Andes during 2019–2020. We established 30 plots of 1 m 2 where water table level, vegetation cover, and grazing disturbance were monitored. We also measured CO 2 fluxes using an infrared gas analyzer connected to a closed static chamber, which registered net ecosystem exchange and respiration data. Considerable variation in the conservation status of Distichia muscoides cushions was found within the sampled peatlands, reflecting an heterogeneous signal of grazing disturbance that is evident at the plot-specific scale. Decreasing water table level was related with changes in dominant vegetation, from compact cushion species to grasses proliferation, exacerbating disturbance effects and carbon emissions. Mixed-effects logistic regression models showed a carbon balance shift, from CO 2 sink to net emitter, in plots with high disturbance intensity and low D. muscoides cover. This study provides information for a better understanding of mountain peatlands functioning in the Tropical Andes and underlines the key role of D. muscoides cushions and the water table in carbon balance shift.","PeriodicalId":20233,"journal":{"name":"Plant Ecology","volume":"44 21","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135820325","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":"Bark traits affect epiphytic bryophyte community assembly in a temperate forest","authors":"Shinichi Tatsumi, Takayuki Ohgue, Wakana A. Azuma, Keita Nishizawa","doi":"10.1007/s11258-023-01363-9","DOIUrl":"https://doi.org/10.1007/s11258-023-01363-9","url":null,"abstract":"","PeriodicalId":20233,"journal":{"name":"Plant Ecology","volume":"9 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136105694","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":"Germination performance of alien and native species could shape community assembly of temperate grasslands under different temperature scenarios","authors":"Giacomo Trotta, Marco Vuerich, Elisa Petrussa, Fiona R. Hay, Silvia Assolari, Francesco Boscutti","doi":"10.1007/s11258-023-01365-7","DOIUrl":"https://doi.org/10.1007/s11258-023-01365-7","url":null,"abstract":"Abstract Rising temperatures due to climate change are expected to interplay with biological invasions, and may enhance the spread and growth of some alien species upon arrival in new areas. To successfully invade, a plant species needs to overcome multiple biological barriers. Among the crucial life stages, seed germination greatly contributes to the final species assembly of a plant community. Several studies have suggested that alien plant success is related to their high seed germination and longevity in the soil. Hence, our aim is to test if the germination potential of alien seeds present in the seed bank will be further enhanced by future warming in temperate dry grasslands, an ecosystem that is among those most prone to biological invasions. We designed a laboratory germination experiment at two temperatures (20 and 28 °C), to simulate an early or late heat wave in the growing season, using seeds from nine common grassland Asteraceae species, including native, archaeophyte and neophyte species. The test was performed on both single and mixed pools of these categories of species, using a full-factorial orthogonal design. The warmer germination temperature promoted neophyte success by increasing germination probability and germination speed, while negatively impacting these parameters in seeds of native species. The co-occurrence of native and archaeophyte seeds at the lower temperature limited the invasiveness of neophytes. These results provide important information on future management actions aimed at containing alien plant invasions, by improving our knowledge on the possible seed-bank response and interaction mechanisms of common species occurring in disturbed natural areas or restored sites. Graphical abstract Summary of the experimental results. The colour of the flowers represent the status, divided as native (blue), neophyte (red) and archaeophyte (green). Each flower symbol represents the species pool for each plant category (i.e. NA = Buphthalmum salicifolium , Carlina vulgaris , Centaurea scabiosa ; NE = Artemisia annua , Symphyotrichum novi-belgii, Senecio inaequidens ; AR = Centaurea cyanus , Cichorium intybus , Tripleurospermum inodorum ). The number of flowers represent the germination percentage of the various category assembly. In the columns are divided the various combination. From up to bottom the trend of germination percentage at 20 and 28 °C are shown.","PeriodicalId":20233,"journal":{"name":"Plant Ecology","volume":"48 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136157506","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}