Biological Invasions最新文献

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Functional dissimilarity correlates to the co-occurrence patterns of native and non-native species 功能差异与本地物种和非本地物种的共存模式有关
IF 2.9 3区 环境科学与生态学
Biological Invasions Pub Date : 2024-05-30 DOI: 10.1007/s10530-024-03321-6
Amanda Cantarute Rodrigues, Julien Cucherousset, Eduardo Ribeiro Cunha, Natália Carneiro Lacerda dos Santos, Luiz Carlos Gomes
{"title":"Functional dissimilarity correlates to the co-occurrence patterns of native and non-native species","authors":"Amanda Cantarute Rodrigues, Julien Cucherousset, Eduardo Ribeiro Cunha, Natália Carneiro Lacerda dos Santos, Luiz Carlos Gomes","doi":"10.1007/s10530-024-03321-6","DOIUrl":"https://doi.org/10.1007/s10530-024-03321-6","url":null,"abstract":"<p>Many theories have been created to explain the mechanisms driving species coexistence. They are mainly based on biotic interactions and abiotic factors, which are being constantly affected by human activities. In invaded communities, novel ecological interactions among organisms are created and native and non-native species have to coexist. This coexistence can be supported by different interactions (both positive and negative) and, in some cases, can be followed by negative impacts on the spatial distribution of native species. We aimed to assess the role of the functional differences and species status influencing co-occurrence patterns between native and non-native species at the Upper Paraná River floodplain, Southern Brazil. We estimated the co-occurrence between pairs of native and non-native species and their functional dissimilarity using morphological traits. We found a positive relationship between co-occurrence and functional dissimilarity between species: more similar native and non-native species tended to co-occur less. The co-occurrence was also related to species status: it was higher between pairs of native species than between pairs of native and non-native species. Niche differentiation may play an important role in driving the observed co-occurrence patterns at small spatial scales. However, this can lead to a limitation on the space use of species and modifications in the taxonomic and functional diversity of the native community. Although we recognize that species coexistence may be driven by several factors, we show here that the co-occurrence patterns of native and non-native species were affected by their functional dissimilarity.</p>","PeriodicalId":9202,"journal":{"name":"Biological Invasions","volume":"83 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141191812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Predicting distribution and establishment of two invasive alien Daphnia species in diverse lakes in New Zealand-Aotearoa 预测两种外来入侵水蚤物种在新西兰-奥特亚罗瓦不同湖泊中的分布和定居情况
IF 2.9 3区 环境科学与生态学
Biological Invasions Pub Date : 2024-05-29 DOI: 10.1007/s10530-024-03342-1
Carolyn W. Burns, Andrew Rees, Susanna A. Wood
{"title":"Predicting distribution and establishment of two invasive alien Daphnia species in diverse lakes in New Zealand-Aotearoa","authors":"Carolyn W. Burns, Andrew Rees, Susanna A. Wood","doi":"10.1007/s10530-024-03342-1","DOIUrl":"https://doi.org/10.1007/s10530-024-03342-1","url":null,"abstract":"<p>The freshwater zooplankton of New Zealand-Aotearoa are species-poor with only two indigenous <i>Daphnia</i> species: <i>D. thomsoni,</i> and <i>D. tewaipounamu</i>. Over the last two decades, two species of invasive non-indigenous <i>Daphnia</i>, <i>D. pulicaria/pulex</i> and <i>D. galeata,</i> have become well established in many lakes in New Zealand-Aotearoa and their distribution appears to be rapidly increasing. We report the current distribution of these two invasive species in approximately 300 lakes throughout New Zealand-Aotearoa and test the hypothesis that the distribution and establishment of these invaders is more closely related to human access to a lake than to any environmental attributes of a lake’s water or biota and consider potential implications of our findings for lake management. Boosted regression tree analysis identified total nitrogen and distance from the coast (<i>D. pulicaria</i>) and annual lake temperature (<i>D. galeata</i>) as key variables explaining current distributions. Inclusion of spatial autocorrelation overwhelmed other explanatory variables, highlighting the greater likelihood of spread from known source locations. Proximity to a road was an important predictor for <i>D. pulicaria</i>, and when tested separately both invasive <i>Daphnia</i> occurred significantly more often in lakes within 200 m of a road. Critically, <i>D. galeata</i>’s realised niche completely envelopes <i>D. thomsoni</i>’s, which could force the native species to become extinct through competitive exclusion. These results suggest that the spread of <i>D. pulicaria</i> and <i>D. galeata</i> to lakes where they do not yet occur is unlikely to be prevented unless public access to these waterways is denied or strictly controlled.</p>","PeriodicalId":9202,"journal":{"name":"Biological Invasions","volume":"51 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Genetic and phenotypic differentiation in functional traits of Iris pseudacorus L. in native and introduced Mediterranean climate ranges 鸢尾(Iris pseudacorus L.)在原生和引进的地中海气候范围内功能特征的遗传和表型差异
IF 2.9 3区 环境科学与生态学
Biological Invasions Pub Date : 2024-05-29 DOI: 10.1007/s10530-024-03350-1
B. Gallego-Tévar, B. J. Grewell, J. F. Gaskin, J. M. Castillo
{"title":"Genetic and phenotypic differentiation in functional traits of Iris pseudacorus L. in native and introduced Mediterranean climate ranges","authors":"B. Gallego-Tévar, B. J. Grewell, J. F. Gaskin, J. M. Castillo","doi":"10.1007/s10530-024-03350-1","DOIUrl":"https://doi.org/10.1007/s10530-024-03350-1","url":null,"abstract":"<p>Intraspecific variation in functional traits between native and introduced plant species may underlie resilience and invasiveness of introduced species. We explored if observed phenotypic variation of <i>Iris pseudacorus</i> L. between populations in the native vs. introduced ranges results from genetic differentiation and/or phenotypic plasticity. Seeds were collected from populations along estuarine stress gradients within populations in both Guadalquivir Estuary (Andalusia, Spain) and San Francisco Bay-Delta Estuary (California, USA). Genetic analysis was performed on leaf tissue from plants in each seed donor population. Germinants (n = 48: 6 plants × 4 populations × 2 ranges) were grown for 12 months in a common garden experiment (CGE). We then evaluated 25 traits including growth, biomass allocation, morphological and biochemical responses. Geographic range explained relative intraspecific trait variation segregating native from introduced phenotypes. Native plants had lower specific leaf area (− 34%) and carbohydrate concentrations in rhizomes (− 63%) than introduced plants, providing evidence of genetic differentiation. Higher genetic diversity and 27% higher phenotypic variation (CGE) of native vs. introduced plants indicated longer-term adaptive processes in the native range. Genetic distance of introduced populations (field) increased along with their phenotypic distance (CGE), suggesting rapid genetic differentiation. Phenotypic plasticity also explained some observed inter-range differences under field conditions not expressed by plants in the CGE. Management of the introduced <i>I. pseudacorus</i> populations should be established urgently since they represent novel genotypes with key functional traits that can support invasiveness through increased competitive ability and physiological stress tolerances to sea level rise.</p>","PeriodicalId":9202,"journal":{"name":"Biological Invasions","volume":"29 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Urban colonization of invasive species on islands: Mus musculus and Rattus rattus genetics of establishment on Cozumel Island 入侵物种在岛屿上的城市定殖:科苏梅尔岛上的麝香猫和鼠啮齿目黑齿鼠的定居遗传学
IF 2.9 3区 环境科学与生态学
Biological Invasions Pub Date : 2024-05-29 DOI: 10.1007/s10530-024-03343-0
Gabriela Borja-Martínez, Ella Vázquez-Domínguez
{"title":"Urban colonization of invasive species on islands: Mus musculus and Rattus rattus genetics of establishment on Cozumel Island","authors":"Gabriela Borja-Martínez, Ella Vázquez-Domínguez","doi":"10.1007/s10530-024-03343-0","DOIUrl":"https://doi.org/10.1007/s10530-024-03343-0","url":null,"abstract":"<p>Humans and wildlife experience complex interactions in urban ecosystems, favoring the presence of commensal species, among which invasive species are particularly successful. Rodents are the main vertebrate group introduced to oceanic islands, where the invasion process and dispersal patterns strongly influence their evolutionary and genetic patterns. We evaluated the house mouse <i>Mus musculus</i> and the black rat <i>Rattus rattus</i> on Cozumel Island, Mexico. We assessed genetic diversity and structure, connectivity, gene flow, relatedness and bottleneck signals based on microsatellite loci. Our genetic findings suggest that introduction of individuals of different geographic sources to the island promotes high allelic diversity and the effective establishment of migrants. We identified a clear genetic structure and low connectivity for the two species, tightly linked with anthropogenic and urban features. Notably, we found that the genetic structure of the house mouse sampled within the city of San Miguel Cozumel is associated with the historical human population growth pulses accompanying the urbanization of the city. At the fine-scale genetic level, the main urban drivers of connectivity of the house mouse were both the impervious land surfaces, i.e. the urban landscape, and the informal commerce across the city (a proxy of resources availability). Chances of a secondary invasion to natural environments have been relatively low, which is crucial for the endemic taxa of the island. Nonetheless, improving urban planning to regulate future expansions of San Miguel Cozumel is of the outmost importance to prevent these invasive species to disperse further.</p>","PeriodicalId":9202,"journal":{"name":"Biological Invasions","volume":"19 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Assessing invasion risks using EICAT-based expert elicitation: application to a conservation translocation 利用基于 EICAT 的专家启发法评估入侵风险:应用于保护性迁移
IF 2.9 3区 环境科学与生态学
Biological Invasions Pub Date : 2024-05-29 DOI: 10.1007/s10530-024-03341-2
Maude Vernet, Amanda E. Trask, Caitlin E. Andrews, John G. Ewen, Suzanne Medina, Axel Moehrenschlager, Stefano Canessa
{"title":"Assessing invasion risks using EICAT-based expert elicitation: application to a conservation translocation","authors":"Maude Vernet, Amanda E. Trask, Caitlin E. Andrews, John G. Ewen, Suzanne Medina, Axel Moehrenschlager, Stefano Canessa","doi":"10.1007/s10530-024-03341-2","DOIUrl":"https://doi.org/10.1007/s10530-024-03341-2","url":null,"abstract":"<p>Conservation translocations are widely used to recover threatened species, but can pose risks to recipient ecosystems, particularly in the case of conservation introductions. Because of limited data and uncertainty, risk assessments for such projects often rely on extrapolated evidence and expert opinion, further complicating decision making. The Environmental Impact Classification for Alien Taxa (EICAT) serves to classify the realised impacts of invasive species. We developed a protocol combining EICAT and formal expert elicitation to predict these impacts. We applied our protocol to the extinct-in-the-wild sihek (Guam kingfisher; <i>Todiramphus cinnamominus</i>), for which introduction outside the known historical range is being considered. We elicited from multiple experts probability estimates of impact levels across four impact mechanisms and five candidate release sites. We aggregated estimates using simulation-based and Bayesian approaches, with and without accounting for expert confidence. Experts generally agreed that sihek introduction might impact the recipient ecosystem through predation, competition, and disease, although they disagreed about the likely impact levels. Releases to Palmyra Atoll were considered to pose the lowest risk across candidate sites, so this site was selected for further detailed ecological assessments and risk mitigation efforts. EICAT, with its standardized impact mechanisms and definitions, helped reduce the linguistic uncertainty and subjectivity common to expert-based assessments. Expressing judgments as probabilities allowed us to evaluate uncertainty transparently and to assess the weight of expert confidence on the overall risk estimation. Formal quantitative elicitation and aggregation then allowed a transparent evaluation of results, facilitating communication with stakeholders and decision-makers.</p>","PeriodicalId":9202,"journal":{"name":"Biological Invasions","volume":"47 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The ManhattAnt: identification, distribution, and colony structure of a new pest in New York City, Lasius emarginatus 曼哈顿蚂蚁:纽约市一种新害虫 Lasius emarginatus 的识别、分布和群落结构
IF 2.9 3区 环境科学与生态学
Biological Invasions Pub Date : 2024-05-28 DOI: 10.1007/s10530-024-03344-z
Samantha M. Kennett, Bernard Seifert, Robert R. Dunn, Todd W. Pierson, Clint A. Penick
{"title":"The ManhattAnt: identification, distribution, and colony structure of a new pest in New York City, Lasius emarginatus","authors":"Samantha M. Kennett, Bernard Seifert, Robert R. Dunn, Todd W. Pierson, Clint A. Penick","doi":"10.1007/s10530-024-03344-z","DOIUrl":"https://doi.org/10.1007/s10530-024-03344-z","url":null,"abstract":"<p>An unidentified ant species was discovered in the heart of New York City in 2011, which garnered national headlines and created the memorable nickname “ManhattAnt.” New York City is one of the oldest and largest cities in North America and has been the site of introduction for some of North America’s most damaging invasive pests. Nevertheless, there has been little follow up research on the ManhattAnt since its discovery, and it has yet to be formally identified. Here we use genetic and morphological approaches to confirm the identity of the ManhattAnt and characterize its introduced range and colony structure. Results from genetic analyses placed the ManhattAnt within the <i>Lasius emarginatus</i> species complex, and morphological comparisons ruled out closely related species to identify the ManhattAnt as the European ant <i>L. emarginatus</i> with 93–99% certainty depending on the nest sample. Since its initial discovery in the region, the ManhattAnt has become one of the most common ants in New York City and has spread at a rate of 2 km/yr into New Jersey and onto Long Island. Based on the climate it inhabits within its native range, <i>L. emarginatus</i> could expand to cover much of the eastern United states from Massachusetts to Georgia. Although many successful invasive ants display supercoloniality with little aggression between neighboring nests, we found no evidence that <i>L. emarginatus</i> colonies in New York City are supercolonial. Continued monitoring of <i>L. emarginatus</i> is warranted, as it has been increasingly reported as an indoor pest and is known to form mutualisms with honeydew producing pests of street trees.</p>","PeriodicalId":9202,"journal":{"name":"Biological Invasions","volume":"29 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Genetic detection and population structure of a non-native hybridogenic Poeciliopsis species in the Santa Cruz River of Arizona, USA 美国亚利桑那州圣克鲁斯河非本地杂交种 Poeciliopsis 的基因检测和种群结构
IF 2.9 3区 环境科学与生态学
Biological Invasions Pub Date : 2024-05-27 DOI: 10.1007/s10530-024-03333-2
Steven M. Mussmann, Doug Duncan, Kent R. Mosher, William T. Stewart, Peter N. Reinthal, Wade D. Wilson
{"title":"Genetic detection and population structure of a non-native hybridogenic Poeciliopsis species in the Santa Cruz River of Arizona, USA","authors":"Steven M. Mussmann, Doug Duncan, Kent R. Mosher, William T. Stewart, Peter N. Reinthal, Wade D. Wilson","doi":"10.1007/s10530-024-03333-2","DOIUrl":"https://doi.org/10.1007/s10530-024-03333-2","url":null,"abstract":"<p>The Gila topminnow (<i>Poeciliopsis occidentalis</i>) has undergone population recovery actions since being extirpated from much of its historical range in the United States of America (USA) prior to the 1970s. However, it returned to the Santa Cruz River in 2015 independently of these actions, which prompted concerns that a non-native <i>Poeciliopsis</i> lineage had been introduced from Mexico. Some Gila topminnow populations in Mexico are sympatric with <i>P. monacha-occidentalis</i>, which is an exclusively female taxon that originated from historical hybridization between <i>P. occidentalis</i> and headwater livebearer (<i>P. monacha</i>). This hybrid taxon reproduces through hybridogenesis, which is a unique mode of sexual reproduction in which half of one parent’s genome is inherited without recombination. This unique property was leveraged to identify hybridogens among 868 individuals from Arizona, USA using common genetic markers (i.e., nuclear microsatellite and mitochondrial sequence data). We described methods for <i>P. monacha-occidentalis</i> identification and conducted population genetic analysis of Santa Cruz River <i>P. occidentalis</i> populations to infer their possible origins. We concluded that human-mediated introduction was the most probable explanation for the current Santa Cruz River <i>P. occidentalis</i> and <i>P. monacha-occidentalis</i> presence. Contemporary diversity may be explained by four introduction events. Population ancestry estimates indicate that <i>P. monacha-occidentalis</i> may have hybridized with two <i>P. occidentalis</i> lineages in the Santa Cruz River. Variable prevalence of <i>P. monacha-occidentalis</i> was noted in two river sections, but the conservation implications of this hybridization are unclear. Public education, targeted removal of <i>P. monacha-occidentalis</i>, and genetic monitoring could mitigate future introductions and potential negative impacts.</p>","PeriodicalId":9202,"journal":{"name":"Biological Invasions","volume":"6 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Suppressing the invasive common milkweed (Asclepias syriaca L.) saves soil moisture reserves 抑制外来入侵的普通乳草(Asclepias syriaca L.)可节省土壤水分储备
IF 2.9 3区 环境科学与生态学
Biological Invasions Pub Date : 2024-05-27 DOI: 10.1007/s10530-024-03346-x
Csaba Tölgyesi, Viktória Tóth, Alida Anna Hábenczyus, Kata Frei, Benedek Tóth, László Erdős, Péter Török, Zoltán Bátori
{"title":"Suppressing the invasive common milkweed (Asclepias syriaca L.) saves soil moisture reserves","authors":"Csaba Tölgyesi, Viktória Tóth, Alida Anna Hábenczyus, Kata Frei, Benedek Tóth, László Erdős, Péter Török, Zoltán Bátori","doi":"10.1007/s10530-024-03346-x","DOIUrl":"https://doi.org/10.1007/s10530-024-03346-x","url":null,"abstract":"<p>Common milkweed (<i>Asclepias syriaca</i> L.) is a widespread invasive alien forb in dry sandy habitats of Central Europe. It adversely affects native plant and animal communities, but its ecosystem-level effects, particularly on hydrology, are little known. Since milkweed has an extensive, deep root system and large, broad leaves, we assumed a negative effect on the soil moisture content of the hosting ecosystem. Following the before-after control-impact protocol, we first compared the soil moisture content of the top 120 cm of the soil under seven milkweed stands to that of non-invaded reference sites. We then treated half of the stands by mechanically removing all aboveground milkweed biomass and repeated the comparative soil moisture measurements. We found that milkweed stands had significantly drier soils than reference grasslands during the growing season, but the soil under milkweed stands recharged to the level of the references in autumn and winter. However, the amount of moisture needed for this recharge was lost from deeper percolation to groundwater. Milkweed treatment prevented the depletion of moisture during the growing season, saving 21.6 l m<sup>−2</sup> of water on average. Treatment did not affect non-milkweed plant biomass, thus, moisture patterns could fully be attributed to the milkweed stands. Our results reinforce the importance of milkweed suppression in invaded grasslands, as, besides enabling the recovery of the native grassland ecosystem, it promotes groundwater recharge, which is particularly important in the dry regions of Central Europe, currently facing severe aridification due to climate change and unfavourable land use trends.</p>","PeriodicalId":9202,"journal":{"name":"Biological Invasions","volume":"34 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The role and synthesis mechanism of anthocyanins in Sphagneticola trilobata stems under low temperature 低温条件下三叶蓟马茎中花青素的作用及合成机制
IF 2.9 3区 环境科学与生态学
Biological Invasions Pub Date : 2024-05-27 DOI: 10.1007/s10530-024-03348-9
Minling Cai, Jundong Huang, Minghao Chen, Lihua Chen, Xiaowen Zhang, Manting Chen, Jirong Wu, Yanru Pan, Changlian Peng
{"title":"The role and synthesis mechanism of anthocyanins in Sphagneticola trilobata stems under low temperature","authors":"Minling Cai, Jundong Huang, Minghao Chen, Lihua Chen, Xiaowen Zhang, Manting Chen, Jirong Wu, Yanru Pan, Changlian Peng","doi":"10.1007/s10530-024-03348-9","DOIUrl":"https://doi.org/10.1007/s10530-024-03348-9","url":null,"abstract":"<p><i>Sphagneticola trilobata</i>, originally from the tropical regions of the Americas, has successfully invaded the subtropical regions of southern China and displays a tendency to spread towards colder northern regions. The accumulation of anthocyanins in stems under low temperature conditions exhibits strong cold tolerance, and therefore may be one mechanism supporting the northward spread of the species. However, the role and synthesis mechanism of anthocyanins in the stems of <i>S. trilobata</i> when confronted with low temperature stress are still unclear. Field experiments have shown that compared to in summer, the stems of <i>S. trilobata</i> significantly accumulated anthocyanins to cope with winter. Further short-term low-temperature treatments (0 °C) were conducted on red and green stems of <i>S. trilobata</i>, and the results showed that the red stems exhibited lower levels of reactive oxygen species, membrane damage, and chlorophyll fluorescence changes compared to the green stems. In an indoor low-temperature control experiment, it was observed that <i>S. trilobata</i> exhibited significant accumulation of callus in the periderm of its stems compared to <i>S. calendulacea</i>, which subsequently resulted in increased levels of sucrose, glucose, and fructose contents. Furthermore, there was a significantly induced higher levels of abscisic acid and cytokinin in <i>S. trilobata</i> stems under low temperatures. Under the joint regulation of these carbohydrates and hormones, the key structural genes associated with anthocyanins synthesis pathway in <i>S. trilobata</i> stems were more strongly induced compared to <i>S. calendulacea</i>. The upregulation of <i>CHS</i>, <i>CHI</i>, <i>F3H</i>, and <i>DFR</i> gene expression levels in <i>S. trilobata</i> was higher than that of native species, which directly leads to the accumulation of more anthocyanins in the epidermis of the stem of <i>S. trilobata</i>, thereby reducing the degree of oxidative stress and maintaining normal growth under low temperature. In summary, anthocyanins play an important light filtering role in the response of <i>S. trilobatas</i> stem to low temperature stress, which is one of the important mechanisms for its successful invasion into southern China. In the context of global climate change, we need to increase our vigilance against further invasion of <i>S. trilobata</i> into colder inland regions such as temperate regions. This research holds significant theoretical and practical implications for the prevention and control of <i>S. trilobata</i> invasion.</p>","PeriodicalId":9202,"journal":{"name":"Biological Invasions","volume":"72 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141173246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The influence of shelter on abundance of the invasive dandelion, Taraxacum officinale, at its northern range limit 庇护所对入侵蒲公英(Taraxacum officinale)在其北部分布界限的丰度的影响
IF 2.9 3区 环境科学与生态学
Biological Invasions Pub Date : 2024-05-18 DOI: 10.1007/s10530-024-03339-w
Francine D. B. Da Silva, Peter M. Kotanen
{"title":"The influence of shelter on abundance of the invasive dandelion, Taraxacum officinale, at its northern range limit","authors":"Francine D. B. Da Silva, Peter M. Kotanen","doi":"10.1007/s10530-024-03339-w","DOIUrl":"https://doi.org/10.1007/s10530-024-03339-w","url":null,"abstract":"<p>Invasive species represent a threat to many ecosystems but are nearly absent from arctic and subarctic Canada. The treeline town of Churchill, Manitoba, has an unusually high number of invasive species due to the presence of a grain port and railway, but few of these species have spread to the surrounding tundra; for instance, common dandelion (<i>Taraxacum officinale</i>) currently is restricted primarily to town, in contrast with its native congener, <i>Taraxacum lacerum</i>. To investigate whether the distribution of <i>T. officinale</i> is affected by the tendency of buildings to create warm, sheltered microenvironments, we surveyed the abundance of both dandelion species relative to existing structures in town. We established transects extending up to 5 m from each side of 23 buildings, and recorded the number of plants in 50 cm × 50 cm quadrats along each transect. We found that <i>T. officinale</i> performed better on the south sides of buildings, that flowering decreased away from buildings, and that these effects were stronger for <i>T. officinale</i> than the native <i>T. lacerum</i>. Soil temperatures were warmer on the south rather than on the north-facing sides, providing a possible explanation. Our results show that the distribution of <i>T. officinale</i> currently is more influenced by human-created microclimate compared to the abundance of its native relative. However, <i>T. officinale</i> may spread beyond these refuges as the climate continues to warm.</p>","PeriodicalId":9202,"journal":{"name":"Biological Invasions","volume":"66 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141061218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
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