Praxelis clematidea and Synedrella nodiflora at different invasive degrees from eastern Guangdong were measured, and further the stoichiometric characteristics, allocation of nitrogen and phosphorus and relationship with soil factors were measured. The results were as follows:(1)Available nitrogen(AN)content in soil declined with increasing of invasive degree for Praxelis clematidea, and the N, P, AN contents in soil declined with increasing of the invasive degree for Synedrella nodiflora. The content of N(0.696 - 2.701 g·kg^-1)in soil of invasive habitat for Praxelis clematidea was greater than that for Synedrella nodiflora (0.189-0.337 g·kg^-1), and the mean contents of C, P, available nitrogen(AN), and available phosphorus(AP)for Praxelis clematidea were less than those for Synedrella nodiflora.(2)For two plants with different invasive degrees, the N distribution for leaves was more than that for stems, and than roots. The P for Praxelis clematidea was distributed more to the stems, and for Synedrella nodiflora to the stems and leaves. The roots and stems of Praxelis clematidea, and leaves of Synedrella nodiflora with mild invasion had low C:P and N:P values than severe invasive degree, indicating two plants with mild invasion may have fast relative growth rate, and strong expansion potential. The N:P values in leaves for two plants were greater than those in roots and stems, implicating that roots and stems may have fast relative growth rate to increase the competitiveness of underground and above-ground.(3)The C:P and N:P values in roots and stems of Praxelis clematidea at different invasive degrees were less than those of Synedrella nodiflora, while the C:P and N:P values in leaves of Synedrella nodiflora were less than that of Praxelis clematidea, showing that although the roots and stems of Praxelis clematidea may have faster relative growth rate, Synedrella nodiflora had faster relative growth rate and stronger invasion potential than Praxelis clematidea.(4)The allocation of nitrogen and phosphorus, and relative growth rate of alien plant Praxelis clematidea were mainly affected by AN, AP contents in soil, that relative growth rate of organs increased with increasing of AN, AP contents in soil. The allocation of nitrogen and phosphorus, and relative growth rate of alien plant Synedrella nodiflora were mainly affected by N, P contents in soil, that relative growth rate of organs increased with increasing of N, P contents in soil. In conclusion, the roots and stems of two Asteraceae alien species have fast relative growth rate, and further to increase the competitiveness of underground and above-ground, but their possible effect on N:P stoichiometry requires further study. The results of this study have guiding significance for further understanding of resource allocation and utilization strategies and prediction of invasive potential of alien plants.]]> 2024/9/4 11:42:31 1*, CHEN Wen², PENG Yujiao³, CUI Xianliang⁴, LI Jiawei¹, HUANG Longjun¹]]> WANG Juhong^1*, CHEN Wen², PENG Yujiao³, CUI Xianliang⁴, LI Jiawei¹, HUANG Longjun¹ 12true Solidago canadensis originated from North America, has become a notorious alien invasive plant widely distributed in China, which cause huge agricultural economic losses and serious ecological environment problems. In order to understand the invasive process and driving factors of S. canadensis in Hubei Province, combining with investigation, previous studies, news and media reports to collect the distribution sites of S. canadensis, the historical distribution dynamics of S. canadensis was simulated and reconstructed by the ArcGIS in Hubei Province. Moreover, the spread dynamics and its driving factors were analyzed by MaxEnt model. The results were as follows:(1)S. canadensis showed discontinuous aggregation distribution in Hubei Province. The early “jumping” invasion gradually transformed into the “gradual” spread from east to northwest Hubei in recent years. The Wuhan, Xianning and the central area of Yichang displayed the most serious invasion.(2)Human activities were the main factors promoting the spread of S. canadensis. It could move far away through transport along the road and railway. In addition, the invasive distribution sites of S. canadensis were positively correlated with human activity intensity and road network density in Hubei Province.(3)The precipitation of the driest quarter(Bio_17), temperature seasonality(Bio_4), mean temperature of the wettest quarter(Bio_8), the pH value of the soil(t_pH ), the soil surface organic carbon content(t_oc)and the elevation(DEM)were key ecological factors affecting the propagation of S. canadensis. S. canadensis invaded easily with the t_pH value 4.0-7.5, the t_oc value 0.60%-1.12%, the Bio_4 value 880-920 and the Bio_8 value more than 24 ℃. Moreover, the potential distribution areas suitable for medium and high adaptive growth of S. canadensis could reach up to 75 200 km². Combined with historical spread dynamics and affecting factors of S. canadensis invasion, the adaptive areas and invasive distribution sites have tended to reduce from east to west in Hubei Province, and the human activities is a major factor resulted in its invasion and distribution. Moreover, natural factors directly limit its population size and potential distribution areas at the invasion site in Hubei Province. This research provides theoretical support for risk assessment, monitoring and early warning, and prevention and control technologies of S. canadensis.]]> 2024/9/4 11:42:31 *]]> JIAO Xinyu, LI Jiayi, YANG Qingyu, LONG Mei, ZENG Lingtian, LIU Zhixiong^* 11true 2024/9/4 11:42:31 1,2, XU Xue^1,2, LUO Ya^1,2*, YANG Shengtian^3,4, SHI Chunmao^1,2, ZHAO Shuang^1,2, LIAO Mengyao^1,2]]> LIU Mao^1,2, XU Xue^1,2, LUO Ya^1,2*, YANG Shengtian^3,4, SHI Chunmao^1,2, ZHAO Shuang^1,2, LIAO Mengyao^1,2 10true P<0.01). The understory biomass on shady slopes was lower than on sunny slopes and flats(P<0.01), with no significant difference between the latter two. In terms of different slopes, the understory biomass on steep slopes was higher than on flats, and flats had higher biomass than gentle slopes(P<0.01).(2)There was a significant interaction between slope position and slope aspect. The understory biomass was the highest on flats at the footslopes, flats on upper slopes, upper slopes and sunny slopes, and in valleys among all slope positions. There was no significant difference in understory biomass among shady slopes at the footslopes, sunny slopes at the footslopes, and shady slopes on upper slopes.(3)Ordinal logistic regression analysis of the current state of the study area showed that the probability of high or low understory biomass varied across different combinations of altitude, slope position, and slope aspect. Slope position, slope aspect, and slope had significant effects on the understory biomass. Among the three slope positions, the understory biomass was the highest in valleys and the lowest on footslopes. Among the three slopes, steep slopes had the highest understory biomass, while gentle slopes had the lowest. Shady slopes had the lowest understory biomass compared to other slope aspects.(4)Considering the realistic situation of human disturbance and forest grazing, steep slope areas in valleys had the highest probability of high understory biomass. This study can provide important references for accurately estimating the carrying capacity of understory for preys populations of tiger and leopard in Northeast China Tiger and Leopard National Park, thereby offering a scientific basis for the conservation and management of endangered tigers and leopards.]]> 2024/9/4 11:42:31 1,2, MOU Pu^2,3, WANG Tianming^2,3]]> WANG Le^1,2, MOU Pu^2,3, WANG Tianming^2,3 9true Alternanthera philoxeroides, a globally invasive species, poses a significant threat to local ecological enviroment due to its rapid spread and adaptability to diverse environmental conditions. Hainan Tropical Rainforest National Park, a critical area for biodiversity conservation, is increasingly at risk from the spread of A. philoxeroides. Therefore, accurately mapping its distribution and conducting dynamic monitoring are essential for effective management. This study utilized field survey data and employed the “biomod2” package in the R programming language to establish species distribution models, analyzed the spatial distribution of A. philoxeroides in the national park under current and future climate scenarios, as well as key environmental factors influencing its habitat suitability. The results were as follows:(1)The suitable areas for A. philoxeroides in the national park were categorized into low, moderate, high, and very high suitability zones. Under current condition, the highly suitable area covered approximately 180.75 km², concentrated primarily in the Yinggeling, Diaoluoshan, and Limushan areas.(2)Among the various factors influencing habitat suitability, climatic variables were found to have the most significant impact on the distribution of A. philoxeroides. Specifically, annual mean temperature range(bio7), normalized difference vegetation index(ndvi), maximum temperature in the warmest month(bio5), and precipitation of the warmest quarter(bio18)were identified as the key factors influencing habitat suitability.(3)The trends in the total habitat suitability area of A. philoxeroides under different future climate scenarios revealed two distinct patterns. In both scenarios, the centroid of suitable habitat shifted eastward. Under the high emission, extreme climate intensification scenario(SSP585), the expansion of suitable habitat was more rapid compared to the moderate sustainable development scenario(SSP126). In conclusion, the potential suitable habitat of A. philoxeroides under current climate condition is primarily located on the periphery of the national park; however, with the expected increase in global extreme climates and drastic environmental changes in the future, the risk of its spread within the national park is significantly heightened. Therefore, continuous dynamic monitoring of A. philoxeroides to track its invasion and spread trends is an important measure to effectively manage and prevent its large-scale spread in the national park.]]> 2025/12/4 12:25:39 1, YANG Zexiu², SONG Xiqiang^1,2, YANG Fan^1*]]> CHEN Zhiqi¹, YANG Zexiu², SONG Xiqiang^1,2, YANG Fan^1* 8true 2025/12/4 12:25:39 1,2, LI Ju², GENG Yupeng¹, LI Yangping^2*]]> HUANG Zhenyu^1,2, LI Ju², GENG Yupeng¹, LI Yangping^2* 7true 2025/12/4 12:25:40 1, ZHU Liangliang¹, YIN Haonan¹, WANG Li¹, LIU Yuli^2*]]> ZHANG Jinmeng¹, ZHU Liangliang¹, YIN Haonan¹, WANG Li¹, LIU Yuli^2* 6true Sphagneticola trilobata and its native congeneric one S. calendulacea subjected to homogeneous water stress were used to investigate effects of local abscisic acid(ABA)application on systematic resistance and growth performance within clonal network when stolon between interconnected ramets was severed or retained intact. The results were as follows:(1)With clonal integration, local ABA application significantly alleviated foliar oxidative stress of both S. trilobata and S. calendulacea, increased foliar antioxidant enzyme activity and osmotic regulatory substance content.(2)Compared to S. calendulacea, local ABA application significantly increased content of proline(Pro)and soluble protein contents in third ramets of S. trilobata and superoxide dismutase(SOD)activity in second ramets of S. calendulacea compared to S. trilobata.(3)Compared to S. calendulacea, local ABA application significantly increased the total biomass of S. trilobata, but had no significant effect on the root-shoot ratio of S. trilobata. In conclusion, alien invasive plant S. trilobata may benefit more from clonal integration of stress signal induced by local ABA application than its congeneric native one S. calendulacea. In addition, it is suggested that greater biomass allocation to aboveground may be helpful for successful invasion of S. trilobata.]]> 2025/12/4 12:25:40 *]]> WANG Xuemei, TIAN Jiao, QIU Chenggang, JIANG Jie, YANG Hanjun, CHEN Changfan, DENG Jie, DAN Yi, CHEN Jinsong^* 5true Dermatocarpon moulinsii + Dermatocarpon miniatum var. imbricatum + Dermatocarpon arnoldianum), Association 2(Umbilicaria virginis + Physcia caesia), Association 3(Xanthoparmelia somloensis + Xanthoparmelia wyomingica), Association 4(Umbilicaria aprina + Phaeophyscia ciliata), Association 5(Physcia phaea + Melanelia stygia).(3)α diversity index showed that Association 3 had the highest diversity, while Association 5 had the lowest diversity; β diversity index between associations was relatively low.(4)The CCA ordination result showed that environmental factors such as altitude, slope, human disturbance degree, and rock size had a significant impact on the distribution of saxicolous macrolichen species, while air relative humidity and the acidity and pH of rocks had no significant impact on lichens; the aspect and light intensity were negatively correlated with the distribution of saxicolous macrolichens. In conclusion, the structure of the saxicolous macrolichen community in the protected area is complex, the distribution of lichen species is influenced by both natural and human factors, and there is no significant difference in saxicolous macrolichen species between different altitudes.]]> 2025/12/4 0:00:00 *]]> TOKSUN Dolathan, MAMATALI Rehanguli, YONG Haiying, TUMUR Anwar^* 4true Xylaria, Marasmius, Gymnopus, Marasmiellus, Russula, Ophiocordyceps, Amanita, Microporus, Polyporus, Dacrymyces, Cordyceps, ect.(3)The floristic geographic elements of the macrofungi genus level in the study area could be divided into 10 categories, mainly cosmopolitan components(61.96%), followed by pantropical components(23.31%). This study finds that the macrofungi resources in Cenwanglaoshan Reserve are abundant, and there are many species that can be further developed and utilized. This study provides a scientific basis for the conservation and sustainable utilization of macrofungi resources in this area, and provides basic data for the expansion of medicinal sources and the rational development of macrofungi crude drug resources.]]> 2025/12/4 12:25:40 1, LIU Jinrong^1,2, LIU Yan¹, MOU Guangfu^1*]]> ZHANG Yancheng¹, LIU Jinrong^1,2, LIU Yan¹, MOU Guangfu^1* 3true Xylaria, Marasmius, Gymnopus, Marasmiellus, Russula, Ophiocordyceps, Amanita, Microporus, Polyporus, Dacrymyces, Cordyceps, ect.(3)The floristic geographic elements of the macrofungi genus level in the study area could be divided into 10 categories, mainly cosmopolitan components(61.96%), followed by pantropical components(23.31%). This study finds that the macrofungi resources in Cenwanglaoshan Reserve are abundant, and there are many species that can be further developed and utilized. This study provides a scientific basis for the conservation and sustainable utilization of macrofungi resources in this area, and provides basic data for the expansion of medicinal sources and the rational development of macrofungi crude drug resources.]]> 2025/12/4 12:25:40 1, LIU Jinrong^1,2, LIU Yan¹, MOU Guangfu^1*]]> ZHANG Yancheng¹, LIU Jinrong^1,2, LIU Yan¹, MOU Guangfu^1* 2true 2025/12/4 12:25:40 1,2, CHEN Yuanyang^1,3, ZENG Xiaoling^1,2, CHEN Shujie^1,2, YANG Yana^1,4, LIN Fangmei^1,2,5, JIN Yanqiang¹, LIU Chenggang^1*]]> JIANG Chuan^1,2, CHEN Yuanyang^1,3, ZENG Xiaoling^1,2, CHEN Shujie^1,2, YANG Yana^1,4, LIN Fangmei^1,2,5, JIN Yanqiang¹, LIU Chenggang^1* 1true