新疆微孢衣属(Acarospora)地衣的中国新记录种(英文)

结合相关的研究资料,对新疆西部部分山区实地采集的地衣标本进行初步整理、分类和鉴定,结果发现了微孢衣属(Acarospora)的3个中国新记录种: Acarospora glaucocarpa,Acarospora peliscypha,Acarospora veronensis。

新疆微孢衣属地衣新记录种

报道了采自新疆布尔津县五彩滩的微孢衣属(Acarospora A.Massal.)地衣两个新记录种,即:中国新记录种美国微孢衣(Acarospora americana H.Magn.)和新疆新记录种翡翠微孢衣(Acarospora smaragdula(Wahlenb.)A.Massal.),详细描述了这两种地衣的形态特征、解剖特征及生境。

新疆东天山微孢衣属地衣2个中国新记录种

对采自新疆东天山米泉林场的地衣鉴定分析,发现2个中国新记录种,即散点微孢衣(Acarospora dispersa H.Magn.)和暗灰微孢衣(A.obnubila H.Magn.)。根据研究标本描述了2个新记录种的形态解剖、化学特征和生境,并提供了相关形态学及解剖学彩色图片。标本保存于新疆大学西北干旱地衣研究中心的标本室(XJUNALH)。

中国泡状微孢衣及相关种类的初步研究

采用传统分类学及分子生物学技术,鉴定并报道了采自中国甘肃、新疆、西藏的微孢衣属中国新记录种——泡状微孢衣(Acarospora bullata Anzi),并对该属部分种类[节微孢衣(A. nodulosa (Dufour) Hue)、垫微孢衣(A. pulvinata H. Magn.)]进行了分类及系统发育学研究,提供了这3个物种的详细描述、形态结构图以及ITS序列。本研究可为《中国地衣志——微孢衣科》的编写提供科学数据。

Wind farm potential is higher in prime habitat for uncommon soil crust lichens

Introduction:Biotic soil crust communities contribute valuable ecosystem services and biodiversity in steppe ecosystems.The uncommon crust lichens Acarospora schleicheri,Fuscopannaria cyanolepra,Rhizocarpon diploschistidina,and Texosporium sancti-jacobi are associated with fine-textured soils along rivers of the Columbia Basin.A.schleicheri and R.diploschistidina indicate late-successional habitat and may serve as indicators for other rare or cryptic species associated with similar habitats.Much of the most favorable habitat for these species has been lost to urban and agricultural development.We sought to overlay favorable habitats with wind farm development potential to assess whether these species are likely to be affected by renewable energy development.Methods:We overlaid habitat models for four lichen species on land use and wind farm potential maps.Using a sample of 5,000 points,we determined whether there were differences in probability of occurrence among wind farm potential classes within developed and natural lands using Multi-Response Permutation Procedures.Sites with modeled probability of occurrence greater than 60%were considered“favorable”habitats;for these,aχ2 test allowed us to determine whether favorable habitats were associated with wind farm potential categories.Results:Sites that are developed for agriculture or have higher wind farm potential coincide with more favorable habitats for uncommon soil crust lichens.Of the favorable habitats for the four focal lichens,28–42%are already affected by development or agriculture;5–14%of favorable habitats remain in natural vegetation and are considered sites with fair or good potential for wind farms.Conclusions:Development of wind energy has the potential to negatively impact uncommon soil crust lichen species because favorable sites coincide with especially good habitat for these species.However,as these renewable energy resources are developed,we have the opportunity to ensure that valuable soil crust functions and diversity are maintained by surveying before construction and planning new facilities such that disturbance to existing habitat is minimized.

基于MaxEnt模型的新疆微孢衣属地衣生境适宜性评价

结合新疆微孢衣属(Acarospora)地衣的180处分布点数据和22个环境变量,基于MaxEnt模型与ArcGIS方法,预测微孢衣属地衣在新疆的潜在分布,评价其生境适宜性,分析影响其分布的环境变量。微孢衣属地衣在新疆的生境适宜等级可划分为4个等级,高、次适宜生境区主要集中于新疆北部、中部及西南部的主要山脉所在区域和准噶尔盆地的部分区域,低适宜生境区连续分布于高、次适宜生境区的边缘,非适宜生境区占据新疆南部和东南部的广袤区域;年降雨量(bio12)、最干季度降水量(bio17)、最冷季度降水量(bio19)是影响微孢衣属地衣分布的关键环境变量,对MaxEnt模型的综合贡献率分别为36.2%、15.0%和11.6%。