A new species, Floresorchestia xueli Tong & Hou, sp. nov. is described from high altitude habitats of Yunnan, China. The species differs morphologically its congeners by left mandible lacinia mobilis having four teeth; coxal gills complexly lobed and convoluted; epimeral plates II–III without slits; telson with one slender facial spine two terminal spines on each lobe. Analysis DNA barcode sequences niche distinctiveness support recognition the species.

Two species of the family Talitridae Rafinesque, 1815 are described from English Point Beach, Mkomani, Mombasa, Kenya. One new Floresorchestia mkomani Bichang’a & Hou, sp. nov. is reported and Gazia gazi Lowry Springthorpe, 2019 redescribed. The characterized by five dentate lacinia mobilis on left mandible in male only four female, pereopod IV dactylus thickened proximally having a small protrusion towards mid its posterior margin, sexually dimorphic VII, presence vertical slits just...

ABSTRACT Microbial residue carbon (MRC) is an important source of soil organic (SOC) and plays a vital role in the accumulation retention SOC. Vegetation restoration effective strategy for restoring degraded lands. However, there are no studies on how MRC profile changes with vegetation restoration. We evaluated (using amino sugars) its contribution to SOC at different depths (0–20, 20–50, 50–100 cm) during severely eroded forest (CK), restored (ecological management), orchard (development...

Climate changes have substantial impacts on the geographic distribution of montane lakes and evolutionary dynamics cold-adapted species. Past climate cooling is hypothesized to promoted dispersal species via lakes, while future warming thought constrain their distributions. We test this hypothesis by using phylogeographic analysis niche modeling Holarctic crustacean Gammarus lacustris with global sampling comprised 567 sequenced individuals 3180 occurrence records. found that arose in Tian...

Abstract Aim The mid‐Miocene closure of the Tethys (Terminal Tethyan Event, TTE ) induced by collision African–Arabian plate with Eurasian is considered to be a major driver tropical marine biodiversity. We used intertidal talitrids Talorchestia sensu lato test hypothesis that can best explain current disjunct distribution this genus along Mediterranean‐East Atlantic and Indo‐West Pacific coastlines. Location Pacific. Methods sequenced four nuclear two mitochondrial loci for 87 samples...

Marine-terrestrial transition represents an important aspect of organismal evolution that requires numerous morphological and genetic innovations has been hypothesized to be caused by geological changes. We used talitrid crustaceans with marine-coastal-montane extant species at a global scale investigate the marine origination terrestrial adaptation. Using genomic data, we demonstrated ancestors repeatedly colonized montane habitats during Oligocene Miocene. Biological transitions were well...

Abstract Two noted academic specialists on China's economic geography are joined by a research assistant to examine the impact of current global crisis and recession trade with rest world. Relying statistics collected country's customs administration through first half 2009, authors identify analyze trends in imports exports (detailing countries origin destination) as well balance trade. They also develop present an input-output model order gain more precise understanding dependence (both...

The transmission spectra at the high-symmetry points of first Brillouin zone are measured for three face-centered-cubic colloidal crystals made silica spheres different submicrometer sizes. It is found that $U$ point dip exists not only an $s$ wave, but also a $p$ wave. Moreover, $W$ dips both and waves appear same wavelength. Our calculations confirm these correspond to lowest band gaps points. structures parameters determined by Kossel-rings analysis as well spectra.

Abstract Aim Climate change threatens freshwater faunal diversity. To prioritize areas for conservation, patterns in the distribution of species must be understood. We apply genetic analysis and models to identify amphipods around Xinjiang, China, project impact climate on endemic species. Location China. Methods A time‐calibrated tree containing 37 amphipod molecular samples from Xinjiang is built calculate phylogenetic diversity (PD), standardized effect sizes PD, weighted endemism, 100 ×...

Large-scale water and soil development in inland river basins arid areas has made changes landscape composition structure, threatening the ecological balance. In order to study trend of land use/cover pattern change its relationship with resources utilization Manas River Basin, land-use data five periods 1976, 1990, 2000, 2010 2015 were analyzed. The results showed that: (1) During 1976-2015, farmland construction continuously increased, forest grassland decreased, area initially reduced...

Volcano-tectonic processes have been viewed as primary drivers in the formation of present-day diversity. Volcanos associated with mountain uplifts drive allopatric speciation through vicariance and may impact surrounding areas like species pump or attractor. However, application these hypotheses to aquatic fauna has rarely tested explicitly. We Changbai Mountains (Mts), which are one most typical, active volcanic ranges Northeast (NE) Asia a long turbulent geological history. The Gammarus...

Dolomites of the Maokou Formation in central Sichuan were mainly developed middle-upper part Member 2 and lower 3 Formation, it could be divided into fine-to medium-grained calcareous dolomite, dolomite breccia according to petrology characteristic, latter two dominant. Through contrast geochemical characteristic between micritic limestone different types was characterized by low Fe content, high Mn content Sr relative micritc limestone. The had similar rare earth element (REE) distribution...

Vegetable greenhouses form a significant land utilisation pattern in China. A case study of the greenhouse soil quality changes and potential risk to humans under specific long-term environment, which includes high fertilization rates, temperatures humidity levels out-of-season cultivation, is presented this study. Soil profiles 72 representative solar with various planting years were sampled Shouguang City, birthplace winter The temporal distribution quantitatively evaluated through...

Arbuscular mycorrhizal fungi (AMF) community assembly has been investigated at regional and local scales, but was largely unknown micro-scale. The AMF soil aggregate level studied to promote the understanding of their distribution Surface associated with Eremochloa ophiuroides, Imperata cylindrica Paspalum notatum were sieved into three fractions: large macroaggregates (LMA, >2mm), small (SMA, 0.25–2mm) microaggregates (MA, <0.25mm). Illumina MiSeq sequencing revealed that communities...

Abstract The Eocene–Oligocene sea‐level fall has been viewed as a primary driver of biological succession. We used Anisogammaridae living in both marine and freshwater habitats to test the hypothesis that can explain marine–freshwater habitat shift Far East. obtained three mitochondrial two nuclear fragments for 138 samples representing 31 species, covering from latitudes 24 50°N. phylogenetic analyses revealed is monophyletic. Divergence‐time estimation ancestral range reconstruction...

Nitrogen fertilizer application is an important means to promote cotton production in saline-alkali land. A meta-analysis and regression analysis of 49 peer-reviewed studies were conducted using yield data (373 points), dry matter accumulation (114 water use efficiency (157 points) quantify the effect nitrogen on yield, accumulation, land China for different planting management practices growing environments. The results showed that significantly improved by 34.11%, 36.27%, 33.87%,...

Microbial residue carbon (MRC) is an important source of soil organic (SOC) formation and plays a vital role in the accumulation retention SOC. Vegetation restoration effective strategy to restore degraded lands. However, there are no studies on how MRC profile changes with vegetation restoration. We evaluated (using amino sugars) its contribution SOC different depths (0-20, 20-50, 50-100 cm) during severely eroded forest (CK), restored (as ecological management), orchard development...

Faced with the increasingly serious problem of water scarcity, developing precise irrigation strategies for crops in saline alkali land can effectively reduce negative effects low resource utilization. Using a model to simulate dynamic changes soil and salt environment root zone fragrant pear trees land, verifying them from production practice perspective comprehensive benefits as goal, optimize amount technology elements fruit trees, broaden evaluation decision-makers, have important...

Abstract Background and Aims Soil salinization in Xinjiang seriously restricts the growth of cotton. In recent years, smashing ridge tillage technology has been introduced into saline-alkali land management. However, effects different depths spring irrigation amounts on soil water salt cotton yield are not clear. Methods This study was conducted Tumushuk, Xinjiang, through a two-year field experiment (2021 2022), to analyze depth (F1: 40, F2: 60 F3: 80 cm) amount (W1: 2400, W2: 3000 W3: 3600...

Abstract The metal smelting industry (MSI) is one of the major carbon emission sectors in China, and it great significance to clarify mechanism truth effect production relocation (PR) MSI for reducing national emissions. Based on this thinking previous studies, we proposed two concepts relative (RCE) absolute (ACE) PR, then developed models explore impact PR (PRM) between 30 provincial administrative units China from 2007 2017. study demonstrates that PRM its ACE RCE divergent across...

The influences of the carbon/nitrogen ratio (C/N) on extracellular polymeric substances (EPS) activated sludge were investigated in four laboratory-scale sequencing batch reactors using threedimensional excitation-emission matrix (3D-EEM) with fluorescence regional integration (FRI).When C/N increased from 0 to 15, polysaccharide (PS), protein (PN), and nuclei acid (NA) contents tightly bound EPS (TB-EPS) increased, PS, PN, NA LB-EPS at obviously higher than 5, 10, 15.According FRI, had a...