Results 61 to 70 of about 74,577 (229)

Spatial distribution of total halogenated organic compounds (TX), adsorbable organic halogens (AOX), and heavy metals in wetland soil irrigated with pulp and paper wastewater

Chemical Speciation & Bioavailability, 2017
Long-term irrigation using wastewater from paper industry may cause seriously problems to the receiving soil. This work surveyed and monitored the soil quality of a wastewater irrigation wetland system in Yancheng City, Jiangsu Province in China in 2014 ...
Liqiang Cui, Tianming Chen, Cheng Ding, Zhaoxia Li, Jinlong Yan, Yang Liu, Xian Niu, Aihui Chen, Wenjun Yang   +8 more
doaj   +1 more source

Speciation environments and centres of diversity in southern Africa. I. Conceptual framework

Bothalia: African Biodiversity & Conservation, 1982
A knowledge of the nature and distribution of the environments where speciation (micro-evolution) is or has been rapid would help explain plant distributions and give insight into the mechanisms of plant evolution.
E. R. Robinson, G. E. Gibbs Russell
doaj   +1 more source

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

The latitudinal variation in amphibian speciation rates revisited

Communications Biology
Speciation can increase regional species richness, however, our knowledge of how and why speciation rates vary across space is still incomplete. Using comprehensive information on species distributions and their phylogenetic relationships, we describe ...
Adrián García-Rodríguez, Fabricio Villalobos, Julián A. Velasco, Franz Essl, Gabriel C. Costa   +4 more
doaj   +1 more source

Changes in phosphorus fractions caused by increased microbial activity in forest soil in a short-term incubation study

Chemical Speciation & Bioavailability, 2018
The effects of adding larch (Larix kaempferi) leaf litter and nitrogen (N) on microbial activity and phosphorus (P) fractions in forest soil were examined in a short-term (28-d) laboratory incubation study.
Takashi Kunito, Naomi Hiruta, Yasunori Miyagishi, Hirotaka Sumi, Hitoshi Moro   +4 more
doaj   +1 more source

Enhanced Thermodynamic Stability of UO22+ Complex Through Structure Preorganization of N3O2‐Pentadentate Planar Ligand for Uranium Harvesting from Seawater

Advanced Science, EarlyView.
Thanks to the appropriate structure preorganization of an N3O2‐pentadentate planar ligand, 2,6‐bis(2‐hydroxyphenylmethylaminomethyl)pyridine (H2saldamp) exhibits the strongest coordination affinity to UO22+ (log βU = 33.60) compared to ligands developed for uranium harvesting from seawater to date, as well as good separability of UO22+ from other metal
Ryuto Nabata, Satoru Tsushima, Koichiro Takao   +2 more
wiley   +1 more source

Computer-augmented modeling studies of Pb(II) and Cd(II) complexes with maleic acid in ethylene glycol–water mixture

Chemical Speciation & Bioavailability, 2016
Chemical speciation of binary complexes of Pb(II) and Cd(II) ions with maleic acid have been studied pH metrically in the concentration range of 0–50% v/v ethylene glycol (EG)–water mixtures maintaining an ionic strength of 0.16 molL−1 at 303 K ...
Ch. Nageswara Rao, Bogi Srinu, V. Gowri Kumari, B. B. V. Sailaja   +3 more
doaj   +1 more source

A new species of whipworm from a south american hystricomorph rodent

Memorias do Instituto Oswaldo Cruz, 1990
A new species of whipworm, Trichuris robusti, is described from the cecum and large intestine of rodent, Ctnomys robusti, collected in northern Chile. The nematode shows close affinityto T. bradleyi and T. chilensis, both having been described from Chile
B. B. Babero, R. B. Murua
doaj   +1 more source

Deciphering the Evolution Pattern of Structural Variations Overlapped With Repetitive Sequence During Cattle Evolution

Advanced Science, EarlyView.
The authors complement bovine pan‐SV with massive novel structural variations (SVs) identified through long‐read sequencing of 83 globally distributed cattle breeds. Repetitive sequence‐mediated SVs (rep‐SV) exhibit distinct dynamic patterns throughout cattle sub‐speciation and/or domestication processes, including uneven distribution between chr‐X and
Zhifan Guo, Jinxiu Li, Adeniyi C. Adeola, Xueyan Jiang, Juntao Ma, Jian Xiao, Dexiang Hu, Kaixing Qu, Haihong Wu, Junren Chen, Zhanxing He, Tingting Yin, Ali Esmailizadeh, Jing Luo, Olivier Hanotte, Ya‐Ping Zhang, Yan Li   +16 more
wiley   +1 more source

Ecological disruptive selection acting on quantitative loci can drive sympatric speciation

npj Systems Biology and Applications
The process of speciation generates biodiversity. According to the null model of speciation, barriers between populations arise in allopatry, where, prior to biology, geography imposes barriers to gene flow.
Pavithra Venkataraman, Supreet Saini
doaj   +1 more source