Marion F Haug,Oliver Biehlmaier,Kaspar P Mueller et al.
Marion F Haug et al.
Background: Visual acuity, the ability of the visual system to distinguish two separate objects at a given angular distance, is influenced by the optical and neuronal properties of the visual system. Although many factors...
Of tests, trochs, shells, and spicules: Development of the basal mollusk Wirenia argentea (Solenogastres) and its bearing on the evolution of trochozoan larval key features [0.03%]
关于测试、螺卷幼虫、贝壳和刺：底栖软体动物Wirenia argentea（原始头足纲）的发育及其对曲折幼虫关键特征演化的启示
Christiane Todt,Andreas Wanninger
Christiane Todt
Background: The phylogenetic status of the aplacophoran mollusk taxon Solenogastres (Neomeniomorpha) is controversially discussed. Some authors propose the clade to represent the most basal branch within Mollusca, while o...
Dichlorvos exposure impedes extraction and amplification of DNA from insects in museum collections [0.03%]
Dichlorvos暴露阻碍了博物馆收藏的昆虫DNA的提取和扩增
Marianne Espeland,Martin Irestedt,Kjell Arne Johanson et al.
Marianne Espeland et al.
Background: The insecticides dichlorvos, paradichlorobenzene and naphthalene have been commonly used to eradicate pest insects from natural history collections. However, it is not known how these chemicals affect the DNA ...
The influence of a hot environment on parental cooperation of a ground-nesting shorebird, the Kentish plover Charadrius alexandrinus [0.03%]
高温对穴巢涉禽环颈鸻亲鸟合作育雏的影响
Monif Alrashidi,András Kosztolányi,Clemens Küpper et al.
Monif Alrashidi et al.
Background: Parental care often increases offspring survival, but is costly to the parents. A trade-off between the cost and benefit of care is expected, so that when care provisioning by both parents is essential for the...
Base composition, selection, and phylogenetic significance of indels in the recombination activating gene-1 in vertebrates [0.03%]
脊椎动物类重组激活基因-1的碱基组成、选择及内含子的系统发生意义
Ylenia Chiari,Arie van der Meijden,Ole Madsen et al.
Ylenia Chiari et al.
Background: The Recombination Activating Proteins, RAG1 and RAG2, play a crucial role in the immune response in vertebrates. Among the nuclear markers currently used for phylogenetic purposes, Rag1 has especially enjoyed ...
Invasions, DNA barcodes, and rapid biodiversity assessment using ants of Mauritius [0.03%]
用入侵物种、DNA条形码和毛里求斯蚂蚁的快速生物多样性评价检测物种丰富度
M Alex Smith,Brian L Fisher
M Alex Smith
Background: Using an understudied taxon (Hymenoptera, Formicidae) found on a tropical island (Mauritius) where native flora and fauna have been threatened by 400 years of habitat modification and introduced species, we te...
Towards a comprehensive barcode library for arctic life - Ephemeroptera, Plecoptera, and Trichoptera of Churchill, Manitoba, Canada [0.03%]
加拿大曼尼托巴省丘吉尔地区的无脊椎动物条形码数据库——石蛾、𫌀翅目和毛翅目昆虫
Xin Zhou,Sarah J Adamowicz,Luke M Jacobus et al.
Xin Zhou et al.
Background: This study reports progress in assembling a DNA barcode reference library for Ephemeroptera, Plecoptera, and Trichoptera ("EPTs") from a Canadian subarctic site, which is the focus of a comprehensive biodivers...
Filling the gap - COI barcode resolution in eastern Palearctic birds [0.03%]
填补空白-东方古北界鸟类的COI条形码分辨率研究
Kevin Cr Kerr,Sharon M Birks,Mikhail V Kalyakin et al.
Kevin Cr Kerr et al.
Background: The Palearctic region supports relatively few avian species, yet recent molecular studies have revealed that cryptic lineages likely still persist unrecognized. A broad survey of cytochrome c oxidase I (COI) s...
Functional chloroplasts in metazoan cells - a unique evolutionary strategy in animal life [0.03%]
功能叶绿体的动物细胞——动物界中独特的进化战略
Katharina Händeler,Yvonne P Grzymbowski,Patrick J Krug et al.
Katharina Händeler et al.
Background: Among metazoans, retention of functional diet-derived chloroplasts (kleptoplasty) is known only from the sea slug taxon Sacoglossa (Gastropoda: Opisthobranchia). Intracellular maintenance of plastids in the sl...
A heritable component in sex ratio and caste determination in a Cardiocondyla ant [0.03%]
巢穴周期影响火蚁繁殖型比率的遗传机制
Sabine Frohschammer,Jürgen Heinze
Sabine Frohschammer
Studies on sex ratios in social insects provide among the most compelling evidence for the importance of kin selection in social evolution. The elegant synthesis of Fisher's sex ratio principle and Hamilton's inclusive fitness theory predic...