搜索结果: 1-15 共查到“动物学 Diversity”相关记录66条 . 查询时间(0.129 秒)
Unraveling arthropod genomic diversity over 500 million years of evolution（图）
arthropod genomic diversity 500 million years evolution
2020/2/20
Comparative analyses by scientists at the Swiss Institute of Bioinformatics and other institutions of 76 arthropod species spanning 500 million years of evolution reveal genomic changes that point to ...
Stanford research finds that diversity of large animals plays an important role in carbon cycle
Stanford diversity of large animals plays carbon cycle
2017/10/25
Trees in tropical forests are well known for removing carbon dioxide from the air and storing the potent greenhouse gas as carbon in their leafy branches and extensive roots. But a new analysis led by...
Glassfrogs Show Surprising Diversity of Parental Strategies
Glassfrogs Diversity Parental Strategies
2017/4/27
Laid on leaves hanging over streams in tropical rainforests, glassfrog eggs are tasty snacks for snakes, insects and other predators until they hatch and drop into the streams to begin life as tadpole...
Genetic diversity within and gene flow between three draught horse breeds using genealogical information
genetic drift inbreeding Silesian Noriker Noriker Czech-Moravian Belgian horse
2016/11/11
Three draught horse breeds are maintained in the Czech Republic: the Silesian Noriker (SN), the Noriker (N), and the Czech-Moravian Belgian (CMB). Because the SN and CMB populations are currently clos...
Genetic diversity crucial to Florida scrub-jay's survival
Genetic diversity Florida scrub-jay survival
2016/11/4
Legendary conservationist Aldo Leopold once advised: "To keep every cog and wheel is the first precaution of intelligent tinkering." For the Endangered Florida Scrub-Jay, new research shows that ...
Genetic Diversity Analysis of South and East Asian Duck Populations Using Highly Polymorphic Microsatellite Markers
Discrimination Duck Genetic Diversity Microsatellite Marker
2016/5/19
Native duck populations have lower productivity, and have not been developed as much as commercials duck breeds. However, native ducks have more importance in terms of genetic diversity and potentiall...
Microsatellite Analysis of the Genetic Diversity and Population Structure in Dairy Goats in Thailand
Microsatellite Genetic Diversity Dairy Goat
2016/5/19
The genetic relationships between different populations and breeds of exotic dairy goats in Thailand were studied using 12 microsatellite markers. Blood samples were obtained from 211 goats from Depar...
Study of Genetic Diversity among Simmental Cross Cattle in West Sumatra Based on Microsatellite Markers
Simmental West Sumatra Microsatellite Genetic Diversity
2016/5/19
A study was conducted to assess the genetic diversity among Simmental Cross cattle in West Sumatra using microsatellite DNA markers. A total of 176 individual cattle blood samples was used for obtaini...
Genetic Diversity and Phylogenetic Analysis of South-East Asian Duck Populations Based on the mtDNA D-loop Sequences
Duck Populations D-loop Region Haplotype Mitochondrial DNA Phylogeny
2016/12/28
The maternally inherited mitochondrial DNA (mtDNA) D–loop region is widely used for exploring genetic relationships and for investigating the origin of various animal species. Currently, domestic duck...
Experimental defaunation of terrestrial mammalian herbivores alters tropical rainforest understorey diversity
mammalian herbivores understorey diversity
2015/11/13
sumed by mammals (e.g.Brosimum alicastrumandAmpelocera hottlei) increased
in their abundance in TE plots. Rarefaction curves showed that species diversumed by mammals (e.g.Brosimum alicastrumandAmpel...
Y-Single Nucleotide Polymorphisms Diversity in Chinese Indigenous Horse
Chinese Indigenous Horse Y Chromosome Single Nucleotide Polymorphisms Diversity
2016/5/18
In contrast to high genetic diversity of mitochondrial DNA (mtDNA), equine Y chromosome shows extremely low variability, implying limited patrilines in the domesticated horse. In this study, we applie...
Molecular Phylogenetic Diversity and Spatial Distribution of Bacterial Communities in Cooling Stage during Swine Manure Composting
Diversity Restriction Fragment Length Polymorphism
2016/5/18
Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and subsequent sub-cloning and sequencing were used in this study to analyze the molecular phylogenetic diversity and spat...
Genetic Diversity and Population Structure in Native Chicken Populations from Myanmar, Thailand and Laos by Using 102 Indels Markers
Indels Markers Genetic Admixture Genetic Diversity Native Chicken
2016/5/17
The genetic diversity of native chicken populations from Myanmar, Thailand, and Laos was examined by using 102 insertion and/or deletion (indels) markers. Most of the indels loci were polymorphic (71%...
DIVERSITY AND MOVEMENT PATTERNS OF PASSERINE BIRDS NEAR AN URBAN CENTER ON SANTA CRUZ, GALAPAGOS ISLANDS
Galapagos Islands Geospiza fortis urbanization
2015/1/4
Many insights into ecological and evolutionary processes have come from studies of island systems. Diversity, abundance, and movement of species are restricted on smaller islands, but these dynamics c...
The Role of Dawn Song in Tree Swallows and its Place in the Diversity of Oscine Song Learning
acoustic landmarks bird song mimicry sexual selection Tachycineta bicolor vocal learning
2014/12/18
Aspects of the behavioral ecology of bird song learning are examined in three parts. First, an approach from image analysis is extended to allow rapid, quantitative description of animal sounds. In th...