搜索结果: 1-15 共查到“知识库 理学 Diversity”相关记录171条 . 查询时间(0.133 秒)
Demographic structure and genetic diversity of the endangered Bísaro pig: Evolution and current status
conservation genetic variation inbreeding pedigree analysis swine
2018/11/23
Bísaro pig, a local endangered swine breed, has gained popularity in the recent years. A complete pedigree was used to evaluate the population structure and investigate the current breed’s genetic var...
Genetic Diversity and Admixture in Three Native Draught Horse Breeds Assessed Using Microsatellite Markers
population structure endangered breeds gene flow genetic distances
2018/3/5
In this study, we aimed to estimate and compare genetic diversity of two native draught horse breeds and check
the possible influence of Noriker breed population on these native breeds. Genetic analy...
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 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...
Intraspecific Genetic Diversity in the Marine Shrimp Penaeus vannamei: Multiple Polymorphic Elongation Factor-1a Loci Revealed by Intron Sequencing
EPIC-PCR nuclear introns shrimp concerted evolution
2015/12/17
Intron sequences from the elongation factor-1a (EF1a) gene from the marine shrimp Penaeus
vannamei reveal extensive variation even among inbred populations of hatchery-raised shrimp. Among 44
indivi...
Pre-Whaling Genetic Diversity and Population Ecology in Eastern Pacific Gray Whales: Insights from Ancient DNA and Stable Isotopes
Population Ecology Pre-Whaling Genetic Diversity
2015/12/11
Commercial whaling decimated many whale populations, including the eastern Pacific gray whale, but little is known about
how population dynamics or ecology differed prior to these removals. Of partic...
Extensive sympatry, cryptic diversity and introgression throughout the geographic distribution of two coral species complexes
Acropora, ryptic species hybridization
2015/12/11
The identification of species is one of the most basic, and yet critically important, issues
in biology with far-reaching potential implications for fields such as biodiversity
conservation, populat...
Marine reserves help preserve genetic diversity after impacts derived from climate variability: Lessons from the pink abalone in Baja California
Marine reserve Overfishing
2015/12/11
Genetic diversity is crucial for the adaptation of exploited species like the pink abalone
(Haliotis corrugata), faced with threats from climate change, overfishing and impacts
associated with aquac...
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...
BLIND SOURCE SEPARATION BASED ON SPACE-TIME-FREQUENCY DIVERSITY
BLIND SOURCE SEPARATION SPACE-TIME-FREQUENCY DIVERSITY
2015/9/29
We investigate the assumption that sources have disjoint support in the time domain, time-frequency domain, or frequency domain. We call such signals disjoint orthogonal. The class of signals that app...
A River That Flows to the Sea:The Marine Biological Diversity Movement
River That Flows to the Sea Marine Biological Diversity Movement
2015/8/13
We are unique. Although all species affect their environments, Homo sapiens affects more of our planet in more ways to a greater degree than any other species, past or present. But we are also unique ...
The Role of Marine and Coastal Protected Areas in the Conservation and Sustainable Use of Biological Diversity
Marine and Coastal Protected Areas Conservation and Sustainable Biological Diversity
2015/8/13
At a time when threats to the marine environment have never seemed greater, the importance of marine biological diversity and its conservation have never been more clear. While the traditional measure...