搜索结果: 1-15 共查到“知识库 生物学 ecology”相关记录32条 . 查询时间(0.142 秒)
动物对植物的取食，即植食过程，是自然界最为常见的生物间相互作用之一。这一过程对植物的生长、繁殖、生存以及生物多样性维持有着深远影响。然而，自然界中的植食程度在不同物种之间差异巨大，如何解释这种差异，已成为当前群落生态学领域数十年来关注的基本科学问题之一。
干旱区覆盖了全球40%以上土地面积，具有巨大的储碳潜力，但其土壤有机碳含量较低。一般认为，干旱条件抑制植物生长，降低其在土壤中的碳源输入。然而，土壤有机碳储量取决于有机碳源输入与分解之间的平衡。土壤有机碳的组成控制其微生物分解过程，其中，溶解性有机质（DOM）是土壤中最活跃的碳组分。因此，认识溶解性有机质组成和可降解性特征及其微生物驱动机制，将有助于深入理解干旱区土壤储碳机制。
Ecosystems in Action: Lessons from Marine Ecology about Recovery, Resistance, and Reversibility
sustainabilit resilience kelp forest
2015/12/11
The study of ecosystems in action, by measuring ecosystem recovery from disturbance, resistance to alterations, and the reversibility of ecosystem
changes, highlights features of natural communities ...
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...
The role of genes in understanding the evolutionary ecology of reef building corals
Coral Genetics FST Acropora
2015/12/11
A key tool in evolutionary ecology is information about the temporal dynamics
of species over time. Paleontology has long been the major source of this information,
however, a very different source ...
Researchers introduce a macrosystems approach to study stream ecology
Researchers macrosystems approach study stream ecology
2015/3/4
Kansas State University scientists and collaborators have developed a new method for studying a variety of streams—including tropical, prairie or forested streams—across continents.Walter Dodds, unive...
Armillaria in Massachusetts Forests: Ecology, Species Distribution, and Population Structure, with an Emphasis on Mixed Oak Forests
AFLPs Armillaria elongation factor 1-alpha polyphenols Quercus
2014/11/4
The ecology, species distribution, and population structure of Armillaria was investigated in the forests of Massachusetts. From 64 plots at 16 sites, 640 isolates of Armillaria were collected from si...
The Ecology of Microbial Communities Associated with Macrocystis pyrifera
Macrocystis pyrifera Microbial Communities
2015/12/11
Kelp forests are characterized by high biodiversity and productivity, and the cycling of kelp-produced carbon is a vital
process in this ecosystem. Although bacteria are assumed to play a major role ...
Behavioral ecology and ecology have projects in common.
Community ecology can provide behavioral ecology with the
tools to ask realistic questions about the current action of natural selection. Evol...
Effects of Keratinase on Performance, Nutrient Utilization, Intestinal Morphology, Intestinal Ecology and Inflammatory Response of Weaned Piglets Fed Diets with Different Levels of Crude Protein
Keratinase Crude Protein Digestibility Performance Weaned Piglets
2016/5/9
Two experiments were conducted to investigate the in vitro ability of keratinase to hydrolyze soybean glycinin and β-conglycinin and to evaluate the in vivo effects of keratinase when included in corn...
Statistical Mechanics of Horizontal Gene Transfer in Evolutionary Ecology
Statistical Mechanics Horizontal Gene Transfer Evolutionary Ecology
2011/1/5
The biological world, especially its majority microbial component, is strongly interacting and may be dominated by collective effects. In this review, we provide a brief introduction for statistical p...
The diversity and ecology of epiphytic lichens in “Evolution Canyon” II, Lower Nahal Keziv, Upper Western Galilee, Israel
Epiphytic lichens species diversity ecology, biogeography reproductive strategy canonical correspondence analysis
2010/3/17
Different populations of epiphytic lichens were studied in a microsite in Lower Nahal Keziv, Western Upper Galilee, Israel, which is designated as an "Evolution Canyon" (EC) II. In all, 24 lichen spec...
Fibrolytic Rumen Bacteria: Their Ecology and Functions
Fiber Digestion Rumen Bacteria Molecular Ecology Uncultured Bacteria
2016/4/28
Among rumen microbes, bacteria play important roles in the biological degradation of plant fiber due to their large biomass and high activity. To maximize the utilization of fiber components such as c...