搜索结果: 1-6 共查到“Top-down and bottom-up”相关记录6条 . 查询时间(0.202 秒)
Methodology and Case Studies of Signal-in-Space Error Calculation Top-down Meets Bottom-up
Signal-in-Space Error Calculation Top-down Meets Bottom-up
2015/6/25
Signal in space (SIS) errors are a major error source for the Global Positioning System (GPS). They are defined as any errors related to satellite transmission, mainly satellite position and clock err...
Study about Top-Down and Bottom-Up Controls in Regulating the Phytoplankton Biomass in a Eutrophic Reservoir in Northeastern Brazil
Chlorophyll a Nutrients Zooplankton Tropical Regions
2012/8/30
This study aims to analyze the effects of nutrients and predation by zooplankton on phytoplankton biomass (chlorophyll a) in a eutrophic reservoir in Brazil (Apipucos Reservoir, State of Pernambuco), ...
Top-down and bottom-up influences of jellyfish on primary productivity and planktonic assemblages
Top-down and bottom-up jellyfish on primary productivity planktonic assemblages
2010/4/17
A manipulative mesocosm experiment was done in a saline coastal lake in Australia to compare the top-down and bottom-up influences of jellyfish on primary production and planktonic assemblages. We hyp...
Top-down and bottom-up research in biodemography
aging biodemography evolution life history
2008/12/18
The most efficient way to make scientific progress in biodemography is to encourage bi-directional exchange between ‘top-down’ and ‘bottom-up’ research. This will entail exchange along the continuum o...
Top-down and bottom-up controls on sediment organic matter composition in an experimental seagrass ecosystem
Top-down bottom-up controls sediment organic matter composition an experimental seagrass ecosystem
2007/4/21
We tested the singular and interactive effects of resource availability (light) and community composition (food chain length and herbivore species richness) on eelgrass (Zostera marina) ecosystem prop...
Top-down and bottom-up controls on periphyton biomass and productivity in Lake Tanganyika
Top-down and bottom-up controls periphyton biomass and productivity Lake Tanganyika
2006/5/4
We studied the effects of nutrient availability and grazers on periphyton in the littoral zone of Lake Tanganyika. Using a combination of dissolved nutrient ratios, nutrient diffusing substrates, and ...