Species evenness - Study guides, Class notes & Summaries

environmental pressures - ️️the factors (abiotic or biotic) in an ecosystem which put pressure on an organism's survival and increase competition (whether inter-species or intra-species) biodiversity - ️️a combination of the species diversity, genetic diversity and habitat diversity of an ecosystem variation - ️️the differences, either physical or genetic, between individuals of a species simpson's diversity index - ️️a measure of diversity between similar ecosystems ...

? Rule the world - Phytoplankton! - Fix lots of CO2, produce 90% of the Earth's O2 and help create clouds - Limited by: P, N, silica (diatoms), iron, trace elements - Could harness phytoplankton to control greenhouse gases (consume CO2 when fixing C - phytoplankton is iron limited; experiment: seed ocean with iron to create phytoplankton blooms to sequester (take out of the atmosphere and bring it to depths) carbon - SOIREE - Southern Ocean Iron Release Experiment - Large phytoplankton bl...

Population - ANSWER A group of individuals that belong to the same species and live in the same area Purpose of variability within a population - ANSWER - some genetic variants have advantages over others - natural selection can act on variation (if needed) genetic divergence - ANSWER the process in which two or more populations of an ancestral species accumulate independent genetic changes (mutations) through time, often after the populations have become reproductively isolated for some ...

What is a population? - ANSWER interbreeding of a group of individuals who have the same species, geographics and time period. The population is exchanging genes What is the purpose of variability within a pop? - ANSWER some genetic variants have advantages and natural selection can act on variation Two process that can occur if a pop. cant exchange genes - ANSWER genetic divergence and speciation Decreasing variation in a species leads to- - ANSWER instability 3 levels of biodiversi...

Biodiversity is measurable at three levels: - ANSWER Genetic level= variability within species Species level= variability among species Ecosystem level= variability among ecosystems Three domains of life: - ANSWER Archaea, eukarya and bacteria Population - ANSWER interbreeding group of individuals. Populations exchange genes Purpose variability within a population - ANSWER 1. some genetic variants have advantages over others 2. natural selection can act on variation What if popula...

SCI 225biological species concept - correct answer group of populations whose members have the potential to produce fertile offspring. Species richness - correct answer the number of different species in a community Species evenness - correct answer relative abundance of each species Reasons for more species at equator - correct answer Climate stability, primary productivity How to measure biodiversity - correct answer collection of diff species in particular location long term cl...

Bio 150 final jmu Correct Questions & Soluti Biodiversity is measurable at three levels: - ANSWER Genetic level= variability within species Species level= variability among species Ecosystem level= variability among ecosystems Three domains of life: - ANSWER Archaea, eukarya and bacteria Population - ANSWER interbreeding group of individuals. Populations exchange genes Purpose variability within a population - ANSWER 1. some genetic variants have advantages over others 2. natural se...

sci 225species richness - correct answer the total number of different species in a community species evenness - correct answer the relative abundance of species in a community (concentration of that species) which statement best describes biodiversity at the equator - correct answer species richness is higher at the equator than at the poles sedimentary rocks provide evidence of - correct answer long term (more than 1 million years) regional climate change a genetic mutation causes ...

Genetic Diversity - correct answer measures variety of different versions of same genes within a species Species Diversity - correct answer measures number of different kinds of organisms within a community Ecological Diversity - correct answer measures richness and complexity of a community Fragmentation/Cloning - correct answer causes less genetic diversity within an ecosystem Species Richness - correct answer total number of species in a community Species Evenness - ...

SCI 225Biodiversity - correct answer more species near the equator, fewer by the poles biological species concept - correct answer members of the same species are able to reproduce fertile offspring in nature Community - correct answer collection of populations of different species in a particular location species richness - correct answer the number of different species in a community species evenness - correct answer relative abundance of each species in a community limitations ...