Biodiversity
... Species evenness = a measure not just of the number of species present but of the relative abundance of each. ...
... Species evenness = a measure not just of the number of species present but of the relative abundance of each. ...
classification_1
... • Later, these two were divided into five: animals, plants, fungi, protista, and monera (bacteria). • Now, most people, including Bio 112 students, recognize 6 kingdoms and 3 domains. ...
... • Later, these two were divided into five: animals, plants, fungi, protista, and monera (bacteria). • Now, most people, including Bio 112 students, recognize 6 kingdoms and 3 domains. ...
Chapter 15 * Darwin*s Theory of Evolution
... o This squirrel population has been separated from other squirrel populations by a new highway and several construction sites. The main predators of these squirrels are cats and hawks. a. Assume that dark gray squirrels are very visible in this new environment. What is likely to happen to the distri ...
... o This squirrel population has been separated from other squirrel populations by a new highway and several construction sites. The main predators of these squirrels are cats and hawks. a. Assume that dark gray squirrels are very visible in this new environment. What is likely to happen to the distri ...
Why is it easier to set up a captive breeding program for plants than
... specifically mentioned although I did point out that pandas are the emblem of the Worldwide Fund for Nature and I’ve mentioned them several other times. By asking about this species I wanted to test whether you could extrapolate from the example I gave you to another similar case. Similarly, I have ...
... specifically mentioned although I did point out that pandas are the emblem of the Worldwide Fund for Nature and I’ve mentioned them several other times. By asking about this species I wanted to test whether you could extrapolate from the example I gave you to another similar case. Similarly, I have ...
CHAPTER 23: Species and Their Formation
... B) potentially interbreeding natural populations that are reproductively isolated from other such groups. C) actually or potentially interbreeding natural populations that are reproductively isolated from other such groups. D) actually or potentially interbreeding natural populations that are reprod ...
... B) potentially interbreeding natural populations that are reproductively isolated from other such groups. C) actually or potentially interbreeding natural populations that are reproductively isolated from other such groups. D) actually or potentially interbreeding natural populations that are reprod ...
File
... A measure of species richness in a community and the evenness of the abundance of the different species The more species AND the more evenly the number of organisms are distributed among different species = increased species diversity Ecosystems with high species diversity = more stability than ecos ...
... A measure of species richness in a community and the evenness of the abundance of the different species The more species AND the more evenly the number of organisms are distributed among different species = increased species diversity Ecosystems with high species diversity = more stability than ecos ...
Maintaining Variation
... New species arise by the evolutionary process of ______________, which begins as gene flow ends between populations ...
... New species arise by the evolutionary process of ______________, which begins as gene flow ends between populations ...
Unit 5 Objective/Vocab Sheet
... prevents successful reproduction. This may lead to speciation (formation of new species) and endangering species to extinction due to a small gene pool. evolutionary changes in a population that occurs slowly, but steadily structure that is similar in related organisms because it was inherited from ...
... prevents successful reproduction. This may lead to speciation (formation of new species) and endangering species to extinction due to a small gene pool. evolutionary changes in a population that occurs slowly, but steadily structure that is similar in related organisms because it was inherited from ...
Twine Time
... • More events occur near the present than the past • Very few events are given for the first 3 billion years of Earth’s history • The biological events tend to be grouped together • Plants appeared first, then animals • One or more biotic events occur after an abiotic event ...
... • More events occur near the present than the past • Very few events are given for the first 3 billion years of Earth’s history • The biological events tend to be grouped together • Plants appeared first, then animals • One or more biotic events occur after an abiotic event ...
Lecture 11 Speciation
... the forms which…come very near to, but do not quite arrive at, the rank of species. …A well-marked variety may therefore be called an incipient species. …From these remarks it will be seen that I look at the term species as one arbitrarily given. Darwin, The Origin of Species ...
... the forms which…come very near to, but do not quite arrive at, the rank of species. …A well-marked variety may therefore be called an incipient species. …From these remarks it will be seen that I look at the term species as one arbitrarily given. Darwin, The Origin of Species ...
Natural selection handout
... Overreproduction leads to competition based on variation. Overreproduction Biotic potential: All species have such great potential fertility that their population size would increase exponentially if all individuals reproduced successfully. Variation within a population: Individuals of a populat ...
... Overreproduction leads to competition based on variation. Overreproduction Biotic potential: All species have such great potential fertility that their population size would increase exponentially if all individuals reproduced successfully. Variation within a population: Individuals of a populat ...
Chapter #9 – Properties of Populations
... relevant scientific paper. You must read the paper and respond verbally to a series of questions designed to initiate a scientific discussion on the subject. You will be graded in the same manner (sheet is forthcoming). You must sign up for the time during the examination week (30 minute segments). ...
... relevant scientific paper. You must read the paper and respond verbally to a series of questions designed to initiate a scientific discussion on the subject. You will be graded in the same manner (sheet is forthcoming). You must sign up for the time during the examination week (30 minute segments). ...
What is Biodiversity?
... Symbiosis: Mutualism, Commensalism and Parasitism The species in an ecosystem will interact in different ways. These interactions may have positive, neutral or negative impacts on the species involved. The term symbiosis can be used to broadly refer to these types of relationships as it directly tra ...
... Symbiosis: Mutualism, Commensalism and Parasitism The species in an ecosystem will interact in different ways. These interactions may have positive, neutral or negative impacts on the species involved. The term symbiosis can be used to broadly refer to these types of relationships as it directly tra ...
File - Mr. Shanks` Class
... - Different species breed at different times of the year Examples - Often used by plants because plants cannot move so they must use mechanisms such as timing to reproduce at specific times One might flower in the early spring, and by the time that is done flowering another species might just begin ...
... - Different species breed at different times of the year Examples - Often used by plants because plants cannot move so they must use mechanisms such as timing to reproduce at specific times One might flower in the early spring, and by the time that is done flowering another species might just begin ...
Chapter 24 The Origin of Species
... Until the peripheral isolate becomes a large population, genetic drift will continue to change its gene pool at random Evolution caused by natural selection may take a different direction in the peripheral isolate than in the parent population Adaptive radiation - the evolution of many diversely ada ...
... Until the peripheral isolate becomes a large population, genetic drift will continue to change its gene pool at random Evolution caused by natural selection may take a different direction in the peripheral isolate than in the parent population Adaptive radiation - the evolution of many diversely ada ...
Species Concepts
... A species is a group of actually or potentially interbreeding organisms separated from other such groups. ...
... A species is a group of actually or potentially interbreeding organisms separated from other such groups. ...
Species distribution
Species distribution is the manner in which a biological taxon is spatially arranged. Species distribution is not to be confused with dispersal, which is the movement of individuals away from their area of origin or from centers of high population density. A similar concept is the species range. A species range is often represented with a species range map. Biogeographers try to understand the factors determining a species' distribution. The pattern of distribution is not permanent for each species. Distribution patterns can change seasonally, in response to the availability of resources, and also depending on the scale at which they are viewed. Dispersion usually takes place at the time of reproduction. Populations within a species are translocated through many methods, including dispersal by people, wind, water and animals. Humans are one of the largest distributors due to the current trends in globalization and the expanse of the transportation industry. For example, large tankers often fill their ballasts with water at one port and empty them in another, causing a wider distribution of aquatic species.Biogeography is the study of the distribution of biodiversity over space and time. It is very useful in understanding species distribution through factors such as speciation, extinction, continental drift, glaciation, variation of sea levels, river capture and available resources. This branch of study not only gives a description of the species distribution, but also a geographical explanation for the distribution of particular species. The traditional biogeographic regions were first modeled by Alfred Wallace in The Geographical Distribution of Animals (1876). These were based on the work of Sclater's terrestrial biogeographic regions. Wallace's system was based on both birds and vertebrates, including non-flying mammals, which better reflect the natural divisions of the Earth due to their limited dispersal abilities.