The speed of ecological speciation
... Hybrids may sometimes land on new adaptive peaks, rather than inevitably falling into the fitness valleys between peaks. This supposition is supported by a growing number of studies, including recent work on hybrid speciation in plants (Rieseberg et al. 2003), invertebrates (Schwarz et al. 2005), an ...
... Hybrids may sometimes land on new adaptive peaks, rather than inevitably falling into the fitness valleys between peaks. This supposition is supported by a growing number of studies, including recent work on hybrid speciation in plants (Rieseberg et al. 2003), invertebrates (Schwarz et al. 2005), an ...
Evolutionary Game Theory First published Mon Jan 14, 2002
... Theory of Natural Selection (1930)] in his attempt to explain the approximate equality of the sex ratio in mammals. The puzzle Fisher faced was this: why is it that the sex ratio is approximately equal in many species where the majority of males never mate? In these species, the non-mating males wou ...
... Theory of Natural Selection (1930)] in his attempt to explain the approximate equality of the sex ratio in mammals. The puzzle Fisher faced was this: why is it that the sex ratio is approximately equal in many species where the majority of males never mate? In these species, the non-mating males wou ...
File - Science with Snyder
... 1. Structures that have a similar embryological origin and structure but are adapted for different purposes, such as a bat wing and a human arm, are called _____. a. embryological structures b. analogous structures c. homologous structures d. homozygous structures 2. What is the movement of genes in ...
... 1. Structures that have a similar embryological origin and structure but are adapted for different purposes, such as a bat wing and a human arm, are called _____. a. embryological structures b. analogous structures c. homologous structures d. homozygous structures 2. What is the movement of genes in ...
Evolution of Darwin`s finches caused by a rare climatic event
... up to the time when the whole population responded to rainfall by breeding for the first time since 1984. Only 32 % survived to breed in 1987. The population underwent a shift in beak size during this time. Beak depth and width were significantly smaller among the survivors than among nonsurvivors. ...
... up to the time when the whole population responded to rainfall by breeding for the first time since 1984. Only 32 % survived to breed in 1987. The population underwent a shift in beak size during this time. Beak depth and width were significantly smaller among the survivors than among nonsurvivors. ...
EvoDevo and niche construction: building bridges
... converse relationship. It posits that environments, as well as genes, are sources of cues for the construction of phenotypes. Whereas classical evolutionary theory sees the organism as the key that has to fit into the environment’s lock, both ecological developmental biology and niche construction s ...
... converse relationship. It posits that environments, as well as genes, are sources of cues for the construction of phenotypes. Whereas classical evolutionary theory sees the organism as the key that has to fit into the environment’s lock, both ecological developmental biology and niche construction s ...
On reciprocal causation in the evolutionary process
... of evolution’’ that is a ‘‘co-contributor, with natural selection, to the evolutionary process itself’’ (p. 370). This argument is based on the somewhat disingenuous contention that evolutionary biologists view natural selection as an abiotic entity that is not influenced or changed by living organi ...
... of evolution’’ that is a ‘‘co-contributor, with natural selection, to the evolutionary process itself’’ (p. 370). This argument is based on the somewhat disingenuous contention that evolutionary biologists view natural selection as an abiotic entity that is not influenced or changed by living organi ...
this PDF file - Reports of the National Center for Science
... Lamarckian perspective should be taken into account in biology in order to produce a new evolutionary synthesis that would describe and explain the biological world better than the classical theory of evolution (that is, the Modern Synthesis). As conveyed by the title, Lamarckism includes very diffe ...
... Lamarckian perspective should be taken into account in biology in order to produce a new evolutionary synthesis that would describe and explain the biological world better than the classical theory of evolution (that is, the Modern Synthesis). As conveyed by the title, Lamarckism includes very diffe ...
Evolutionary Connectionism: Algorithmic Principles Underlying the
... reproductive constraints (e.g. reproduction through a single-celled population bottle-neck) come to define a multicellular organism like a giraffe as a Darwinian unit in the first place—suppressing fitness differences between the cells or genes within an individual (so they do not compete with each ...
... reproductive constraints (e.g. reproduction through a single-celled population bottle-neck) come to define a multicellular organism like a giraffe as a Darwinian unit in the first place—suppressing fitness differences between the cells or genes within an individual (so they do not compete with each ...
Descent With Modification
... • The Origin of Species challenged a worldview that had been accepted for centuries. • The key classical Greek philosophers who influenced Western culture, Plato and Aristotle, opposed any concept of evolution. • Plato believed in two worlds: one real world that is ideal and perfect and an illusory ...
... • The Origin of Species challenged a worldview that had been accepted for centuries. • The key classical Greek philosophers who influenced Western culture, Plato and Aristotle, opposed any concept of evolution. • Plato believed in two worlds: one real world that is ideal and perfect and an illusory ...
Neophenogenesis - The University of North Carolina at Greensboro
... dichotomy was vigorously criticized by developmentalists such as Lehrman (1953, 1970), Schneirla (1956, 1966), Jensen (1961), and Gottlieb (1970) who, building on Kuo's (1921, 1929) pioneering insights, argued that all behavior, and indeed all phenotypic characters, arises in development as the res ...
... dichotomy was vigorously criticized by developmentalists such as Lehrman (1953, 1970), Schneirla (1956, 1966), Jensen (1961), and Gottlieb (1970) who, building on Kuo's (1921, 1929) pioneering insights, argued that all behavior, and indeed all phenotypic characters, arises in development as the res ...
Microgeographic adaptation and the spatial scale of evolution
... Local adaptation has been a major focus of evolutionary ecologists working across diverse systems for decades. However, little of this research has explored variation at microgeographic scales because it has often been assumed that high rates of gene flow will prevent adaptive divergence at fine spa ...
... Local adaptation has been a major focus of evolutionary ecologists working across diverse systems for decades. However, little of this research has explored variation at microgeographic scales because it has often been assumed that high rates of gene flow will prevent adaptive divergence at fine spa ...
Evolution - Bee-Man
... around the world laid the groundwork for his theory of evolution. (1833) Charles Lyell - processes occurring now shaped Earth’s geological features over long periods of time. (1858) Alfred Wallace - he also speculated that evolution by natural selection occurs. This spurred Darwin on to publish his ...
... around the world laid the groundwork for his theory of evolution. (1833) Charles Lyell - processes occurring now shaped Earth’s geological features over long periods of time. (1858) Alfred Wallace - he also speculated that evolution by natural selection occurs. This spurred Darwin on to publish his ...
Slide 1
... adaptation to the environment and the origin of new species as closely related processes From studies made years after Darwin’s voyage, biologists have concluded that this is what happened to the Galápagos finches ...
... adaptation to the environment and the origin of new species as closely related processes From studies made years after Darwin’s voyage, biologists have concluded that this is what happened to the Galápagos finches ...
Ernst Mayr, 1904-2005
... as individuals (temporally and spacially bounded, and capable of reproduction and interaction) rather than as classes or sets (organisms possessing a common property),9,10 Mayr appreciated the compatibility of this view with his own and accepted the role of godfather of the idea.11 As a set or class ...
... as individuals (temporally and spacially bounded, and capable of reproduction and interaction) rather than as classes or sets (organisms possessing a common property),9,10 Mayr appreciated the compatibility of this view with his own and accepted the role of godfather of the idea.11 As a set or class ...
Conceptual Barriers to Progress Within Evolutionary Biology
... The niche construction perspective differs from the conventional perspective in recognizing two major adaptive processes in evolution, natural selection and niche construction. The perspective also recognizes two general forms of inheritance in evolution, genetic and ecological inheritance. There ar ...
... The niche construction perspective differs from the conventional perspective in recognizing two major adaptive processes in evolution, natural selection and niche construction. The perspective also recognizes two general forms of inheritance in evolution, genetic and ecological inheritance. There ar ...
Ch16_17_19ReviewRegBio
... Know how mass extinctions are used in the geologic time scale, when most recent mass extinction occurred, cause of ...
... Know how mass extinctions are used in the geologic time scale, when most recent mass extinction occurred, cause of ...
Evolutionary stasis, constraint and other
... of phylogenetic inertia’. In this case, the operating hypothesis is built on an adaptive framework and ES ends up being the alternative explanatory hypothesis (‘origin, not maintenance”, Coddington, 1988). The differences between these two interpretations are subtle but important. The latter case pu ...
... of phylogenetic inertia’. In this case, the operating hypothesis is built on an adaptive framework and ES ends up being the alternative explanatory hypothesis (‘origin, not maintenance”, Coddington, 1988). The differences between these two interpretations are subtle but important. The latter case pu ...
Power Point Presentation
... 1795 Hutton proposes his theory of gradualism. 1798 Malthus publishes “Essay on the Principle of Population.” 1809 Lamarck publishes his hypothesis of evolution. 1830 Lyell publishes Principles of Geology. 1831–1836 Darwin travels around the world on HMS Beagle. 1837 Darwin begins his notebooks. 184 ...
... 1795 Hutton proposes his theory of gradualism. 1798 Malthus publishes “Essay on the Principle of Population.” 1809 Lamarck publishes his hypothesis of evolution. 1830 Lyell publishes Principles of Geology. 1831–1836 Darwin travels around the world on HMS Beagle. 1837 Darwin begins his notebooks. 184 ...
Biological Aging: Active and Passive Mechanisms Compared
... mechanisms can be expected to vary between species just as evolved mechanisms that provide for vision, digestion, or mobility vary between species. The generic deteriorative processes may be harnessed in implementing a life span management system. The first formal proposal of an active aging mechani ...
... mechanisms can be expected to vary between species just as evolved mechanisms that provide for vision, digestion, or mobility vary between species. The generic deteriorative processes may be harnessed in implementing a life span management system. The first formal proposal of an active aging mechani ...
Darwin and Derrida
... produced by special acts of creation, and varieties which are acknowledged to have been produced by secondary laws” (OS 379). Boundaries dissolve, never having existed, and “acts of creation” are not creation, are not original: that which was supposed “secondary”—the law of nature—is in fact more pr ...
... produced by special acts of creation, and varieties which are acknowledged to have been produced by secondary laws” (OS 379). Boundaries dissolve, never having existed, and “acts of creation” are not creation, are not original: that which was supposed “secondary”—the law of nature—is in fact more pr ...
What is `Natural` in Natural Selection? To understand Darwin`s
... populations. If we underline the distinctive nature of changes at different levels of biological organisation, we can understand how they are related in the long history of life. ...
... populations. If we underline the distinctive nature of changes at different levels of biological organisation, we can understand how they are related in the long history of life. ...
SBL100 for 2nd Semester 2014-1515 Slot C -
... Second Law: All the acquisitions or losses wrought by nature on individuals, through the influence of the environment are preserved by reproduction to the new individuals which arise, provided that the acquired modifications are common to both sexes ...
... Second Law: All the acquisitions or losses wrought by nature on individuals, through the influence of the environment are preserved by reproduction to the new individuals which arise, provided that the acquired modifications are common to both sexes ...
Microgeographic adaptation and the spatial scale of evolution
... Local adaptation has been a major focus of evolutionary ecologists working across diverse systems for decades. However, little of this research has explored variation at microgeographic scales because it has often been assumed that high rates of gene flow will prevent adaptive divergence at fine spa ...
... Local adaptation has been a major focus of evolutionary ecologists working across diverse systems for decades. However, little of this research has explored variation at microgeographic scales because it has often been assumed that high rates of gene flow will prevent adaptive divergence at fine spa ...
- roar@UEL - University of East London
... Epigenetic processes are a potential answer to this problem because they allow non-genetic information to be inherited across generations. But, there is a great deal of variation in epigenetic mechanisms. They are present in many taxa and multiple epigenetic mechanisms are proposed to affect develop ...
... Epigenetic processes are a potential answer to this problem because they allow non-genetic information to be inherited across generations. But, there is a great deal of variation in epigenetic mechanisms. They are present in many taxa and multiple epigenetic mechanisms are proposed to affect develop ...