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Scientific American
... ago the seas held all the bizarre creatures fossilized in the Burgess Shale (and popularized two decades ago by Stephen Jay Gould in his book Wonderful Life). Many of those animals were evolutionary dead ends, but a few were the progenitors of every animal alive today. When Charles Darwin published ...
... ago the seas held all the bizarre creatures fossilized in the Burgess Shale (and popularized two decades ago by Stephen Jay Gould in his book Wonderful Life). Many of those animals were evolutionary dead ends, but a few were the progenitors of every animal alive today. When Charles Darwin published ...
Reprint (1.8MB PDF) - Litchman-Klausmeier Lab
... between species with distinct trait values may be particularly sensitive to rapid evolution. If individual species are capable of shifting their trait values in response to changing environments they may closely track the temporally varying optimum, preempting any newly opened niches. For example, A ...
... between species with distinct trait values may be particularly sensitive to rapid evolution. If individual species are capable of shifting their trait values in response to changing environments they may closely track the temporally varying optimum, preempting any newly opened niches. For example, A ...
Climate and Mammals - Stanford University
... As connectivity between populations declines to zero, each population begins to diverge along independent evolutionary trajectories. Prolonged environmental trends may result in alteration within lineages, usually recognized in the fossil record by morphologic change (Benton & Pearson 2001) and popu ...
... As connectivity between populations declines to zero, each population begins to diverge along independent evolutionary trajectories. Prolonged environmental trends may result in alteration within lineages, usually recognized in the fossil record by morphologic change (Benton & Pearson 2001) and popu ...
Speciation by Natural and Sexual Selection: Models and Experiments.
... disequilibrium, D, between the two loci among zygotes. In a random mating population with no natural selection, D evolves to a value of 0. At the other extreme, a value of D of one-fourth represents two populations that are completely reproductively isolated. (For those who would prefer to think abo ...
... disequilibrium, D, between the two loci among zygotes. In a random mating population with no natural selection, D evolves to a value of 0. At the other extreme, a value of D of one-fourth represents two populations that are completely reproductively isolated. (For those who would prefer to think abo ...
Document
... recombination. It may accelerate speciation via adaptive introgression or cause near-instantaneous speciation by allopolyploidization. It may have multiple effects at different stages and in different spatial contexts within a single speciation event. We offer a perspective on the context and evolut ...
... recombination. It may accelerate speciation via adaptive introgression or cause near-instantaneous speciation by allopolyploidization. It may have multiple effects at different stages and in different spatial contexts within a single speciation event. We offer a perspective on the context and evolut ...
16Insect Evolutionary
... will only encounter mates who have made a similar host choice. The classic example is Rhagoletis pomonella, in which males patrol host fruits and wait for and court ovipositing females. Release experiments have shown that apple and hawthorn-associated host races show a strong preference for alightin ...
... will only encounter mates who have made a similar host choice. The classic example is Rhagoletis pomonella, in which males patrol host fruits and wait for and court ovipositing females. Release experiments have shown that apple and hawthorn-associated host races show a strong preference for alightin ...
Recent Evolutionary Theorizing About Economic Change
... Any “optimizing” characteristics of what exists therefore must be understood as local and myopic, associated with the particular equilibrium that happens to obtain. The heart of any explanation of extant living forms thus must be evolutionary analysis of how the particular equilibrium, and not a dif ...
... Any “optimizing” characteristics of what exists therefore must be understood as local and myopic, associated with the particular equilibrium that happens to obtain. The heart of any explanation of extant living forms thus must be evolutionary analysis of how the particular equilibrium, and not a dif ...
NEO-DARWINISM: A LOOK AT THE ALLEGED GENETIC
... deoxyribonucleic acid (DNA) and its function in sexual reproduction, he could see a great deal of the mystery of life unraveling before his very eyes. Some scientists suggested that they had the answers as to how variation and change occurred. It was done, they said, by genetic mutations. Many genet ...
... deoxyribonucleic acid (DNA) and its function in sexual reproduction, he could see a great deal of the mystery of life unraveling before his very eyes. Some scientists suggested that they had the answers as to how variation and change occurred. It was done, they said, by genetic mutations. Many genet ...
evolutionary implications of the form of predator generalization for
... provides a strongest response, with increasing deviation from that stimulus producing weaker responses. Ghirlanda and Enquist (2003) argue that such generalization behaviors are characteristic of changes in stimulation that involve a rearrangement of a constant total amount of stimulation of the sen ...
... provides a strongest response, with increasing deviation from that stimulus producing weaker responses. Ghirlanda and Enquist (2003) argue that such generalization behaviors are characteristic of changes in stimulation that involve a rearrangement of a constant total amount of stimulation of the sen ...
Evolution_Ch7_transmittal_to_PE_Aug3
... 3. Choose a trait that you wish to favour, such as large size, a particular colour, or sweetness. 4. Identify individuals that exhibit the favoured trait most strongly. 5. Breed only these individuals to produce the next generation of individuals. 6. Repeat Steps 4 and 5 over many generations. In mo ...
... 3. Choose a trait that you wish to favour, such as large size, a particular colour, or sweetness. 4. Identify individuals that exhibit the favoured trait most strongly. 5. Breed only these individuals to produce the next generation of individuals. 6. Repeat Steps 4 and 5 over many generations. In mo ...
Hybridization and speciation
... recombination. It may accelerate speciation via adaptive introgression or cause near-instantaneous speciation by allopolyploidization. It may have multiple effects at different stages and in different spatial contexts within a single speciation event. We offer a perspective on the context and evolut ...
... recombination. It may accelerate speciation via adaptive introgression or cause near-instantaneous speciation by allopolyploidization. It may have multiple effects at different stages and in different spatial contexts within a single speciation event. We offer a perspective on the context and evolut ...
Foresight in cultural evolution. Biology and
... creator who has supernatural powers of clairvoyance. Darwin’s inestimable contribution to science was to explain this apparently intentionally-designed adaptation and complexity as the product of a blind, undirected process of natural selection, sexual selection and other non-teleological processes. ...
... creator who has supernatural powers of clairvoyance. Darwin’s inestimable contribution to science was to explain this apparently intentionally-designed adaptation and complexity as the product of a blind, undirected process of natural selection, sexual selection and other non-teleological processes. ...
Unit VIII - S2TEM Centers SC
... Site contains handouts, answer sheets, etc. If the science department does not have graphing calculators, they can usually be borrowed from Math departments. ...
... Site contains handouts, answer sheets, etc. If the science department does not have graphing calculators, they can usually be borrowed from Math departments. ...
Darwinian foundations for evolutionary economics Stoelhorst, JW
... conceptualizations of its explanantia. It should be noted that different ways of generalizing Darwinian explanantia have been proposed in the literature, which shows that the project of generalizing Darwinism is not yet complete (Stoelhorst and Hensgens 2006). Here Campbell’s (1960; 1965) conceptual ...
... conceptualizations of its explanantia. It should be noted that different ways of generalizing Darwinian explanantia have been proposed in the literature, which shows that the project of generalizing Darwinism is not yet complete (Stoelhorst and Hensgens 2006). Here Campbell’s (1960; 1965) conceptual ...
Hybridization and adaptive radiation
... many cases involve taxa of ADAPTIVE RADIATIONS . Evidence has been found in most genetic studies of adaptive radiations, including Darwin’s finches [29], Hawaiian picturewinged fruit flies [30], Hawaiian crickets [31] and African cichlid fish [24,25], among others [32 –34]. Hybridization is also par ...
... many cases involve taxa of ADAPTIVE RADIATIONS . Evidence has been found in most genetic studies of adaptive radiations, including Darwin’s finches [29], Hawaiian picturewinged fruit flies [30], Hawaiian crickets [31] and African cichlid fish [24,25], among others [32 –34]. Hybridization is also par ...
TEACHING EVOLUTION WITH PALENTOLOGICAL DATA: A WEB RESOURCE FOR PROFESSIONAL EDUCATORS
... theory; however, only recently have these studies been aimed at determining how evolution is misunderstood by the public. Research at colleges and universities across the country has consistently documented persistent shortfalls in student comprehension and retention of fundamental Darwinian concept ...
... theory; however, only recently have these studies been aimed at determining how evolution is misunderstood by the public. Research at colleges and universities across the country has consistently documented persistent shortfalls in student comprehension and retention of fundamental Darwinian concept ...
Scientific American UK Edition
... ago the seas held all the bizarre creatures fossilized in the Burgess Shale (and popularized two decades ago by Stephen Jay Gould in his book Wonderful Life). Many of those animals were evolutionary dead ends, but a few were the progenitors of every animal alive today. When Charles Darwin published ...
... ago the seas held all the bizarre creatures fossilized in the Burgess Shale (and popularized two decades ago by Stephen Jay Gould in his book Wonderful Life). Many of those animals were evolutionary dead ends, but a few were the progenitors of every animal alive today. When Charles Darwin published ...
Using new tools to solve an old problem: the evolution of
... for a higher reproductive rate, compared with equivalently sized non-endotherms [13,16,17]. Additionally, the high capacity for aerobic metabolism seen in endotherms enables them to sustain high levels of activity, with evident ecological benefits such as increased capability to search for food and ...
... for a higher reproductive rate, compared with equivalently sized non-endotherms [13,16,17]. Additionally, the high capacity for aerobic metabolism seen in endotherms enables them to sustain high levels of activity, with evident ecological benefits such as increased capability to search for food and ...
Myth: That Darwin and Haeckel were Complicit in Nazi Biology
... wrote Haeckel to say that "I am delighted that so distinguished a naturalist should confirm & expound my views; and I can clearly see that you are one of the few who clearly understands Natural Selection." 4 Their initial correspondence led to an enduring friendship, with Haeckel visiting Darwin sev ...
... wrote Haeckel to say that "I am delighted that so distinguished a naturalist should confirm & expound my views; and I can clearly see that you are one of the few who clearly understands Natural Selection." 4 Their initial correspondence led to an enduring friendship, with Haeckel visiting Darwin sev ...
Lecture 1 introduction-2011
... • Believed that these changes were caused by total extinction resulted from catastrophes akin to the Noachian Deluge, followed by successive creations of new species • We now know that these abrupt changes are largely due to unconformities or missing record • Catastrophism has not been totally aband ...
... • Believed that these changes were caused by total extinction resulted from catastrophes akin to the Noachian Deluge, followed by successive creations of new species • We now know that these abrupt changes are largely due to unconformities or missing record • Catastrophism has not been totally aband ...
Theory Evolution Study Guide Answers Key
... answer key weebly our biology class - holt mcdougal biology principles of evolution study guide b answer key study guide b section 10 3 theory of natural principles of evolution study guide b, chapter 15 and 16 study guide answers - modern biology study guide answer key 3 population genetics is the ...
... answer key weebly our biology class - holt mcdougal biology principles of evolution study guide b answer key study guide b section 10 3 theory of natural principles of evolution study guide b, chapter 15 and 16 study guide answers - modern biology study guide answer key 3 population genetics is the ...
Ch 13
... • Reproductive isolation is the condition in which two populations of the same species do not breed with one another because of their geographic separation. ...
... • Reproductive isolation is the condition in which two populations of the same species do not breed with one another because of their geographic separation. ...
EvoDevo and niche construction: building bridges
... to fit into the environment’s lock, both ecological developmental biology and niche construction see interactions between them. Niche construction emphasizes the ability of the organism to alter its environment; eco-devo emphasizes the ability of the environment to alter the developing organism. Bot ...
... to fit into the environment’s lock, both ecological developmental biology and niche construction see interactions between them. Niche construction emphasizes the ability of the organism to alter its environment; eco-devo emphasizes the ability of the environment to alter the developing organism. Bot ...
PDF
... causation for the rest of this article, following the terminology by Laland and colleagues (Laland et al. 2015), although I note that Laland (2004) has also called this “cyclical causation” in one of his previous papers (Laland 2004; Dawkins 2004). ...
... causation for the rest of this article, following the terminology by Laland and colleagues (Laland et al. 2015), although I note that Laland (2004) has also called this “cyclical causation” in one of his previous papers (Laland 2004; Dawkins 2004). ...
Punctuated equilibrium
Punctuated equilibrium (also called punctuated equilibria) is a theory in evolutionary biology which proposes that once species appear in the fossil record they will become stable, showing little net evolutionary change for most of their geological history. This state is called stasis. When significant evolutionary change occurs, the theory proposes that it is generally restricted to rare and geologically rapid events of branching speciation called cladogenesis. Cladogenesis is the process by which a species splits into two distinct species, rather than one species gradually transforming into another. Punctuated equilibrium is commonly contrasted against phyletic gradualism, the belief that evolution generally occurs uniformly and by the steady and gradual transformation of whole lineages (called anagenesis). In this view, evolution is seen as generally smooth and continuous.In 1972, paleontologists Niles Eldredge and Stephen Jay Gould published a landmark paper developing their theory and called it punctuated equilibria. Their paper built upon Ernst Mayr's model of geographic speciation, I. Michael Lerner's theories of developmental and genetic homeostasis, as well as their own empirical research. Eldredge and Gould proposed that the degree of gradualism commonly attributed to Charles Darwin is virtually nonexistent in the fossil record, and that stasis dominates the history of most fossil species.