Mobility as an Emergent Property of Biological Organization: Insights
... move more to get the prey resources they need, whereas deer, who eat plants that are easy to find, do not need to move as far. But might there be something more to it than this? Perhaps some of the variation in mobility among species, or among populations within species, is related to differences in ...
... move more to get the prey resources they need, whereas deer, who eat plants that are easy to find, do not need to move as far. But might there be something more to it than this? Perhaps some of the variation in mobility among species, or among populations within species, is related to differences in ...
Reprint
... Diekmann et al. 1999). Most interesting is the possibility of ecologically mediated disruptive selection. In such situations, natural selection can drive the evolution of a trait to a value at which the ecological interactions generate disruptive selection endogenously, favoring evolutionary diversi ...
... Diekmann et al. 1999). Most interesting is the possibility of ecologically mediated disruptive selection. In such situations, natural selection can drive the evolution of a trait to a value at which the ecological interactions generate disruptive selection endogenously, favoring evolutionary diversi ...
video slide - Biology at Mott
... believed that species had remained unchanged since their creation • However, a few doubts about the permanence of species were beginning to arise ...
... believed that species had remained unchanged since their creation • However, a few doubts about the permanence of species were beginning to arise ...
a case study of Charles Darwin`s way of knowing
... brand him, and by association, his family as non-believers, they trusted each other. In fact, if Darwin had published his explanations of evolution in an earlier century, he may well have been called a heretic, and subject to the Inquisition. To advance his ideas on evolution it seemed he must wage ...
... brand him, and by association, his family as non-believers, they trusted each other. In fact, if Darwin had published his explanations of evolution in an earlier century, he may well have been called a heretic, and subject to the Inquisition. To advance his ideas on evolution it seemed he must wage ...
Name: Date: Period: ______ Natural Selection Predator VS. Prey
... We know from the fossil record that species change (evolve) over time. Darwin argued, and this has subsequently been confirmed, that the primary mechanism of adaptive evolutionary change is the process of natural selection. Given that evolutionary theory is the most important unifying principle in b ...
... We know from the fossil record that species change (evolve) over time. Darwin argued, and this has subsequently been confirmed, that the primary mechanism of adaptive evolutionary change is the process of natural selection. Given that evolutionary theory is the most important unifying principle in b ...
16Insect Evolutionary
... In sympatric speciation, divergent selection on its own must lead to reproductive isolation. It has long been realized that recombination rapidly breaks down associations between genes under selection and genes for mate choice, making sympatric speciation difficult (Felsenstein, 1981). Unsurprisingl ...
... In sympatric speciation, divergent selection on its own must lead to reproductive isolation. It has long been realized that recombination rapidly breaks down associations between genes under selection and genes for mate choice, making sympatric speciation difficult (Felsenstein, 1981). Unsurprisingl ...
Beaks of Finches Lab
... enable an animal to find food or attract mates better than other individuals can. If beneficial traits like these have a genetic basis and can be passed on to future generations, we refer to them ...
... enable an animal to find food or attract mates better than other individuals can. If beneficial traits like these have a genetic basis and can be passed on to future generations, we refer to them ...
Recent Evolutionary Theorizing About Economic Change
... mechanisms and relationships treated as causal are different, or at least appear to be. One could respond by arguing that, while the language may be different, in fact the substance of theories using “biological conceptions” and equilibrium theories is not very different. In particular, the theories ...
... mechanisms and relationships treated as causal are different, or at least appear to be. One could respond by arguing that, while the language may be different, in fact the substance of theories using “biological conceptions” and equilibrium theories is not very different. In particular, the theories ...
Different Evolutionary Paths to Complexity for Small and
... Meanwhile, there exists abundant experimental evidence that natural selection is the main cause of evolutionary change [13–15], including the spread of novel adaptive phenotypes [16, 17], in experimental populations. However, it is still possible that non-adaptive processes play a significant role i ...
... Meanwhile, there exists abundant experimental evidence that natural selection is the main cause of evolutionary change [13–15], including the spread of novel adaptive phenotypes [16, 17], in experimental populations. However, it is still possible that non-adaptive processes play a significant role i ...
The Origin of Species
... surface can result from slow continuous actions still operating today • Lyell’s principle of uniformitarianism states that the mechanisms of change are constant over time • This view strongly influenced Darwin’s thinking. It suggested that the Earth was much older than previously thought; and that s ...
... surface can result from slow continuous actions still operating today • Lyell’s principle of uniformitarianism states that the mechanisms of change are constant over time • This view strongly influenced Darwin’s thinking. It suggested that the Earth was much older than previously thought; and that s ...
- Wiley Online Library
... selection in speciation (Wallace, 1889). Consequently, reinforcement has been referred to as the Wallace effect (Grant, 1966). During the modern synthesis, Dobzhansky (1940) advocated for a role of reinforcement in the formation of reproductively isolating mechanisms, by arguing that maladaptive hyb ...
... selection in speciation (Wallace, 1889). Consequently, reinforcement has been referred to as the Wallace effect (Grant, 1966). During the modern synthesis, Dobzhansky (1940) advocated for a role of reinforcement in the formation of reproductively isolating mechanisms, by arguing that maladaptive hyb ...
Associate Program Faculty Notes (Standard)
... The result of these differences is that mitosis produces four genetically identical cells with the same number of chromosomes as the parent cell; meiosis produces four genetically different cells with half the number of chromosomes as the parent cell. Refer to p. 134 of the text. What would happen t ...
... The result of these differences is that mitosis produces four genetically identical cells with the same number of chromosomes as the parent cell; meiosis produces four genetically different cells with half the number of chromosomes as the parent cell. Refer to p. 134 of the text. What would happen t ...
processes shaping diversity
... Other types of mutations, such as genomic structural variation and GC-rich minisatellite mutations, fit neither of the above models. If we are interested in aspects of sequence evolution involving the possibility of several changes occurring at the same site, then we need more complex models of mutat ...
... Other types of mutations, such as genomic structural variation and GC-rich minisatellite mutations, fit neither of the above models. If we are interested in aspects of sequence evolution involving the possibility of several changes occurring at the same site, then we need more complex models of mutat ...
Predator-Prey
... phenotypic perspective but also from a genetic one. For example, studies of wild parsnip have shown not only that the various furanocoumarins produced by wild parsnip have different effects on different species of insect herbivores, but also that genetic correlations among these compounds may constr ...
... phenotypic perspective but also from a genetic one. For example, studies of wild parsnip have shown not only that the various furanocoumarins produced by wild parsnip have different effects on different species of insect herbivores, but also that genetic correlations among these compounds may constr ...
Ever Since Darwin - A Website About Stephen Jay Gould`s Essays
... Bethell takes issue with. Mindless nature weeding out the unfit is not the same, he argues, as conscious humans allowing individuals with certain desirable features to reproduce – and even if it were, more than a rhetorical claim of analogy would be required to prove it. The underlying importance of ...
... Bethell takes issue with. Mindless nature weeding out the unfit is not the same, he argues, as conscious humans allowing individuals with certain desirable features to reproduce – and even if it were, more than a rhetorical claim of analogy would be required to prove it. The underlying importance of ...
ageing Powerpoint
... • Huntington's chorea: a genetic, neurodegenerative disease caused by a highly penetrant dominant mutation. • 1941 Haldane: why has natural selection not acted to remove the Huntington's mutation from populations? • Average age of onset of Huntington's 35.5 years. • For much of the evolutionary hist ...
... • Huntington's chorea: a genetic, neurodegenerative disease caused by a highly penetrant dominant mutation. • 1941 Haldane: why has natural selection not acted to remove the Huntington's mutation from populations? • Average age of onset of Huntington's 35.5 years. • For much of the evolutionary hist ...
Rajon, E. and Masel, J. (2013)
... edges represent single mutational steps (Wagner, 2005, see Fig. 1). The number of new phenotypes accessible by a single mutation has two components (Masel and Trotter, 2010; Wagner, 2011). First, a population that occupies many nodes on the network of possible genotypes – i.e. that has high genetic ...
... edges represent single mutational steps (Wagner, 2005, see Fig. 1). The number of new phenotypes accessible by a single mutation has two components (Masel and Trotter, 2010; Wagner, 2011). First, a population that occupies many nodes on the network of possible genotypes – i.e. that has high genetic ...
natural selection
... are in the environment -- and hundreds are in our bodies. But for most of them, scientists have yet to determine whether they cause health problems.. John F. Wambaugh and colleagues note that the risks to human health of any given substance depend primarily on two factors: the potential hazards a ch ...
... are in the environment -- and hundreds are in our bodies. But for most of them, scientists have yet to determine whether they cause health problems.. John F. Wambaugh and colleagues note that the risks to human health of any given substance depend primarily on two factors: the potential hazards a ch ...
Charles Darwin, Alfred Russel Wallace, and the Evolution
... is focused on, what is, perhaps, the most fundamental area of disagreement between Darwin and Wallace: the evolution of humanity. Darwin argued that human evolution could be explained by natural selection, with sexual selection as a significant supplementary principle. Wallace always had doubts abou ...
... is focused on, what is, perhaps, the most fundamental area of disagreement between Darwin and Wallace: the evolution of humanity. Darwin argued that human evolution could be explained by natural selection, with sexual selection as a significant supplementary principle. Wallace always had doubts abou ...
On the Evolution of Premating Isolation after a Founder Event
... will decline in frequency if the probability of matings between common homozygotes is higher than the average of the probabilities of matings involving a common homozygote and a heterozygote. With n → ∞, the probability of matings between common homozygotes should be higher than the probability of m ...
... will decline in frequency if the probability of matings between common homozygotes is higher than the average of the probabilities of matings involving a common homozygote and a heterozygote. With n → ∞, the probability of matings between common homozygotes should be higher than the probability of m ...
Sexual reproduction, in one form
... studies, explanations for differences in mutation accumulation other than the presence or absence of sexual reproduction must also be considered, such as a more stringent ‘selection arena’37,38 during sexual reproduction, or differences in the effective sizes of sexual and asexual populations. Altog ...
... studies, explanations for differences in mutation accumulation other than the presence or absence of sexual reproduction must also be considered, such as a more stringent ‘selection arena’37,38 during sexual reproduction, or differences in the effective sizes of sexual and asexual populations. Altog ...
Darwin`s Dice: The Idea of Chance in the Thought of Charles Darwin
... his audience, friendly and unfriendly alike. Chance, at least in one important sense, means fortuity, and most people in Darwin’s day, and even now, could not accept a world in which fortuity played a guiding role in evolution.15 Yet Darwin believed fortuity was at the very core of modifications lea ...
... his audience, friendly and unfriendly alike. Chance, at least in one important sense, means fortuity, and most people in Darwin’s day, and even now, could not accept a world in which fortuity played a guiding role in evolution.15 Yet Darwin believed fortuity was at the very core of modifications lea ...
Evaluating Evidence of Psychological Adaptation
... reproduce at the moment (Reeve & Sherman, 1993). If you learn to eat a new food that increases your personal health and fertility, this new food-eating behavior could be considered an adaptation. However, most evolutionary biologists define adaptations as the historical end products of the process o ...
... reproduce at the moment (Reeve & Sherman, 1993). If you learn to eat a new food that increases your personal health and fertility, this new food-eating behavior could be considered an adaptation. However, most evolutionary biologists define adaptations as the historical end products of the process o ...
How Can Evolutionary Psychology Successfully Explain Personality
... Any form of deception, however, creates selection for adaptations in signal receivers to detect deception and to discount dishonest signals. Costly signaling theory provides an evolutionary framework for understanding some forms of individual differences (McAndrew, 2002; Miller, 2000, 2007; Zahavi, ...
... Any form of deception, however, creates selection for adaptations in signal receivers to detect deception and to discount dishonest signals. Costly signaling theory provides an evolutionary framework for understanding some forms of individual differences (McAndrew, 2002; Miller, 2000, 2007; Zahavi, ...