One - Svet logike
... our own species, and merely hints at the promise Darwin sees in his view of life, ethics and politics come to the foreground in The Descent of Man. Here Darwin puts forward an evolutionary explanation of our ability to sense the difference between right and wrong, he suggests ways in which his natur ...
... our own species, and merely hints at the promise Darwin sees in his view of life, ethics and politics come to the foreground in The Descent of Man. Here Darwin puts forward an evolutionary explanation of our ability to sense the difference between right and wrong, he suggests ways in which his natur ...
Evolution Practice
... (0 pts) the constancy of species populations in spite of the production of far more o!spring than needed to maintain them. (1 pt) the greater survival and reproduction of organisms with favorable variations than of organisms with unfavorable variations. (0 pts) the strengthening and development of a ...
... (0 pts) the constancy of species populations in spite of the production of far more o!spring than needed to maintain them. (1 pt) the greater survival and reproduction of organisms with favorable variations than of organisms with unfavorable variations. (0 pts) the strengthening and development of a ...
Why the Gene Will Not Return* Elisabeth A. Lloyd
... At what levels of biological organization do interactions occur that make a difference to replicator success? There are a number of ways to study this question, including modeling, experimentation, and fieldwork,11 and various methods have been proposed over the years for identifying interactors.12 ...
... At what levels of biological organization do interactions occur that make a difference to replicator success? There are a number of ways to study this question, including modeling, experimentation, and fieldwork,11 and various methods have been proposed over the years for identifying interactors.12 ...
On our best behavior: optimality models in human behavioral ecology
... does different things. Werren appeals to a variety of ecological conditions (male and female reproductive contributions, male-male competition, constraints on jewel wasp mothers etc.) as proposed selection pressures acting on the female wasp’s strategy, and predicts how these will affect the resulti ...
... does different things. Werren appeals to a variety of ecological conditions (male and female reproductive contributions, male-male competition, constraints on jewel wasp mothers etc.) as proposed selection pressures acting on the female wasp’s strategy, and predicts how these will affect the resulti ...
Link - Conferences and Noncredit Programs
... Defining reptilian hibernation, as either an intrinsic physiological or purely behavioral phenomenon, has long been problematic. In part, this uncertainty has been due to the diversity of metabolic responses exhibited by reptiles during cold acclimation. Among snakes, the few species for which appro ...
... Defining reptilian hibernation, as either an intrinsic physiological or purely behavioral phenomenon, has long been problematic. In part, this uncertainty has been due to the diversity of metabolic responses exhibited by reptiles during cold acclimation. Among snakes, the few species for which appro ...
Evolutionary History and Adaptive Significance of Respiratory
... suited for gas exchange while immersed but not when emersed (Newell 1979). Most aquatic organisms use gills as the main site for gas exchange, and while gills function very well in water, they do not perform well when in air. The drop in gas exchange performance is primarily due to problems involved ...
... suited for gas exchange while immersed but not when emersed (Newell 1979). Most aquatic organisms use gills as the main site for gas exchange, and while gills function very well in water, they do not perform well when in air. The drop in gas exchange performance is primarily due to problems involved ...
Reconceptualising Evolution by Natural Selection
... change as opposed to a mere statistical effect of other causes, at what level this putative cause operates and whether it can be distinguished from drift. Borrowing tools from the causal modelling literature, I argue that natural selection is best conceived as a causal process resulting from individ ...
... change as opposed to a mere statistical effect of other causes, at what level this putative cause operates and whether it can be distinguished from drift. Borrowing tools from the causal modelling literature, I argue that natural selection is best conceived as a causal process resulting from individ ...
ENCYCLOPEDIA OF Evolution
... category of formal causes separate from the efficient causes. The idea that organisms are perfectly adapted to their environments predates evolutionary theory. This idea was central to natural theology in which the perfect fit of organism and environment was considered evidence of di ...
... category of formal causes separate from the efficient causes. The idea that organisms are perfectly adapted to their environments predates evolutionary theory. This idea was central to natural theology in which the perfect fit of organism and environment was considered evidence of di ...
Richardson and Chipman 2003
... constraints is to look at the phylogenetic distribution of characters (see ‘‘Constraints in a phylogenetic context’’ below). For example, Eberhard (2001, 2002) examined male sepsid flies and found that they have evolved moveable abdominal lobes, at least twice independently, in response to sexual se ...
... constraints is to look at the phylogenetic distribution of characters (see ‘‘Constraints in a phylogenetic context’’ below). For example, Eberhard (2001, 2002) examined male sepsid flies and found that they have evolved moveable abdominal lobes, at least twice independently, in response to sexual se ...
SICB 2009 Annual Meeting Abstracts
... A comparison of brain gene expression from black goby (Gobius niger) females and males with alternate mating phenotypes The black goby (Gobius niger) is a demersal spawning fish with females that deposit their eggs in a sheltered burrow in shallow marine waters. Territorial males provide parental ca ...
... A comparison of brain gene expression from black goby (Gobius niger) females and males with alternate mating phenotypes The black goby (Gobius niger) is a demersal spawning fish with females that deposit their eggs in a sheltered burrow in shallow marine waters. Territorial males provide parental ca ...
theodosius dobzhansky - National Academy of Sciences
... natural populations. Estimates of rates of mutation and accumulation of lethals were first published in 1941 (again in collaboration with Sewall Wright); estimates of the critical parameter Nm (the product of effective population size times migration rate) in natural populations appeared in 1942, 19 ...
... natural populations. Estimates of rates of mutation and accumulation of lethals were first published in 1941 (again in collaboration with Sewall Wright); estimates of the critical parameter Nm (the product of effective population size times migration rate) in natural populations appeared in 1942, 19 ...
Diversity in theWeapons of Sexual Selection: Horn Evolution in
... species have these huge weapons and which do not is the substrate on which their contests occur. Almost without exception, species with large horns fight over linear, or otherwise spatially restricted, resources. In some cases (e.g., in many of the dynastine “rhinoceros” beetles), it is branches of ...
... species have these huge weapons and which do not is the substrate on which their contests occur. Almost without exception, species with large horns fight over linear, or otherwise spatially restricted, resources. In some cases (e.g., in many of the dynastine “rhinoceros” beetles), it is branches of ...
Are Random Drift and Natural Selection - Philsci
... constant from one generation to the next (parent sampling), or whether the population is reduced in size (bottleneck). My suggestion that Beatty’s conceptions of “discriminate sampling” and “indiscriminate sampling” should be spelled out in terms of causal relevance is similar to Hodge’s (1987) posi ...
... constant from one generation to the next (parent sampling), or whether the population is reduced in size (bottleneck). My suggestion that Beatty’s conceptions of “discriminate sampling” and “indiscriminate sampling” should be spelled out in terms of causal relevance is similar to Hodge’s (1987) posi ...
Sources of inter- and intra-individual variation in basal metabolic
... Franco 2007 and references cited therein), indicating a between-individual genetic component of BMR. However, because the permanent differences between individuals could be attributed to environmental sources of variance, highly repeatable traits may not necessary be heritable (Merilä and Sheldon 20 ...
... Franco 2007 and references cited therein), indicating a between-individual genetic component of BMR. However, because the permanent differences between individuals could be attributed to environmental sources of variance, highly repeatable traits may not necessary be heritable (Merilä and Sheldon 20 ...
Limnephilid taxa revised by speciation traits
... Abstract. Speciation traits of paramere, paraproct and aedeagus were applied to find initial split criteria with fine structure analysis in order to prepare diverged trait matrices for delimiting phylogenetic incipient species of unsettled limnephilid taxa in the early stages of reproductive isolati ...
... Abstract. Speciation traits of paramere, paraproct and aedeagus were applied to find initial split criteria with fine structure analysis in order to prepare diverged trait matrices for delimiting phylogenetic incipient species of unsettled limnephilid taxa in the early stages of reproductive isolati ...
SICB 2009 Annual Meeting Abstracts
... A comparison of brain gene expression from black goby (Gobius niger) females and males with alternate mating phenotypes The black goby (Gobius niger) is a demersal spawning fish with females that deposit their eggs in a sheltered burrow in shallow marine waters. Territorial males provide parental ca ...
... A comparison of brain gene expression from black goby (Gobius niger) females and males with alternate mating phenotypes The black goby (Gobius niger) is a demersal spawning fish with females that deposit their eggs in a sheltered burrow in shallow marine waters. Territorial males provide parental ca ...
The Strength of Phenotypic Selection in Natural
... physiological traits. Most published selection studies were unreplicated and had sample sizes below 135 individuals, resulting in low statistical power to detect selection of the magnitude typically reported for natural populations. The absolute values of linear selection gradients FbF were exponent ...
... physiological traits. Most published selection studies were unreplicated and had sample sizes below 135 individuals, resulting in low statistical power to detect selection of the magnitude typically reported for natural populations. The absolute values of linear selection gradients FbF were exponent ...
The Strength of Phenotypic Selection in Natural Populations
... physiological traits. Most published selection studies were unreplicated and had sample sizes below 135 individuals, resulting in low statistical power to detect selection of the magnitude typically reported for natural populations. The absolute values of linear selection gradients FbF were exponent ...
... physiological traits. Most published selection studies were unreplicated and had sample sizes below 135 individuals, resulting in low statistical power to detect selection of the magnitude typically reported for natural populations. The absolute values of linear selection gradients FbF were exponent ...
Most Repeated Questions of Zoology
... 2010: “Darwin and Wallace worked under identical conditions but in different areas to develop the theory of natural selection”. Justify the statement 2010: Write an essay on possible origin of life. 2010: “Fossils provide some important evidences of evolution”. Discuss 2008: Given an account of Lama ...
... 2010: “Darwin and Wallace worked under identical conditions but in different areas to develop the theory of natural selection”. Justify the statement 2010: Write an essay on possible origin of life. 2010: “Fossils provide some important evidences of evolution”. Discuss 2008: Given an account of Lama ...
Rapid evolution of adaptive niche construction
... of this assay all cultures were performed side by side, minimizing cryptic differences in conditions. When replicating this assay (as in Fig. 2) we performed total replicates, that is independent experiments performed in different weeks. The key choice in our assay was the density to which bacteria ...
... of this assay all cultures were performed side by side, minimizing cryptic differences in conditions. When replicating this assay (as in Fig. 2) we performed total replicates, that is independent experiments performed in different weeks. The key choice in our assay was the density to which bacteria ...
Evolutionary Chance Mutation: A Defense of the - Philsci
... Wright et al. 1999, 2000; Sternberg 2002; Keller 2000), have questioned the Modern Synthesis’ claim that all genetic mutations occur by “chance” or at “random.” The present paper refines Millstein’s conceptual and empirical analysis of the old distinction between “random” and “directed” genetic muta ...
... Wright et al. 1999, 2000; Sternberg 2002; Keller 2000), have questioned the Modern Synthesis’ claim that all genetic mutations occur by “chance” or at “random.” The present paper refines Millstein’s conceptual and empirical analysis of the old distinction between “random” and “directed” genetic muta ...
Evolutionary Chance Mutation
... Wright et al. 1999, 2000; Sternberg 2002; Keller 2000), have questioned the Modern Synthesis’ claim that all genetic mutations occur by “chance” or at “random.” The present paper refines Millstein’s conceptual and empirical analysis of the old distinction between “random” and “directed” genetic muta ...
... Wright et al. 1999, 2000; Sternberg 2002; Keller 2000), have questioned the Modern Synthesis’ claim that all genetic mutations occur by “chance” or at “random.” The present paper refines Millstein’s conceptual and empirical analysis of the old distinction between “random” and “directed” genetic muta ...
Ernst Mayr (1904–2005) and the new philosophy of biology
... directly or indirectly reflect his own views. This situation will not change fundamentally in the near future, as Mary P. Winsor has recently observed: “Historians who try to evaluate Mayr’s contributions will face a peculiarly subtle task, not only because they will have to build upon Mayr’s own hi ...
... directly or indirectly reflect his own views. This situation will not change fundamentally in the near future, as Mary P. Winsor has recently observed: “Historians who try to evaluate Mayr’s contributions will face a peculiarly subtle task, not only because they will have to build upon Mayr’s own hi ...
Sympatric speciation in animals: the ugly duckling grows up
... However, the historical and phylogenetic data that might reveal whether the initial divergence between populations of pea aphids on the two hosts was sympatric or allopatric is presently absent. Instead, the emphasis in this system has been on identifying the ecological and genetic mechanisms of eco ...
... However, the historical and phylogenetic data that might reveal whether the initial divergence between populations of pea aphids on the two hosts was sympatric or allopatric is presently absent. Instead, the emphasis in this system has been on identifying the ecological and genetic mechanisms of eco ...