If it is still true that more than 80% of the ornithologists in North America are primarily interested or engaged in ecological studies on birds (J. R. King and W. J. Bock, Final Report of the Workshop on a National Plan For Ornithology, 1978), then Volume 3 of Current Orni thology is preadapted for their consideration. All but one article in this volume are somehow concerned with the ecological aspects of the bi ology of birds. Variation in the scope of topical coverage is relatively broad, and includes conservation, reproduction, behavior, community structure, and evolutionary ecology. Three…mehr
If it is still true that more than 80% of the ornithologists in North America are primarily interested or engaged in ecological studies on birds (J. R. King and W. J. Bock, Final Report of the Workshop on a National Plan For Ornithology, 1978), then Volume 3 of Current Orni thology is preadapted for their consideration. All but one article in this volume are somehow concerned with the ecological aspects of the bi ology of birds. Variation in the scope of topical coverage is relatively broad, and includes conservation, reproduction, behavior, community structure, and evolutionary ecology. Three reviews concern the pervasive effects of man and industry on various bird populations of the world. Risebrough provides a de tailed description of the relationships between pesticides and bird pop ulations. Morrison ass es ses aspects of bird population numbers as in dicators of environmental change, and Temple outlines current research on endangered species. The broad spectrum of reproductive ecology of birds is variously treated in this volume. Jehl and Murray explore sexual selection and some of the resulting complexities in the evolution of sexual size di morphism, primarily in shorebirds. Lawton and Lawton are concerned with the relationships between social behavior and breeding systems in which variation is found in the age at which reproduction is first undertaken. Oring examines the wide-ranging variation in polyandrous breeding systems in birds, while Rohwer is concerned with adoption versus infanticide in birds, and their relationships to reproductive fit ness.Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
1 The Evolution of Normal and Reverse Sexual Size Dimorphism in Shorebirds and Other Birds.- 1. Introduction.- 2. Methods.- 3. The Shorebirds.- 4. Patterns of Size Dimorphism.- 5. Theories Pertaining to the Evolution of Sexual Size Dimorphism.- 6. A General Theory for the Evolution of Sexual Size Dimorphism.- 7. Effects of Ecological Factors on Size Dimorphism.- 8. Sexual Size Dimorphism in Other Taxa.- 9. Future Research.- 10. Conclusions.- References.- 2 Bird Songs and Avian Systematics.- 1. Introduction.- 2. Bird Song and Species Problems.- 3. Experimental Tests of Species Distinctiveness.- 4. Bird Songs and the Phylogeny of Speciation.- 5. Discussion.- References.- 3 Social Dominance, Mating and Spacing Systems, Female Fecundity, and Vocal Dialects in Captive and Free-Ranging Brown-Headed Cowbirds.- 1. Introduction.- 2. Studies of Captive Cowbirds.- 3. Discussion of the Aviary Results and of Recent Field Studies on Mating and Spacing Patterns.- 4. Field Studies of Phenomena That Show Little Geographic Variation.- 5. Field Studies of Phenomena That Vary Geographically.- 6. Concluding Remarks.- References.- 4 Heterochrony, Deferred Breeding, and Avian Sociality.- 1. Introduction.- 2. Advantages of Delayed Somatic Maturation.- 3. Evidence of Paedomorphosis in the Class Aves.- 4. Heterochronic Trends in the Corvids.- 5. Ecological and Evolutionary Significance of Avian Heterochrony.- References.- 5 Avian Frugivory and Seed Dispersal in Eastern North America.- 1. Introduction.- 2. Methods.- 3. Bird-Dispersed Plants and Some of Their Characteristics.- 4. Avian Frugivores and Some of Their Characteristics.- 5. Effects of Dispersal and Frugivory on Plant Populations.- 6. Effects of Frugivory on Bird Populations.- 7. Plant Community Comparisons.- 8. Bird Community Comparisons.- 9. Summary.- References.- 6 Competition in Migrant Birds in the Nonbreeding Season.- 1. Introduction.- 2. Intraspecific Competition.- 3. Interspecific Competition.- 4. Conclusions.- References.- 7 Avian Polyandry.- 1. Introduction.- 2. Classical Polyandry.- 3. Evolution of Classical Polyandry.- 4. Did Polyandry Evolve from Monogamy via a Multi-Clutch Polygamy Stage?.- 5. Cooperative Polyandry.- 6. Theories on the Evolution of Cooperative Polyandry.- 7. Birds Improperly Considered Polyandrous.- 8. Conclusion.- References.- 8 Selection for Adoption Versus Infanticide by Replacement "Mates" in Birds.- 1. Introduction.- 2. A Review of Adoption and Infanticide in Birds.- 3. A Prospective Analysis for Birds.- 4. Alternate Hypotheses for Adoption in Birds.- 5. Adaptive or Maladaptive? A Review of Cases.- 6. Infanticide in Other Contexts.- References.- 9 Pesticides and Bird Populations.- 1. Introduction.- 2. Biocidal Chemicals.- 3. Impacts upon Bird Populations.- 4. Prospects for the Future.- References.- 10 Bird Populations as Indicators of Environmental Change.- 1. Introduction.- 2. Quantity of Habitat.- 3. Quality of Habitat.- 4. Summary and Conclusions.- References.- 11 The Problem of Avian Extinctions.- 1. Introduction.- 2. The Magnitude of the Endangered Bird Problem.- 3. Causes of Declines in Avian Populations.- 4. How to Deal with Declining and Endangered Birds.- 5. Status of Efforts to Prevent Extinctions.- References.- Author Index.- Bird Name Index.
1 The Evolution of Normal and Reverse Sexual Size Dimorphism in Shorebirds and Other Birds.- 1. Introduction.- 2. Methods.- 3. The Shorebirds.- 4. Patterns of Size Dimorphism.- 5. Theories Pertaining to the Evolution of Sexual Size Dimorphism.- 6. A General Theory for the Evolution of Sexual Size Dimorphism.- 7. Effects of Ecological Factors on Size Dimorphism.- 8. Sexual Size Dimorphism in Other Taxa.- 9. Future Research.- 10. Conclusions.- References.- 2 Bird Songs and Avian Systematics.- 1. Introduction.- 2. Bird Song and Species Problems.- 3. Experimental Tests of Species Distinctiveness.- 4. Bird Songs and the Phylogeny of Speciation.- 5. Discussion.- References.- 3 Social Dominance, Mating and Spacing Systems, Female Fecundity, and Vocal Dialects in Captive and Free-Ranging Brown-Headed Cowbirds.- 1. Introduction.- 2. Studies of Captive Cowbirds.- 3. Discussion of the Aviary Results and of Recent Field Studies on Mating and Spacing Patterns.- 4. Field Studies of Phenomena That Show Little Geographic Variation.- 5. Field Studies of Phenomena That Vary Geographically.- 6. Concluding Remarks.- References.- 4 Heterochrony, Deferred Breeding, and Avian Sociality.- 1. Introduction.- 2. Advantages of Delayed Somatic Maturation.- 3. Evidence of Paedomorphosis in the Class Aves.- 4. Heterochronic Trends in the Corvids.- 5. Ecological and Evolutionary Significance of Avian Heterochrony.- References.- 5 Avian Frugivory and Seed Dispersal in Eastern North America.- 1. Introduction.- 2. Methods.- 3. Bird-Dispersed Plants and Some of Their Characteristics.- 4. Avian Frugivores and Some of Their Characteristics.- 5. Effects of Dispersal and Frugivory on Plant Populations.- 6. Effects of Frugivory on Bird Populations.- 7. Plant Community Comparisons.- 8. Bird Community Comparisons.- 9. Summary.- References.- 6 Competition in Migrant Birds in the Nonbreeding Season.- 1. Introduction.- 2. Intraspecific Competition.- 3. Interspecific Competition.- 4. Conclusions.- References.- 7 Avian Polyandry.- 1. Introduction.- 2. Classical Polyandry.- 3. Evolution of Classical Polyandry.- 4. Did Polyandry Evolve from Monogamy via a Multi-Clutch Polygamy Stage?.- 5. Cooperative Polyandry.- 6. Theories on the Evolution of Cooperative Polyandry.- 7. Birds Improperly Considered Polyandrous.- 8. Conclusion.- References.- 8 Selection for Adoption Versus Infanticide by Replacement "Mates" in Birds.- 1. Introduction.- 2. A Review of Adoption and Infanticide in Birds.- 3. A Prospective Analysis for Birds.- 4. Alternate Hypotheses for Adoption in Birds.- 5. Adaptive or Maladaptive? A Review of Cases.- 6. Infanticide in Other Contexts.- References.- 9 Pesticides and Bird Populations.- 1. Introduction.- 2. Biocidal Chemicals.- 3. Impacts upon Bird Populations.- 4. Prospects for the Future.- References.- 10 Bird Populations as Indicators of Environmental Change.- 1. Introduction.- 2. Quantity of Habitat.- 3. Quality of Habitat.- 4. Summary and Conclusions.- References.- 11 The Problem of Avian Extinctions.- 1. Introduction.- 2. The Magnitude of the Endangered Bird Problem.- 3. Causes of Declines in Avian Populations.- 4. How to Deal with Declining and Endangered Birds.- 5. Status of Efforts to Prevent Extinctions.- References.- Author Index.- Bird Name Index.
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