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  • 1
    Online Resource
    Online Resource
    Princeton :Princeton University Press,
    Keywords: Electronic books.
    Description / Table of Contents: No detailed description available for "The Ecology and Evolution of Inducible Defenses".
    Type of Medium: Online Resource
    Pages: 1 online resource (400 pages)
    Edition: 1st ed.
    ISBN: 9780691228198
    DDC: 578.4/7
    Language: English
    Note: Cover Page -- Half-title Page -- Title Page -- Copyright Page -- Contents -- Acknowledgments -- List of Contributors -- Why Inducible Defenses? -- 1. Coping with Life as a Menu Option: Inducible Defenses of the Wild Parsnip -- 2. Adaptive Status of Localized and Systemic Defense Responses in Plants -- 3. Why Induced Defenses May Be Favored over Constitutive Strategies in Plants -- 4. Evolution of Induced Indirect Defense of Plants -- 5. Consumer-Induced Changes in Phytoplankton: Inducibility, Costs, Benefits, and the Impact on Grazers -- 6. The Immune System as an Inducible Defense -- 7. Kairomone-Induced Morphological Defenses in Rotifers -- 8. Predator-Induced Defenses in Ciliated Protozoa -- 9. Ecology and Evolution of Predator-Induced Behavior of Zooplankton: Depth Selection Behavior and Diel Vertical Migration -- 10. Inducible Defenses in Cladocera: Constraints, Costs, and Multipredator Environments -- 11. Predator-Induced Defense in Crucian Carp -- 12. Density-Dependent Consequences of Induced Behavior -- 13. Complex Biotic Environments, Coloniality, and Heritable Variation for Inducible Defenses -- 14. Developmental Strategies in Spatially Variable Environments: Barnacle Shell Dimorphism and Strategic Models of Selection -- 15. Evolution of Forager Responses to Inducible Defenses -- 16. Evolution of Reversible Plastic Responses: Inducible Defenses and Environmental Tolerance -- 17. The Evolution of Inducible Defenses: Current Ideas -- References -- Index.
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  • 2
    Keywords: Hochschulschrift
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (63 Blatt = 1,5 MB) , Illustrationen, Diagramme
    Language: German
    Note: Zusammenfassung in deutscher und englischer Sprache
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  • 3
    ISSN: 1432-1939
    Keywords: Predation ; Inducible defences ; Phenotypic plasticity ; Daphnia ; Neckteeth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Juvenile Daphnia pulex form neckteeth in reponse to chemicals released by predatory Chaoborus crystallinus larvae. Formation of neckteeth is strongest in the second instar followed by the third instar, whereas only small neckteeth are found in the first and fourth instar of experimental clones. Predation experiments showed that body-size-dependent vulnerability of animals without neckteeth to fourth instar C. crystallinus larvae matched the pattern of neckteeth formation over the four juvenile instars. Predation experiments on D. pulex of the same clone with neckteeth showed that vulnerability to C. crystallinus predation is reduced, and that the induced protection is correlated with the degree of neckteeth formation. The pattern of neckteeth formation in successive instars is probably adaptive, and it can be concluded that neckteeth are formed to different degrees in successive instars as an evolutionary compromise to balance prediation risk and protective costs.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillian Magazines Ltd.
    Nature 401 (1999), S. 60-63 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Predators are potent agents of natural selection in biological communities. Experimental studies have shown that the introduction of predators can cause rapid evolution of defensive morphologies and behaviours in prey and chemical defences in plants. Such defences may be constitutively ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 378 (1995), S. 483-485 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Predation is often important in the structuring of communities and populations5'6. Although theoretical studies7'8 have attempted to model the impact of predation as a selective force influencing genetic variability in prey populations, there have been few empirical studies of the direct impact of ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillian Magazines Ltd.
    Nature 412 (2001), S. 69-72 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The vertical migration of zooplankton into lower and darker water strata by day is generally explained by the avoidance of visually orienting predators, mainly fish; however, it is unclear why daily zooplankton migration has been maintained in fishless areas. In addition to predation, ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 81 (1994), S. 375-382 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 81 (1994), S. 375-382 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 9
    Publication Date: 2018-06-08
    Description: Differences in stress tolerance and reproductive traits may drive the competitive hierarchy between nonindigenous and indigenous species and turn the former ones into successful invaders. In the northern Baltic Sea, the non-indigenous Gammarus tigrinus is a recent invader of littoral ecosystems and now occupies comparable ecological niches as the indigenous G. zaddachi. In laboratory experiments on specimens collected between June and August 2009 around Tva¨rminne in southern Finland (59°500N/23°150E), the tolerances towards heat stress and hypoxia were determined for the two species using lethal time, LT50, as response variable. The brood size of the two species was also studied and some observations were made on maturation of juveniles. Gammarus tigrinus was more resistant to hypoxia and survived at higher temperatures than G. zaddachi. Brood size was also greater in G. tigrinus than in G. zaddachi and G. tigrinus matured at a smaller size and earlier than G. zaddachi. Hence, there are clear competitive advantages for the non-indigenous G. tigrinus compared to the indigenous G. zaddachi, and these may be further strengthened through ongoing environmental changes related to increased eutrophication and a warming climate in the Baltic Sea region.
    Type: Article , PeerReviewed
    Format: text
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  • 10
    Publication Date: 2019-07-16
    Description: Milleporidae are of high ecological and economic importance, as, together with the scleractinian corals, they belong to the main reef builders of tropical coral reefs. Coral reefs face severe threats mainly due to anthropogenic disturbance. Understanding their population structure and dynamics is crucial for any conservation effort. Here we report the first microsatellite loci for the Milleporidae. Eleven polymorphic markers were developed for the hydrozoan corals Millepora dichotoma from the Great Barrier Reef (Australia) and tested for amplification in M. dichotoma from the Red Sea (Egypt), as well as for Millepora platyphylla from the Pacific Ocean (Moorea, French Polynesia). All loci were variable with 4–15 alleles per locus. Nine loci were transferable between geographic regions and species. These are the first microsatellites for hydrozoan corals. They will provide valuable tools for characterizing the population structure and genetic diversity of the group thereby benefitting coral reef conservation.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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