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  • 1
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Ecological risk assessment. ; Environmental monitoring. ; Coastal ecology. ; Electronic books.
    Description / Table of Contents: Detecting Ecological Impacts: Concepts and Applications in Coastal Habitats focuses on crucial aspects of detecting local and regional impacts that result from human activities. Detection and characterization of ecological impacts require scientific approaches that can reliably separate the effects of a specific anthropogenic activity from those of other processes. This fundamental goal is both technically and operationally challenging. Detecting Ecological Impacts is devoted to the conceptual and technical underpinnings that allow for reliable estimates of ecological effects caused by human activities. An international team of scientists focuses on the development and application of scientific tools appropriate for estimating the magnitude and spatial extent of ecological impacts. The contributors also evaluate our current ability to forecast impacts. Some of the scientific, legal, and administrative constraints that impede these critical tasks also are highlighted. Coastal marine habitats are emphasized, but the lessons and insights have general application to all ecological systems.
    Type of Medium: Online Resource
    Pages: 1 online resource (423 pages)
    Edition: 1st ed.
    ISBN: 9780080504070
    DDC: 574.5/2638
    Language: English
    Note: Front Cover -- Detecting Ecological Impacts: Concepts and Applications in Coastal Habitats -- Copyright Page -- Contents -- Contributors -- Acknowledgments -- Preface -- SECTION I: AN INTRODUCTION TO ECOLOGICAL IMPACT ASSESSMENT PRINCIPLES AND GOALS -- Chapter 1. Detecting Ecological Impacts Caused by Human Activities -- The Need for Field Assessments -- The (In-)Adequacy of Existing Field Assessment Designs -- The Organization of This Book -- References -- Chapter 2. Goals in Environmental Monitoring -- A Case for Confidence Intervals -- Discussion -- References -- Chapter 3. Criteria for Selecting Marine Organisms in Biomonitoring Studies -- What Should an "Indicator" Indicate? -- Conclusions -- References -- Chapter 4. Impacts on Soft-Sediment Macrofauna: The Effects of Spatial Variation on Temporal Trends -- Methods -- Results -- Discussion -- References -- Chapter 5. Scalable Decision Criteria for Environmental Impact Assessment: Effect Size,Type I, and Type II Errors -- Components of a Decision -- Problems with Traditional Decisions -- New Decision Rules -- Advantages of Liberating α -- Some Problems with a Variable α -- Summary -- References -- SECTION II: IMPROVING FIELD ASSESSMENTS OF LOCAL IMPACTS BEFORE-AFTER-CONTROL-IMPACT DESIGNS -- Chapter 6. Detection of Environmental Impacts: Natural Variability, Effect Size, and Power Analysis -- Methods -- Results -- Discussion -- References -- Chapter 7. Problems in the Analysis of Environmental Monitoring Data -- Before-After Studies -- Before-After-Control-Impact Paired Series Designs -- Causal Uncertainty -- Discussion -- References -- Chapter 8. Estimating the Size of an Effect from a Before-After-Control-Impact Paired Series Design: The Predictive Approach Applied to a Power Plant Study -- Background on the Example Data Set -- The Standard Approach-The Underlying Model and Implications. , Difficulties with the Standard Approach -- An Alternative: The Predictive Approach -- Discussion -- References -- Chapter 9. On Beyond BACI: Sampling Designs That Might Reliably Detect Environmental Disturbances -- Problems with Current Sampling Designs -- Asymmetrical Sampling Design to Detect Environmental Impacts -- Patterns in Analyses to Detect Environmental Impacts -- Discussion -- References -- SECTION III: EXTENSION OF LOCAL IMPACTS TO LARGER SCALE CONSEQUENCES -- Chapter 10. Determining the Spatial Extent of Ecological Impacts Caused by Local Anthropogenic Disturbances in Coastal Marine Habitats -- Spatial Relationships among Physical and Ecological Variables Following a Local Disturbance -- Life-History Attributes and the Dispersal of Ecological Impacts -- Conclusions -- References -- Chapter 11. Predicting the Scale of Marine Impacts: Understanding Planktonic Links between Populations -- Larval Transport Processes -- Larval Attributes Contributing to Dispersal -- The Relative Importance of Hydrodynamics and Biology -- Requirements for Individual Monitoring or EIA Programs -- Conclusions -- References -- Chapter 12. Influence of Pollutants and Oceanography on Abundance and Deformities of Wild Fish Larvae -- Oceanographic Features and the Accumulation of Fish Larvae and Pollutants -- Abundance Patterns of Fish Larvae in Plumes -- Vulnerability of Fish Larvae to Pollutants -- Deformities in Wild Larvae from Plumes -- Caveats to Quantifying Deformities in Wild Fish Larvae and Other Approaches -- Discussion -- References -- Chapter 13. Consequences for Adult Fish Stocks of Human-Induced Mortality on Immatures -- Modeling Compensatory Processes in Fish Populations -- Predicted Consequences of Increased Immature Mortality -- Impact on Predators -- Discussion -- References. , SECTION IV: THE LINK BETWEEN ADMINISTRATIVE ENVIRONMENTAL IMPACT STUDIES AND WELL-DESIGNED FIELD ASSESSMENTS -- Chapter 14. The Art and Science of Administrative Environmental Impact Assessment -- Administrative Environmental Review -- Scientific Data Collection and Analyses in Environmental Impact Reports -- The Need for Better Scientific Feedback in the EIA Process -- Conclusions -- References -- Chapter 15. On the Adequacy and Improvement of Marine Benthic Pre-Impact Surveys: Examples from the Gulf of Mexico Outer Continental Shelf -- Structure of the Review -- Review Findings -- Discussion -- Conclusions -- References -- Chapter 16. Organizational Constraints on Environmental Impact Assessment Research -- The Opportunity -- Project Uncertainties -- Institutional Uncertainties -- Conclusions and Lessons -- References -- Chapter 17. Administrative, Legal, and Public Policy Constraints on Environmental Impact Assessment -- Resolving Conflict through Comprehensive Environmental Assessment: The U.S. Offshore Oil Leasing Program -- The Limitations of Public Environmental Assessment -- Conclusion -- References -- Chapter 18. Predicted and Observed Environmental Impacts: Can We Foretell Ecological Change? -- The San Onofre Nuclear Generating Station -- Predicted Impacts -- The Impacts That Were Detected -- Predicted Effects versus "Reality" Do We Get It Right? -- Conclusions and Recommendations -- References -- Glossary of Acronyms, Assessment Designs, and Organizations -- Contributor Biographies -- Author Index -- Subject Index.
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  • 2
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Patterns of prey size selectivity were quantified in the field for two species of marine microcarnivorous fish, Embiotoca jacksoni and Embiotoca lateralis (Embiotocidae) to test Scott and Murdoch's (1983) size spectrum hypothesis. Two mechanisms accounted for observed selectivity: the relative size of a fish in relation to its prey, and the type of foraging behavior used. Juvenile E. jacksoni were gape limited and newborn individuals achieved highest selectivity for the smallest prey size by using a visual picking foraging strategy. As young E. jacksoni grew, highest preference shifted to the next larger prey sizes. When E. jacksoni reached adulthood, the principal mode of foraging changed from visual picking to relatively indiscriminant winnowing behavior. The shift in foraging behavior by adults was accompanied by a decline in overall preference for prey size; sizes were taken nearly in proportion to their relative abundance. Adult E. lateralis retained a visual picking strategy and achieved highest selectivity for the largest class of prey. These differences in selectivity patterns by adult fish were not explained by gape-limination since adults of both species could ingest the largest prey items available to them. These results support Scott and Murdoch's (1983) hypothesis that the qualitative pattern of size selectivity depends largely on the range of available prey sizes relative to that a predator can effectively harvest.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1939
    Keywords: Key words Post-settlement processes ; Competition ; Recruitment ; Settlement ; Dascyllus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Spatial patterns of settlement and abundance of older life stages were examined for three species of damselfish in the genus Dascyllus by monitoring natural colonization of standard amounts of initially empty juvenile microhabitat (anemones for D. trimaculatus; branching coral for D. flavicaudus and D. aruanus) transplanted to a series of sites within lagoons of Moorea, French Polynesia. Large spatial differences in larval colonization were observed, which were temporally consistent but different among the species. At the whole-island scale, D. trimaculatus settled primarily on the northern shore, while settlement of the other two species was greatest at the southern end. The three species also showed different patterns of settlement within lagoons: D. aruanus settled mainly nearer to shore, D. flavicaudus primarily on offshore lagoon portions and D. trimaculatus colonized equally across the lagoons. Among sites around the island, the relative abundance of older juveniles after 10 months was a curvilinear function of the relative abundance of settlers for two species (D. trimaculatus and D. flavicaudus). There was no relationship between patterns of settlement and abundance of older juveniles for D. aruanus, although juvenile abundance was inversely related to that of juvenile D. flavicaudus. At the within-lagoon scale, settlement mirrored almost exactly the relative abundance of older lifestages of D. trimaculatus and D. flavicaudus, whereas there was just a qualitative match for D. aruanus. A competition experiment revealed that juvenile D. flavicaudus had a greater effect on population growth of D. aruanus than vice versa, and this mechanism helped explain why the modification of settlement patterns was greatest in D. aruanus. Interspecific variation in abundance of older stages was shaped to differing extents by both patterns of larval delivery and subsequent density-dependent processes involving competition for shelter space.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Oecologia 84 (1990), S. 419-429 
    ISSN: 1432-1939
    Keywords: Reef fish ; Population dynamics ; Giant kelp ; Resources
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The effect of giant kelp, Macrocystis pyrifera, on the population dynamics of two temperate reef fishes, striped surfperch (Embiotoca lateralis) and black surfperch (E. jacksoni), was examined. Based on an understanding of how particular reef resources influence abundances of the surfperch and of the effect of giant kelp on those resources, we anticipated that Macrocystis would adversely affect populations of striped surfperch but would enhance those of black surfperch. The natural establishment of giant kelp at sites at Santa Cruz Island, California, resulted in the predicted dynamical responses of surfperch. Abundances of striped surfperch declined rapidly when and where dense forests of giant kelp appeared, but showed little change where Macrocystis was continuously absent over the 8 y period of study. Abundances of adult black surperch, which increased following the appearance of giant kelp, were lagged by 〉1 y because the dynamical response involved enhanced local recruitment. No change in abundance of black surfperch populations was evident at areas without giant kelp. The mechanism by which giant kelp altered the dynamics of the surfperch involved modification of the assemblage of understory algae used by surfperch as foraging microhabitat. Foliose algae (including Gelidium robustum) were much reduced and turf was greatly enhanced following the appearance of Macrocystis; these two benthic substrata are the favored foraging microhabitat for striped surfperch and black surfperch respectively. Populations of both surfperch species tracked temporal changes in the local availability of their favored foraging microhabitat. Thus, while neither species used Macrocystis directly, temporal and spatial variation in giant kelp indirectly influenced the dynamics of these fishes by altering their foraging base. These results indicate that the dynamics of striped surfperch and black surfperch were governed to a large degree by density-dependent consumer-resource interactions. The present work underscores the predictive value that arises from a knowledge of the mechanisms by which processes operate.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Characteristics of the diet of black surfperch, Embiotoca jacksoni (Embiotocidae), were compared between islands where it occurs with and without a congener, the striped surfperch, Embiotoca lateralis. Several hypotheses were considered to explain observed dietary differences between allopatric and sympatric populations of black surfperch. Some differences could be readily attributed to interisland differences in the availability of prey items. Remaining dietary differences were examined in view of optimal foraging and competition hypotheses. Observations did not conform to predictions of optimal foraging theory, but did fit predictions regarding interspecific competition. There was a shift in the types and sizes of gammarid amphipods consumed between allpatric and sympatric populations of black surfperch. Gammarid amphipods are the most important prey taxon to both Embiotoca species, comprising more than 70% by number of all prey items in the diet. Further, allopatric E. jacksoni displayed patterns of selectivity for prey of various sizes that were qualitatively different from those displayed by black surfperch sympatric with E. lateralis. The prey size selectivity of allopatric black surfperch was qualitatively very similar to that found for E. lateralis. The differences in black surfperch diet that were not explained by differences in resource bases among islands were in the direction predicted by competition theory. The dietary breadth of E. jacksoni was also broader in allopatry than in sympatry. As a result of these dietary differences, there was an apparant divergence in prey use by co-occurring Embiotoca species.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Oecologia 69 (1986), S. 1-11 
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The influence of seasonal availability of two critical resources (food and substrates from which food was harvested) on interspecific competition between striped surfperch (Embiotoca lateralis) and black surfperch (Embiotoca jacksoni) was examined. There was a strong depth-related gradient in density of prey and in cover of foliose algae; both declined with increasing bottom depth. Density of prey was reduced 5–10 fold during the winter season, but cover of substrates remained constant throughout the year. Although both fishes co-occurred throughout the same depth range, striped surfperch were more common in shallow habitats and black surfperch were more abundant deeper. Local abundance and distribution patterns of both surfperch species did not change seasonally. Stepwise regression analyses suggested that availability of favored substrates was a proximate influence on local patterns of surfperch distribution and abundance, and that interspecific competition depressed abundance of the two species to the same degree. Removal experiments conducted during the cold-water season revealed that interspecific competition influenced depth distribution of black surfperch but not striped surfperch. Seasonal change in density of prey was accompanied by marked changes in overlap in use of foraging substrates by the surfperches. The pattern of change in interspecific overlap suggested that surfperch competed for food only when prey were seasonally scarce. There was no difference in the agonistic tendencies of the two fishes, and the absolute and relative frequency of interspecific chases was independent of food level. These results have important implications regarding the impact of temporal variability of interspecific competition in natural communities. In the surfperch system, competition was characterized by constant and time-varying elements that had symmetrical and asymmetrical effects and involved both interference and exploitation mechanisms.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Environmental biology of fishes 16 (1986), S. 135-146 
    ISSN: 1573-5133
    Keywords: Foraging behavior ; Foraging success ; Competitive interactions ; Marine fish ; Among-individual variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Synopsis Black surfperch, Embiotoca jacksoni, and striped surfperch, Embiotoca lateralis, coexisted along steep sloping rocky habitats at Santa Cruz Island, California. The range of depths occupied (to 15 m) was characterized by a strong gradient in abundance of prey and a changing mosaic of substrate types from which surfperch harvested food. Availability of prey and diversity of benthic substrates were greatest in shallowest areas and both declined with increasing depth. Individuals of both surfperch species were residential within a narrow range of depths, with the result that different segments of their populations were consistently exposed to different foraging environments. These two phenomena (residential behavior combined with a gradient in availability of resources) resulted in variation in foraging behaviors and diets among individuals that resided at different depths. The pattern of within-population variation differed between the surfperch species. Black surfperch individuals achieved similar taxonomic diets and expended similar foraging effort at all depths, but deep-water foragers captured much less prey biomass per unit effort. The taxonomic composition of striped surfperch diets differed among depths, and although similar amounts of prey biomass were captured everywhere, individuals in deep areas expended much greater effort to obtain that level of food return. For both species, habitat profitability (food return to foraging effort) declined with depth. The difference in habitat profitability appeared to influence fitness components of both surfperches. Individuals occupying deep habitats were about 5% shorter in standard length than conspecifics of the same chronological age living in shallow areas; the disparity in body size resulted in an estimated difference in clutch size of 10–18%.
    Type of Medium: Electronic Resource
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  • 8
    Publication Date: 2022-05-26
    Description: © The Author(s), 2016. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in GigaScience 5 (2016): 14, doi:10.1186/s13742-016-0118-5.
    Description: Systems biology promises to revolutionize medicine, yet human wellbeing is also inherently linked to healthy societies and environments (sustainability). The IDEA Consortium is a systems ecology open science initiative to conduct the basic scientific research needed to build use-oriented simulations (avatars) of entire social-ecological systems. Islands are the most scientifically tractable places for these studies and we begin with one of the best known: Moorea, French Polynesia. The Moorea IDEA will be a sustainability simulator modeling links and feedbacks between climate, environment, biodiversity, and human activities across a coupled marine–terrestrial landscape. As a model system, the resulting knowledge and tools will improve our ability to predict human and natural change on Moorea and elsewhere at scales relevant to management/conservation actions.
    Description: Work was supported in part by: the Institute of Theoretical Physics and the Pauli Center at ETH Zurich; the US National Science Foundation (NSF Moorea Coral Reef Long Term Ecological Research Site, OCE-1236905; Socio-Ecosystem Dynamics of Natural-Human Networks on Model Islands, CNH-1313830; Coastal SEES: Adaptive Capacity, Resilience, and Coral Reef State Shifts in Social-ecological Systems, OCE-1325652, OCE-1325554); the Gordon and Betty Moore Foundation (Berkeley Initiative in Global Change Biology; Genomic Standards Consortium); Courtney Ross and the Ross Institute; UC Berkeley Vice Chancellor for Research; CRIOBE; and the France Berkeley Fund (FBF 2014-0015).
    Keywords: Computational ecology ; Biodiversity ; Genomics ; Biocode ; Earth observations ; Social-ecological system ; Ecosystem dynamics ; Climate change scenarios ; Predictive modeling
    Repository Name: Woods Hole Open Access Server
    Type: Article
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