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  • 1
    Electronic Resource
    Electronic Resource
    Stress in seabirds: causes, consequences and diagnostic value (2000)
    Springer
    Journal of aquatic ecosystem stress and recovery 7 (2000), S. 91-109 
    Details
    ISSN: 1573-5141
    Keywords: climate change ; industrial fisheries ; marine monitors ; pollution ; Seabirds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We describe a range of anthropogenic stressors thatimpact seabirds, review the effects of these stressorson individuals and populations and discuss the roleand value of seabirds as monitors of marine ecosystemhealth. Stressors described are restricted to thosewhich affect seabirds directly or indirectly throughthe marine environment; we have not dealt withterrestrially based stressors such as introducedmammalian predators or loss of habitat, which canpotentially affect seabirds whilst breeding. Wediscuss three broad categories of stress in seabirds.Marine pollutants (including biologicallynon-essential heavy metals, oil, organic pesticidesand polychlorinated biphenyls (PCBs), and plastics),industrial fisheries (further divided into the effectsof depletion of prey stocks and direct mortality), andclimate change. Additionally we highlight the role ofseabirds as monitors of marine ecosystem health,taking the example of long-term mercury contaminationas a case study. We conclude that seabirds are exposedto an increasing array of potential stressors, andthat the impact of a particular source of stress onseabirds varies markedly between species in relationto foraging and breeding ecology. The most seriousthreat to seabirds is direct mortality of adultsresulting from industrial and commercial fishingactivities. In some cases this is a significant threatto individual populations or even entire species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009975514964
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Impacts of anthropogenic stress on rocky intertidal communities (2000)
    Springer
    Journal of aquatic ecosystem stress and recovery 7 (2000), S. 273-297 
    Details
    ISSN: 1573-5141
    Keywords: anthropogenic stress ; community ; harvesting ; human impact ; introduced species ; pollution ; rocky shore ; siltation ; trampling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Rocky shores provide a harsh environment for marine organisms andwe briefly discuss natural sources of variation in community structure beforeconsidering anthropogenic impacts in detail. We review impacts caused by (a) acutedisturbances: oil spills, toxic algal blooms and (b) chronic disturbances: nutrient pollution,oil, heavy metals, pesticides, antifouling paints, collecting, trampling/habitatdegradation, siltation and introduced species. Community level effects are emphasisedthroughout and illustrative examples are drawn from field-based case studies. Particularattention is given to the lessons learned from oil spills and the effect of chronicpollution by tributyltin on dogwhelks, the impacts of which ranged from the biochemical tocommunity levels of organisation. Impacts are placed in a global and historicalperspective and the potential for the recovery of shores under appropriate management isdiscussed. Finally we consider the relative merits of the multivariate and univariateapproaches to studying impacted communities and suggest priorities for future research.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009911928100
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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