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The State of the Planet - 2050
Abstracts and comments attached the Science Magazine series, November 14-December 5, 2003, VOL 302 |
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For a number of years now I have argued that our natural environments and resources and their various ecologies have been seriously abused in terms of both how better use would serve us and how ongoing abuse can only but disserve posterity -which, if one
thinks about it, necessarily includes anyone younger than -and therefore, ourselves. 'Fortuitously' then, The State of the Planet, a current, heavily detailed series in the weekly magazine, Science (VOL 302), supports much of what I have written
-but not without problem. Democracy, for example, is an artifact of thus-far evolution (freshman anthropology); ours, and all thus-far governments, in this respect, are still fundamentally 'pecking-order-based' and essentially aristocratic in
nature and deed. |
analyses are themselves part of the problem: they conjecture 'What may
happen if we do or not do this or that', but they are not, almost universely, proactively engaged in any reformation of government offsetting the 'negatives' in their findings -in anything, that is, that compromises their own positions of 'well-being and
quality of life' in the aristocracy. -Or to put it another way: why should anyone properly calling himself a scientist today expect his 'lifestyle and quality of life' to be compatible with the earth's carrying capacity for a billion or
more others of even profoundly lesser 'lifestyle and quality of life'? [Those interested in a measure of this 'aristocracy' should consider taking The Ecological Footprint Quiz by Redefining Progress.] |
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Posted January 18, 2004; last modified June 20, 2004
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(*8) December 12, 2003 Science Magazine vol 302 (p1861) Editorial
Thirty-five years ago, Science published a remarkable essay by Garret Hardin entitled "Tragedy of the Commons". I knew Hardin at the time and admired his paper, but had no idea whatsoever of the influence it and its
author would have on how we think about population and the environment. That influence has spawned several successor strands. One, evident almost immediately, was an enhanced concern about the impact of population growth on resource utilization. The
second was a delayed argument about how to consider population growth in policy terms -an argument to which Hardin later added combustible material with a piece called "Lifeboat Ethics" that struck many as elitist or hard-hearted. The third,
much later, is a recent social science literature revising Hardin's hard choice (either a coercive consensus to limit breeding or repressive government controls) by showing that groups often evolve fair social arrangements that limit exploitation and
conserve shared resources. |
George Perkins Marsh provided a meticulous 19th-century account of what had happened to the world's woods, waters, and fields. In Marsh one finds a kind of outrage over environmental damage, but there is little of the sense of wonder about nature that
one finds in modern writers such as Wallace Stegner. Marsh is all about use values, Stegner about nonuse. A modern convergence defines sustainability as requiring that the average welfare of the successor generation, with respect to the total of all
these values, be as high or higher than that of the current generation.
Donald Kennedy |
Human Population: The Next Half Century(*1) by Joel E. Cohen [et al]
Prospects for Biodiversity(*2) by Martin Jenkins
The Future for Fisheries(*3) by Daniel Pauly [et al]
Global Freshwater Resources:(*4) by Peter H. Gleick
Energy Resources and Global Development(*5) by Jeffrey Chow [et al]
Global Air Quality and Pollution(*6) by Hajime Akimoto
Modern Global Climate Change(*7) by Thomas R. Karl1 and Kevin E. Trenberth2
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(*1) November 14, 2003 Science Magazine vol 302 p1172 Human Population: The Next Half Century Joel E. Cohen [et al] [abstract: first and last paragraphs] By 2050, the human population will probably be larger by 2 to 4 billion people, more slowly growing (declining in the more developed regions), more urban, especially in less developed regions, and older than in the 20th century. Two major demographic uncertainties in the next 50 years concern international migration and the structure of families. Economies, nonhuman environments, and cultures (including values, religions, and politics) strongly influence demographic changes. Hence, human choices, individual and |
collective, will have demographic effects, intentional or otherwise. ... Three factors set the stage for further major changes in families: fertility falling to very low levels; increasing longevity; and changing mores of marriage, cohabitation, and divorce. In a population with one child per family, no children have siblings. In the next generation, the children of those children have no cousins, aunts, or uncles. If adults live 80 years and bear children between age 20 and 30 on average, then the parents will have decades of life after their children have reached adulthood and their children will have decades of life with elderly parents. The full effects on marriage, child bearing, and child rearing of greater equality between the sexes in education; earnings; and social, legal, and political rights have yet to be felt or understood. |
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November 14, 2003 Science Magazine vol 302 p1175 Prospects for Biodiversity Martin Jenkins [abstract: first and last paragraphs] Assuming no radical transformation in human behavior, we can expect important changes in biodiversity and ecosystem services by 2050. A considerable number of species extinctions will have taken place. Existing large blocks of tropical forest will be much reduced and fragmented, but temperate forests and some tropical forests will be stable or increasing in area, although the latter will be biotically impoverished. Marine ecosystems |
will be very different from today's, with few large marine predators, and freshwater biodiversity will be severely reduced almost everywhere. These changes will not, in themselves, threaten the survival of humans as a species.
... This does not mean, of course, that we can continue to manipulate or abuse the biosphere indefinitely. At some point, some threshold may be crossed, with unforeseeable but probably catastrophic consequences for humans. However, it seems more likely that these consequences would be brought about by other factors, such as abrupt climate shifts (24), albeit ones in which ecosystem changes may have played a part. |
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November 21, 2003 Science Magazine vol 302 p1359 The Future for Fisheries Daniel Pauly [et al] [abstract: first and last paragraphs]
Formal analyses of long-term global marine fisheries prospects have yet to be performed, because fisheries research focuses on local, species-specific management issues. Extrapolation of present trends implies expansion of bottom fisheries into deeper
waters, serious impact on biodiversity, and declining global catches, the last possibly aggravated by fuel cost increases. |
Examination of four scenarios, covering various societal development choices, suggests that the negative trends now besetting fisheries can be turned around, and their supporting ecosystems rebuilt, at least partly.
These scenarios describe what might happen, not what will come to pass. Still, they can be used to consider what we want for our future. We have noted, however, that many of the fisheries we investigated, e.g., in the North Atlantic (27) or the Gulf of
Thailand (28), presently optimize nothing of benefit to society: not rent [taxable through auctions (29)], and not even gross catches (and hence long-term food and employment security). It is doubtful that they will be around in 2050. |
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November 28, 2003 Science Magazine vol 302 p1524 Global Freshwater Resources: Soft-Path Solutions for the 21st Century Peter H. Gleick [abstract: first and last paragraphs]
Twentieth-century water policies relied on the construction of massive infrastructure in the form of dams, aqueducts, pipelines, and complex centralized treatment plants to meet human demands. These facilities brought tremendous benefits to billions of
people, but they also had serious and often unanticipated social, economical, and ecological costs. Many unsolved water problems remain, and past approaches no longer seem sufficient. A transition is under way to a "soft path" that complements
centralized physical infrastructure with lower cost community-scale systems, decentralized and open decision-making, water markets and equitable pricing, application of efficient technology, and environmental protection. |
Ultimately, meeting basic human and ecological needs for water, improving water quality, eliminating overdraft of groundwater, and reducing the risks of political conflict over shared water require fundamental changes in water management and use. More
money and effort should be devoted to providing safe water and sanitation services to those without them, using technologies and policies appropriate to the scale of the problem. Economic tools should be used to encourage efficient use of water and
reallocation of water among different users. Ecological water needs should be quantified and guaranteed by local or national laws. And long-term water planning must include all stakeholders, not just those traditionally trained in engineering and
hydrologic sciences.
~~~~~~~~~~~~ Pacific Institute for Studies in Development, Environment, and Security, Oakland, CA 94612, USA. |
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November 28, 2003 Science Magazine vol 302 p1528 Energy Resources and Global Development Jeffrey Chow, Raymond J. Kopp, Paul R. Portney [abstract: first and last paragraphs] In order to address the economic and environmental consequences of our global energy system, we consider the availability and consumption of energy resources. Problems arise from our dependence on combustible fuels, the environmental risks associated with their extraction, and the environmental damage caused by their emissions. Yet no primary energy source, be it renewable or nonrenewable, is free of environmental or economic limitations. As developed and developing economies continue to grow, conversion to and adoption of environmentally benign energy technology will depend on |
political and economic realities. ... If fossil fuel depletion occurs more rapidly than we expect, or if governments enact policies that artificially increase fossil fuel prices, renewables and alternative energy sources may come online more quickly. The requisite political will and financial support to enact such changes will occur only when societies and their governments decide that the benefits of fossil fuel consumption do not make up for the negative effects on environmental health and human welfare of fossil fuel dependence. ~~~~~~~~~~~~ Resources for the Future, 1616 P Street, N.W., Washington, DC 20036, USA. |
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December 5, 2003 Science Magazine vol 302 p1716 Global Air Quality and Pollution Hajime Akimoto [abstract: first and last paragraphs]
The impact of global air pollution on climate and the environment is a new focus in atmospheric science. Intercontinental transport and hemispheric air pollution by ozone jeopardize agricultural and natural ecosystems worldwide and have a strong effect
on climate. Aerosols, which are spread globally but have a strong regional imbalance, change global climate through their direct and indirect effects on radiative forcing. In the 1990s, nitrogen oxide emissions from Asia surpassed those from North
America and Europe and should continue to exceed them for decades. International initiatives to mitigate global air pollution require participation from both developed and developing countries. |
areas with over 10 million inhabitants, although there is no precise accepted threshold, and population estimates are not necessarily based on the same areas of reference. In 2001, there were 17 megacities according to United Nations statistics (47).
With rapid growth of the world's population, particularly in developing countries, and continuing industrialization and migration toward urban centers, megacities are becoming more important sources of air pollution from associated mobile and stationary
sources. Air quality in megacities is thus of great concern, as illustrated by a study in Mexico City (48). Although the health effects of air pollution on the inhabitants of megacities are a serious social problem, its regional and global environmental
consequences are also of great concern. Therefore, local, regional, and global air-quality issues, and regional and global environmental impacts, including climate change, should be viewed in an integrated manner.
~~~~~~~~~~~~ Frontier Research System for Global Change, 3173-25 Showa-machi, Kanazawa-ku, Yokohama 236-0001, Japan.] |
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December 5, 2003 Science Magazine vol 302 p1719 Modern Global Climate Change Thomas R. Karl1 and Kevin E. Trenberth2 [abstract: first and last paragraphs] Modern climate change is dominated by human influences, which are now large enough to exceed the bounds of natural variability. The main source of global climate change is human-induced changes in atmospheric composition. These perturbations primarily result from emissions associated with energy use, but on local and regional scales, urbanization and land use changes are also important. Although there has been progress in monitoring and understanding climate change, there remain many scientific, technical, and institutional impediments to precisely planning for, adapting to, and mitigating the effects of climate change. There is still considerable uncertainty about the rates of change that can be expected, but it is clear that these changes will be increasingly manifested in important and tangible ways, such as changes in extremes of temperature and precipitation, decreases in seasonal and perennial snow and ice extent, and sea level rise. Anthropogenic climate change is now likely to continue for many centuries. We are venturing into the unknown with climate, and its associated impacts could be |
quite disruptive. ... We are entering the unknown with our climate. We need a global climate observing system, but only parts of it exist. We must not only take the vital signs of the planet but also assess why they are fluctuating and changing. Consequently, the system must embrace comprehensive analysis and assessment as integral components on an ongoing basis, as well as innovative research to better interpret results and improve our diagnostic capabilities. Projections into the future are part of such activity, and all aspects of an Earth information system feed into planning for the future, whether by planned adaptation or mitigation. Climate change is truly a global issue, one that may prove to be humanity's greatest challenge. It is very unlikely to be adequately addressed without greatly improved international cooperation and action. ~~~~~~~~~~~~ 1 National Oceanic and Atmospheric Administration, National Climatic Data Center, Satellite and Information Services, 151 Patton Avenue, Asheville, NC, 288015001, USA. 2 National Center for Atmospheric Research, Post Office Box 3000, Boulder, CO 80307, USA. *To whom correspondence should be addressed. E-mail: Thomas.R.Karl@noaa.gov |
Date: January 9, 2004
From: PS Bezanis
To:
William Adams et al ,
Joel E. Cohen ,
Klaus Hasselmann et al ,
Oliver Houck ,
Martin Jenkins ,
Thomas R. Karl et al ,
A J McMichael et al ,
C G Nicholas Mascie-Taylor et al ,
Daniel Pauly ,
Jules Pretty ,
Mark Rosegrant et al ,
Paul Stern et al ,
Robert Watson ,
(apologies to those whose email addresses were not specified in Science Magazine)
Subject:
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First, I thank everyone for an excellently thorough 'State Of The Planet' series. I must say, nevertheless, that what I see is the continuing unwillingness of scientists in general to engage government in more than warning of 'dire what-if consequences'.
The explanation for this is that free-enterprise democracy is profoundly profitable and seductive to the well-educated, thus inspite of their findings, scientists in general find little reason or incentive to argue for any intrusion which diminishes
their quality of life. The situation then, is that scientists are themselves part of the 'resources and environment' problem they identify.
Be that what it be, scientists should consider that it is they and they alone who will eventually inherit the job of determining the nature and course of human existence by determining 'the state of the planet' as follows.
1 - Nations today generally reflect the economic interrelationships of the individual people of those nations, essentially those of the individual's ownerships, habits, dispositions, consumerisms and 'the right to earn a living'. |
5 - There is, therefore, little reason to believe that any change of momentum 'meliorative to the projected dire 2050 state of the planet' should be expected -except as might be proactively brought about by knowledgeable scientists.
6 - The scientist working alone is intrinsically unhampered by 'pecking order' (likewise the mathematician), and working together too, then, scientists tend to keep pecking order out of their work -except as influenced by potential financial gains outside the laboratory ('Zerhouni' and 'Stealth Merger' below). 7 As we discover how 'screwing up The State Of The Planet affects our continuing existence upon it', it is the scientist to whom the task of 'heuristic optimization' will naturally, solely, and inevitably default.
Related and attached (browser format) are two articles from current periodicals and two from this writer's website, Godel's Proof and The Human Condition PS Bezanis |
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Hardin's Tragedy of the Commons is, without a doubt, an excellent first identification of a problem unique to human evolution. It has not been moved along however, because its 'arena of resolution' is more or less stuck in time.
The reason, quite simply, is that it is hard to address this kind of problem without knowing something about its etiology. There is, in fact, such a thing, and it develops out of the nature of general evolutionary process. Further and better
still, it says more than a little about 'economics and the quality of life' in that continuing human course.
Following is a progression of this material, the bottom line of which is that any and all 'melioration of the tragedy' must eventually and inevitably default to scientists alone for properly heuristic, timely manipulation -it is they who are not 'moving resolution along'.
1 - Nations today generally reflect the economic interrelationships of the constituent individuals of those nations and peoples -habits, dispositions, consumerisms, 'the right to earn a living' et cetera. 2 - These are, in general, properties come into existence out of natural, evolutionary process, those of 'the classical diasporation and invasion of an econiche by an organism new to it' -here, the whole earth, and an organism of deliberative capability in particular. |
3 - The thus-far 'autonomy of distinct peoples and nations', in this respect, reflects the sub-speciation inherent of diasporation and the variability of econiche/environment natural resources and properties. 4 - All thus-far autonomy however (diasporation), is fundamentally pecking-order-based in origin and -unless otherwise driven, therefore also fundamentally aristocratic in nature regardless of governmental form. 5 - It is, in other words, a 'world democracy of autonomously aristocratic nations' -of peoples of 'variously autonomous, institutionalized pecking-order-based expression' -habits, dispositions, 'natural rights and freedoms', ethnicities, religions, consumerisms, 'power' et cetera. 6 - 'The tragedy of the commons' exists, in other words, because of a relative impossibility of identifying and convening argument that favors 'best continuing well-being and viability for the lifeform-whole' without compromising 'national autonomy' and the personal pecking-order-based expression it more or less assures. 7 - 'The real tragedy of the commons' then, is that it identifies a lifeform that it is genetically driven to supercede its 'autonomous self' -and knows it, but is loathe to deliberate any compromise of its aristocracy however inevitable that be. PS Bezanis |
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December 19, 2003 Science Magazine vol 302 p2046 CONFLICT OF INTEREST: Zerhouni Pledges Review of NIH Consulting in Wake of Allegations by Eliot Marshall A newspaper report on apparent conflicts of interest among National Institutes of Health (NIH) scientists has shaken the $27 billion biomedical research center to its core. Following the publication of a four-page article in The Los Angeles Times on 7 December, detailing how a handful of employees earned millions of dollars in outside income over a decade, both Congress and NIH Director Elias Zerhouni launched reviews of how the agency oversees staffers' outside deals (Science, 12 December, p. 1875). |
to review it from A to Z. This is too important for us not to be completely responsive."
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December 7, 2003 Los Angeles Times pA1 Stealth Merger: Drug Companies and Government Medical Research Some of the National Institutes of Health's top scientists are also collecting paychecks and stock options from biomedical firms. Increasingly, such deals are kept secret. By David Willman, Times Staff Writer
BETHESDA, Md. "Subject No. 4" died at 1:44 a.m. on June 14, 1999, in the immense federal research clinic of the National Institutes of Health.
Hidden From View
Temptations Abound
An Honor System |
At least one vestige of the old days remains. During last year's holiday season, workers were advised to refuse gifts from outsiders worth more than $20. "Just a reminder," ethics coordinator John C. Condray wrote, introducing a five-page memo, "that sometimes gifts and events can create the appearance of a lack of impartiality."
Fewer Public Filings
Make-or-Break Grants
Life-and-Death Decisions
'Absolutely No Role'
*About This Report
*Contributors |
(*e)
Science Magazine Dec 19 vol 302 p2082
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The ecosystem response to the 1989 spill of oil from the Exxon Valdez into Prince William Sound, Alaska, shows that current practices for assessing ecological risks of oil in the oceans and, by extension, other toxic sources should be changed.
Previously, it was assumed that impacts to populations derive almost exclusively from acute mortality. However, in the Alaskan coastal ecosystem, unexpected persistence of toxic subsurface oil and chronic exposures, even at sublethal levels, have
continued to affect wildlife. Delayed population reductions and cascades of indirect effects postponed recovery. Development of ecosystem-based toxicology is required to understand and ultimately predict chronic, delayed, and indirect long-term risks and
impacts.
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populated by abundant marine mammals, seabirds, and large fishes (25). |
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Acute-Phase Mortality After the release of crude oil from the Exxon Valdez into Prince William Sound (PWS), acute mortality followed a pattern largely predictable from other oil spills. Because marine mammals and seabirds require routine contact with the sea surface, these taxa experience high risk from floating oil (2, 6). Oiling of fur or feathers causes loss of insulating capacity and can lead to death from hypothermia, smothering, drowning, and ingestion of toxic hydrocarbons. Accordingly, mass mortalities of 1000 to 2800 sea otters (9) and unprecedented numbers of seabird deaths estimated at 250,000 (10) were documented during the days after the spill. An estimated 302 harbor seals, a short-haired marine mammal, were killed not by oiled pelage but likely from inhalation of toxic fumes leading to brain lesions, stress, and disorientation (2). Mass mortality also occurred among macroalgae and benthic invertebrates on oiled shores from a combination of chemical toxicity, smothering, and physical displacement from the habitat by pressurized wash-water applied after the spill (5, 7). |
0.87 year1, which in turn produced a loss of 58% over a year. Unexpectedly (3), rates of dispersion and degradation diminished through time, as most oil remaining after October 1992 was sequestered in environments where degradation was suppressed by
physical barriers to disturbance, oxygenation, and photolysis (12). A 2001 survey of intertidal PWS shorelines revealed 55,600 kg of often little weathered, Exxon Valdez oil in intertidal subsurface sediments and a perhaps equal mass of high-intertidal
degraded surface oil and lower-intertidal, minimally weathered subsurface oil (13). This represents a decay rate from 19922001 of only 0.22 to 0.30 year1 (20 to 26% loss over a year) from the 806,000 kg estimated to be present on PWS beaches in 1992.
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Long-Term Population Impacts Chronic exposures of sediment-affiliated species. Chronic exposures for years after the spill to oil persisting in sedimentary refuges were evident from biomarkers in fish (17), sea otters (18), and seaducks (19) intimately associated with sediments for egg laying or foraging. These chronic exposures enhanced mortality for years. In 1989, prediction of oil risk to fishes was based largely on testing acute toxicity in short-term (4-day) laboratory exposures to the water-soluble fraction dominated by 1- and 2-ringed aromatic hydrocarbons (8). After the spill, fish embryos and larvae were chronically exposed to partially weathered oil in dispersed forms that accelerate dissolution of 3-, 4-, and 5-ringed hydrocarbons largely missing from the traditional laboratory toxicity assays (15). Laboratory experiments showed that these multiringed polycyclic aromatic hydrocarbons (PAHs) from partially weathered oil at concentrations as low as 1 ppb are toxic to pink salmon eggs exposed for the months of development and to herring eggs exposed for 16 days (20, 21). This process explains the elevated mortality of incubating pink salmon eggs in oiled rearing streams for at least 4 years after the oil spill (16). |
detoxification enzyme CYP1A in individuals from northern Knight than from Montague Island (18). Abundance of sea otter prey (clams, mussels, crabs) did not differ between Knight and Montague during this period, so prey availability fails to explain
suppression of population recovery (23).
Suspension-feeding clams and mussels concentrate and only slowly metabolize hydrocarbons, which leads to chronically elevated tissue contamination that persisted in one prominent prey of sea otters, the clam Protothaca staminea, until at least 1996 (7).
Sediments in protected areas, including oiled mussel beds and shallow eelgrass habitats (25), also retained contamination, with recovery to background in oiled mussel beds estimated from repeated sampling to require up to 30 years (14). Thus, foraging
sea otters suffered chronic exposure to residual petroleum hydrocarbons from both sediment contact and ingestion of bivalve prey. In contrast, piscivorous river otters showed little evidence of chronic oil exposure even along heavily oiled shorelines,
implying that foraging in sediments entails greater risk (18).
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exposure to xenobiotics at sensitive early stages in vertebrate development can lead to enhanced mortality and reproductive impairment later in life through endocrine disruption and developmental abnormalities (32). Abnormal development occurred in
herring and salmon after exposure to the Exxon Valdez oil (14, 20). |
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to suppressed reproduction (2). In another pod (AT1) of transient (mammal-eating) killer whales, the 40% loss during the spill is leading to likely disintegration (2). Furthermore, the most compelling example in all of marine ecology of a trophic cascade
radically modifying a marine community comes from the Gulf of Alaska kelp ecosystem (36). Unless eliminated by killer whales that have lost their traditional, larger marine mammal prey (41), sea otters control sea urchin populations, preventing them from
overgrazing kelp and other macroalgae, and thereby retaining structural habitat for fishes and invertebrates (Fig. 2B). Given the spill loss of about 50% of the sea otters from PWS, there is potential for this cascade to influence recovery dynamics, but
evidence of its operation to date is limited to reduction in otter foraging and increase in urchin sizes (18). Nevertheless, should sea otters be eliminated from an area by an oil spill, the repeatability of the otterurchin-kelp cascade is sufficiently
strong that risk assessment models can confidently include its implications. In contrast, limited understanding of the importance of behaviorally mediated indirect effects in driving community dynamics (42) still prevents their inclusion in risk
modeling.
Implications of Changing Paradigms of Oil Ecotoxicity |
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