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Biological organisation
Known as:
Levels of Organization (anatomy)
, Levels of biological organisation
, Ecological organisation
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Biological organization is the hierarchy of complex biological structures and systems that define life using a reductionistic approach. The…
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Related topics
Related topics
20 relations
Biosphere
Complex system
Complex systems
Ecology
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Papers overview
Semantic Scholar uses AI to extract papers important to this topic.
Highly Cited
2015
Highly Cited
2015
Sources, fate and effects of microplastics in the marine environment: part 2 of a global assessment
P. Kershaw
,
C. Rochman
2015
Corpus ID: 134501127
Highly Cited
2010
Highly Cited
2010
Ecological Assessment of Selenium in the Aquatic Environment
P. Chapman
,
W. J. Adams
,
+6 authors
P. Shaw
2010
Corpus ID: 22151580
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Background and Need for Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Workshop Purpose and Goals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Participation and Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Workgroup Findings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Workgroup 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Problem formulation: Context for selenium risk assessment . . . . . . . . . . . . . . . . . . . . . 9 Selenium is a global problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Case studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Conceptual model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 How to investigate a potential selenium problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Workgroup 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Environmental partitioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Workgroup 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Bioaccumulation and trophic transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Workgroup 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Selenium toxicity to aquatic organisms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Workgroup 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Risk characterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Importance of problem formulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Risk characterization: Unique challenges concerning selenium . . . . . . . . . . . . . . . . . . 26 Risk management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Uncertainties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Overall Workshop Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Appendix: SETAC Pellston Workshop Participants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 List of Figures Figure 1 Conceptual model depicting Se dynamics and transfer in aquatic ecosystems . . . . . . . . . . . . .11 Figure 2 Hierarchy of effects across levels of biological organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Figure 3 Potential sources of Se to aquatic systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Figure 4 Selenium species associated with major processes in aquatic systems . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Figure 5 Partitioning of Se among environmental compartments in a typical aquatic system. . . .16 Figure 6 Selenium enrichment and trophic transfer in aquatic food webs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Figure 7 Selenium accumulation in different species of algae, invertebrates, and fish . . . . . . . . . . . . . . . .20 Figure 8 Conceptual pathway of Se transfer in aquatic ecosystems and relative certainty with which Se concentrations in environmental compartments can be assessed in making accurate characterizations of risk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 List of Tables Table 1 Assessment endpoints and measures of exposure and effect for aquatic and aquaticlinked organisms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Table 2 Uncertainties and recommendations for future research pertaining to toxicity of Se species . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Ecological Assessment of Selenium in the Aquatic Environment 4
Highly Cited
2007
Highly Cited
2007
Making Great Leaps Forward: Accounting for Detectability in Herpetological Field Studies
M. J. Mazerolle
,
L. Bailey
,
W. Kendall
,
J. Andrew Royle
,
S. Converse
,
J. D. Nichols
2007
Corpus ID: 49487974
Abstract Detecting individuals of amphibian and reptile species can be a daunting task. Detection can be hindered by various…
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Highly Cited
2006
Highly Cited
2006
Nitrogen as the limiting nutrient for eutrophication in coastal marine ecosystems: Evolving views over three decades
R. Howarth
,
R. Marino
2006
Corpus ID: 18144068
The first special volume of Limnology and Oceanography, published in 1972, focused on whether phosphorus (P) or carbon (C) is the…
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Highly Cited
2005
Highly Cited
2005
The Problem of Pattern and Scale in Ecology: The Robert H. MacArthur Award Lecture
R. MacArthur
2005
Corpus ID: 52855187
It is argued that the problem of pattern and scale is the central problem in ecology, unifying population biology and ecosystems…
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Highly Cited
2005
Highly Cited
2005
Habitat-dependent population regulation and community structure
D. Morris
Evolutionary Ecology
2005
Corpus ID: 514811
SummaryDensity-dependence provides a causal link between processes acting at different levels of ecological organization. The…
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Highly Cited
2004
Highly Cited
2004
Detecting important categorical land changes while accounting for persistence
R. Pontius
,
Emily Shusas
,
M. McEachern
2004
Corpus ID: 41018807
The cross-tabulation matrix is a fundamental starting point in the analysis of land change, but many scientists fail to analyze…
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Highly Cited
2002
Highly Cited
2002
Faunal and environmental change in the late Miocene Siwaliks of northern Pakistan
J. Barry
,
M. Morgan
,
+7 authors
J. Kelley
2002
Corpus ID: 18408360
Abstract The Siwalik formations of northern Pakistan consist of deposits of ancient rivers that existed throughout the early…
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Highly Cited
2001
Highly Cited
2001
Ecological Consequences of Recent Climate Change
J. Mccarty
2001
Corpus ID: 53405671
Global climate change is frequently considered a major conservation threat. The Earth's climate has already warmed by 0.5 8 C…
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Highly Cited
2000
Highly Cited
2000
From molecules to ecosystems through dynamic energy budget models.
R. Nisbet
,
E. Muller
,
K. Lika
,
S. Kooijman
2000
Corpus ID: 18448401
Summary 1. Dynamic energy budget (DEB) models describe how individuals acquire and utilize energy, and can serve as a link…
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