Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 43.4, Problem 2CC
MAKE CONNECTIONS There are vast stores of organic matter in the soils of northern coniferous forests and tundra around the world. Suggest an explanation for why scientists who study global warming are closely monitoring these stores (see Figures 7.2 and 42.13).
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Interconnectedness of the Biosphere and Atmosphere
Question: Please propose an explanation for the correlation between the annual fluctuations of atmospheric Carbon Dioxide and annual cycles
of phytoplankton biomass shown in the figures below. Describe the mechanisms that lead to the correlation you proposed.
Atmospheric Carbon Dioxide
SCIAMACHY/ENVISAT Northern Hemisphere
SCIAMACHY
390
Mauna Loa, Hawaii, USA (3397 m), NOAA/ESRL
Mace Head, Ireland (25 m), NOAA/ESRL
380
SCIAMACHY
370
XCO, [ppm]
364
376
388
360
Michael.Buchwitz@iup.physik.uni-bremen.de
NOAA data: ftp://ftp.cmdl.noaa.gov/ccg/co2/flask/month/
350
1994
1996 1998
2000
2002 2004 2006 2008 2010
Year
Fig. 1: Annual cycles of phytoplankton biomass in the Southern Ocean.
MMMM
Winter
Summer
1200
1000
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В I
Integrated
CO, mixing ratio [ppm]
DI
MAKE CONNECTIONS Review the discussion of feedback regulation in Concept 1.1. Could effects of globalwarming on peatlands alter CO2 concentrations in waysthat result in negative or positive feedback? Explain.
WRITE ABOUT A THEME: Energy and MatterDecomposition typically occurs quickly in moist tropicalforests. However, waterlogging in the soil of some moisttropical forests results over time in a buildup of organicmatter called “peat.” In a short essay (100–150 words), discussthe relationship of net primary production, net ecosystemproduction, and decomposition for such an ecosystem. AreNPP and NEP likely to be positive? What do you think wouldhappen to NEP if a landowner drained the water from atropical peatland, exposing the organic matter to air?
Chapter 43 Solutions
Campbell Biology in Focus
Ch. 43.1 - Prob. 1CCCh. 43.1 - Prob. 2CCCh. 43.1 - WHAT IF? Imagine two populations of a fish...Ch. 43.2 - How does the reduced genetic diversity of small...Ch. 43.2 - Prob. 2CCCh. 43.2 - WHAT IF? In 2005, at least ten grizzly bears in...Ch. 43.3 - Prob. 1CCCh. 43.3 - Prob. 2CCCh. 43.3 - Prob. 3CCCh. 43.4 - How can the addition of excess mineral nutrients...
Ch. 43.4 - MAKE CONNECTIONS There are vast stores of organic...Ch. 43.5 - Prob. 1CCCh. 43.5 - Prob. 2CCCh. 43.6 - Prob. 1CCCh. 43.6 - Prob. 2CCCh. 43.6 - WHAT IF? Suppose a new fishery is discovered, and...Ch. 43 - Prob. 1TYUCh. 43 - Prob. 2TYUCh. 43 - Prob. 3TYUCh. 43 - Prob. 4TYUCh. 43 - Prob. 5TYUCh. 43 - Prob. 6TYUCh. 43 - Prob. 8TYUCh. 43 - FOCUS ON EVOLUTION The fossil record indicates...Ch. 43 - Prob. 10TYUCh. 43 - SYNTHESIZE YOUR KNOWLEDGE Big cats, such as the...
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