- Title Pages
- [UNTITLED]
- List of Contributors
- List of Tables
- List of Figures
- Preface
-
One Introduction -
Two Whales, Interaction Webs, and Zero-Sum Ecology -
Three Lessons from Land Present and Past Signs of Ecological Decay and the Overture to Earth’s Sixth Mass Extinctio -
Four When Ecological Pyramids Were Upside Down -
Five Pelagic Ecosystem Response to a Century of Commercial Fishing and Whaling -
Six Evidence for Bottom-Up Control of Upper-Trophic-Level Marine Populations -
Seven Evolutionary Patterns in Cetacea Fishing Up Prey Size through Deep Time -
Eight A Taxonomy of World Whaling -
Nine The History of Whales Read from DNA -
Ten Changes in Marine Mammal Biomass in the Bering Sea/Aleutian Islands Region before and after the Period of Commercial Whaling -
Eleven Industrial Whaling in the North Pacific Ocean 1952–1978 -
Twelve Worldwide Distribution and Abundance of Killer Whales -
Thirteen The Natural History and Ecology of Killer Whales -
Fourteen Killer Whales as Predators of Large Baleen Whales and Sperm Whales -
Fifteen Physiological and Ecological Consequences of Extreme Body Size in Whales -
Sixteen Ecosystem Impact of the Decline of Large Whales in the North Pacific -
Seventeen The Removal of Large Whales from the Southern Ocean -
Eighteen Great Whales as Prey Using Demography and Bioenergetics to Infer Interactions in Marine Mammal Communities -
Nineteen Whales and Whaling in the North Pacific Ocean and Bering Sea Oceanographic Insights and Ecosystem Impacts -
Twenty Legacy of Industrial Whaling -
Twenty-One Predator Diet Breadth and Prey Population Dynamics -
Twenty-Two Bigger is Better -
TWENTY-THREE Gray Whales in the Bering and Chukchi Seas -
Twenty-Four Whales, Whaling, and Ecosystems in the North Atlantic Ocean -
Twenty-Five Sperm Whales in Ocean Ecosystems -
Twe Nty-Six Ecosystem Effects of Fishing and Whaling in the North Pacific and Atlantic Oceans -
Twenty-Seven Potential Influences of Whaling on the Status and Trends of Pinniped Populations -
Twenty-Eight The Dynamic Between Social Systems and Ocean Ecosystems -
Twenty-Nine Whaling, Law, and Culture -
Thirty Whales Are Big and It Matters -
Thirty-One Retrospection and Review - Index
Evidence for Bottom-Up Control of Upper-Trophic-Level Marine Populations
Evidence for Bottom-Up Control of Upper-Trophic-Level Marine Populations
Is It Scale-Dependent?
- Chapter:
- (p.50) Six Evidence for Bottom-Up Control of Upper-Trophic-Level Marine Populations
- Source:
- Whales, Whaling, and Ocean Ecosystems
- Author(s):
GEORGE L. HUNT JR.
- Publisher:
- University of California Press
This chapter examines the evidence for a bottom-up limitation of upper-trophic-level fish, marine birds, and marine mammals. It presents evidence of the role of food limitation on population size and on individual body condition and growth, both of which can affect fecundity in fish. In marine birds and mammals, body condition similarly affects fecundity and the potential for survival to age of first breeding, as well as adult survival. The discussion then examines briefly aspects of the life history characteristics that would argue for a weak role of predation in the regulation of populations of upper-trophic-level species in the marine environment, the spatial scales at which one might expect top-down or bottom-up control to play a more decisive role, and how the relative mobility of predator and prey affect the likelihood of top-down control.
Keywords: upper-trophic-level fish, marine mammals, food limitation, fecundity, life history characteristics, predation
California Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.
Please, subscribe or login to access full text content.
If you think you should have access to this title, please contact your librarian.
To troubleshoot, please check our FAQs, and if you can't find the answer there, please contact us.
- Title Pages
- [UNTITLED]
- List of Contributors
- List of Tables
- List of Figures
- Preface
-
One Introduction -
Two Whales, Interaction Webs, and Zero-Sum Ecology -
Three Lessons from Land Present and Past Signs of Ecological Decay and the Overture to Earth’s Sixth Mass Extinctio -
Four When Ecological Pyramids Were Upside Down -
Five Pelagic Ecosystem Response to a Century of Commercial Fishing and Whaling -
Six Evidence for Bottom-Up Control of Upper-Trophic-Level Marine Populations -
Seven Evolutionary Patterns in Cetacea Fishing Up Prey Size through Deep Time -
Eight A Taxonomy of World Whaling -
Nine The History of Whales Read from DNA -
Ten Changes in Marine Mammal Biomass in the Bering Sea/Aleutian Islands Region before and after the Period of Commercial Whaling -
Eleven Industrial Whaling in the North Pacific Ocean 1952–1978 -
Twelve Worldwide Distribution and Abundance of Killer Whales -
Thirteen The Natural History and Ecology of Killer Whales -
Fourteen Killer Whales as Predators of Large Baleen Whales and Sperm Whales -
Fifteen Physiological and Ecological Consequences of Extreme Body Size in Whales -
Sixteen Ecosystem Impact of the Decline of Large Whales in the North Pacific -
Seventeen The Removal of Large Whales from the Southern Ocean -
Eighteen Great Whales as Prey Using Demography and Bioenergetics to Infer Interactions in Marine Mammal Communities -
Nineteen Whales and Whaling in the North Pacific Ocean and Bering Sea Oceanographic Insights and Ecosystem Impacts -
Twenty Legacy of Industrial Whaling -
Twenty-One Predator Diet Breadth and Prey Population Dynamics -
Twenty-Two Bigger is Better -
TWENTY-THREE Gray Whales in the Bering and Chukchi Seas -
Twenty-Four Whales, Whaling, and Ecosystems in the North Atlantic Ocean -
Twenty-Five Sperm Whales in Ocean Ecosystems -
Twe Nty-Six Ecosystem Effects of Fishing and Whaling in the North Pacific and Atlantic Oceans -
Twenty-Seven Potential Influences of Whaling on the Status and Trends of Pinniped Populations -
Twenty-Eight The Dynamic Between Social Systems and Ocean Ecosystems -
Twenty-Nine Whaling, Law, and Culture -
Thirty Whales Are Big and It Matters -
Thirty-One Retrospection and Review - Index
