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Megaherbivores as pacemakers of carnivore diversity and biomass : distributing or sinking trophic energy?

(2008) EVOLUTIONARY ECOLOGY RESEARCH. 10(6). p.925-930
Author
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Abstract
Question: What is the trophic role of megaherbivores? Hypothesis: Depending on their life histories, megaherbivores can either act as sinks or distributors of trophic energy. Methods: Comparative review of mammal and dinosaur faunas, and aspects of their reproductive biology. Conclusion: Extant (mammalian) megaherbivore populations represent trophic sinks that potentially limit carnivore diversity and productivity, because they are immune to predation and follow a reproductive strategy of very few, well-protected offspring. In contrast, in dinosaur faunas, the particularities of reproductive biology such as a larger number of offspring and limited parental care made a major part of megaherbivore biomass available to carnivores. Consequently, this increase in available trophic energy allowed for larger body masses and higher species diversity of dinosaur carnivores.
Keywords
mammals, dinosaurs, parental care, reproductive biology, BODY-SIZE, FOOD-WEB, DINOSAURS, EVOLUTION, PREDATOR, MAMMALS, COMMUNITIES, HERBIVORES, SCAVENGERS, DYNAMICS

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Chicago
Hummel, Jürgen, and Marcus Clauss. 2008. “Megaherbivores as Pacemakers of Carnivore Diversity and Biomass : Distributing or Sinking Trophic Energy?” Evolutionary Ecology Research 10 (6): 925–930.
APA
Hummel, J., & Clauss, M. (2008). Megaherbivores as pacemakers of carnivore diversity and biomass : distributing or sinking trophic energy? EVOLUTIONARY ECOLOGY RESEARCH, 10(6), 925–930.
Vancouver
1.
Hummel J, Clauss M. Megaherbivores as pacemakers of carnivore diversity and biomass : distributing or sinking trophic energy? EVOLUTIONARY ECOLOGY RESEARCH. 2008;10(6):925–30.
MLA
Hummel, Jürgen, and Marcus Clauss. “Megaherbivores as Pacemakers of Carnivore Diversity and Biomass : Distributing or Sinking Trophic Energy?” EVOLUTIONARY ECOLOGY RESEARCH 10.6 (2008): 925–930. Print.
@article{670113,
  abstract     = {Question: What is the trophic role of megaherbivores?
Hypothesis: Depending on their life histories, megaherbivores can either act as sinks or distributors of trophic energy.
Methods: Comparative review of mammal and dinosaur faunas, and aspects of their reproductive biology.
Conclusion: Extant (mammalian) megaherbivore populations represent trophic sinks that potentially limit carnivore diversity and productivity, because they are immune to predation and follow a reproductive strategy of very few, well-protected offspring. In contrast, in dinosaur faunas, the particularities of reproductive biology such as a larger number of offspring and limited parental care made a major part of megaherbivore biomass available to carnivores. Consequently, this increase in available trophic energy allowed for larger body masses and higher species diversity of dinosaur carnivores.},
  author       = {Hummel, J{\"u}rgen and Clauss, Marcus},
  issn         = {1522-0613},
  journal      = {EVOLUTIONARY ECOLOGY RESEARCH},
  language     = {eng},
  number       = {6},
  pages        = {925--930},
  title        = {Megaherbivores as pacemakers of carnivore diversity and biomass : distributing or sinking trophic energy?},
  volume       = {10},
  year         = {2008},
}

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