Optimal foraging of a herbivorous lizard, the green iguana in a seasonal environment

@article{Lichtenbelt2004OptimalFO,
  title={Optimal foraging of a herbivorous lizard, the green iguana in a seasonal environment},
  author={Wouter D. van Marken Lichtenbelt},
  journal={Oecologia},
  year={2004},
  volume={95},
  pages={246-256}
}
Food selection was studied in free living green iguanas (Iguana iguana) throughout the year in a semiarid environment, Curaçao (Netherlands Antilles). Food intake was determined by direct observations and converted into biomass intake. Comparison between intake and biomass availability of the various food items revealed that the lizards were selective, and that changes in seasonal food availability led to periodic switching of food plants. The extent to which nutrient constraints determine… Expand
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References

SHOWING 1-10 OF 56 REFERENCES
Digestion in an Ectothermic Herbivore, the Green Iguana (Iguana iguana): Effect of Food Composition and Body Temperature
TLDR
It is argued that body temperature affects the potential digestive capacity of the green iguana and is inversely related at a significant level to the transit time. Expand
Testing models of optimal diet assembly by the generalist herbivorous lizard Cnemidophorus murinus
TLDR
The results best support the nutritional wisdom hypothesis; the Bonaire whiptail lizard may assemble its diet to obtain the proper balance of required nutrients, while avoiding dangerous levels of plant secondary compounds. Expand
Nutrient constraints in the feeding ecology of an omnivore in a seasonal environment
TLDR
Ground squirrels, however, selected a wider dietary range than predicted in both winter and spring, and possible reasons include an inappropriate assumption that ground squirrels forage for food classes nonsimultaneously, and the possibility that ground Squirrels employ sampling as part of their foraging behavior. Expand
What Should a Clever Ungulate Eat?
TLDR
Key problem areas identified for further field research include the significance of bite-size differences, potential target nutrients and their rates of digestive assimilation, the effects of plant secondary chemicals, and the influence of varying scales of patch structure. Expand
Diet, digestion, and food preferences of Galapagos land iguanas. [Conolophus pallidus]
TLDR
Food of highest quality were found to be among the preferred foods, but not all preferred foods were of high quality with respect to the nutrients measured, and interspecific variability among iguanines probably reflects differences in colic anatomy and the ability to absorb nutrients from the hindgut. Expand
Water and electrolyte budgets of a free-living desert lizard,Sauromalus obesus
  • K. Nagy
  • Biology
  • Journal of comparative physiology
  • 2004
TLDR
Although water requirements of chuckwallas maintaining constant weights are low in comparison to some other desert vertebrates, metabolic water production is insufficient to balance losses and these lizards must eat succulent vegetation to maintain water balance. Expand
Diet optimization in a generalist herbivore: the moose.
  • G. Belovsky
  • Biology, Medicine
  • Theoretical population biology
  • 1978
TLDR
The general conclusion arrived at is that the foraging of a generalist herbivore can be predicted in a quantitative manner, at least in this case, as has been shown for other types of consumers (carnivores and granivores). Expand
Structure and Function of the Digestive Tract of a Herbivorous Lizard Iguana iguana
TLDR
Contrary to previous assertions, reptiles can be as efficient herbivores as mammals. Expand
Spring staging in Brent Geese Branta bernicla: feeding constraints and the impact of diet on the accumulation of body reserves
TLDR
The high quality of Puccinellia allowed geese to gain mass in spring, but the metabolizable energy of this plant species declined during the staging period, and Plantago and Triglochin increased in importance in supplying the geese with components with which to build their body reserves. Expand
Ontogenetic Changes in Diet, Field Metabolic Rate, and Water Flux in the Herbivorous Lizard Dipsosaurus dorsalis
TLDR
High mass-specific energy requirements associated with small body size did not impose a physiological limitation precluding herbivory in a lizard as small as hatchling Dipsosaurus, and Ontogenetic shifts in the balance of the diet from carnivory at hatching toward Herbivory at maturation is found among omnivorous species of intermediate adult size. Expand
...
1
2
3
4
5
...