Diet of the Nile Crocodile (Crocodylus niloticus) in the Okavango Delta, Botswana

  title={Diet of the Nile Crocodile (Crocodylus niloticus) in the Okavango Delta, Botswana},
  author={Kevin M. Wallace and Alison J. Leslie},
Abstract The analysis of stomach contents can shed light on patterns of prey availability and foraging habits of a predator; however, recent studies have shown the potential bias in dietary studies resulting from differential digestion rates of various prey items. The stomachs of 286 Nile Crocodiles (17–166 cm snout–vent length) were lavaged over a two-year period. Taking prey residence times into account, the contents were examined for prey eaten within 24 h. Crocodylus niloticus has a similar… 
Diet of the American Crocodile (Crocodylus acutus) in Marine Environments of Coastal Belize
It is suggested populations in coastal Belize rely on salt glands in addition to behavioral strategies to maintain osmotic homeostasis, and hatchlings and small juveniles feed largely on insects and crustaceans, and larger juveniles broaden their diet to include fish and nonfish vertebrates.
Ontogenetic dependence of Nile crocodile (Crocodylus niloticus) isotope diet-to-tissue discrimination factors.
The diet of crocodiles from Lake Flag Boshielo shows a clear ontogenic shift, as has been seen in other studies, and the results strongly indicate a dependence on the terrestrial food web rather than a fish diet.
Frugivory and Seed Dispersal by Crocodilians: An Overlooked Form of Saurochory?
Although there is no evidence for a crocodilian-specific dispersal syndrome similar to that described for other reptiles, a review of the literature on crocodilian diet, foraging ecology, digestive physiology and movement patterns suggests that crocodilians function as effective agents of seed dispersal.
The Role of Predation in Shaping Crocodilian Natural History
Even for such large and superficially invulnerable taxa such as crocodilians, the avoidance of predation appears to have been a significant selective force on behavior, morphology, and ecology.
Variation in diet of hatchlings, juveniles and sub-adults of Caiman crocodilus chiapasius in La Encrucijada, Chiapas, Mexico
While the invertebrate intake decreased along different size classes, vertebrates intake increased, and that diet overlapped greater in adjacent size Classes, the data show that Caiman crocodilus chiapasius is protected by the Mexican law in the category of "special protection".
The ecology of Nile Crocodile (Crocodylus niloticus) in Pongolapoort Dam, Northern KwaZulu-Natal, South Africa.
In general Nile Crocodile Crocodylus niloticus numbers in South Africa appeared to have recovered after persecution and eradication attempts during the last century. Within the last decade, however,
Mercury contamination of the Nile Crocodile ( Crocodylus niloticus ) in the Okavango Delta , Botswana : A Baseline for the Assessment of Future Threats
  • Environmental Science
  • 2014
Mercury is a global neurotoxicant especially dangerous in wetlands and newly flooded areas which can be sites of enhanced monomethylmercury, a form of mercury that can be readily biomagnified. The
Population surveys of Nile crocodiles (Crocodylus niloticus) in the Murchison Falls National Park, Victoria Nile, Uganda
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Major diseases of nile crocodile (Crocodylus niloticus) with focus on current status in Arba Minch crocodile ranch, Ethiopia.
The Arba Minch Crocodile Ranch (AMCR) should exercise care and caution when introducing hatchlings from the wild into the Ranch and enhance its husbandry methods to reduce the occurrence of infection and disease.


The feeding ecology of yearling, juvenile and sub-adult Nile crocodiles, Crocodylus niloticus, in the Okavango Delta, Botswana
The stomachs of 286 crocodiles were lavaged over a two year period, and seven species of nematodes were found within the stomachs, four of which represent new geographic records.
The Foods and Feeding Habits of Subadult Crocodylus Porosus Schneider in Northern Australia.
Main foods in both seasons were crustaceans, mainly crabs of subfamily Sesarminae and shrimps of genus Macrobrachium, and the only fish eaten regularly was Pseudogobius sp.
Ontogenetic Dietary Partitioning by Crocodylus johnstoni during the Dry Season
The diet of C. johnstoni showed ontogenetic shifts as the cranium broadened and once body size exceeded 60 cm SVL, and there were overall increases in prey richness and significant declines in realized dietary niche, dietary breadth, and mean number of prey items per crocodile.
Diet, gastrolith acquisition and initiation of feeding among hatchling Morelet's crocodiles in Belize
The diet of hatchling C. moreletii is characterized, the acquisition of gastroliths by neonate crocodilians is poorly documented, and nothing is known concerning the initiation of feeding by wild hatchlings.
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Diets of Amazonian Crocodilians
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Factors Affecting Retention Time of Turtle Scutes in Stomachs of American Alligators, Alligator mississippiensis
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Growth Rates of Crocodylus Porosus (Reptilia: Crocodilia) From Arnhem Land, Northern Australia.
In C. porosus 80cm SVL has been derived separately, and the two curves intersect in the vicinity of 70 cm SVL, thought to reflect an energetic advantage in feeding on large rather than small prey.
The feeding ecology of two Nile crocodile populations in the Zambezi Valley
A study to determine the impact of Nile Crocodile populations on the ecology of the Lake Kariba, particularly its fish population.
Flooding dynamics in a large low-gradient alluvial fan, the Okavango Delta, Botswana, from analysis and interpretation of a 30-year hydrometric record
Abstract. The Okavango Delta is a flood-pulsed wetland, which supports a large tourism industry and the subsistence of the local population through the provision of ecosystem services. In order to