The Role of Predation in Shaping Crocodilian Natural History

@inproceedings{Somaweera2013TheRO,
  title={The Role of Predation in Shaping Crocodilian Natural History},
  author={Ruchira Somaweera and Matthew L. Brien and Richard Shine},
  year={2013}
}
Abstract: Although adult crocodilians have few predators (mostly humans and other crocodilians), hatchlings and eggs are killed and consumed by a diverse array of invertebrates, fishes, anurans, reptiles, birds, and mammals. We review published literature to evaluate the incidence of predation in crocodilian populations, and the implications of that mortality for crocodilian life-history evolution. Presumably because predation is size-dependent, small-bodied crocodilian taxa appear to be more… Expand
View on BioOne
docs.wixstatic.com
40 Citations
Highly Influential Citations
6
Background Citations
17

40 Citations

Citation Type

Citation Type

Conservation Genetics of New World Crocodilians
The chapter gives an introductory overview on the biology of the 11 species of crocodilians inhabiting the Americas. Geographical distribution is broadly discussed in the light of biogeographical and… Expand
Reptiles, Biodiversity of
TLDR
The life histories of most large species of turtles, lizards, snakes, and crocodilians depend on prolonged adult survival and reproduction, and it is unlikely that these species will long withstand the current rate of commercial exploitation. Expand
Crocodilians Are Promiscuous But Not to the Benefit of Heterozygosity
TLDR
It is argued that any advantage of genetic gain, genetic variability or inbreeding avoidance that might achieved by multiple paternity is overcome by low embryo and offspring survival leading to low recruitment rates into the adult breeding population. Expand
Dinosaur nest ecology and predation during the Late Cretaceous: was there a relationship between upper Cretaceous extinction and nesting behavior?
TLDR
It is argued that the reproductive strategy of obligatory nest defense was likely practiced by most non-avian dinosaur species, but this strategy was highly susceptible to the increasing numbers of mammalian, avian, and reptilian predators, which rendered this strategy obsolete. Expand
Niche partitioning in crocodiles Niche partitioning between juvenile sympatric crocodilians in Mesangat Lake , East Kalimantan , Indonesia
Crocodilians are apex predators and sympatric species are likely to have different ecologies or morphologies in order to minimise competition between species, i.e., niche partitioning. Here, we… Expand
Predation of an adult female Morelet’s crocodile ( Crocodylus moreletii ) by a jaguar ( Panthera onca ) in the Calakmul region, Mexico
TLDR
Morelet’s crocodile is a medium-sized species, and like other crocodylians, plays key roles in structuring food webs and maintaining ecological processes within tropical and sub-tropical aquatic ecosystems. Expand
Survival of lizard eggs varies with microhabitat in the presence of an invertebrate nest predator
TLDR
It is suggested that selection of nest sites by female brown anoles can influence offspring survival in the presence of marsh crabs, and the importance of nest site microhabitat choice may vary with predator density. Expand
Science and conservation of Amazonian crocodilians: a historical review
Crocodilians represent one of the oldest extant vertebrate lineages. They have co‐existed with humans throughout the Amazon basin for thousands of years, often having a strong cultural and economic… Expand
Reciprocal Intraguild Predation between Alligator mississippiensis (American Alligator) and Elasmobranchii in the Southeastern United States
TLDR
Evidence regarding reciprocal intraguild predation between American Alligators and elasmobranchs is examined and the first evidence of American Alligator depredation of 4 ElasmOBranchii species is provided. Expand
Egg predation and vertebrates associated with wild crocodilian nests in Mexico determined using camera-traps
TLDR
Camera-traps are used in four Mexican states to determine vertebrate species and egg predators associated with wild nests of Caiman crocodilus chiapasius, Crocodylus acutus and Croc Codylus moreletii and obtained the first photographic evidence of crocodilian egg predation. Expand
...
1
2
3
4
...

References

SHOWING 1-10 OF 415 REFERENCES
Population biology of the American crocodile
TLDR
The population biology of the American crocodile was studied in southern Florida during 1977-1982, finding no evidence of adults defending nests or young, but nest opening by adults was essential for hatching, and available data cannot support the view that the number of nests has decreased in recent years. Expand
Ontogenetic Dietary Partitioning by Crocodylus johnstoni during the Dry Season
TLDR
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. Expand
The Ecology of a Cryptic Predator, Paleosuchus trigonatus, in a Tropical Rainforest
TLDR
Estimates of the biomass of adults in the study area indicate that P. trigonatus has by far the highest biomass of any large predator in the central Amazonian rainforest. Expand
Evolutionary and Systematic Significance of Crocodilian Nesting Habits
TLDR
There are absolute differences in these nesting habits and, as I hope to show, these differences are also closely correlated with the evolution and systematics of the group. Expand
Determinants of Habitat Selection by Hatchling Australian Freshwater Crocodiles
TLDR
Habitat selection of hatchling crocodiles in this system may be driven both by prey availability and by predation risk, and Habitats with higher food availability harboured more hatchlings. Expand
Comparative feeding ecology of felids in a neotropical rainforest
  • L. Emmons
  • Biology
  • Behavioral Ecology and Sociobiology
  • 2004
TLDR
Analysis of scats showed terrestrial mammals to be the chief prey of all three felids, but reptiles and birds were also numerically important in the diets of ocelot and jaguar. Expand
It’s a dog-eat-croc world: dingo predation on the nests of freshwater crocodiles in tropical Australia
TLDR
The results suggest that distinctive attributes of the lakeside landscape alter predator guilds and fashion unique predator–prey interactions in freshwater crocodiles inhabiting Lake Argyle. Expand
Diet of the Nile Crocodile (Crocodylus niloticus) in the Okavango Delta, Botswana
TLDR
The stomachs of 286 Nile 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. Expand
Crocodilian behaviour: a window to dinosaur behaviour?
TLDR
While individual crocodilian species have adapted their behaviours to meet specific strategies for survival in specific habitats, core reproductive behaviours are universal among modern crocodilians and transcend speciation, morphology and geographic distribution. Expand
Invasive cane toads (Bufo marinus) cause mass mortality of freshwater crocodiles (Crocodylus johnstoni) in tropical Australia
TLDR
The negative impacts of toads on crocodiles appear to be greater in these hot semi-arid landscapes than in cooler, higher rainfall areas where crocodiles have access to a wider prey base, and the toads are less prone to desiccation and can rehydrate in small, scattered water bodies rather than in the main river. Expand
...
1
2
3
4
5
...