Food Habits of American Alligators (Alligator mississippiensis) in East Texas

  title={Food Habits of American Alligators (Alligator mississippiensis) in East Texas},
  author={David T. Saalfeld and Warren C. Conway and Gary E. Calkins},
Abstract American Alligator (Alligator mississippiensis) food habit data are important when establishing management strategies, as diet can directly influence growth rates, body condition, behavior, and reproduction. Diets of American Alligators are hypothesized to vary among habitats as well as geographically; however, few diet studies have been conducted outside of Florida and Louisiana. To address this information gap, 62 diet samples were obtained from alligators ranging in size from 94.7… 
Home Range and Habitat Selection of an Inland Alligator (Alligator mississippiensis) Population at the Northwestern Edge of the Distribution Range
The results of this study are largely incongruent with patterns of home-range size and habitat selection reported for the species elsewhere, suggesting that further study of other American Alligator populations at the periphery of the distribution range is warranted.
How Doth the Little Crocodilian: Analyzing the Influence of Environmental Viscosity on Feeding Performance of Juvenile Alligator mississippiensis
Feeding performance could indicate that prey-capture is not altered by environmental viscosity or that feeding behavior can mitigate its influence, and behavioral differences were observed during feeding events with alligators approaching underwater prey having their mouths partially opened versus fully closed when feeding above water.
Blood and Plasma Biochemistry Reference Intervals for Wild Juvenile American Alligators (Alligator mississippiensis)
Results indicate a significant correlation between a calculated body condition index and aspartate aminotransferase and creatine kinase and baseline data should provide baseline data for evaluating wild juvenile alligators in the northern portion of their range.
Modest Regulation of Digestive Performance Is Maintained through Early Ontogeny for the American Alligator, Alligator mississippiensis
Across these three age classes, the modest regulation of digestive performance with feeding and fasting for alligators appears to be ontogenetically conserved.
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".
Bald Eagle Predation by an American Alligator
The first observation of Bald Eagle predation by an alligator is reported here, and it is reported that a recently fledged Bald Eagle fly approximately 75 m from a 1.
The relationship between diet and tooth complexity in living dentigerous saurians
  • K. Melstrom
  • Environmental Science, Geography
    Journal of morphology
  • 2017
Investigating the relationship between phenotypic tooth complexity and diet in living reptiles by examining the entire dentary tooth row in over 80 specimens demonstrates that OPCR, when combined with additional morphological data, has the potential to be used to reconstruct the diet of extinct amniotes.
Stilts do not protect against crawlers: Limpkins preyed on by Tegu Lizards at an urban park
This report reports on two Limpkin killed and eaten by Black and White Tegus at an urban park in southeastern Brazil, which is a rare occurrence.
Ontogenetic bite‐force modeling of Alligator mississippiensis: implications for dietary transitions in a large‐bodied vertebrate and the evolution of crocodylian feeding
It is argued that the findings of this study are broadly applicable to crown Crocodylia and reflect an important, but often overlooked, aspect of the crocodylian feeding ecomorphology: littoral, sit-and-wait predation is enhanced by posteroventrally displaced, exceptionally large, and forceful ventral pterygoideus muscles, in particular.


Food Habits of Juvenile American Alligators in the Upper Lake Pontchartrain Estuary
Comparisons of juvenile alligator food habits revealed dietary differences between Louisiana and Florida (P<0.001), possibly due to the different prey available at the two areas.
Fall Foods of Adult Alligators from Cypress Lake Habitat , Lousiana
The major foods eaten by adult-size alligators within cypress lake habitat were determined, finding that invertebrates and terrestrial species were important foods for subadults, while turtles and fish were most important in the diets of larger size classes.
Growth and Condition of American Alligators (Alligator mississippiensis) in an Inland Wetland of East Texas
Overall, subadult alligators within the inland study area exhibited faster growth rates and lower body condition than most other populations studied throughout their range.
Diet and Condition of American Alligators in 4 Florida Lakes
In general, the dominant food type changed from invertebrate to vertebrate with an increase in alligator size, and increasing probability of dominance by the fish food type was associated with better condition.
of Thesis Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Master of Science DIET AND CONDITION OF AMERICAN ALLIGATORS
Habitat Use of American Alligators in East Texas
Abstract The American alligator (Alligator mississippiensis) has made a remarkable recovery throughout its range during the last half-century. In Texas, USA, current inland alligator population and
Alligator Feeding Habits: New Data and a Review
Nutria (Myocastor coypus) and muskrats (Ondatra zibethicus) are the predominant food items of alligators over 1.5 min length in southeastern Louisiana. Our data and a review of the literature on
American alligator food habits in northcentral Florida
Stomachs from 350 American alligators (Alligator mississippiensis) collected in conjunction with 1981-83 experimental harvests on 3 lakes in northcentral Florida were examined for food habits. Common
Alligators as Predators on Terrestrial Mammals
Observations on Cumberland Island, Georgia, revealed regular predation on deer and other mammals by large alligators by large (> 1.8 m total length) alligators, and terrestrial mammals composed a significant proportion of large alligator diets.
Alligator Diets on the Sabine National Wildlife Refuge, Louisiana
A total of 413 alligator (Alligator mississippiensis) stomachs collected in 1961, 1962, and 1964 from Sabine National Wildlife Refuge, Louisiana, were examined for food contents. Crustaceans and