Characterization of Natural and Artificial Alligator Holes

  title={Characterization of Natural and Artificial Alligator Holes},
  author={M. R. Campbell and Frank J. Mazzotti},
Abstract American Alligators (Alligator mississippiensis Daudin) are ecological engineers who alter the Everglades landscape through creation and maintenance of small ponds, called alligator holes, that play a key ecological role by providing both drier and wetter habitats for other organisms. The objective of this study was to compare morphology, vegetation, and activity of alligators in twenty natural and nine man-made alligator holes in ridge and slough wetlands of the central Everglades… 

Spatial Distribution of Alligator Holes in the Central Everglades

There were fewer alligator holes within 1000 m of canals than expected, supporting the hypothesis that Alligator mississippiensis (American Alligator) are using canals as aquatic refugia rather than creating or maintaining alligatorholes in the marsh.

Morphometric and hydrologic characteristics of alligator holes in Everglades National Park, Florida from 1994 to 2007

Alligator (Alligator mississippiensis) holes are a key feature in the Everglades landscape providing aquatic refuge for alligators and other aquatic organisms. The morphology of the hole as well as

Relationship between body condition of American alligators and water depth in the Everglades, Florida

Feeding opportunities of American alligators (Alligator mississippiensis) in freshwater wetlands in south Florida are closely linked to hydrologic conditions. In the Everglades, seasonally and

Alligator presence influences colony site selection of long-legged wading birds through large scale facilitative nest protector relationship

It is predicted that nesting wading birds change colony site preferences when alligators are not present to serve as nest protectors, and this study illustrates how a landscape-scale difference between realized and fundamental niche can result from a facilitative relationship in vertebrates.

Shellfish Reefs Increase Water Storage Capacity on Intertidal Flats Over Extensive Spatial Scales

Ecosystem engineering species can affect their environment at multiple spatial scales, from the local scale up to a significant distance, by indirectly affecting the surrounding habitats. Structural

IUCN-SSC Crocodile Specialist Group Crocodilian Capacity Building Manual

Crocodilians inhabit a wide range of aquatic ecosystems throughout the world from freshwater lakes, swamps, rivers, and wetlands to estuarine and fully marine ecosystems such as tidal rivers,

Disappearing giants: a review of threats to freshwater megafauna

Charismatic megafauna species may act as both flagship and umbrella species. They influence local environments and biotas, determine related ecosystem processes and functions, and are associated with

Nestling carcasses from colonially breeding wading birds: patterns of access and energetic relevance for a vertebrate scavenger community

It is indicated that fallen nestlings can serve as an important source of energy for scavengers at colonial breeding aggregations, particularly in oligotrophic systems.




This study demonstrates that two characteristics of a relatively unimpacted landscape in the central Everglades are higher avian species richness and a more distinct avian community in bayheads than in willowheads or marshes.

Environmental Variability and the Reproductive Success of Everglades Alligators

The results suggest that conser- vation of alligators in the Everglades, and by extension of the everglades wetland ecosystem, depends on restoration of more predictable hydrological fluctuations.

A Study of the Vegetation in the Florida Everglades

The Everglades of southern Florida comprises one of the largest freshwater marshes on the North American continent and contains the largest single body of organic soils in the world and a study on the vegetation of the area was conducted in order that wildlife might be properly managed.


Only two long-term, quantitative studies of Everglades freshwater fishes have been conducted, both in the Eleocharrj marshes of the sourhern Everglades within Everglades National Park. Each study

Effects of Nutrients and Hydroperiod on Typha, Cladium, and Eleocharis: Implications for Everglades Restoration

Results from this study suggest that attempts to limit the spread of Typha should consider hydrologic restoration as well as reduction in surface water nutrients, which would seem to be well suited to the nutrient- poor, hydrologically unstable conditions natural to the Everglades.

Animal Influences on Ecosystem DynamicsLarge animals are more than passive components of ecological systems

It is clear from their descriptions, and those of Bates (1863) for the Amazon River basin and Bartram (1791), Hays (1871), and Morgan (1868) for North America, that animals had strong interactions with the ecosystems supporting them.

Organisms as ecosystem engineers

The role that many organisms play in the creation, modification and maintenance of habitats does not involve direct trophic interactions between species, but they are nevertheless important and common.

Applied Nonparametric Statistics

Applied nonparametric statistics , Applied nonparametric statistics , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی