Author: Everglade Kite Recovery TeamPublisher:
ISBN:
Category : Accipitridae
Languages : en
Pages : 66
Book Description
Florida Snail Kite (Rostrhamus Sociabilis Plumbeus Ridgway)
Author: Everglade Kite Recovery TeamPublisher:
ISBN:
Category : Accipitridae
Languages : en
Pages : 66
Book Description
Climatological Factors Affecting the Foraging Behavior and Ecology of Snail Kites (Rostrhamus Sociabilis Plumbeus Ridgway) in Florida
Author: Daniel M. CaryPublisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 116
Book Description
The Breeding Ecology of Endangered Snail Kites (Rostrhamus Sociabilis Plumbeus) on a Primary Nesting Site in Central Florida, USA
Author: Jean M. OlbertPublisher:
ISBN:
Category :
Languages : en
Pages : 135
Book Description
The snail kite (Rostrhamus sociabilis plumbeus) is a federally endangered raptor whose population in Florida has recently undergone precipitous declines. The remaining population remains heavily dependent upon the Kissimmee Chain of Lakes in central-Florida for nesting, particularly Lake Tohopekaliga. These lakes are subject to many anthropogenic influences, including water and vegetation management. Understanding what affects snail kite nest success on Lake Tohopekaliga will help sustain breeding activity on this highly managed system. I studied causes of nest failure, habitat influences on nest success, and snail kite breeding behavior in response to temperature stress on Lake Tohopekaliga during the 2010 and 2011 breeding season. Predation was found to be the primary cause of nesting failure, with the yellow rat snake (Elaphe obsoleta quadrivittata) as the most common predator. Additionally, results indicate that habitat characteristics of snail kite nesting areas were found to have an effect on predation events with different predators influenced by different habitat variables. For some terrestrial predators nest access was affected by distance of the nest patch to the shore, water depth, and nest height. Aquatic predators were influenced by distance of the nest patch to shore, water depth, and minimum daily temperature. Finally, it was determined that kites responded to the historically cold temperatures in 2010 by delaying their breeding season until conditions allowed for them to provision their young at a consistent rate.
Foraging Ecology of Breeding Snail Kites (Rostrhamus Sociabilis Plumbeus) on Lake Tohopekaliga, Florida, USA
Author: Kyle E. PiasPublisher:
ISBN:
Category :
Languages : en
Pages : 91
Book Description
In the Unites States the snail kite (Rostrhamus sociabilis plumbeus) is a federally endangered species whose population in Florida has undergone recent declines. The remaining population is heavily dependent upon the Kissimmee Chain of Lakes in central-Florida, particularly Lake Tohopekaliga (Lake Toho). This study will focus on how breeding snail kites use the lakeshore of habitat Lake Toho for foraging. I studied foraging behavior of breeding snail kites on Lake Toho by conducting observations on radio-tagged snail kites. I calculated 90% kernel home ranges using a kernel density estimator and quantified foraging habitat within the home ranges. Snail kite foraging behaviors were compared between foraging substrate communities to make inferences regarding the availability of snails in each community type. The patterns of foraging substrate use were also examined in regards to lake levels and time. My results indicate that foraging substrates that occur off the main body of Lake Toho may have higher snail availabilities, but that snail kite nests built in off-lake areas may be more vulnerable to predation. Therefore, in spite of relatively lower snail availabilities, foraging substrates that occur on Lake Toho may be more valuable to snail kites than off-lake areas. The availability of snails in on-lake foraging substrates is likely driven in part by water levels, highlighting the role of water management in maintaining foraging habitat for breeding snail kites.
Fate of Artificially Supported Snail Kite Rostrhamus Sociabilis Nests in Central Florida, U.S.A.
Author: James Albert RodgersPublisher:
ISBN:
Category : Birds
Languages : en
Pages : 5
Book Description
Effects of the Invasive Exotic Apple Snail (Pomacea Insularum) on the Snail Kite (Rostrhamus Sociabilis Plumbeus) in Florida, USA
Author: Christopher CattauPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
In fact, we found that adult kites are attracted to Lake Tohopekaliga and that the relative contribution of the lake to the range-wide nesting effort increased from 6% to 33% after the invasion of the exotic snail. Conversely, the effects of the exotic snail on juvenile foraging behavior can lead to insufficient daily energy balances and may suppress juvenile survival. Given the critically endangered status of the snail kite and the propensity of the exotic apple snail to spread, this work suggests that serious management and conservation initiatives that address the exotic apple snail may be necessary to prevent further deleterious consequences for the kite population in Florida.
Everglade Kite Recovery Plan
Author: Everglade Kite Recovery TeamPublisher:
ISBN:
Category : Accipitridae
Languages : en
Pages : 72
Book Description
U.S. Geological Survey Program on the South Florida Ecosystem
Author: Sarah GerouldPublisher:
ISBN:
Category : Ecosystem management
Languages : en
Pages : 136
Book Description
Rare and Endangered Fish and Wildlife of the United States
Author: United States. Committee on Rare and Endangered Wildlife SpeciesPublisher:
ISBN:
Category : Rare animals
Languages : en
Pages : 274
Book Description
Quantifying Habitat and Apple Snail (pomacea Paludosa) Density Effects on Prey Availability to Snail Kites (rostrhamus Sociabilis Plumbeus)
Author: Philip Michael CoppolaPublisher:
ISBN:
Category :
Languages : en
Pages : 89
Book Description
ABSTRACT: Everglades restoration efforts rely on quantitative data when modelling the effects of management on endangered wildlife populations. The focus of this study was to quantify the influence of environmental factors on Florida apple snail (Pomacea paludosa) availability to snail kites (Rostrhamus sociabilis plumbeus) within the Everglades. A mesocosm study with observations of live apple snails was performed within Everglades wetlands to determine the influence of water depth, water temperature, dissolved oxygen, and emergent vegetation structure on the proportion of apple snails available to foraging snail kites. In addition, a study analyzing snail kite prey species (native P. paludosa versus exotic P. maculata) and size preference was performed. The proportion of apple snails available to kites was most influenced by water depth and temperature, where warm, shallow water contained the highest proportion of snails available. Emergent vegetation did not affect snail surfacing behavior; however, it did influence the relative detectability of snails. Snail kites preferentially consumed intermediate-sized snails and showed no species preference. This study supports the recommendation that demographic modeling of Everglades-dependent wildlife should incorporate the most ecologically-pertinent parameters. Estimates of snail availability can be used to link two thus far-independent simulation models for snail kite and apple snail populations.