Research about Southwest Florida

USGS2021

Reconstructing population dynamics of a threatened marine mammal using multiple data sets

Models of marine mammal population dynamics have been used extensively to predict abundance. A less common application of these models is to reconstruct historical population dynamics, filling in gaps in observation data by integrating information from multiple sources. We developed an integrated population model for the Florida manatee ( Trichechus manatus latirostris ) to reconstruct its population dynamics in the southwest region of the state over the past 20 years. Our model improved precision of key parameter estimates and permitted inference on poorly known parameters. Population growth was slow (averaging 1.02; 95% credible interval 1.01–1.03) but not steady, and an unusual mortality event in 2013 led to an estimated net loss of 332 (217–466) manatees. Our analyses showed that precise estimates of abundance could be derived from estimates of vital rates and a few input estimates of abundance, which may mean costly surveys to estimate abundance don’t need to be conducted as frequently. Our study also shows that retrospective analyses can be useful to: (1) model the transient dynamics of age distribution; (2) assess and communicate the conservation status of wild populations; and (3) improve our understanding of environmental effects on population dynamics and thus enhance our ability to forecast.

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USGS1988

Water resources data for Florida, water year 1987. Volume 3A. Southwest Florida-surface water

Water resources data for the 1987 water year in Florida consist of continuous or daily discharge for 320 streams, periodic discharge for 38 streams, miscellaneous discharge for 29 streams, continuous or daily stage for 94 streams, periodic stage for 48 streams, peak discharge for 76 streams and peak stage for 69 streams; continuous. Or daily elevations for 80 lakes, periodic elevations for 74 lakes; continuous ground-water levels for 477 wells, periodic ground-water levels for 562 wells, and miscellaneous water-level measurements for 2886 wells; quality-of-water data for 223 surface-water sites and 900 wells. The data for southwest Florida include records of stage, discharge and water quality of streams; stage, contents, water quality of lakes and reservoirs, and water levels and water quality of ground-water wells. Volume 3A contains continuous or daily discharge for 61 streams, periodic discharge for 5 streams, miscellaneous discharge for 4 streams, continuous daily stage for 22 streams, periodic stage for 2 streams, peak discharge for 16 streams, continuous daily tide stage for 10 sites, continuous elevation for 22 lakes and periodic elevation for 16 lakes, and quality-of-water for 80 surface-water sites. These data represent the National Water Data System records collected by the U. S. Geological Survey and cooperating local, state, and federal agencies in Florida.

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USGS1986

Water resources data, Florida, water year 1984, Volume 3A: Southwest Florida - surface water

Water resources data for the 1984 water year in Florida consist of continuous or daily discharge for 251 streams, periodic discharge for 32 streams, miscellaneous discharge for 43 streams, continuous or daily stage for 92 streams, periodic stage for 31 streams, peak discharge for 60 streams and peak stage for 37 streams; continuous or daily elevations for 73 lakes, periodic elevations for 82 lakes; continuous ground-water levels for 467 wells, periodic ground-water levels for 539 wells, and miscellaneous water-level measurements for 2,039 wells; quality-of-water data for 200 surface-water sites and 596 wells. The data for southwest Florida include continuous or daily discharge for 81 streams, periodic discharge for 15 streams, miscellaneous discharge for 14 streams, peak discharge for 20 streams, continuous or daily stage for 31 streams; continuous elevations for 30 lakes and periodic elevations for 43 lakes; continuous ground-water levels for 231 wells, periodic ground-water levels for 199 wells, and miscellaneous water-level measurements for 799 wells; quality of water for 117 surface-water sites and 289 wells. These data represent the National Water Data System records collected by the U. S. Geological Survey and cooperating local, state and federal agencies in Florida.

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USGS1986

Water resources data, Florida, water year 1984. Volume 3B: Southwest Florida - surface water

Water resources data for the 1984 water year in Florida consist of continuous or daily discharge for 251 streams, periodic discharge for 32 streams, miscellaneous discharge for 43 streams, continuous or daily stage for 92 streams, periodic stage for 31 streams, peak discharge for 60 streams and peak stage for 37 streams; continuous or daily elevations for 73 lakes, periodic elevations for 82 lakes; continuous ground-water levels for 467 wells, periodic ground-water levels for 539 wells, and miscellaneous water-level measurements for 2,039 wells; quality-of-water data for 200 surface-water sites and 596 wells. The data for southwest Florida include continuous or daily discharge for 81 streams, periodic discharge for 15 streams, miscellaneous discharge for 14 streams, peak discharge for 20 streams, continuous or daily stage for 31 streams; continuous elevations for 30 lakes and periodic elevations for 43 lakes; continuous ground-water levels for 231 wells, periodic ground-water levels for 199 wells, and miscellaneous water-level measurements for 799 wells; quality of water for 117 surface-water sites and 289 wells. These data represent the National Water Data System records collected by the U. S. Geological Survey and cooperating local, state and federal agencies in Florida.

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USGS1986

Water resources data, Florida, water year 1985. Volume 3B: Southwest Florida ground water

Water resources data for the 1985 water year in Florida consist of continuous or daily discharge for 285 streams, periodic discharge for 38 streams, miscellaneous discharge 1 for 110 streams, continuous or daily stage for 124 streams, periodic stage for 32 streams, peak discharge for 98 streams and peak stage for 87 streams; continuous or daily elevations for 89 lakes, periodic elevations for 82 lakes; continuous ground-water levels for 473 wells, periodic ground-water levels for 550 wells, and miscellaneous water-level measurements for 2,588 wells; quality-of-water data for 239 surface-water sites and 699 wells. The data for southwest Florida include continuous or daily discharge for 91 streams, periodic discharge for 23 streams, miscellaneous discharge for 57 streams, peak discharge for 20 streams, continuous or daily stage for 30 streams; continuous elevations for 50 lakes and periodic elevations for 39 lakes; continuous ground-water levels for 223 wells, periodic ground-water levels for 146 wells, and miscellaneous water-level measurements for 1,477 wells; quality of water for 146 surface-water sites and 287 wells. These data represent the National Water Data System records collected by the U. S. Geological Survey and cooperating local, state and federal agencies in Florida

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USGS1981

Generalized thickness of the Floridan aquifer, Southwest Florida Water Management District

This map report presents the thickness of the Floridan aquifer in the Southwest Florida Water Management District. The Floridan aquifer ranges in thickness from 600 feet in the northern part of the District to 2,400 feet in the southern part. It is composed chiefly of limestone and dolomite beds that range in age from early Miocene to middle Eocene. For this investigation, the formations considered to be part of the Floridan aquifer are: Lake City and Avon Park Limestones of middle Eocene age; Ocala Limestone of late Eocene age; Suwannee Limestone of Oligocene age; and permeable parts of the Tampa Limestone and Hawthorn Formation of Miocene age that are in hydrologic contact with the rest of the aquifer.

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