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538 results on '"MAZZOTTI, FRANK J."'

104. Size distribution and reproductive phenology of the invasive Burmese python (Python molurus bivittatus) in the Greater Everglades Ecosystem, Florida, USA.

Author

Currylow, Andrea F., Falk, Bryan G., Adams, Amy A. Yackel, Romagosa, Christina M., Josimovich, Jillian M., Rochford, Michael R., Cherkiss, Michael S., Nafus, Melia G., Hart, Kristen M., Mazzotti, Frank J., Snow, Ray W., and Reed, Robert N.

Subjects
PYTHONS, BIRD populations, PHENOLOGY, LIFE history theory, BODY size, INTRODUCED species
Abstract

The design of successful invasive species control programs is often hindered by the absence of basic demographic data on the targeted population. Establishment of invasive Burmese pythons (Python molurus bivittatus) in the Greater Everglades Ecosystem, Florida USA has led to local precipitous declines (> 90%) of mesomammal populations and is also a major threat to native populations of reptiles and birds. Efforts to control this species are ongoing but are hampered by the lack of access to and information on the expected biological patterns of pythons in southern Florida. We present data from more than 4,000 wild Burmese pythons that were removed in southern Florida over 26 years (1995-2021), the most robust dataset representing this invasive population to date. We used these data to characterize Burmese python size distribution, size at maturity, clutch size, and seasonal demographic and reproductive trends. We broadened the previously described size ranges by sex and, based on our newly defined size-stage classes, showed that males are smaller than females at sexual maturity, confirmed a positive correlation between maternal body size and potential clutch size, and developed predictive equations to facilitate demographic predictions. We also refined the annual breeding season (approx.100 days December into March), oviposition timing (May), and hatchling emergence and dispersal period (July through October) using correlations of capture morphometrics with observations of seasonal gonadal recrudescence (resurgence) and regression. Determination of reproductive output and timing can inform population models and help managers arrest population growth by targeting key aspects of python life history. These results define characteristics of the species in Florida and provide an enhanced understanding of the ecology and reproductive biology of Burmese pythons in their invasive Everglades range. [ABSTRACT FROM AUTHOR]

Published
2022
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107. Additional file 1 of Accelerometry to study fine-scale activity of invasive Burmese pythons (Python bivittatus) in the wild

Author

Whitney, Nicholas M., White, Connor F., Smith, Brian J., Cherkiss, Michael S., Mazzotti, Frank J., and Hart, Kristen M.

Abstract

Additional file 1: Figure S1. Comparison of four separate metrics of acceleration calculated from values sampled at 5 Hz versus the same metrics calculated from data that had been downsampled to 1 Hz. All comparisons produced highly similar (R2 > 0.97) results between sampling rates, justifying our use of a 1 Hz sampling interval for deployments on pythons.

Published
2021
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119. The ecological importance of crocodylians: towards evidence‐based justification for their conservation

Author

Somaweera, Ruchira, primary, Nifong, James, additional, Rosenblatt, Adam, additional, Brien, Mathew L., additional, Combrink, Xander, additional, Elsey, Ruth M., additional, Grigg, Gordon, additional, Magnusson, William E., additional, Mazzotti, Frank J., additional, Pearcy, Ashley, additional, Platt, Steven G., additional, Shirley, Matthew H., additional, Tellez, Marisa, additional, Ploeg, Jan, additional, Webb, Grahame, additional, Whitaker, Rom, additional, and Webber, Bruce L., additional

Published
2020
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132. NERODIA CLARKII (Saltmarsh Watersnake).

Author

DAYKIN, BRYNA L., GODFREY, SIDNEY T., CHERKISS, MIKE S., BLAKEMORE, GARETH, and MAZZOTTI, FRANK J.

Subjects
CICONIIFORMES
Abstract

The article focuses on predation of Nerodia clarkii and a suspected hybrid by Crocodylus acutus (American Crocodile) in South Florida, USA, providing a rare observation of predation on this species, with only two previously published instances documented.

Published
2023

133. A communal nesting site of the Central American river turtle (Dermatemys mawii) along the New River, Belize.

Author

JENNINGS, NICOLE D., GATI, EMILY V., RAMIREZ, GERSON A., COLE, JENNA, MASON, BRITTANY, BRIGGS-GONZALEZ, VENETIA, and MAZZOTTI, FRANK J.

Abstract

The Central American river turtle, Dermatemys mawii, is a critically endangered species with declines in its population caused by human harvest. Previous knowledge of nesting behaviour is minimal, and communal nesting of D. mawii has not been described previously. Here we report the first observations of communal nesting of D. mawii and provide recommendations to researchers and conservationists on how to find D. mawii nests, based on observed communal nesting conditions, proximity to water, hydro-period, and vegetative cover. [ABSTRACT FROM AUTHOR]

Published
2020
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134. Novel ecological and climatic conditions drive rapid adaptation in invasive Florida Burmese pythons

Author

Card, Daren C., primary, Perry, Blair W., additional, Adams, Richard H., additional, Schield, Drew R., additional, Young, Acacia S., additional, Andrew, Audra L., additional, Jezkova, Tereza, additional, Pasquesi, Giulia I.M., additional, Hales, Nicole R., additional, Walsh, Matthew R., additional, Rochford, Michael R., additional, Mazzotti, Frank J., additional, Hart, Kristen M., additional, Hunter, Margaret E., additional, and Castoe, Todd A., additional

Published
2018
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139. CROCODYLUS ACUTUS.

Author

DAYKIN, BRYNA L., GODAHEWA, AVISHKA, GODFREY, SIDNEY T., JENNINGS, NICOLE D., MAZZOTTI, FRANK J., SMITH, CHRISTOPHER D., and WEBB, GRAHAME J. W.

Abstract

The article focuses on Crocodylus acutus, the American Crocodile, and the phenomenon of tail regeneration, documenting two cases of caudal regeneration in this species in south Florida, U.S.

Published
2023

142. Population assessment of the American crocodile, Crocodylus acutus (Crocodilia: Crocodylidae) on the Pacific coast of Costa Rica

Author

Mauger, Laurie A., Velez, Elizabeth, Cherkiss, Michael S., Brien, Matthew L., Boston, Michael, Mazzotti, Frank J., and Spotila, James R.

Subjects
Costa Rica, Crocodylus acutus, size class distribution, cocodrilo Americano, crocodylus acutus, population surveys, costa rica, lcsh:Biology (General), american crocodile, cocodrilo americano, distribución por clases de tamaño, lcsh:QH301-705.5, promedio de encuentros, encounter rates, American crocodile
Abstract

The American crocodile, Crocodylus acutus, is widely distributed in the American neotropics. It is endangered throughout most of its range and is listed as vulnerable by the International Union for the Conservation of Natural Fauna and Flora (IUCN) and on Appendix I of the Convention for the International Trade in Endangered Species of Wild Flora and Fauna (CITES). Despite this listing, there are few published reports on population status throughout most of its range. We investigated the status of the C. acutus, at several locations along the Pacific coast of Costa Rica. We carried out spotlight and nesting surveys from 2007-2009 along the Costa Rican Pacific coast in four distinct areas, coastal areas of Las Baulas (N=40) and Santa Rosa (N=9) National Parks and the Osa Conservation Area (N=13), and upriver in Palo Verde National Park (N=11). We recorded crocodile locations and standard environmental data at each observation. Encounter rates, popula- tion structure, distribution within each area and data on successful nesting (presence of hatchlings, nests, etc) were determined. We attempted to capture all crocodiles to record standard morphometrics. A total of 586 croco- diles were observed along 185.8km of survey route. The majority of animals encountered (54.9%) were either hatchlings (

Published
2012
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143. A new parameterization for estimating co-occurrence of interacting species

Author

Hardin Waddle, J., Dorazio, Robert M., Walls, Susan C., Rice, Kenneth G., Beauchamp, Jeff, Schuman, Melinda J., and Mazzotti, Frank J.

Subjects
Parameter estimation -- Usage, Predation (Biology) -- Research, Hyla -- Environmental aspects, Hyla -- Protection and preservation, Multilevel analysis -- Usage, Biological sciences, Environmental issues
Published
2010

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