Results 41 to 50 of about 2,242 (113)

Acoustic estimation of the manatee population and classification of call categories using artificial intelligence

Frontiers in Conservation Science
The population sizes of manatees in many regions remain largely unknown, primarily due to the challenging nature of conducting visual counts in turbid and inaccessible aquatic environments.
Sebastian Schneider, Lorenzo von Fersen, Paul Wilhelm Dierkes   +2 more
doaj   +1 more source

Manatee calf call contour and acoustic structure varies by species and body size

Scientific Reports, 2022
Vocal activity and signal characteristics of mammals are driven by several factors that result in both stability and plasticity over multiple time scales.
Beth Brady, Eric Angel Ramos, Laura May-Collado, Nelmarie Landrau-Giovannetti, Natalija Lace, Maria Renee Arreola, Gabriel Melo Santos, Vera Maria Ferreira da Silva, Renata S. Sousa-Lima   +8 more
doaj   +1 more source

FROM THERE TO HERE: USING PHOTOGRAPHY TO EXPLORE PERSPECTIVES OF RESETTLED REFUGEE YOUTH

International Journal of Child, Youth & Family Studies, 2012
Because refugee numbers are much smaller than those of other immigrant populations in the United States, researchers frequently group refugees with other immigrants in their studies.
Jody Lynn McBrien, Rebecca Day
doaj   +1 more source

A multi-decadal aerial survey reveals patterns in manatee abundance and response to seagrass die-offs

Frontiers in Marine Science
Florida manatees (Trichechus manatus latirostris) are challenged by human alteration of landscapes and waterways. Coastal eutrophication has increased the frequency and intensity of Indian River Lagoon (IRL) algal blooms, promoting seagrass die-offs in ...
Douglas M. Scheidt, Jane A. Provancha, Eric D. Stolen, David R. Breininger, Resa A. Cancro, Russell H. Lowers, Eric A. Reyier, Bonnie J. Ahr   +7 more
doaj   +1 more source

First field-based estimate of Antillean manatee abundance in the San Pedro River system suggests large errors in current estimates for Mexico

Ciencias Marinas, 2017
Fluvial-lagoon systems like the San Pedro River, a tributary of the Usumacinta River, are important habitats for Antillean manatees. These systems are characterized by complex watercourses that contain water with high turbidity levels, which have ...
Gissel Puc-Carrasco, Benjamín Morales-Vela, León David Olivera-Gomez, David González-Solís   +3 more
doaj   +1 more source

Sighting demographics of the West Indian manatee Trichechus manatus in the north-central Gulf of Mexico supported by citizen-sourced data

Endangered Species Research, 2017
Traditional research methods are often limited in their ability to capture broad spatial and temporal changes in species distribution that affect global patterns of biodiversity.
Hieb, EE, Carmichael, RH, Aven, A, Nelson‑Seely, C, Taylor, N   +4 more
doaj   +1 more source

Third Grade Manatee Curriculum—Lesson 3: Manatee Adaptations

EDIS, 2015
This 3-page fact sheet is the third lesson of the Third Grade Manatee Workbook series. This curriculum provides a series of individual lessons covering manatee biology and ecology, as well as highlighting some of the ways that humans impact and can ...
Alexis Morris, Maia McGuire, Ruth Francis-Floyd   +2 more
doaj   +1 more source

Correction to: Field evaluation of WALS truck-mounted A1 super duty mist sprayer® with VectoBac® WDG against Aedes aegypti (Diptera:Culicidae) populations in Manatee County, Florida

SN Applied Sciences, 2022
Katie F. Williams, Samantha Ramirez, Christopher R. Lesser   +2 more
doaj   +1 more source

Third Grade Manatee Curriculum—Introduction

EDIS, 2015
This 2-page fact sheet is the introduction to the Third Grade Manatee Workbook series. This curriculum provides a series of individual lessons covering manatee biology and ecology, as well as highlighting some of the ways that humans impact and can ...
Ruth Francis-Floyd, Maia McGuire
doaj   +1 more source

Morphology, morphometry and ultrastructure of the Amazonian manatee (Sirenia: Trichechidae) spermatozoa

Zoologia (Curitiba), 2010
This study describes the morphological, morphometric and ultrastructural characteristics of the Amazonian manatee Trichechus inunguis (Natterer, 1883) spermatozoon. The spermatozoa were obtained from a urine sample of an adult T.
Rodrigo S. Amaral, Carolina M. Lucci, Fernando C. W. Rosas, Vera M. F. da Silva, Sônia N. Báo   +4 more
doaj   +1 more source