Results 51 to 60 of about 4,041 (199)
Using Aerial Photogrammetry to Estimate Body Condition and Assess Sexual Dimorphism in Narwhals
Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT The Arctic is warming rapidly, impacting ice‐dependent species and communities that rely on them for resources. Body condition indices (BCI) are widely used to assess individual health within populations. We adapted the methodology to improve accessibility for estimating narwhal body condition from drone footage, using body length, body width,
Kirsten J. Désorcy +4 more
wiley +1 more source
Breaking Constraint: Axial Patterning in Trichechus (Mammalia: Sirenia) [PDF]
, 2014 Meristic variation is often limited in serially homologous systems with high internal differentiation and high developmental modularity. The mammalian neck, an extreme example, has a fixed (at seven) count of diversely specialized segments. Imposition of
Wayrynen, Kaisa L. +2 more
core
Acta Biológica Colombiana, 2001 Los manatíes son mamíferos acuáticos de gran tamaño. Estos animales poseen hábitatsrestringidos y con características particulares. Para Colombia se han detectado poblacionesmuy bajas y dada la ubicación de estos mamíferos en grupos aislados en sistemas ...
MA. Vargas, ML. Bueno
doaj
Revista de Investigaciones Marinas, 2023 Se presentan dos especies de crustáceos asociados a la piel del manatí Trichechus manatus, en una localidad de la costa noroccidental cubana. Un cirripedio del género Chelonibia (Cirripedia, Sessillia) y un tanaidáceo del género Sinelobus (Crustacea ...
Manuel Ortiz +2 more
doaj
Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT Sirenians are a lineage of herbivorous marine mammals morphologically specialized for exploiting aquatic vegetation in shallow‐water habitats. In manatees (Trichechus), continuous horizontal tooth replacement may represent a solution for mitigating heavy dental wear incurred by a diet of abrasive plant material.
Kayla Huff +2 more
wiley +1 more source
, 2010 The most emblematic mammal in the Alvarado Lagoon System (ALS) is the West Indian manatee (Trichechus manatus manatus). In July 1975 was considered as endangered species by the Convention on International Trade in Endangered Species of Fauna and Flora ...
Sánchez Rojas, Gerardo +2 more
core +1 more source
Revista de Biología Tropical, 1998 La influencia de: temperatura atmosférica y del agua, vientos, nubosidad, profundidad, salinidad, abundancia de pastos y algas, y estructura de grupo; en la distribución espacial de Trichechus manatus manatus, fue estudiada en la Bahía de Chetumal ...
Javier Axis-Arroyo +3 more
doaj
Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT Drone photogrammetry provides a minimally invasive morphometric tool to assess growth and energy reserve in marine mammals. Converting drone‐derived measurements (e.g., body width) into body condition indices (BCIs, residuals from expected body girth, volume, or mass) requires prior knowledge of normative body shape. We developed and validated
Chiaki Yamato +2 more
wiley +1 more source
Trichechus manatus Linnaeus 1758
, 2020 Published as part of Bell, Christopher J., Godwin, William, Jenkins, Kelsey M. & Lewis, Patrick J., 2020, First fossil manatees in Texas, USA: Trichechus manatus bakerorum from Pleistocene beach deposits along the Gulf of Mexico, pp. 1-16 in Palaeontologia Electronica (a 47) (a 47) 23 (3) on page 7, DOI: 10.26879/1006, http://zenodo.org/record ...
Bell, Christopher J. +3 more
openaire +2 more sources
MANEJO Y REHABILITACIÓN DEL MANATÍ AMAZÓNICO (Trichechus inunguis) EN CAUTIVERIO EN EL PERÚ
Ciencia Amazónica (Iquitos), 2011 La caza furtiva de adultos y la comercialización de crías de manatí amazónico o vaca marina Trichechus inunguis en el Perú, especialmente en la selva baja del departamento de Loreto, ha originado la necesidad de contar con normas técnicas apropiadas para
Carlos Marcial Perea Sicchar +5 more
doaj +3 more sources