Browsing Investigación ambiental by Author "León, Yolanda M."
-
Forest change within and outside protected areas in the Dominican Republic, 2000-2016
Lloyd, John D.; León, Yolanda M. (2019)[English] We used Landsat-based estimates of tree cover change to document the loss and gain of forest in the Dominican Republic between 2000 and 2016. Overall, 2,795 km2 of forest were lost, with forest gain occurring on ... -
Genetic analysis of juvenile hawksbills from a feeding ground in the Dominican Republic
Carreras de León, Rosanna; Sofía, Denise; Vélez-Zuazo, Ximena; León, Yolanda M. (2010)Póster presentado en el XXX International Symposium on Sea Turtle Biology and Conservation, Goa, India que resume los resultados de un análisis genético de las tortugas carey en la República Dominicana. -
Green Iguanas (Iguana iguana) in the Dominican Republic
Pasachnik, Stesha A.; Carreras de León, Rosanna; Reynoso, Víctor Hugo; Rupp, Ernst; León, Yolanda M.; Incháustegui, Sixto J. (2012)This species was unknown from the Dominican Republic until the early 1990s when Green Iguanas began to be sold as pets. From 10 February through 9 March 2012, we conducted a series of interviews in local communities ... -
Horas de éxodo y estacionalidad de los murciélagos en cuatro cuevas de República Dominicana
Núñez-Novas, Miguel S.; León, Yolanda M.; Mateo, Jeannette; Dávalos, Liliana M. (2014)Se estudiaron los patrones de emergencia y estados reproductivos de las poblaciones de murciélagos en cuatro cuevas de la República Dominicana. Se capturó un total de 12 especies: Mormoops blainvillei, Pteronotus parnellii, ... -
Impacto de las aguas superficiales en el aumento del nivel de las aguas del Lago Enriquillo
Miniño Mejía, Virgilio Antonio; León, Yolanda M.; Quintana Pérez, Cándido E. (2018)[Español] A partir del 2014 el lago Enriquillo, localizado en el suroeste de la República Dominicana, empezó a evidenciar un continuo crecimiento en el nivel de sus aguas llegando, de 265 km2 hasta alrededor de 375 km2. ... -
In-water surveys for sea turtles in two national parks of the Dominican Republic
León, Yolanda M.; Diez, Carlos E.; Aucoin, Serge; Domínguez, Elianny (2007)Since 1996, in-water sea turtle research in the Dominican Republic has been conducted exclusively in the area of Jaragua National Park in the southwestern part of the country. Beginning in 2005, ... -
Interacciones del solenodonte con otros animales
Rupp, Ernst; Matos Arache, Jairo; Féliz, Gerson; Erdbrügger, Jana; Fetzer, Jasmin; León, Yolanda M. (2011)Entre 2004 y 2009 se realizaron viajes de campo y entrevistas a informantes clave para documentar la distribución del soledononte y la jutía de la Española en la Reserva de la Biosfera Jaragua-BahorucoEnriquillo (República ... -
Migratory patterns in hawksbill turtles described by satellite tracking
Hawkes, L. A.; Tomás, Jesús; Revuelta, Ohiana; León, Yolanda M.; Blumenthal, J. M.; Broderick, A. C.; Fish, M.; Raga, Juan A.; Witt, M. J.; Godley, B. J. (2012)The advent of telemetry has improved knowledge of the spatio-temporal distribution of marine species of conservation concern. Among the sea turtles, the movements of the hawksbill turtle Eretmochelys imbricata are among ... -
Monitoreo de tortugas marinas en la Reserva de la Biosfera Jaragua-Bahoruco-Enriquillo, República Dominicana : informe de actividades 2008-2010
León, Yolanda M.; Feliz, Pablo; Tomás, Jesús; Revuelta, Ohiana (2010)Este informe presenta los resultados del monitoreo de las tortugas marinas iniciado en 2006 en el Parque Nacional Jaragua y Cabo Rojo (República Dominicana), comprendiendo el trabajo realizado en las playas de anidación y ... -
Monitoring and mapping broadleaf mountain forests of southern Sierra de Bahoruco, Dominican Republic
León, Yolanda M.; Garrido, Esteban; Almonte, Jesús (2013)One of the most important wintering regions for Bicknell’s Thrush (Catharus bicknelli) in the Dominican Republic is Bahoruco National Park, which is also a core area within the Jaragua-Bahoruco-Enriquillo Biosphere Reserve. ... -
Nidificacion reciente del flamenco (Phoenicopterus ruber) en Republica Dominicana
Garrido, Esteban; León, Yolanda M.; Arias, Yvonne; Perdomo, Laura (2010)Documentamos un sitio de anidación recientemente activo del flamenco (Phoenicopterus ruber) para la zona de Bucán de Base, en el suroeste de la República Dominicana. En los últimos 30 años, no se había reportado nidificación ... -
Photo-identification of juvenile hawksbills using facial scales
Féliz, Pablo; León, Yolanda M.; Revuelta, Ohiana; Aucoin, Serge; Sofía, Denise; Carreras de León, Rosanna (2010)The ability to identify individuals within a population is a key issue for most behavioral, ecological and conservation studies. Most sea turtle mark-recapture studies use external flipper tags (metal or plastic) previously ... -
Population structure of hawksbill turtles on a foraging ground in the Dominican Republic
León, Yolanda M.; Diez, Carlos E. (1999)A foraging hawksbill turtle (Eretmochelys imbricata) population in the southwestern Dominican Republic, at Jaragua National Park and Cabo Rojo, was predominantly composed of juveniles and sub-adults with a sex ratio heavily ... -
Preliminary data on hawksbill turtle (Eretmochelys imbricata) bycatch in an artisanal gillnet used near Jaragua National Park, Dominican Republic
Aucoin, Serge; León, Yolanda M. (2008)[English] Bycatch is a significant issue affecting fisheries management today and the incidental mortality of sea turtles in many fisheries is an important and often controversial conservation problem. Empirical data on ... -
Protected areas host important remnants of marine turtle nesting stocks in the Dominican Republic
Revuelta, Ohiana; León, Yolanda M.; Feliz, Pablo; Godley, Brendan J.; Raga, Juan A.; Tomás, Jesús (2012)Nesting by marine turtles in the Caribbean has declined considerably, mainly because of human exploitation, but there has previously been no monitoring in the Dominican Republic. We present the first detailed assessment ... -
¿Quién es el misterioso Diablotín?
León, Yolanda M.; Rupp, Ernst (2022)El petrel de cabeza negra o Diablotín, ave endémica del Caribe, enfrenta muchas amenazas potenciales para su existencia continua, incluida la invasión humana, deforestación, modificación agrícola, exploración y el desarrollo ... -
Recent nesting of the Caribbean flamingo in the Dominican Republic
Garrido, Esteban; Méndez, Mildred D.; León, Yolanda M.; Arias, Yvonne; Perdomo, Laura (2011)Este material de conferencia documenta un sitio de anidación del flamenco (Phoenicopterus ruber) para la zona de Bucán de Base, en el suroeste de la República Dominicana. En los últimos 30 años, no se había reportado ... -
Records of the cave-dwelling bats (Mammalia: Chiroptera) of Hispaniola with an examination of seasonal variation in diversity
Núñez-Novas, Miguel S.; León, Yolanda M.; Mateo, Jeannette; Dávalos, Liliana M. (2016)Despite a long history of scientific collection of bats, Hispaniola remains the least studied island of the Greater Antilles. Using standardized trapping methods during the wet and dry season at four major caves — Honda ... -
Sea turtle conservation in the Dominican Republic : the importance of national parks
Tomás, Jesús; Godley, Brendan J.; León, Yolanda M.; Revuelta, Ohiana; Raga, Juan A. (2011)Despite the existence, since 1962, of Dominican laws for the protection of sea turtles, hawksbills are captured frequently for the use of meat and carapace for the tortoiseshell trade. These threats mandate urgent action ... -
Selective feeding in the hawksbill turtle, an important predator in coral reef ecosystems
León, Yolanda M.; Bjorndal, Karen A. (2002)We evaluated selective feeding in hawksbill turtles Eretmochelys imbricata by comparing ingested prey species with their availability at 2 sites in the South West Dominican Republic.