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Cambios en el uso del suelo y sus efectos a diferentes escalas espaciales y temporales sobre la diversidad de aves en el Bajo Delta del río Paraná
Sica, Yanina (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 2016-03)Las actividades humanas han modificado una gran proporción de la superficie terrestre. Sus impactos son extensos en particular sobre la biodiversidad y los bienes y servicios que proveen los ecosistemas. Los humedales son ... -
Changes in bird assemblages in a wetland ecosystem after 14 years of intensified cattle farming
Sica, Yanina; Gavier Pizarro, Gregorio Ignacio; Pidgeon, Anna Michle; Travaini, Alejandro; Bustamante, Javier; Radeloff, Volker C.; Quintana, Rubén D. (2018-05)Human activities have modified wetlands all over the word. Water control structures that are frequently implemented in these ecosystems to keep lands free of flooding can decrease or degrade habitat for biodiversity. The ... -
Early genetic consequences of defaunation in a large-seeded vertebrate-dispersed palm (Syagrus romanzoffiana)
Giombini, Mariano Ignacio; Bravo, Susana Patricia; Sica, Yanina; Tosto, Daniela Sandra (2017)Plant populations are seriously threatened by anthropogenic habitat disturbance. In particular, defaunation may disrupt plantdisperser mutualisms, thus reducing levels of seed-mediated gene flow and genetic variation in ... -
Spatial pattern of Pindó Palm (Syagrus romanzoffiana) recruitment in Argentinian atlantic forest: the importance of tapir and effects of defaunation
Sica, Yanina; Bravo, Susana Patricia; Giombini, Mariano Ignacio (Wiley; Association of Tropical Biology and Conservation, 2014-11)Hunting pressure, fragmentation and deforestation have caused global declines in animal abundance, and the consequences for plant communities are poorly understood. Many large‐seeded plants, for instance, depend on large ... -
Wetland Bird Response to Habitat Composition and Configuration at Multiple Spatial Scales
Sica, Yanina V.; Quintana, Ruben D.; Bernardos, Jaime Nicolás; Calamari, Noelia Cecilia; Gavier Pizarro, Gregorio Ignacio (Springer, 2020-09-23)Wetlands loss has major consequences for biodiversity. The Delta of Paraná River is one of the largest wetland ecosystems in South America undergoing rapid conversion of freshwater marshes to pastures. We evaluated the ...