Results 41 to 50 of about 288,076 (191)
Efectos de los atributos de la hembra de ñandú (Rhea americana) sobre la viabilidad del huevo [PDF]
, 2019 We conducted a study throughout a breeding season in a captive-bred population of Greater rheas (Rhea americana) to evaluate the association between egg viability and the female´s body weight and age.
Bazzano, Gisela del Valle +3 more
core
Sobreposição de nicho e partilha de recursos entre cinco espécies simpátricas de bufonídeos (Anura, Bufonidae) do nordeste da Argentina [PDF]
, 2009 The niche overlap and resource partitioning were analyzed for five sympatric bufonids from Northeastern Argentina: Rhinella schneideri, R. bergi, R. fernandezae, R. granulosa, and Melanophryniscus cupreuscapularis.
Duré Pitteri, Marta Inés +2 more
core +2 more sources
Ecología de Dickinsonia en llanuras mareales
, 2019 Specimens of Dickinsonia from the Central Urals are characterised by clear bilateral symmetry. Taking into account observations from Australian specimens, we consider that the so called ‘glide reflection symmetry’ in these fossils is a taphonomic ...
N. G. Sozonov +4 more
semanticscholar +1 more source
The significance of cytogenetics for the study of karyotype evolution and taxonomy of water bugs (Heteroptera, Belostomatidae) native to Argentina [PDF]
, 2013 Male meiosis behaviour and heterochromatin characterization of three big water bug species were studied. Belostoma dentatum (Mayr, 1863), B. elongatum Montandon, 1908 and B. gestroi Montandon, 1903 possess 2n = 26 + X1X2Y (male).
Bressa, Maria Jose +2 more
core +2 more sources
Ecología Política Latinoamericana
Polis (Santiago), 2019 La crisis ambiental y ecológica que amenaza la existencia de la vida en el planeta es un fenómeno indesmentible, tal como se puede constatar en diversos estudios y trabajos realizados por organismos internacionales, agencias multilaterales, universidades,
Fernando de la Cuadra, A. Hevia
semanticscholar +1 more source
Diversity of amphibians in rice fields from northeastern Argentina [PDF]
, 2008 Se registró y analizó la diversidad y riqueza de una comunidad de anfibios que habita campos de arroz en el nordeste de Ar.gentina. Las muestras fueron obtenidas en el período comprendido entre octubre 2001 y junio 2003.
Duré Pitteri, Marta Inés +3 more
core
High levels of human infection with Trypanosoma cruzi associated with the domestic density of infected vectors and hosts in a rural area of northeastern Argentina [PDF]
, 2018 Background: Insecticide spraying campaigns designed to suppress the principal vectors of the Chagas disease usually lack an active surveillance system that copes with house reinvasion.
Cardinal, Marta Victoria +5 more
core +2 more sources