A contribution to the knowledge of the social organization of a population of Golden-rumped or Black-lion tamarin (L. chrysopygus) living in a stripe of natural vegetation in the State Park along the banks of the lower Paranapanema River, in the State of São Paulo, Brazil. Its composition and analysis based on captured groups, number of individuals and their distribuition in the area with concentrations; exchange of adults males, migration of individuals from groups and females home range establishment, indicate an organization which is likely to be matrilinear. The average number of individuals per group or expanded families, in the seven (7) captured groups was 3,57 specimens with a mean body weight in adults of 572,5 grams. In each group there is normally one reproducing couple with a double twin pregnancy in 2/3 (65 to 80%) of the occasions, and the twins are dizygotic. This tends to repetition in multiparous females
ABSTRACT. The most frequent endoparasite of the Maned wolf -Oll)'sncyrl/l hrachyllim' (1IIiger. III 15) is the giant kidney-worm. DinclOphyma reI/ale (Goa.e. 17l12). It has heen responsible f,"' the majority of deaths of captive animals.Twenty-six marked wolves have been followed in the lield with ear-tags and radin-~ollar taggl.:u (Tah. II) to inv~stigat~th~ir inkrat..:tions with th~(:nvironlll~nl. their diurnal sheiters. movcments and hahits, and their delivcry siteS. Ten years of lil~history data havl.: ht:t:n gath~r~d. Th~y ar~krritorial and Illollogamou:-.. and givl.:hirth to two or thrt:~young om:~a yt:ar. ali~r a 63 <.lays gestation. on av~rag~. Man~d \Volv~s inhahit tht: t,)p~n ar~as and havt: olnnivorolls f~~ding hahits.
Se dan a conocer en este trabajo observaciones hechas en Belén de Pará, Brasil, acerca de los hábitos alimenticios de murciélagos de la familia Phyllos tomidae, según observaciones hechas en la floresta ecuatorial en el parque del Museo Goeldi. Se comenta la alternancia alimenticia de los murciélagos que parece obedecer a factores cualitativos y no cuantitativos, por una necesidad fisiológica. Se hace un comentario sobre la posible relación entre grupos paleárticos y neotropicales de murciélagos frugívoros (Pteropidae y Phyllostomidae ), que deben tener un origen común con hábitos alimenticios especializados, provenientes tal vez del grupo insectívoro Rhinolophidae.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.