Results 31 to 40 of about 13,733 (209)
In this work a new record for Triplocania rosae Silva-Neto, García Aldrete & Rafael, 2016 in the Brazilian state of Minas Gerais was made, and also a propose for a new species group in Triplocania, with an identification key to the species in it.
Alberto M. Silva-Neto +1 more
doaj +1 more source
Starch reserves in Neotropical species of Marattia (Marattiaceae-Pteridophytes)
Starch grains found within the parenchymatous tissues of the rhizomes of seven Neotropical species of Marattia Sw. (M. alata Sw., M. cicutifolia Kaulf., M. excavata Underw., M. interposita Christ, M. laevis Sm., M. laxa Kunze and M. weinmanniifolia Liebm.
María del Carmen Lavalle +1 more
doaj +1 more source
Diversity of Scleria (Cyperaceae) in Amazonian restinga in Pará state, Brazil
This study aims to contribute to the knowledge on the taxonomy of Scleria in sandy coastal plains (restinga) in Pará state, Brazil. Material deposited in the herbaria of Museu Paraense Emílio Goeldi (MG), Embrapa Amazônia Oriental (IAN), and Instituto de
Layla Jamylle Costa Schneider +1 more
doaj +1 more source
The role of the Neotropics as a source of world tetrapod biodiversity
International audienceAim: The Neotropics currently host outstanding levels of species richness, with onethirdof the global tetrapod species. The underlying causes of these extraordinarylevels of biodiversity are a topic debated in evolutionary ecology ...
Frédéric Delsuc +10 more
core +1 more source
This work discusses the criteria proposed to consider wild bees as bioindicators and specifically applied to orchid bees in neotropical forests. Some of the issues are: 1) the deficiencies of the sampling methods, which makes it difficult to accurately ...
Yostin Añino +2 more
doaj +1 more source
Phylogeny of Dorstenia (Moraceae) reveals the polyphyletic nature of its neotropical sections
Dorstenia, the second largest genus of Moraceae, comprises nine sections that are mainly found in Africa and America. Two of them are woody macrospermous, and the other seven are herbaceous microspermous.
Marcelo Dias Machado Filho +4 more
doaj +1 more source
Sperm Morphology in Neotropical Primates [PDF]
The morphological and morphometric characterization of spermatozoa has been used as a taxonomic and phylogenetic tool for different species of mammals. We evaluated and compared the sperm morphometry of five neotropical primate species: Alouatta caraya, Ateles belzebuth and Ateles chamek of family Atelidae; and Cebus cay (=Sapajus cay) and Cebus ...
Eliana R. Steinberg +5 more
openaire +4 more sources
The demography and behaviour of Teinopodagrion oscillans was studied in a protected area in the Andean region of Colombia. Adult damselflies were individually marked, and using their recapture histories, we estimated survival, longevity, sex ratio, and ...
Fredy Palacino-Rodríguez +3 more
doaj +1 more source
Amanita dulciodora (Amanitaceae, Basidiomycota), a striking new species of Amanita section Lepidella from Northeast Brazil [PDF]
Background – Amanita Pers. has a worldwide distribution and is one of the most well-known fungal genera in terms of both morphotaxonomy and molecular phylogenetics, consisting of many edible, as well as poisonous, even lethal, mushrooms.
Cristiano C. Nascimento +3 more
doaj +3 more sources
In South America, knowledge of major spawning sites is crucial for maintaining migratory fish populations. In this study, we aimed to understand the spatio-temporal distribution of fish eggs in the upper São Francisco River using high sampling frequency ...
Paulo Santos Pompeu +7 more
doaj +1 more source

