A5012608025- Plant and animal studies
- Fern and Epiphyte Biology
- Plant and Fungal Species Descriptions
- Plant Diversity and Evolution
- Plant Parasitism and Resistance
- Botany, Ecology, and Taxonomy Studies
- Animal and Plant Science Education
- Ecology and Vegetation Dynamics Studies
- Phytochemistry Medicinal Plant Applications
- Plant Pathogens and Fungal Diseases
- Science and Education Research
- Lichen and fungal ecology
- Chemistry Education and Research
- Nuts composition and effects
- Academic Research in Diverse Fields
- Environmental Sustainability and Education
- Botany and Plant Ecology Studies
- Plant Physiology and Cultivation Studies
- Insect behavior and control techniques
- Leaf Properties and Growth Measurement
- Essential Oils and Antimicrobial Activity
- Botanical Research and Applications
- Lepidoptera: Biology and Taxonomy
- Species Distribution and Climate Change
- Insect and Arachnid Ecology and Behavior
Universidade de Passo Fundo
2017-2024
Instituto de Saúde
2023-2024
Universidade Federal do Rio Grande do Sul
2009-2015
Universidade Estadual de Feira de Santana
2015
Knowledge on biodiversity is fundamental for conservation strategies. The Brazilian Pampa region, located in subtropical southern Brazil, neglected terms of conservation, and knowledge its fragmented. We aim to answer the question: how many, which, species occur Pampa? In a collaborative effort, we built lists plants, animals, bacteria, fungi that Pampa. included information distribution patterns, main habitat types, status. Our study resulted referenced totaling 12,503 (12,854 taxa, when...
The pollination process and breeding system of the sympatric Habenaria johannensis, H. macronectar, megapotamensis montevidensis was documented for native populations from Rio Grande do Sul, Brazil. All species investigated offer a nectar reward (mean values total sugars ranging 18 to 26%) concealed in spur. is pollinated by butterflies (Hesperiidae, especially genus Urbanus) that carry pollinaria on their eyes; other three are Sphingidae. johannensis moths Manduca rustica M. sexta at base...
Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys biodiversity inventories. Atlantic Forest, most endangered ecosystems world, have high endemism radiated recently Pliocene. We aimed to (1) compile an extensive Forest data set on vascular, non-vascular plants (including hemiepiphytes), lichen epiphyte species occurrence abundance; (2) describe distribution order indicate future sampling efforts. Our work presents first with information abundance...
Subtribe Spiranthinae is the most species-rich lineage of terrestrial Neotropical orchids, encompassing > 500 species and 40 genera. We conducted maximum parsimony likelihood phylogenetic analyses DNA sequence data plastid matK-trnK trnL-trnF nuclear ribosomal ITS sequences for 36 genera 182 plus appropriate outgroups. The results strongly support monophyly (minus Discyphus, Discyphinae Galeottiella, Galeottiellinae) five major lineages, namely monospecific Cotylolabium (sister to remaining...
The pollination biology of very few Chloraeinae orchids has been studied to date, and most these studies have focused on breeding systems fruiting success. Chloraea membranacea Lindl. is one the non-Andean species in this group, aim present contribution elucidate biology, functional floral morphology system native populations from Argentina (Buenos Aires) Brazil (Rio Grande do Sul State). Floral features were examined using light microscopy, scanning transmission electron microscopy. was by...
Abstract A total of 46 lectotypes, one neotype and epitype are designated for species Goodyerinae Spiranthinae originally described by José Mariano da Conceição Vellozo João Barbosa Rodrigues. Moreover, three new previously accepted names treated as synonyms.
Capanemia Barb. Rodr. (Orchidaceae, Oncidiinae) currently includes 17 epiphytic, predominantly Brazilian species. As part of an ongoing revision this genus, we herein propose new synonyms and typifications for several taxa. After a thorough both herbarium material many living specimens in cultivation collected southern southeastern Brazil, recognize only seven species, six which are treated here: C. brachycion (Griseb.) Schltr., carinata Rodr., gehrtii Hoehne, micromera superflua (Rchb. f.)...
As a step towards revision of the sectional classification Neotropical species Habenaria, we focus here on section Pentadactylae. In its current delimitation, this is largest 14 New World sections and embraces group 34 morphologically heterogeneous species. We expanded sampling currently placed in performed Bayesian, maximum likelihood parsimony analyses using nucleotide sequences from one nuclear (internal transcribed spacer, ITS) three plastid (matK, trnK intron, rps16–trnK) DNA regions....
Orchids are globally threatened by habitat loss and poaching. In this context, we present suggestions to maximize the gathered scientific information without compromising continuity of orchid populations: 1. To keep population coordinates in secrecy avoid unnecessary or careless postings on social media; 2. acquire carry valid, working/collecting permits; 3. make a complete photographic record features before pressing specimens; 4. Plant insect (pollinators) vouchers be kept strictly...
Barb. Rodr. comprises seven species that mostly inhabit the Brazilian Atlantic Rain Forest domain. The genus currently consists of two sections: Capanemia Cogn. and Planifolia Pabst, distinguished on basis leaf shape. We compare floral morphology anatomy all to determine whether separation into sections is supported by characters. Both fresh flowers herbarium specimens were investigated, column pollinarium features, together with presence or absence rewards, recorded. Anatomical features...
Received: May 14th, 2020 ; Accepted: June 19th, Published: January 5th, 2021 Correspondence: diogenessilveira@hotmail.com
A taxonomic synopsis of Brazilian Chloraeinae (Orchidaceae) is presented. Artificial keys to separate the genera and species are included. Vegetative floral features all described illustrated with drawings photographs, data on their distribution, phenology ecology Two lectotypes one neotype proposed. The presence Bipinnula biplumata, B. montana, penicillata Chloraea membranacea in Brazil confirmed, gibertii reported for first time from this country.
Capanemia Barb. Rodr. is recorded for the first time from Bahia state. The presence of two species broadens known area occurrence genus, establishing a new setentrional distribution limit.
Abstract The pollination process and breeding system of Pachygenium bonariense pteryganthum were documented for native populations from Rio Grande do Sul, Brazil. flowers secrete nectar (on average with 65% to 67% the concentration total sugars), which is concealed into an incurved spur. Both species are pollinated by native, large Apidae bees, pollinaria adhere under ventral surface their labrum while bees try reach nectar. P. bumblebees Bombus ( Fervidobombus ) morio females oil‐gathering...