Results 81 to 90 of about 1,117,122 (295)

Flower Constancy of Bumblebees – The Case of Onobrychis pindicola (Fabaceae) Pollinators

open access: yesJournal of Apicultural Science, 2018
Pollination in high mountain habitats is an important ecosystem service in climate change conditions. The aim of this study was to use pollen load analysis to assess flower constancy and foraging choices of bumblebees foraging on Onobrychis pindicola, a ...
Kozuharova Ekaterina
doaj   +1 more source

Catálogo sistemático dos polens das plantas arbóreas do Brasil meridional: XXIII. Moraceae Catalogue of southern Brazilian pollen grains: XXIII. Moraceae

open access: yesMemorias do Instituto Oswaldo Cruz, 1976
Foi estudada a morfologia polínica de espécies pertencentes a oito gêneros. Os diferentes tipos polínicos econtrados, correspondendo aos gêneros, bem como as variações das estruturas dentro de alguns deles, confirmam as relações filogenéticas nesta ...
Ortrud Monika Barth
doaj   +1 more source

Pollen morphology of Annonaceae from the Bicol Region, Philippines

open access: yesJournal of Threatened Taxa
Annonaceae is one of the most prominent families with diverse pollen morphology. The present study aimed to investigate and describe the pollen morphology of 12 species of Annonaceae from the Bicol Region, Philippines.
Anne O. Retuerma-Dioneda   +1 more
doaj   +1 more source

Morfologi Serbuk Sari Familia Poacea di Kampus Universitas Syiah Kuala Banda Aceh

open access: yesBiotik: Jurnal Ilmiah Biologi Teknologi dan Kependidikan, 2017
The title of the research was "The morphology of pollen of Familia Poaceae at Syiah Kuala University in Banda Aceh". The purpose of this study was to know the morphology of Poaceae allergenic. The microscopic pollen preparat was made by acetolysis method.
Teuku Fakhrizal
doaj   +1 more source

BarnebyLives: An R package to create herbarium specimen labels and clean spreadsheets

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Accessioning herbarium specimens is labor intensive, yet remains vital for research in ecology, evolution, and conservation. As institutional support for herbaria declines, efficient tools are needed to streamline this process. The R package BarnebyLives was developed to assist collectors by supplementing collection notes, verifying ...
Reed Clark Benkendorf, Jeremie B. Fant
wiley   +1 more source

Morphological characterization of polyads from Marlimorimia, Pityrocarpa, and Parapiptadenia supports the recent circumscription of the Stryphnodendron clade (Caesalpinoideae: Mimoseae) [PDF]

open access: yesActa Botânica Brasílica
Recent phylogenetic hypotheses have been used as evidence to reorganize the former genus Pseudopiptadenia into a new circumscription of Pityrocarpa and the recently described Marlimorimia, while confirming the monophyly of Parapiptadenia.
Ana Flávia Trabuco Duarte   +5 more
doaj   +2 more sources

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

open access: yesThe Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Palm Pollen and the Fossil Record

open access: yes, 1996
Previously published descriptions of the pollen morphology of the Palmae arereviewed and discussed. The earliest macro fossil records for palms aresummarised, while a more detailed review is given of the fossil records of palmlikepollen.
Harley, Madeline Margaret
core  

Bite force estimates and morphological correlations of jaw muscles in parrots

open access: yesThe Anatomical Record, EarlyView.
Abstract Parrots (Order: Psittaciformes) are renowned for their high bite force (BF) and morphological correlates thereof, including a highly mobile skull and two unique mandibular adductor muscles—m. pseudomasseter and m. ethmomandibularis, with the former being hypothesized to increase force output.
Ana Carolina L. Faillace   +3 more
wiley   +1 more source

Pollen morphology and availability of pollen and stigma in Syzygium (Myrtaceae) [PDF]

open access: yesRevista Brasileira de Fruticultura
The present study aimed to describe the pollen morphology in three species of Syzygium, to test pollen availability and stigma receptivity. The pollen was analyzed by light and scanning microscopy to show the detailed ornamentation of the pollen grains ...
Guilherme Nacata   +3 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy