Results 41 to 50 of about 2,091 (171)

Antioxidant Activity of a Geopropolis from Northeast Brazil: Chemical Characterization and Likely Botanical Origin

open access: yesEvidence-Based Complementary and Alternative Medicine, Volume 2017, Issue 1, 2017., 2017
Geopropolis is a product containing wax, plant resin, and soil particles. It is elaborated by stingless bees of tribe Meliponini. Methanol extracts of sample of geopropolis produced by Scaptotrigona postica (“mandaguari”) in the state of Rio Grande do Norte (RN, northeast Brazil) were analyzed for the determination of standard parameters (total phenols,
Joselena M. Ferreira   +5 more
wiley   +1 more source

Conservation Assessment for Whorled Rosinweed (Silphium trifoliatum L.) [PDF]

open access: yes, 2004
issued October 1, 2004Report issued on: October 1, 2004INHS Technical Report prepared for USDA Forest Service, Eastern ...
Molano-Flores, Brenda
core  

Colony size predicts division of labour in Attine ants [PDF]

open access: yes, 2014
Division of labour is central to the ecological success of eusocial insects, yet the evolutionary factors driving increases in complexity in division of labour are little known.
Alexander RD   +10 more
core   +3 more sources

Ultraconserved element (UCE) phylogenomics illuminates the evolutionary history and biogeography of Dorymyrmex pyramid ants

open access: yesSystematic Entomology, Volume 50, Issue 2, Page 325-348, April 2025.
A newly expanded UCE phylogeny of Dorymyrmex robustly confirms the major lineages and recommends a new scheme of four major species groups. The asymmetrical, amphitropical distribution of Dorymyrmex was likely created by a single dispersal event across the Isthmus of Panama before the traditional closure date of 3 Mya.
Jill T. Oberski
wiley   +1 more source

Synergetic Antimicrobial Effects of Mixtures of Ethiopian Honeys and Ginger Powder Extracts on Standard and Resistant Clinical Bacteria Isolates

open access: yesEvidence-Based Complementary and Alternative Medicine, Volume 2014, Issue 1, 2014., 2014
Purpose. To evaluate antimicrobial effects of mixtures of Ethiopian honeys and ginger rhizome powder extracts on Staphylococcus aureus (ATCC 25923), Escherichia coli (ATCC 25922), Staphylococcus aureus (MRSA), Escherichia coli (R), and Klebsiella pneumoniae (R). Methods.
Yalemwork Ewnetu   +3 more
wiley   +1 more source

Description of an ancient social bee trapped in amber using diagnostic radioentomology [PDF]

open access: yes, 2018
The application of non-invasive imaging technologies using X-radiation (diagnostic radioentomology, ‘DR') is demonstrated for the study of amber-entombed social bees. Here, we examine the external and internal morphology of an Early Miocene (Burdigalian)
Engel, M.   +6 more
core  

Apinae Latreille

open access: yes
Published as part of Engel, Michael S. & Xie, Jiaying, 2024, The Bee Fauna Of Eocene Fushun Amber (Hymenoptera: Apoidea), pp. 1-81 in Bulletin of the American Museum of Natural History 2024 (469) on pages 31-32, DOI: 10.1206/0003-0090.469.1.1, http://zenodo.org/record ...
Engel, Michael S., Xie, Jiaying
openaire   +1 more source

When attempts at robbing prey turn fatal [PDF]

open access: yes, 2012
Because group-hunting arboreal ants spreadeagle insect prey for a long time before retrieving them, these prey can be coveted by predatory flying insects. Yet, attempting to rob these prey is risky if the ant species is also an effective predator.
Azémar, Frédéric   +3 more
core   +3 more sources

Common Long-Horned Bee Melissodes communis Cresson (Insecta: Hymenoptera: Apidae: Apinae)

open access: yesEDIS, 2021
Contents: Introduction – Distribution – Description – Biology – Host Plants – Economic -Impact Also published on the Featured Creatures website at http://entnemdept.ufl.edu/creatures/MISC/BEES/Melissodes_communis ...
Nicole Miller, Cameron Jack
openaire   +5 more sources

Social insects [PDF]

open access: yes, 2012
Uspjeh funkcioniranja bilo koje zajednice zadružnih kukaca leži u sposobnosti da ma koliko god brojni oni bili, djeluju kao jedno. Da dobrobit kolonije stave ispred svojih vlastitih potreba.
Konevski, Karolina
core   +2 more sources

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