Results 71 to 80 of about 3,964 (196)

A new species of Liphanthus from Peru (Hymenoptera: Andrenidae) [PDF]

open access: yes, 2014
The protandrenine bee genus Liphanthus Reed (Panurginae: Protandrenini) is currently known from Chile and Argentina.  Liphanthus (Melaliphanthus) cuscoensis Gonzalez, Rasmussen, & Engel, new species, is described and figured from a male collected in ...
Engel, Michael S.   +2 more
core   +2 more sources

Mixed effects of urbanization on pollination services among four native plant species

open access: yesEcological Entomology, Volume 50, Issue 6, Page 1184-1195, December 2025.
We tested urbanization and fragmentation effects on pollination services using four native phytometer species that were deployed across 10 community gardens located in suburban and densely urbanized areas Landscape context generally did not influence pollination; however, for one of four phytometers (Lobelia siphilitica, pictured above) urban cover ...
Nicholas Sookhan   +2 more
wiley   +1 more source

New genus of Calliopsini. [PDF]

open access: yes, 2017
71 pages : illustrations (chiefly color) ; 26 cm.We establish a new genus for an unusual species of Peruvian calliopsine bees (Panurginae: Calliopsini) that was initially reported in the literature as an undescribed species of Spinoliella Ashmead that ...
Engel, Michael S.   +2 more
core  

Diversity and abundance of solitary and primitively eusocial bees in an urban centre: a case study from Northampton (England) [PDF]

open access: yes, 2015
The apparent reduction of solitary and primitively eusocial bees populations has remained a huge concern over the past few decades and urbanisation is considered as one of the factors affecting bees at different scales depending on bee guild.
A Loram   +75 more
core   +1 more source

24 million years of pollination interaction between European linden flowers and bumble bees

open access: yesNew Phytologist, Volume 248, Issue 4, Page 2111-2127, November 2025.
Summary Pollination is the most common insect–plant mutualism, binding them in a co‐evolutionary framework. Historic evidence of this interaction can be partly inferred from time‐calibrated molecular phylogenies of plant and insect lineages or directly from fossils.
Christian Geier   +9 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  

Identification and description of Indian parasitic bee genus Sphecodes Latreille 1804, (Halictidae: Hymenoptera) [PDF]

open access: yes, 2016
The present study provides an updated knowledge on taxonomy of three important species of Sphecodes Latreille, 1804 which were collected from different parts of India. Three species viz., Sphecodes iridipennis Smith 1879, S.
Dey, Debjani, Rajkumar, M. Balaji
core   +2 more sources

A new interpretation of the bee fossil Melitta willardi Cockerell (Hymenoptera, Melittidae) based on geometric morphometrics of the wing

open access: yesZooKeys, 2014
Although bees are one of the major lineages of pollinators and are today quite diverse, few well-preserved fossils are available from which to establish the tempo of their diversification/extinction since the Early Cretaceous.
Alexandre Dewulf   +4 more
doaj   +1 more source

Evaluating the SPRING pollinator monitoring methods in Flanders (Belgium)

open access: yesEcological Solutions and Evidence, Volume 6, Issue 4, October–December 2025.
This study evaluated six methods for monitoring wild bees and hoverflies in Flanders, showing that pan traps were most effective for bees, while combining pan traps and transect walks best captured hoverfly diversity. Trap height, UV reflectance and seasonal variation strongly influenced sampling outcomes, highlighting the need for protocol refinement ...
Kevin Maebe   +9 more
wiley   +1 more source

Virus distributions in wild bees are associated with floral communities at local to landscape scales

open access: yesEcological Applications, Volume 35, Issue 7, October 2025.
Abstract Bees are focal pollinators, essential for maintaining biodiversity and crop production. Thus, reports of high annual honey bee colony losses and population declines among many wild bees in different parts of the world are of major concern. The spread of viruses is highlighted as a potential threat to bee communities.
Idan Kahnonitch   +8 more
wiley   +1 more source

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