Results 61 to 70 of about 18,170 (264)

Nest Characteristics and Prey Selection of Sceliphron destillatorium (Apoidea, Sphecidae) on the Territory of the Rivnenskyi Nature Reserve

open access: yesZoodiversity
The nesting behaviour and prey selection of Sceliphron destillatorium remains poorly studied in Ukraine. In the present study we analysed a total of 59 nests of S. destillatorium. The main morphometric parameters of S.
S. Pytel-Huta   +4 more
doaj   +1 more source

Evidence for Widespread Associations between Neotropical Hymenopteran Insects and Actinobacteria

open access: yesFrontiers in Microbiology, 2017
The evolutionary success of hymenopteran insects has been associated with complex physiological and behavioral defense mechanisms against pathogens and parasites.
Bernal Matarrita-Carranza   +9 more
doaj   +1 more source

The hunt for Scabiosa trenta Hacq: how the pursuit of a phantom ignited a passion for botany and mountaineering

open access: yesNordic Journal of Botany, EarlyView.
Scabiosa trenta Hacq. was first described in 1782 by Balthasar Hacquet, with its specific epithet referring to the Trenta Valley in Slovenia. Since then, S. trenta has been the focus of numerous mountaineering and botanical expeditions, particularly by the alpinist Julius Kugy during the Golden Age of Alpinism, a period in the second half of 19th ...
Valentina Boscariol   +5 more
wiley   +1 more source

Pain and Lethality Induced by Insect Stings: An Exploratory and Correlational Study

open access: yesToxins, 2019
Pain is a natural bioassay for detecting and quantifying biological activities of venoms. The painfulness of stings delivered by ants, wasps, and bees can be easily measured in the field or lab using the stinging insect pain scale that rates the pain ...
Justin O. Schmidt
doaj   +1 more source

A plant–pollinator invasional meltdown: the Japanese pagoda tree Styphnolobium japonicum facilitates the invasion of the giant resin bee Megachile sculpturalis

open access: yesOikos, EarlyView.
An invasional meltdown can occur when a non‐native species facilitates the spread of another non‐native species in the invaded area, increasing its likelihood of survival or its ecological impact. Plant–pollinator systems pose an exceptional study system to test this concept, which remains poorly known.
Daniel Echeandía   +9 more
wiley   +1 more source

A solitary mud-daubing wasp, Brachymenes dysmenes (Hymenoptera: Vespidae) fron Brazil with evidence of a life-cycle polyphenism

open access: yesRevista de Biología Tropical, 1999
Nests (n=60) of a solitary mud-daubing wasp, Brachymenes dyscherus were collected at Fazenda Santa Carlota, Cajuru, São Paulo, Brazil in 1995 and 1996.
Evandro Camillo
doaj  

Diversity and pollination value of insects visiting the flowers of a rare buckwheat (Eriogonum pelinophilum: Polygonaceae) in disturbed and "natural" areas

open access: yesJournal of Pollination Ecology, 2011
We compared flower-visitors of the endangered plant Eriogonum pelinophilum, at relatively undisturbed and highly disturbed sites. We found no difference between sites in flower visitation rate or species richness of flower-visitors; species diversity of ...
V. J. Tepedino   +2 more
doaj   +1 more source

Heterogeneous preferences for use and non‐use values provided by insects

open access: yesPeople and Nature, EarlyView.
Abstract Public support is essential for reversing insect declines, yet conservation efforts often focus on instrumental values, particularly pollination and pest regulation, while overlooking the many and varied cultural ecosystem services that may underpin broader public support for conservation.
Peter King   +3 more
wiley   +1 more source

Fenologia reprodutiva e sistema de polinização de Ziziphus joazeiro Mart. (Rhamnaceae): atuação de Apis mellifera e de visitantes florais autóctones como polinizadores Reproductive phenology and pollination system of Ziziphus joazeiro Mart. (Rhamnaceae): the role of Apis mellifera and autochthonous floral visitors as pollinators

open access: yesActa Botânica Brasílica, 2007
(Fenologia reprodutiva e sistema de polinização de Ziziphus joazeiro Mart. (Rhamnaceae): atuação de Apis mellifera e de visitantes florais autóctones como polinizadores).
Tarcila de Lima Nadia   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy