Results 111 to 120 of about 99,429 (347)

The records of Dolichovespula pacifica (Birula, 1930) (Hymenoptera: Vespidae) and the northern limits of its range in European North of Russia

open access: yesActa Biologica Sibirica
In this study, we present new records of Dolichovespula pacifica (Birula, 1930) in Northern European Russia. The range of D. pacifica in the studied region extends up to transitional zone between taiga and low-shrub tundra.
Grigory S. Potapov   +5 more
doaj   +1 more source

Parasitism of Cranberry Fruitworm (\u3ci\u3eAcrobasis Vaccinii\u3c/i\u3e; Lepidoptera: Pyralidae) by Endemic or Released \u3ci\u3eTrichogramma Pretiosum\u3c/i\u3e (Hymenoptera: Trichogrammatidae) [PDF]

open access: yes, 2017
Two levels of commercially-reared Trichogramma pretiosum were released during the oviposition period of the cranberry fruitworm (Aerobasis vaccinii) in eight Massachusetts (U.S.A.) cranberry bog sites. Release levels of 4.8 X 105 T. pretiosum per ha or 1.
Simser, Dave
core   +2 more sources

High β‐diversity in fig wasp communities driven by species turnover in widely distributed Neotropical fig trees

open access: yesOikos, EarlyView.
Wasp communities associated with fig trees, Ficus spp., are a model system to investigate how local and regional processes shape biodiversity across large geographical ranges. We investigated the β‐diversity of fig wasp assemblages associated with three widely distributed Neotropical fig species – F. citrifolia, F. obtusifolia and F. pertusa – using 27
Elmecelli Moraes de Castro Souza   +6 more
wiley   +1 more source

Pollinator-attracting semiochemicals of the wasp-flower Epipactis helleborine [PDF]

open access: yes, 2008
The orchid genus Epipactis is represented by 25 species in Europe (Richards 1982). Epipactis helleborine (L.) Crantz is the most common and widely distributed species of the genus (Wiefelspütz 1970), and is a prime example for wasp-flowers, because it is
Ayasse, Manfred   +3 more
core  

Behavioral Differences Between Two Recently Sympatric Paper Wasps, the Native \u3ci\u3ePolistes Fuscatus\u3c/i\u3e and the Invasive \u3ci\u3ePolistes Dominulus\u3c/i\u3e [PDF]

open access: yes, 2018
Polistes dominulus (Christ), an old world paper wasp, was introduced into the eastern United States in the 1970s and has been rapidly spreading westward. Recently, it has displaced the native Polistes fuscatus (F.) in at least some areas of Michigan.
Gamboa, George J   +3 more
core   +2 more sources

Marine trophic architecture and hidden ecological connections in the Strait of Magellan: keystone species and ecosystem resilience

open access: yesOikos, EarlyView.
Understanding the ecological implications of species coexistence is central to biodiversity studies and to identify environmental and anthropogenic drivers of ecosystem dynamics, where ecological network analysis offers valuable insights. This study examines the complexity, structure, and potential responses to disturbances of the Strait of Magellan's ...
Claudia D. Andrade   +4 more
wiley   +1 more source

Shifts in phenology influence synchrony of flowering plants and their pollinators along an elevation gradient

open access: yesOikos, EarlyView.
Climatic conditions alter the phenology of species, which may threaten the synchrony of biotic interactions. However, how phenological synchrony across entire communities of plants and their pollinators responds to varying environmental conditions remains poorly understood.
Mikko Tiusanen   +2 more
wiley   +1 more source

Secrets within stems: The cryptic Apodanthes caseariae (Apodanthaceae), a rare neotropical holoendoparasite

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Holoendoparasites are extremely rare plants that live entirely hidden inside their hosts, with only flowers and fruits visible. We studied Apodanthes caseariae, found in central and South America, parasitizing Casearia sylvestris. Little is known about its life cycle.
Jessica A. Ramírez‐Ramírez   +4 more
wiley   +1 more source

Differential Properties of Venom Peptides and Proteins in Solitary vs. Social Hunting Wasps

open access: yesToxins, 2016
The primary functions of venoms from solitary and social wasps are different. Whereas most solitary wasps sting their prey to paralyze and preserve it, without killing, as the provisions for their progeny, social wasps usually sting to defend their ...
Si Hyeock Lee   +2 more
doaj   +1 more source

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