Results 151 to 160 of about 125,543 (397)

Supporting policy packages: the future of road pricing in the UK [PDF]

open access: yes, 2007
Transport is already a large component of our economy and society. Historically, transport programmes were substantially about developing basic infrastructure networks. Now the emphasis is on the active management of systems and operating them to maximum
Ieromonachou, Petros   +2 more
core   +1 more source

Composition and Host-Use Patterns of a Scarab Beetle (Coleoptera: Scarabaeidae) Community Inhabiting the Canopy of a Lowland Tropical Rainforest in Southern Venezuela [PDF]

open access: yes, 2019
The adult scarab beetle fauna of the canopy in a lowland tropical rainforest in southern Venezuela was observed and collected by means of a 42 m-tall tower crane for a complete year.
Kirmse, Susan, Ratcliffe, Brett C.
core   +2 more sources

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

The effects of flower supplementation on pollinators and pollination along an urbanisation gradient

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Enhancing urban greenspaces for pollinator communities by planting flower patches is increasingly common, but their efficacy for different groups of insects (bees, hoverflies and moths) is unclear. Our city‐scale experiment demonstrated that the effect of flower patches on pollinators is complex, and direct benefits to specific insects are difficult to
Emilie E. Ellis   +2 more
wiley   +1 more source

Is there a diel pattern to nectar secretion in the Red Bloodwood Corymbia gummifera? [PDF]

open access: yes, 2013
Nectar secretion was measured at 6-h intervals over a 24-h period in flowers of the Red Bloodwood, Corymbia gummifera (family Myrtaceae). Secretion varied among time periods and among trees. There was no clear diurnal or nocturnal pattern.
Goldingay, Ross L.
core  

A major electronics upgrade for the H.E.S.S. Cherenkov telescopes 1-4

open access: yes, 2015
The High Energy Stereoscopic System (H.E.S.S.) is an array of imaging atmospheric Cherenkov telescopes (IACTs) located in the Khomas Highland in Namibia.
Ashton, T.   +33 more
core   +2 more sources

Insecticides outweigh rye cover crop in triggering secondary pest outbreaks

open access: yesPest Management Science, EarlyView.
Insecticides outweigh rye cover crop in triggering secondary pest outbreaks. Zeus Mateos‐Fierro*, Ashley Leach, Ian Kaplan. Spider mite and melon aphid outbreaks are enhanced with broad‐spectrum insecticides, while natural enemies are reduced. However, rye cover crop has little effect on either pest or natural enemy populations.
Zeus Mateos‐Fierro   +2 more
wiley   +1 more source

Artificial intelligence in the mass production of natural enemies for biological control in modern agriculture

open access: yesPest Management Science, EarlyView.
Schematic overview of the graphical abstract illustrating an AI‐integrated framework for mass rearing, quality optimization, and precision release of NEs for sustainable pest management. The left section depicts Trichogramma and Chrysoperla being reared in automated chambers equipped with IoT‐enabled sensors for monitoring light, temperature, and ...
Khadija Javed   +4 more
wiley   +1 more source

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