Results 81 to 90 of about 134,259 (308)

Quantitative synthesis of the effects of drought on community composition and species interactions in terrestrial ecosystems

open access: yesOikos, EarlyView.
Droughts, increasingly frequent under human‐driven climate change, are expected to intensify globally. Both pulsed and prolonged droughts can strongly affect organismal survival and population dynamics, potentially altering terrestrial communities and ecosystems.
Mattheau S. Comerford   +14 more
wiley   +1 more source

Primeiro relato de Spalangia nigroaenea Curtis, 1839 (Hymenoptera: pteromalidae) em pupas de fannia pusio (Wiedemann, 1830) (Diptera: fanniidae) no Brasil First report of Spalangia nigroaenea Curtis, 1839 (Hymenoptera: Pteromalidae) in pupae of Fannia pusio (Wiedemann, 1830) (Diptera: Fanniidae) in Brazil

open access: yesCiência e Agrotecnologia, 2008
Relata-se a primeira ocorrência do parasitóide Spalangia nigroaenea Curtis, 1839 (Hymenoptera: Pteromalidae) em pupas de Fannia pusio (Wiedemann, 1830) (Diptera: Fanniidae), no Brasil. Pupas de F.
Carlos Henrique Marchiori   +1 more
doaj   +1 more source

The Parasitoid Complex of First Generation \u3ci\u3eOstrinia Nubilalis\u3c/i\u3e (Lepidoptera: Pyralidae) Larvae in Northwest Ohio [PDF]

open access: yes, 2018
A survey of first generation European corn borer (Ostrinia nubilalis) larvae was conducted during 1997 in six cornfields located in northwestern Ohio in order to determine the larval parasitoid complex utilizing this host.
Hughes, Laura L, Pavuk, Daniel M
core   +2 more sources

Effects of bioinsecticide exposure route on aphids and their natural enemies in oilseed rape

open access: yesPest Management Science, EarlyView.
Fatty acids, silicone polymers and surfactants reduced aphid numbers but caused natural enemy mortality under direct exposure, while minimal residual activity suggests potential for targeted, compatible use in integrated pest management. Abstract BACKGROUND Myzus persicae Sulzer and Brevicoryne brassicae L.
Aimee J. Tonks   +3 more
wiley   +1 more source

Effects of aqueous extracts of basil, Ocimum basilicum L., Sodom's apple, Calotropis procera Ait and Coriander Coriandrum sativum L. on leaf miner, Liriomyza spp., on okra crop : PS7TH432 Others [PDF]

open access: yes, 2012
The Hymenopterous parasitoids, Hemiptarsemus varicornis (Girault) and Opius dissitus (Muesebeck) are associated with the leaf miner, Liriomyza spp., populations in Central Sudan.
Abdelgader, Hayder   +6 more
core  

Parasitic plants [PDF]

open access: yesCurrent Biology, 2018
In this quick guide, Twyford introduces the reader to parasitic plants, explaining how they steal nutrients from host plants and how this lifestyle has evolved multiple times in plants.
openaire   +3 more sources

Wheat fertilization affects oviposition preference of wheat midge, Sitodiplosis mosellana (Géhin) (Diptera: Cecidomyiidae)

open access: yesPest Management Science, EarlyView.
Wheat fertilization increased plant growth, nitrogen and protein levels, influencing the wheat volatile profile and affecting female wheat midge choice to lay eggs. This could partly result from the observed changes in the VOC profile. Abstract BACKGROUND In Canada, the orange wheat blossom midge (hereafter called wheat midge), Sitodiplosis mosellana ...
Chaminda De Silva Weeraddana   +6 more
wiley   +1 more source

Community composition, abundance and activity‐density of carabids and staphylinids depend on prey abundance and adjacent habitat even in diverse agricultural landscapes

open access: yesPest Management Science, EarlyView.
Carabid and staphylinid communities are shaped by adjacent habitat type, prey availability and landscape context, influencing natural pest control across agricultural landscapes. Abstract BACKGROUND The functioning of agroecosystems depends on key ecosystem processes that deliver ecosystem services, yet agricultural management has increasingly shifted ...
Riina Kaasik   +5 more
wiley   +1 more source

Influence of egg card color preference, inoculation time, generational succession, and learning experience on the parasitism of Trichogramma ostriniae.

open access: yesPLoS ONE
This study investigated the parasitic selection preferences of female Trichogramma ostriniae on egg cards of different colors, considering the effects of inoculation time, generations, and learning experiences on wasp parasitism.
Huixian Wang   +3 more
doaj   +1 more source

Detection of Toxoplasma gondii DNA by polymerase chain reaction in experimentally desiccated tissues

open access: yesMemorias do Instituto Oswaldo Cruz, 2004
Despite toxoplasmosis being a common infection among human and other warm-blooded animals worldwide, there are no findings about Toxoplasma gondii evolutionary forms in ancient populations.
Márcia Andreia Barge Loução Terra   +6 more
doaj   +1 more source

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