Results 161 to 170 of about 51,993 (280)

Do aphid endosymbiotic bacteria influence parasitoid searching behaviour through changes in aphid honeydew production?

open access: yesEcological Entomology, EarlyView.
Hamiltonella defensa infection increases honeydew production in certain aphid genotypes, potentially modifying aphid feeding behaviour. Parasitoid wasps, Aphidius ervi, are more attracted to honeydew from H. defensa‐infected aphids; though larger honeydew amounts may slightly deter searching.
Desiré Macheda   +5 more
wiley   +1 more source

IMPACT OF BIOTECHNOLOGY IN EUROPE: THE FIRST FOUR YEARS OF BT MAIZE ADOPTION IN SPAIN [PDF]

open access: yes
In the present paper we estimate the impact of a biotechnology innovation in Spanish agriculture. Transgenic Bt maize offers the potential to control corn borers, that cause economically important losses in Spanish maize cultivation, more efficiently ...
Demont, Matty, Tollens, Eric
core   +1 more source

Behavioural responses to radio‐tag attachment in butterflies: Evidence for active tag removal

open access: yesEcological Entomology, EarlyView.
During controlled indoor flight experiments with 89 butterflies from eight tropical species, we monitored behavioural responses to dorsally attached radio tags using high‐speed video recordings. Four of 39 Morpho helenor exhibited coordinated abdominal flexion and hind leg movements directed toward the tag antenna during flight; in two individuals this
Simon Heitzler, Thomas K. Gottschalk
wiley   +1 more source

No evidence of a decoy effect in bees: Rewardless flowers do not increase bumblebees' preference for neighbouring flowers

open access: yesEcological Entomology, EarlyView.
Many plants retain nectarless flowers; we tested whether these act as “decoys” for bees by making neighbouring rewarding flowers seem more valuable—a cognitive bias known as the decoy effect. The presence of decoy flowers did not shift bumblebee preferences between two equally rewarding inflorescences, and bees quickly learned to avoid these nectarless
Mélissa Armand   +3 more
wiley   +1 more source

Floral resource strips enhance parasitoid abundance and diversity in apple orchards and promote agroecological advances in a South African biosphere reserve

open access: yesInsect Conservation and Diversity, EarlyView.
Floral resource strips within apple orchards increased parasitoid abundance and influenced community composition, enhancing local biodiversity in the Kogelberg Biosphere Reserve's transition zone. Ruderal and natural fynbos habitats supported higher parasitoid richness and abundance, emphasising the importance of conserving semi‐natural habitats ...
Fabrizia Ratto   +7 more
wiley   +1 more source

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