Results 101 to 110 of about 279,845 (241)

A sex allocation cost to polyandry in a parasitoid wasp [PDF]

, 2015
R.A.B. is supported by a NERC DTG studentship.The costs and benefits of polyandry are central to understanding the near-ubiquity of female multiple mating. Here, we present evidence of a novel cost of polyandry: disrupted sex allocation.
Boulton, Rebecca, Shuker, David Michael
core   +1 more source

Fragmented grasslands in different landscape structures provide different opportunities for cavity‐nesting Hymenoptera

Insect Conservation and Diversity, EarlyView.
Grassland fragmentation effects on cavity‐nesting Hymenoptera are habitat‐specific. Isolated sand steppe fragments are associated with higher brood‐cell abundance. In loess steppes, higher flower frequency increases bee brood‐cell production and parasitoid activity. Abstract The global decline in insects threatens ecosystem functioning, but the drivers
Edina Török, Róbert Gallé, Dávid Korányi, Zsolt Józan, Tamás Lakatos, Katalin Szitár, Péter Batáry   +6 more
wiley   +1 more source

Contrasting rates of mitochondrial molecular evolution in parasitic diptera and hymenoptera

, 2002
© 2002 Society for Molecular Biology and EvolutionWe investigated the putative association between the parasitic lifestyle and an accelerated rate of mt genetic divergence, compositional bias, and gene rearrangement, employing a range of parasitic and ...
Dowton, M., Castro, L., Austin, A.
core   +1 more source

Mapping wild bee diversity and flower use for an effective conservation of the Doñana biodiversity hotspot

Insect Conservation and Diversity, EarlyView.
We compiled the first checklist of wild bees in Doñana Protected Area, documenting 385 species, including three vulnerable and one endangered species listed in the Red List. Bee species exhibit diverse floral preferences, highlighting the need to incorporate plant–pollinator interactions and the role of plants in conservation and management strategies ...
Francisco P. Molina, Nerea Montes‐Pérez, Luis Villagarcía, Ignasi Bartomeus   +3 more
wiley   +1 more source

Effects of Temperature on Functional Response of Anagrus nilaparvatae Pang et Wang (Hymenoptera: Mymaridae) on the Eggs of Whitebacked Planthopper, Sogatella furcifera Horváth and Brown Planthopper, Nilaparvata lugens Stål

Journal of Integrative Agriculture, 2012
Understanding the temperature affecting parasitic efficiency is critical to succeed in utilizing parasitoid as natural enemy in pest management. Laboratory studies were carried out to determine the effects of temperature on parasitoid preference of ...
Ming-yong MA, Zhao-pu PENG, Yuan HE
doaj   +1 more source

Local habitat, not landscape diversity, drives richness and reproduction of cavity‐nesting bees and wasps in agricultural landscapes

Insect Conservation and Diversity, EarlyView.
Local habitat type and hedgerow cover strongly shape bee and wasp richness, but only weakly their reproductive output, outweighing the landscape diversity effects at the 1‐km2 scale. Forests host more wasp but fewer bee species, whereas orchards support high richness of both; bee reproduction patterns are driven by one dominant species, while wasp ...
Sara Tassoni, Marit Kinga Kasten, Thomas Hiller, Michael Staab, Frank M. Schurr, Ingo Grass   +5 more
wiley   +1 more source

Genetic variability in Cotesia flavipes and its importance in biological control of lepidopteran stemborers [PDF]

, 2003
Lepidoperan stemborers are a major constraint to increasing the production of maize and sorghum under subsistence farming conditions in sub-Saharan Africa.
Niyibigira, E.I.
core  

Miristhma boyi sp. n. (Hymenoptera: Pteromalidae: Pteromalini), a new species from Uruguay

Entomological Communications
This study is focused on the parasitic wasps Miristhma Bouček, 1993 (Hymenoptera: Pteromalidae: Pteromalinae: Pteromalini), a small and poorly represented genus in entomological collections. Herein Miristhma boyi sp. n.
Nelson W. Perioto, Rogéria I. R. Lara
doaj   +1 more source

From biology to biotechnology: Host‐regulation factors from parasitoid wasps are a source of bioactive molecules with translational potential

Insect Molecular Biology, EarlyView.
Parasitoid wasps deploy maternal and embryonic factors to reprogramme host physiology. Venom, calyx fluid, polydnaviruses, teratocytes and larval secretions act in a coordinated, compartmentalised manner. Host‐regulation factors are promising sources of insecticidal, antimicrobial and bioinspired translational molecules.
Ciro Pedro G. Pinto, Andrew A. Walker, Glenn F. King   +2 more
wiley   +1 more source

The role of parasitic Hymenoptera in biological control of forest insect pests in South Korea: A review of invasive and native species management

Biological Control
Forests are vital ecosystems that provide considerable environmental, social, and economic benefits. However, they are increasingly threatened by both invasive and native insect pests.
Jongok Lim
doaj   +1 more source