Results 51 to 60 of about 6,310 (178)

Molecular Phylogeny and Strain Genotyping of the Bacterial Endosymbiont Wolbachia Associated With Tuta absoluta Populations

Entomologia Experimentalis et Applicata, EarlyView.
This study was designed to understand the association between reproductive endosymbiotic bacteria and wild and laboratory‐reared Tuta absoluta populations. The majority of T. absoluta populations showed Wolbachia presence at varying levels of infection, whereas Arsenophonus, Cardinium, and Spiroplasma were not detected. Wolbachia‐positive T.
Ashok B. Hadapad, Arpit Prashar, Vikas G. C. Rana, Basavaraj S. Kalmath, Sridhar Vaddi, Ramesh S. Hire   +5 more
wiley   +1 more source

Contribution à l'étude de l'activité biologique d'extraits de feuilles de Cestrum parqui L'Herit.(Solanaceae) sur le criquet pélerin Schistocerca gregaria (Forsk) [PDF]

Biotechnologie, Agronomie, Société et Environnement, 2001
Contribution to the study of the biological activity of Cestrum parqui L'Herit. extracts against the locust Schistocerca gregaria (Forsk). The leaves of Cestrum parqui L'Herit.
Barbouche N., Ammar M., Hajjem B., Lognay G.   +3 more
doaj  

Variations in the ultrastructure of the flight muscles of the polymorphic cricket, Gryllus firmus (Orthoptera: Gryllidae)

European Journal of Entomology, 2012
Although there is a considerable amount of information on the ecology, genetics and physiology of life-history traits there is little information on the morphological variations associated with flight ability within species. In this paper, the morphology
Cheng-Ji JIANG, Bao-Chang ZHANG, Wen-Feng CHEN, Qing-Wen ZHANG, Zhang-Wu ZHAO, Chun-Ju AN, Jie-Ping LI   +6 more
doaj   +1 more source

Host plant richness and abundance drive populations of a super‐generalist xylem‐feeding insect

Ecological Entomology, EarlyView.
Philaenus spumarius abundance was assessed across 93 sites and four habitat types (olive groves, vineyards, meadows, and field margins) within eight heterogeneous agricultural landscapes over the year. In spring, nymph abundance was positively associated with herbaceous plant species richness and vegetation cover, highlighting that even super ...
Francesco Sanna, Jacopo Lupoletti, Nicola Mori, Lorenzo Marini   +3 more
wiley   +1 more source

Phenology dictates the impact of climate change on geographic distributions of six co‐occurring North American grasshoppers

Ecology and Evolution, 2021
Throughout the last century, climate change has altered the geographic distributions of many species. Insects, in particular, vary in their ability to track changing climates, and it is likely that phenology is an important determinant of how well ...
Nathan P. Lemoine
doaj   +1 more source

Arthropod niche differentiation linked to grazing‐induced sward islets in intensively managed agricultural pasture

Insect Conservation and Diversity, EarlyView.
In a given number of samples, grassland sward islets contain more species of arthropods than the surrounding sward. When corrected for abundance, there is no difference in species richness, suggesting that the effect of islets might purely be to concentrate arthropods. The community structure differences indicated by non‐metric multidimensional scaling
Alvin J. Helden, Annette Anderson, Gordon Purvis   +2 more
wiley   +1 more source

Effect of temperature and species of plant on the consumption of leaves by three species of Orthoptera under laboratory conditions

European Journal of Entomology, 2013
In the Mediterranean area the orthopterans Calliptamus barbarus barbarus, Dociostaurus maroccanus and Tettigonia viridissima are considered to be pests of major economic importance crop plants.
Spyridon A. ANTONATOS, Nikolaos G. EMMANUEL, Argyro A. FANTINOU   +2 more
doaj   +1 more source

Arthropod conservation in roadside verges: Unmown refuges outperform mowing equipment changes

Insect Conservation and Diversity, EarlyView.
While roadside verges might have potential as connecting corridors for grassland habitats and their inhabitants, roadside mowing negatively impacts grassland arthropod densities. In contrast to unmown refuges, all mowing techniques harmed grassland arthropods, with no significant differences between mowing equipment.
Johanna L. Berger, Margarita Hartlieb, Nadja K. Simons, Nico Blüthgen   +3 more
wiley   +1 more source

Estudio taxonómico preliminar de los Grylloidea de España (Insecta, Orthoptera)

Graellsia, 2001
En el presente trabajo se realiza un estudio taxonómico y faunístico de la superfamilia Grylloidea de España, incluyendo las islas Baleares y Canarias. Se examinan las 60 especies y subespecies que se han encontrado hasta ahora en este país, siendo seis ...
A. V. Gorochov, Vicenta Llorente
doaj   +1 more source

Three Decades of China's Bt Cotton: Achievements and Insights

Plant Biotechnology Journal, EarlyView.
ABSTRACT Cotton is a vital natural fibre crop with significant economic value worldwide. In response to the threat of cotton bollworm (Helicoverpa armigera), the China government initiated a research project in 1992 to develop transgenic Bacillus thuringiensis (Bt) cotton.
Zhigang Meng, Xiufeng Han, Guangqin Yang, Yuan Wang, Yi Zhou, Qi Zhou, Yanyan Li, Tao Zhou, Sandui Guo, Shuangxia Jin, Chengzhen Liang   +10 more
wiley   +1 more source