Results 41 to 50 of about 97,396 (293)
Evidence for adaptive explanations of semelparity in animals
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher +1 more
wiley +1 more source
The seven taxa of the cicada genus Tibicina (T.corsica corsica, T. corsica fairmairei, T. garricola, T. haematodes, T. nigronervosa, T. quadrisignata, T. tomentosa) which occur in continental France and Corsica were investigated.
Jérôme SUEUR, Stéphane PUISSANT
doaj +1 more source
Pittosporum pit scale, Planchonia Arabidis (Hemiptera: Asterolecaniidae) and its leaf galls induced on Pittosporum Tobira in Southern Italy [PDF]
The morphology of the adult female pittosporum pit scale, Planchonia arabidis, a commonly encountered sap-feeding insect in Europe, is described and illustrated, based on material collected from southern Italy on Pittosporum tobira.
Mifsud, David +2 more
core +1 more source
Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley +1 more source
Periacineta mexicana n. sp. (Ciliophora, Suctoria, Discophryida), Epizoic on Mexican Backswimmers of the Genus Buenoa (Insecta, Hemiptera, Notonectidae) [PDF]
A new species of suctorian in the genus Periacineta, epibiotic on aquatic bugs (Hemiptera, Heteroptera, Nepomorpha), is described on the basis of morphological characteristics of the cell body, lorica, tentacular placement, and stalk, and its 18S rRNA ...
Marіño-Pérez Ricardo +2 more
core +2 more sources
Key to the adult females of scale insect species recorded on O. europaea in Brazil. Adapted from Ferris (1937, 1938, 1941, 1942), Gill (1988), Granara de Willink (1999), and Claps and Wolff (2003). 1. With developed legs (Coccidae)..................................................
Wolff, Vera R. S. +3 more
openaire +2 more sources
ABSTRACT Aedes aegypti, a critical vector for tropical diseases, poses significant challenges for studying its embryogenesis due to difficulties in removing its rigid chorion and achieving effective fixation for in situ hybridization. Here, we present novel methodologies for fixation, dechorionation, DAPI staining, and in situ hybridization, enabling ...
Renata Coutinho‐dos‐Santos +8 more
wiley +1 more source
Large-scale gene discovery in the pea aphid Acyrthosiphon pisum (Hemiptera) [PDF]
Aphids are the leading pests in agricultural crops. A large-scale sequencing of 40,904 ESTs from the pea aphid Acyrthosiphon pisum was carried out to define a catalog of 12,082 unique transcripts.
Rispe, Claude +71 more
core +1 more source
The conversion of rainforests into rubber and oil palm plantations drives biodiversity loss in Southeast Asia. Parasitoid wasps are highly diverse and play an essential role in ecosystems by regulating herbivore populations. Declines in density and diversity of parasitoid wasps, after land‐use change is well‐documented, but potential functional losses ...
Azru Azhar +17 more
wiley +1 more source
The scale insect family Rhizoecidae in Germany has historically been documented as comprising six species from two genera: Rhizoecus albidus Goux, 1942, Rhizoecus cacticans (Hambleton, 1946), Rhizoecus franconiae Schmutterer, 1956, Ripersiella caesii ...
Alejandro CABALLERO +3 more
doaj +1 more source

