Results 61 to 70 of about 606,090 (241)

Analysis of Gene Expression in Aedes aegypti Suggests Changes in Early Genetic Control of Mosquito Development

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
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

Áreas de dispersão e recrutamento de larvas do caranguejo-uçá, Ucides cordatus, nos Manguezais Paranaenses

open access: yesBiodiversidade Brasileira
O caranguejo-uçá, Ucides cordatus, é uma espécie endêmica de manguezais com grande importância econômica e ecológica no litoral brasileiro. Sua reprodução ocorre nos meses de verão e inclui seis estágios de larvas planctônicas que se desenvolvem na ...
Anny Izabelly de Araujo Cordeiro   +3 more
doaj   +1 more source

Taxonomy of the Simulium perflavum species-group (Diptera: Simuliidae) : with description of a new species from Brazil [PDF]

open access: yes, 1998
The larva, pupa, male, and female of Simulium trombetense n. sp. are described and illustrated. This species was collected in the Brazilian Amazon region in the states of Amapa, Amazonas, Para, and Roraima near the edges ofthe crystalline basement-rock ...
Adler, Peter H., Hamada, Neusa
core  

The use of edible insects in human food

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract The world population is expected to reach approximately 10 billion people by 2050, which will significantly increase global food demand and may lead to agricultural shortages and a higher risk of food insecurity. In this context, this review discusses the potential of insects as alternative sources of animal protein, addressing their ...
Pamela Barroso de Oliveira   +5 more
wiley   +1 more source

Optimizing rearing and welfare in Senegalese sole (Solea senegalesensis) broodstock: effect of ambient light intensity and handling time on stress response [PDF]

open access: yes, 2019
Broodstock rearing conditions and handling procedures should be optimized in aquaculture species in order to benefit fish welfare and guarantee optimal conditions for spawning. In teleosts, basal cortisol levels display daily rhythms, oscillating along
Aragão, Cláudia   +4 more
core   +2 more sources

Structural stability of plant–pollinator interactions despite seasonal abundance of long‐tongued hawkmoths

open access: yesOikos, EarlyView.
Seasonal environmental cycles affect plant–pollinator interactions by altering plant phenology. Periods of low resource availability can filter pollinators and reduce the complexity of interaction networks, but the extent to which the functional morphology of pollinators influences such filtering remains unclear.
Ugo M. Diniz   +3 more
wiley   +1 more source

From fertilizer to insecticide: urban leaf litter chemistry alters the survival landscape of Aedes aegypti

open access: yesPest Management Science, EarlyView.
Chemical profiling and bioassays reveal that leaf‐litter leachates from urban trees flip between nourishing and killing Aedes aegypti larvae: dilute Tipuana tipu boosts growth, whereas concentrated, aged extracts are >90% lethal. Species‐specific chemistry thus turns street trees into potential self‐renewing tools for integrated vector control ...
Ana Luiza Caldatto   +7 more
wiley   +1 more source

From flower buds to bolls: how cotton reproductive structures shape boll weevil development, reproduction and survival

open access: yesPest Management Science, EarlyView.
Female boll weevils feeding on flower buds promote reproduction regardless of their immature diet, whereas boll feeding increases lipid reserves and lifespan, revealing a nutrition‐driven trade‐off that sustains survival and reproduction in tropical boll weevil populations.
Roberta Ramos Coelho   +5 more
wiley   +1 more source

EFEITO DA SALINIDADE NO DESENVOLVIMENTO LARVAL DE Echinaster echinophorus (LAMARCK 1816) (ECHINODERMATA: ASTEROIDEA)

open access: yesBrazilian Journal of Aquatic Science and Technology, 2010
Samples of Echinaster echinophorus (Lamarck 1816) (Echinodermata: Asteroidea) were collected in Cabo Frio, Rio de Janeiro, Brazil. Animals were induced to spawn in the laboratory. Success in larval growth, development, settlement and metamorphosis were observed after exposing eggs to different salinities ranging from 34psu to 10psu.
C. C. NOBRE, L. S. CAMPOS-CREASEY
openaire   +2 more sources

Peptidic product derived from trypsin autolysis modulates insect digestive proteases and supports plant biochemical defense

open access: yesPest Management Science, EarlyView.
XXXX Abstract BACKGROUND Spodoptera frugiperda, commonly known as the fall armyworm, is a highly economically significant pest that affects various crops, resulting in substantial losses in productivity. Managing this pest primarily relies on chemical insecticides; however, the repeated development of resistance to these chemicals has rendered them ...
Daniel Guimarães Silva Paulo   +9 more
wiley   +1 more source

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