Results 31 to 40 of about 299,505 (285)
The topmouth gudgeon, Pseudorasbora parva (Temminck & Schlegel, 1842), is a small cyprinid fish that inhabits the littoral zones of freshwater habitats throughout Asia and Europe.
Dongmei Zhu +4 more
doaj +1 more source
Larval Development: Making Ants into Soldiers [PDF]
Many ant species have complex caste systems, with reproductive queens and sterile workers, which often play distinct roles in the maintenance and defense of the colony. A new study sheds light on how these worker caste systems evolved and the mechanisms by which totipotent larvae give rise to the alternative adult castes.
openaire +2 more sources
The appropriate feeding regime for larvae and post-larvae of crustacean decapods is essential for successful larval culture. Reports on the development and morphology of the mouthparts and foregut of these crustaceans have aided in the selection of ...
Luciano D. Queiroz +2 more
doaj +1 more source
Insects can become lethally infected by the oral intake of a number of insect-specific viruses. Virus infection commonly occurs in larvae, given their active feeding behaviour; however, older larvae often become resistant to oral viral infections.
Simon Villegas-Ospina +2 more
doaj +1 more source
The labial gene is required to terminate proliferation of identified neuroblasts in postembryonic development of the Drosophila brain [PDF]
The developing brain of Drosophila has become a useful model for studying the molecular genetic mechanisms that give rise to the complex neuronal arrays that characterize higher brains in other animals including mammals.
Bello, B. C., Kuert, P. A., Reichert, H.
core +3 more sources
Rapid evolution has rarely been assessed in biological control systems despite the similarity with biological invasions, which are widely used as model systems. We assessed post‐introduction climatic adaptation in a population of Longitarsus jacobaeae, a
Marianna Szűcs +3 more
doaj +1 more source
In order to evaluate their tolerance to low salinities, zoeae of the fiddler crab Uca tangeri from the Rio San Pedro population (southwestern Spain) were reared in the laboratory at 20ºC and at three salinities (16, 24 and 32).
Eduardo D. Spivak, José A. Cuesta
doaj +1 more source
Growth and the expression of alternative life cycles in the salamander \u3ci\u3eAmbystoma talpoideum\u3c/i\u3e (Caudata: Ambystomatidae) [PDF]
Complex life cycles (CLCs) contain larval and adult phases that are morphologically and ecologically distinct. Simple life cycles (SLCs) have evolved from CLCs repeatedly in a wide variety of lineages but the processes that may underlie the transition ...
Ryan, Travis J, Semlitsch, Raymond D.
core +1 more source
The effect of a 24-hour photoperiod on the survival, growth and swim bladder inflation of pre-flexion yellowfin tuna (Thunnus albacares) larvae [PDF]
The effects of two different continuous photoperiod regimes on survival, growth and swim bladder inflation of pre-flexion yellowfin tuna (Thunnus albacares) larvae were investigated. Each photoperiod regime was tested twice with a different larval cohort
A. McIntyre +43 more
core +2 more sources
Naked cuticle is essential for Drosophila wing development beyond Wingless signaling
Naked cuticle (Nkd), a Wnt signaling inhibitor, assumes extensive roles in Drosophila wing development. Overexpressing Nkd causes smaller, crumpled wings, while also perturbing multiple signaling pathways and developmental genes. A specific region (R1S) is critical for Nkd's function as a signaling integrator, offering new insights for studying its ...
Rui Wang, Ping Wang
wiley +1 more source

