Results 271 to 280 of about 155,969 (295)
Instar Increments in Copepod Growth [PDF]
Canadian Journal of Fisheries and Aquatic Sciences, 1986 There is a difference in the growth patterns of large and small copepods as indicated by lengths at each instar for 55 species of copepods from all latitudes. Large species put on a greater proportion of their adult size relatively late in life compared with small species. This confirms an earlier suggestion based on a comparison of only two species.
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The Number of Naupliar Instars in Cyclopoida (Copepoda)
Crustaceana, 1970[L'etude detaillee du developpement larvaire de Cyclops scutifer Sars a montre que six stades naupliens sont presents dans les populations naturelles de cette espece. N 4 et N 5 pouvaient etre distingues par la difference de taille et de forme des minuscules epines terminales du corps a un grossissement de 500 environ.
A.L. Langeland, K. Elgmork
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Instars in the Carpenterworm, Prionoxystus robiniae1
Annals of the Entomological Society of America, 1973The number of larval instars of Prionoxystus robiniae (Peck) varied even within broods reared under the same conditions, but it appeared to be influenced by sex and possibly by heredity and temperature. Instar numbers ranged from 8 to 31 and mean head-capsule widths from 0.96 to 6.65 mm.
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Changes in Haemolymph Proteins in First Instar Locusts
Archives Internationales de Physiologie et de Biochimie, 1966A number of studies have recently shown that the hacmolymph proteins of Insects change during development. Most of the work in this field has however been done on holometabolous Insects, while only a few studies have been made on the Hemimetabola (STEINHAUER and STEPHEN, 1959 on Periplanefa ; MISSELIJN, KARCHER, DE KEYSER, and VAN SANDE, 1959 on ...
A. Scott, F. W. McCormick
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Ecology and Behavior of First Instar Larval Lepidoptera
Annual Review of Entomology, 2002▪ Abstract Neonate Lepidoptera are confronted with the daunting task of establishing themselves on a food plant. The factors relevant to this process need to be considered at spatial and temporal scales relevant to the larva and not the investigator.
Zalucki, Myron +2 more
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Morphology of juvenile instars of Ameronothridae (Acari: Oribatida)
Zootaxa, 2012Juvenile instars of four species of the oribatid mite family Ameronothridae— Alaskozetes antarcticus intermedius, Amer-onothrus lineatus, Halozetes crozetensis and Pseudantarcticola georgiae—are described and illustrated in detail. Knownjuvenile instars of the family are compared, new diagnoses are given when possible, and identification keys to genera
Ermilov, Sergey G. +2 more
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Instar and outstar learning with memristive nanodevices
Nanotechnology, 2010The instar and outstar synaptic models are among the oldest and most useful in the field of neural networks. In this paper we show how to approximate the behavior of instar and outstar synapses in neuromorphic electronic systems using memristive nanodevices and spiking neurons. Memristive nanodevices are especially attractive for this application since
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Instars of the Hessian Fly (Diptera: Cecidomyiidae)
Annals of the Entomological Society of America, 1989Larvae of the Hessian fly, Mayetiola destructor (Say), are shown to have three instars. The first instar feeds for approximately 6 d, during which much of the larval growth occurs. Considerable anatomical differences exist among instars. These differences are described and illustrated by drawings and SEM photographs.
J. H. Hatchett, Raymond J. Gagné
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Key to Mosquito Fourth Instar Larvae
2003Abdominal segment VIII without elongate siphon (Fig. 8.1a).Anopheles (p 164) Abdominal segment VIII with elongate siphon (Fig.
Marija Zgomba +6 more
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Intraspecific Variability in Number of Larval Instars in Insects
Journal of Economic Entomology, 2007The number of larval instars varies widely across insect species. Although instar number is frequently considered to be invariable within species, intraspecific variability in the number of instars is not an exceptional phenomenon. However, the knowledge has remained fragmentary, and there are no recent attempts to synthesize the results of relevant ...
Sören Nylin +2 more
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