Results 261 to 270 of about 163,284 (313)

Soldier Production Strategy in Lower Termites: From Young Instars or Old Instars?

Journal of Theoretical Biology, 2002
We constructed a mathematical model to explain from which instars soldiers should be produced to maximize the growth rate of a termite colony. The model is based on the demography of the lower termite's colony: many of them feed inside the nest. The model predicts the following: (1) When the colony is young (it still has enough food and needs a high ...
Shiro, Horiuchi   +2 more
openaire   +2 more sources

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
openaire   +5 more sources

Key to Mosquito Fourth Instar Larvae

2003
Abdominal segment VIII without elongate siphon (Fig. 8.1a).Anopheles (p 164) Abdominal segment VIII with elongate siphon (Fig.
Norbert Becker   +6 more
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Changes in Haemolymph Proteins in First Instar Locusts

Archives Internationales de Physiologie et de Biochimie, 1966
A 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 ...
F W, McCormick, A, Scott
openaire   +2 more sources

Instar and outstar learning with memristive nanodevices

Nanotechnology, 2010
The 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
openaire   +2 more sources

Intraspecific Variability in Number of Larval Instars in Insects

Journal of Economic Entomology, 2007
The 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 ...
Toomas, Esperk   +2 more
openaire   +2 more sources

Instar Increments in Copepod Growth

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.
openaire   +1 more source

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