Insect Growth
Insect Growth - Related Videos
01:47
Osmoregulation in Insects
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2019
Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area. Malpighian tubules extend from the digestive tract, typically the area between the midgut and hindgut, into the hemolymph—a mixture of blood and interstitial fluid found in insects and other arthropods, as well as most...
09:00
Insect-controlled Robot: A Mobile Robot Platform to Evaluate the Odor-tracking Capability of an Insect
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Cited by 18 •
2016
The capability to localize an odor source is necessary for insect survival and is expected to be applicable to artificial odor-tracking. The insect-controlled robot is driven by an actual silkmoth and enables us to evaluate the odor-tracking capability of insects through a robotic platform.
07:42
A Simple Flight Mill for the Study of Tethered Flight in Insects
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Cited by 37 •
2015
Flight in insects is influenced by a number of factors and the propensity to disperse is an important variable in understanding insect ecology and biological control strategies. We describe the construction and use of a simple, relatively inexpensive, and flexible flight mill for measuring parameters of tethered flight in insects.
19:14
Early Metamorphic Insertion Technology for Insect Flight Behavior Monitoring
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Cited by 4 •
2014
We present a novel surgical procedure to implant electrodes in Manduca sexta during its early metamorphic stages. This technique allows mechanically stable and electrically reliable coupling with the neuromuscular tissue to study flight neurophysiology dynamics. We also present a novel magnetic levitation platform for tethered studies of insect yaw.
08:24
Choice and No-Choice Assays for Testing the Resistance of A. thaliana to Chewing Insects
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Cited by 7 •
2008
Plant resistance to chewing insect herbivores can be tested in several ways. Here, we demonstrate how to set-up a choice and a no-choice experiment with the model plant Arabidopsis thaliana to identify resistance against the pest species Pieris rapae.
FAQs
Hormonal signals coordinate the timing of cuticle replacement and developmental transitions. Insect growth depends on signals that initiate formation of a larger cuticle before the old one is shed, while juvenile hormone helps regulate which developmental transition follows. This coordination links physical size increase with tissue and organ development rather than treating molting as an isolated structural event.
The two patterns differ in the resemblance and number of recognizable stages. In incomplete metamorphosis, nymphs resemble adults as they develop. Complete metamorphosis separates development into larval, pupal, and adult stages. This distinction gives biologists a framework for comparing how species organize changes in body form and progress toward reproductive maturity.
Because the exoskeleton is rigid, it cannot expand continuously as internal tissues enlarge. Growth therefore proceeds in intervals associated with molting: hormonal signals promote a larger replacement cuticle, followed by shedding of the old one. The timing of these episodes determines when an insect can increase in size and continue its developmental progression.
Researchers can examine changes in body size, tissues, organs, and reproductive maturity across an insect’s developmental progression. They can also compare the sequence of molts and the stage patterns associated with incomplete or complete metamorphosis. These observations connect physical development with biological timing and help place individual changes within the broader life history of a species.
Knowledge of molting and maturation provides targets for pest-management strategies. Interfering with hormonal signals that control molting or developmental transitions can disrupt normal progression. Similarly, affecting maturation can prevent insects from reaching reproductive adulthood. These approaches apply developmental biology to managing pest populations by targeting processes required for continued growth and reproductive development.
In biology, insect growth connects developmental mechanisms with ecological and agricultural outcomes. Developmental stage affects how a species progresses toward maturity, while the contrast between nymphal and larval-pupal pathways provides context for comparing species. Studying these patterns supports research that links tissue and organ development with broader questions in ecology, agriculture, and pest management.