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2 results for “Phyllium monteithi”
Data from: Exoskeleton ageing and its relation to longevity and fecundity in female Australian Leaf Insects (Phyllium monteithi)
<p>Senescence is a decline in reproduction and survival rate with advancing age resulting from deterioration of somatic tissues and systems throughout the body. Age-related somatic changes (somatic ageing) have been studied extensively in vertebrates but are less well known in other animals, including insects. Since adult insects have very limited ability to repair their exoskeleton, somatic ageing could involve deterioration and discolouration of the cuticle. We investigated age-related changes in wing pigmentation and abdominal cuticle necrosis in females of the Australian leaf insect <em>Phyllium monteithi</em>. Adult females varied markedly in the extent and pattern of pigmentation on their bodies, and we found that pigment spots on the forewings increased in size with age in most individuals. As females aged, most individuals also exhibited increasing levels of abdominal cuticle necrosis, resulting in the loss of abdominal cuticle along the margin of the abdomen. Neither the extent of pigmentation nor cuticle loss were clearly associated with reduced fecundity or longevity in the protected laboratory environment, but it remains unknown whether these age-related changes have functional implications in the wild. Our results show that the <em>P. monteithi</em> exoskeleton undergoes complex changes with age, with potential implications for functional traits and fitness.</p>
Data from: Exoskeleton ageing and its relation to longevity and fecundity in female Australian Leaf Insects (Phyllium monteithi)
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