Effects of food stress and density in different life stages on reproduction in a butterfly

Article Abstract:

The insects diets and the energetic needs changes between different life stages, with storing of larva resources, adult feeding and reproduction being linked strategies and the detrimental effects on female reproduction, negative effects of adult food stress were confined to female being led to larvae ad libitum. It shows that restricted food access in different developmental stages may set different limits of reproduction, either posed by shortage of larval-derived storage reserves or adult income.

Germany, Sexual behavior, Butterflies, Animal reproduction

---

Grasshoppers cope with low host plant quality by compensatory feeding and food selection: N limitation challenged

Article Abstract:

The effect of low host plant nitrogen content on herbivore performance is explored where the lower growth rate grasshoppers reared on Plant nitrogen (N)-poor grass exhibited prolonged development and smaller adult size. Although the species exploit a relatively very poor autotroph nutrient base in the wild, as underpinned by N analysis of natural host grasses and grasshopper tissue, our data suggest that natural food quality imposes no relevant constraint on the herbivore's performance.

Switzerland, Insect-plant relationships, Grasshoppers

---

Biodiversity effects of elevated CO(2) in species-rich model communities from the semi-arid Negev of Israel

Article Abstract:

Research indicates that increased levels of atmospheric carbon dioxide lower nitrogen content in plant leaves and reduce leaf area. Although reproductive output and biomass remained constant for most plant species tested, significant variations were found among the more responsive species. Data were obtained from vegetation in Israel's Negev Desert grasslands.

Israel, Statistical Data Included, Environmental aspects, Natural history, Biological diversity, Biodiversity, Negev Desert, Atmospheric carbon dioxide, Growth (Plants), Plant growth

Similar abstracts:

• Abstracts: The role of niche breadth, resource availability and range position on the life history of butterflies. Environmental noise and population dynamics of the ciliated protozoa Tetrahymena thermophila in aquatic microcosms
• Abstracts: The effect of food on microparasite transmission in the waterflea 'Daphnia magna'. Severe food stress has no detectable impact on developmental instability in Daphnia magna
• Abstracts: The impact of information on land development: a dynamic and stochastic analysis. Sequencing batch reactor biofilm system for treatment of milk industry wastewater
• Abstracts: The application of batch extraction tests for the characterization of solidified ferro alloy waste products. Biological treatment of synthetic wastewater containing 2,4 dichlorophenol (DCP) in an activated sludge unit
• Abstracts: Cost of strepsipteran macroparasitism for immature wasps: Does sociality modulate virulence? . Benefits and costs of floral visitors to Chilopsis linearis: pollen depostion and stigma closure

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.