Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"intrinsic rate of increase"”.
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Current status of the scale insect fauna of citrus in Tunisia and biological studies on Parlatoria ziziphi (Lucas)
… fauna in the world. Actually, populations of some species have increased to pest status in many crops and the black scale Parlatoria ziziphi Lucas (Hemiptera: Diaspididae) is one of the most important insect pests attacking citrus crop in Tunisia. In the current study, a revision of the …
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Adaptation of an Invasive Cladoceran (Daphnia Lumholtzi) to Temperature
… has successfully invaded lakes and rivers of North America. This invasive species has been successful, in part, due to similarities between native habitats and warm, eutrophic southern lakes and reservoirs, in which summer conditions are poorly tolerated by Daphnia species native to the US. …
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Life History of the Common Bed Bug Cimex lectularius L. in the U.S.
This study quantifies the rate of bed bug nymphal development, mortality, fecundity and survivorship during starvation for wild caught resistant populations. I then compare some of these characteristics with two susceptible strains. I found that resistant populations develop faster and exhibit less …
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Russian wheat aphid, Diuraphis noxia (Kurdjomov), ecology and reproduction on five noncultivated grass hosts in high elevation environments
… in high elevation environments. The objectives of the first study were to: 1) identify Russian wheat aphid occurrence and abundance on five common grass hosts at elevations between 1,829- 2,743 m during June-October; 2) monitor Russian wheat aphid movement and flight patterns between 1,524- …
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Contribución al manejo integrado de ácaros tetraníquidos (Acari: Tetranychidae) que afectan a frutales de clima templado
… crops. This species is a key pest in many of these hosts. On the other hand, Panonychus ulmi is also a widespread and polyphagous species important as pest of fruit trees and, specially, of the apple tree. The importance of spider mites as pests species have recently increased. The massive …