P. Ellis

Publications46
h-index20
Citations1,240
Highly Influential Citations40
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  • Publications
  • Influence
Field Studies on diurnal Behaviour, Movement and Aggregation in the Desert Locust (Schistocerca gregaria Forskål).
  • 91
  • 9
The effects of delayed mating on the fecundity of females of Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae)
  • 46
  • 5
Learning and social aggregation in locust hoppers
Abstract 1. 1. When locusts swarm, the hoppers (nymphs) live together in bands that depend on the individuals being attracted towards one another (phase gregaria, obtained in the laboratory by… Expand
  • 92
  • 3
The Marching Behaviour of Hoppers of the African Migratory Locust (Locusta migratoria migratorioides R. & F.) in the Laboratory.
  • 77
  • 3
Changes in the social aggregation of locust hoppers with changes in rearing conditions
Abstract 1. 1. Using hoppers of the two locust species, Locusta migratoria migratorioides (R. & F.), and Schistocerca gregaria Forsk., an investigation was carried out of the rate at which the… Expand
  • 54
  • 3
Studies on numbers and mortality in field populations of the desert locust (Schistocerca gregaria Forskål).
  • 46
  • 3
The influence of some environmental factors on learning and aggregation in locust hoppers
Abstract 1. 1. Using the hoppers of two locust species, Locusta migratoria migratorioides (R. & F.) and Schistocerca gregaria Forsk., an attempt was made to study the importance of a patchy physical… Expand
  • 35
  • 2
Social Aggregation and Gregarious Behaviour in Hoppers of Locusta Migratoria Migratorioides (R. & F.) 1)
Under field conditions bands of Locststa migratoria migratorioides (R. & F.) nymphs (hoppers) carry out a daytime wandering called marching, which is preceded by a period of basking in groups. The… Expand
  • 62
  • 2
Some factors influencing phase characters in the nymphs of the locust,Locusta migratoria migratorioides (R. and F.)
  • P. Ellis
  • Biology
  • Insectes Sociaux
  • 1 March 1959
Summary1.WhenLocusta nymphs are reared crowded they generally show a number of characteristics that are typical of swarm populations in the field, i.e. they march well, have low F/C ratios and are… Expand
  • 17
  • 2
Effects of plant growth regulators on locusts and cotton stainer bugs
Gibberellic acid is a necessary dietary constituent for normal fast maturation in the desert locust. Diets short of gibberellins, such as senescent vegetation, produce a state of adult diapause. The… Expand
  • 12
  • 2
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