|Issue № 1||
|Ph.D., Herzen State Pedagogical University of Russia, firstname.lastname@example.org|
common green grasshopper
Summary: In spite of being an important factor in determining the nature of interactions between the animal population and its habitat, the phenomenon of polymorphism is still insufficiently considered when studying the life forms of animals including grasshoppers. In particular, variation in the different phenotype ratios of a population can be an effective mechanism of its rapid adaptation to the changing habitat conditions. Therefore, the investigation of the cryptic colour polymorphism of grasshoppers Omocestus viridulus in the different parts of the species area is of particular interest.
We studied the colour variability of the common green grasshopper Omocestus viridulus. The research was conducted in the Pskov and Novgorod regions of Russia in 2015 and 2017. The ratio between different colour types of species was determined by counting grasshoppers on transects in ten geographical locations. A total of 1,166 individuals were registered.
Three typical colour forms of O. viridulus are typical in the north-west Russia: f. rubiginosa (without green components in colouring), f. hyalosuperficies (green colour is only on the top of the body) and f. viridis (green colour is predominant). It was stated that most of the males were classified as f. rubiginosa whereas most of females as f. hyalosuperficies in all investigated locations. Individuals of both males and females of f. viridis were rarely found in all 9 locations in the Pskov Region. In the Novgorod region in the only studied location they were not found at all. The proportion of f. viridis individuals was approximately the same for all the locations in the Pskov region. It ranged from 4.8 to 11.2% of the total number of counted individuals and did not depend on animals’ sex. Within the Pskov Region no statistical differences were found in the proportion of f. viridisin in various locations. Nevertheless, it differed significantly from the result that was obtained in the Novgorod region, as well as from the Scandinavian data available in the literature. The reason for these differences is not quite clear, and a further investigation is needed to find a convincing explanation.
© Petrozavodsk State University
Received on: 13 December 2017
Published on: 25 March 2018
Benediktov A. A. To systematics of Palaearctic representatives of Bryodemini tribe (Orthoptera, Acrididae), Zoologicheskiy zhurnal. 1998. T. 77. No. 7. P. 788–799.
Benediktov A. A. Variability of wings pattern of the locusts from the tribe Bryodemini Bey-Bienko (Orthoptera: Acrididae), Trudy Zoologicheskogo instituta RAN. 2016. T. 320. No. 4. C. 467–472.
Bienko G. Ya. Mischenko L. L. Grasshoppers of the fauna of the USSR and adjacent countries. Part 1. M.; L.: Izd-vo AN SSSR, 1951. 378 p.
Chernyahovskiy M. E. Morpho-functional features of life-forms of grasshoppers, Uchenye zapiski MGPI im. V. I. Lenina. 1970. No. 394. S 47–63.
Glanc S. Medico-biological biostatistics. M.: Praktika, 1999. 459 p.
Gorohov A. V. Life-forms of crickets (Orthoptera, Grylloidea) of the Far East of the USSR, Nauchnye doklady vysshey shkoly. Biol. nauki. 1983. No. 1. P. 49–56.
Gotham S., Song H. Non-swarming grasshoppers exhibit density-dependent phenotypic plasticity reminiscent of swarming locusts, J. Insect Physiol. 2013. Vol. 59. P. 1151–1159.
Hammer Ø., Harper D. A. T., Ryan P. D. Past: paleontological statistics software. Package for education and data analysis, Palaeontologia Electronica. 2001. Vol. 4. Iss. 1. Art. 4. 9 p. URL: http://palaeo-electronica.org/2001_1/past/past.pdf (data obrascheniya: 03.10.2017).
Ivanter E. V. Korosov A. V. Elementary biostatstics: a training manual. Petrozavodsk: Izd-vo PetrGU, 2010. 104 p.
Levita B. Étude de l'homochromie chez Oedipoda coerulescens L. (Acridien, Orthoptère), Bulletin Biologique de la France et de la Belgique. 1970. Vol. 104. No. 2. P. 149–213.
Moreteau B. Fonction chromatrope de la pars intercerebralis chez l’acridien Oedipoda caerulescens, J. Insect Physiol. 1975. Vol. 21. No. 7. P. 1407–1413.
Morse A. P. Further researches on North American Acrididae. Carnegie Inst. Washington publication No. 68. Washington: Wilkens-Sheiry, 1907. 54 p.
Ozerskiy P. V. Bobrova T. V. Kuznecova L. S. Correlation between facial angle and the visual field of Acridoid grasshoppers: a hypothesis testing, Izvestiya Rossiyskogo gosudarstvennogo pedagogicheskogo universiteta imeni A. I. Gercena. 2011. No. 41. P. 124–131.
Ozerskiy P. V. Metaphenotype of a population as a structural and functional reflexion of its ecological niche, Funkcional'naya morfologiya, ekologiya i zhiznennye cikly zhivotnyh. Vyp. 10. SPb.: Izd-vo RGPU im. A. I. Gercena, 2010. P. 15–29.
Ozerskiy P. V. On the colouration variability of Orthopteran insects of different life-forms, Funkcional'naya morfologiya, ekologiya i zhiznennye cikly zhivotnyh. 2014. T. 14. No. 2. P. 42–52.
Ozerskiy P. V. On the perspectives of using colour variability in classification of life-forms of Orthopteran insects, Funkcional'naya morfologiya, ekologiya i zhiznennye cikly zhivotnyh. Vyp. 12. SPb.: Tessa, 2012. P. 11–17.
Petersen B., Treherne J. E. On the distribution of colour forms in Scandinavian Omocestus viridulus L., Oikos. 1949. Vol. 1. No. 2. P. 175–183.
Pravdin F. N. Ecological geography of the insects of Middle Asia. Orthopteroids. M.: Nauka, 1978. 272 p.
Prisnyy A. V. Functional differentiation of the color elements in grasshoppers, Landshaftnaya ekologiya nasekomyh. Novosibirsk: Nauka, 1988. P. 34–47.
Rowell C. H. F. The variable coloration of the acridoid grasshoppers, Advances in Insect Physiology. 1972. Vol. 8. P. 145–198.
Rubtzov I. A. Phase variation in non-swarming grasshoppers, Bull. Ent. Res. 1935. Vol. 26. No. 4. P. 499–520.
Stebaev I. V. Omel'chenko L. V. Common features of the morpho-adaptational types (life-forms) of grasshoppers of Southern Siberia and adjacent territories, Voprosy ekologii. Povedenie i ekologiya nasekomyh, svyazannyh s agrobiogeocenozami. Novosibirsk: Izd-vo NGU, 1981. P. 13–39.
Stebaev I. V. Life-forms and sexual dimorphism of grasshoppers of Tuva and southwestern Altai, Zoologicheskiy zhurnal. 1970. T. 49. No. 3. P. 325–338.
Stebaev I. V. Morphoadaptogenesis of grasshoppers and their life-forms system, Zhurnal obschey biologii. 1987. T. 48. No. 3. P. 626–639.
Stebaev I. V. Regulations of the combination of signal and cryptic colors in grasshoppers, Zoologicheskiy zhurnal. 1990. T. 69. No. 6. P. 58–69.
Uvarov B. P. A revision of the genus Locusta L. (=Pachytilus Fieb.), with a new theory as to the periodicity and migrations of locusts, Bull. Ent. Res. 1921. Vol. 12. No. 2. P. 135–163.
Voroncovskiy P. A. To the problem of the homology series of the color variation in grasshoppers, Izvestiya Orenburgskoy stancii zaschity rasteniy. 1928. Vyp. 1. P. 27–39.
Yablokov A. V. Population biology. M.: Vysshaya shkola, 1987. 303 p.
Yerushalmi Y., Pener M. P. Age-dependent response of adults of a homochrome grasshopper, Oedipoda miniata, to the dark-colour-inducing neurohormone (DCIN) of locusts, Physiological Entomology. 2002. Vol. 27. No. 2. P. 165–169.