Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Anthony F.G. DIXON"'
Autor:
Alois HONĚK, Marek BRABEC, Zdenka MARTINKOVÁ, Anthony F.G. DIXON, Stano PEKÁR, Jiří SKUHROVEC
Publikováno v:
European Journal of Entomology, Vol 116, Iss 1, Pp 93-103 (2019)
To determine the causes of the variation in the seasonal dynamics of Harmonia axyridis (Pallas) in Central Europe, numbers of adults and larvae of this invasive species were recorded on trees (Acer, Betula, Tilia) throughout the growing seasons from
Externí odkaz:
https://doaj.org/article/808962f1b50e43e289dc8c61110de6b9
Publikováno v:
European Journal of Entomology, Vol 109, Iss 3, Pp 389-394 (2012)
Lady beetles (Coleoptera: Coccinellidae) are a classical group for studying the mechanisms that determine local and temporal trends in colour polymorphism. Here we report long term trends in variation in the percentage of different morphs in a popula
Externí odkaz:
https://doaj.org/article/08321eb6ea914a9ca273d94deb1ce184
Publikováno v:
European Journal of Entomology, Vol 105, Iss 3, Pp 421-425 (2008)
The hypothesis that small species of aphidophagous coccinellids need lower aphid population densities for reproduction than large species (Dixon, 2007) was tested in the field. In 2006 we compared seasonal changes in the oviposition behaviour of two
Externí odkaz:
https://doaj.org/article/416c423b9a8b402d843d57619aaa21e0
Publikováno v:
Frontiers in Ecology and Evolution, Vol 3 (2015)
Some experiments indicate that ladybirds can significantly suppress aphid abundance. For example, exclusion of predators by caging aphid-infested plants repeatedly results in higher aphid populations and faster aphid population growth rates. However,
Externí odkaz:
https://doaj.org/article/c13b4be33f9b427fb8e00810d31efa5d
Publikováno v:
European Journal of Entomology, Vol 102, Iss 3, Pp 407-411 (2005)
The duration of the increase, peak and decline in abundance of the immature stages of sycamore and cereal aphids each year is ephemeral. These temporary resources are exploited by a sequence of aphidophagous insect predators. The temporal sequence in
Externí odkaz:
https://doaj.org/article/3bf4abe64cb04d508d4205767a25275f
Autor:
Ariel CLUA, Ana M. CASTRO, Silvia RAMOS, Daniel O. GIMENEZ, Araceli VASICEK, Hugo O. CHIDICHIMO, Anthony F.G. DIXON
Publikováno v:
European Journal of Entomology, Vol 101, Iss 1, Pp 193-198 (2004)
The aphids Schizaphis graminum (Rondani) (greenbug) and Diuraphis noxia (Mordvilko) (Russian wheat aphid, RWA) were collected from several localities in Argentina and Southern Chile. Clones were established from aphids collected at each location. The
Externí odkaz:
https://doaj.org/article/183de7b94310437596a498a4fbe95b7a
Publikováno v:
European Journal of Entomology, Vol 97, Iss 4, Pp 443-447 (2000)
Certain alkanes or their mixture present on the surface of ladybird elytra is important in the recognition of potential mates. Similar chemicals are present in the tracks of larvae, which deter conspecific female ladybirds from laying eggs in aphid c
Externí odkaz:
https://doaj.org/article/3cd7227a6e7943129c6a3c7f6e72798b
Publikováno v:
European Journal of Entomology, Vol 97, Iss 4, Pp 559-562 (2000)
Coccinella septempunctata was approximately 20% more reluctant to eat the eggs of Adalia bipunctata than the reverse. In addition, fourth instar larvae of C. septempunctata failed to complete their development on a diet of A. bipunctata eggs and only
Externí odkaz:
https://doaj.org/article/5c1355802bb64da392ca36eeef5e4807
Autor:
Graham W. HOPKINS, Anthony F.G. DIXON
Publikováno v:
European Journal of Entomology, Vol 97, Iss 2, Pp 279-280 (2000)
To establish the importance of different cues for feeding site location in aphids, two birch-feeding species were given access to leaves that were either orientated normally or inverted. Euceraphis betulae used gravity and/or light as the main cue, a
Externí odkaz:
https://doaj.org/article/aff491c29cab424da63ad404bbfefd1f
Autor:
Anthony F.G. Dixon
Publikováno v:
Japanese journal of applied entomology and zoology. 40:185-190
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5914ab688976da3db5eea1bc90e0d437
https://doi.org/10.1303/jjaez.40.185
https://doi.org/10.1303/jjaez.40.185