Results 41 to 50 of about 5,670 (235)

Decline in Relative Abundance of Hippodamia convergens (Coleoptera: Coccinellidae) in Fall Shoreline Aggregations on Western Lake Superior [PDF]

, 2017
In the 1970s, migratory coccinellid aggregations on western Lake Superior shorelines consisted of over 90% Hippodamia convergens Guérin-Méneville. In 2014, the alien Harmonia axyridis (Pallas) accounted for over 80% of shoreline coccinellid aggregations ...
Lumen, Ryan P, Steffens, Wayne P
core   +3 more sources

First Occurrence of \u3ci\u3eHippodamia Variegata\u3c/i\u3e (Goeze) (Coleoptera: Coccinellidae) in Ohio [PDF]

, 2018
(excerpt) Ladybird beetles, or coccinellids (Coleoptera: Coccinellidae), are significant arthropod predators in a variety of terrestrial ecosystems. Numerous classical biological control projects undertaken over the last 120 years in North America have ...
Bergolc, Melanie L, Hughes-Williams, Laura, Keeler, Danielle M, Pavuk, Daniel M, Stelzer, Sadira, Sundermeier, Alan, Wadsworth, Andrea M   +6 more
core   +2 more sources

Morpho-taxonomic study of genus Coccinella (Coleoptera: Coccinellidae) in agricultural ecosystems of Doon Valley, Uttarakhand

Environment Conservation Journal
Present study was carried out to know the Morpho-Taxonomic Status of Genus Coccinella (Coleoptera: Coccinellidae) in Agricultural Ecosystem of Doon Valley, Uttarakhand.
Pramod Chandra Khanduri, Pushpendra Kr. Sharma   +1 more
doaj   +1 more source

Voracity of Coccinella undecimpunctata: effects of insecticides when foraging in a prey/plant system [PDF]

, 2011
Copyright © Springer-Verlag 2011.Coccinella undecimpunctata L. is a euryphagous predator established in Azores that offers interesting potential as a control agent in the context of integrated pest management (IPM).
Cabral, Susana, Garcia, Patrícia, Soares, António O.   +2 more
core   +1 more source

Long term changes in abundance of Coccinella septempunctata (Coleoptera: Coccinellidae) in the Czech Republic

European Journal of Entomology, 2005
Since 1978, the abundance of Coccinella septempunctata L. has been recorded at a hibernation site in the western Czech Republic. Over the years, abundance varied by two orders of magnitude and a long-term trend for decrease in C. septempunctata abundance
Alois HONĚK, Zdeňka MARTINKOVÁ
doaj   +1 more source

Assessing the ecological risk posed by a recently established invasive alien predator: Harmonia axyridis as a case study [PDF]

, 2016
Invasive alien predators are a serious threat to biodiversity worldwide. However, there is no generic method for assessing which local species are most at risk following the invasion of a new predator.
A Katsanis, A Thomas, AE Hajek, Angelos Katsanis, AO Soares, B D’hondt, C Bellard, C MacNeil, CA Bahlai, CL Raak-van den Berg, DA Holway, Dirk Babendreier, Dirk Maes, DL Wagner, Etienne Branquart, G Rondoni, G Rondoni, G Rondoni, GA Polis, Gilles San Martin, HE Roy, HE Roy, HE Roy, Helen E. Roy, I Hodek, J-P Jansen, JC Lenteren van, JK Pell, JL Long, Johan Van Vlaenderen, JP Harmon, JP Michaud, JR Beggs, L Hautier, Louis Hautier, M Colunga-Garcia, M Kenis, M Nóia, Marc Kenis, P Hulme, Peter M. J. Brown, PMJ Brown, PMJ Brown, R Eschen, Remy L. Poland, Renate Zindel, René Eschen, RF Comont, RL Koch, RL Koch, RL Ware, RL Ware, RL Ware, S Félix, S Kumschick, S Kumschick, S Sato, T Adriaens, T Adriaens, Tim Adriaens, WE Snyder   +60 more
core   +1 more source

Competition for Aphid Prey between Different Lady Beetle Species in a Laboratory Arena

Psyche: A Journal of Entomology, 2012
Direct competition for aphid prey (Hemiptera: Aphididae) was evaluated between and among several lady beetle species (Coleoptera: Coccinellidae). The behavior of three native (Coccinella trifasciata, Coleomegilla maculata, and Hippodamia convergens) and ...
Christy Leppanen, Andrei Alyokhin, Serena Gross   +2 more
doaj   +1 more source

Foraging in a complex environment - semiochemicals support searching behaviour of the seven spot ladybird

European Journal of Entomology, 2005
Knowledge of semiochemically-mediated behavioural mechanisms of the seven-spot ladybird, Coccinella septempunctata L., is limited but sufficient to encourage further studies in the behavioural ecology of this well known insect.
Jan PETTERSSON, Velemir NINKOVIC, Robert GLINWOOD, Michael A. BIRKETT, John A. PICKETT   +4 more
doaj   +1 more source

Long-term changes in communities of native coccinellids: population fluctuations and the effect of competition from an invasive non-native species [PDF]

, 2016
1. We assessed the changes in abundance and community composition of native species of coccinellids (Coleoptera: Coccinellidae) on deciduous trees that occurred between 1970s and 2010s, in the Czech Republic. 2.
Dixon, Anthony F.G., Honek, Alois, Martinkova, Zdenka, Pekár, Stano, Roy, Helen E.   +4 more
core   +1 more source

EFFECT OF SOME INSECTICIDES ON APHID INSECT MYZUS PERSICAE (Sulzer) AND IT’S PREDATORS AND PARASITES [PDF]

Mesopotamia Journal of Agriculture, 2020
Present study aimed to determine the effects of three insecticides which were Actara, Match and Nimex on Myzuspersicae (Sulzer)  and on it’s both parasite Aphidiusmatricariae Halidayand predators Coccinellaseptempunctata L.
juhina mohammed ali
doaj   +1 more source