The Convergence in Growth of Foliage-Chewing Insect Species on Individual Mountain Birch Trees

10.2307/5798 ◽  
1995 ◽  
Vol 64 (5) ◽  
pp. 543 ◽  
Author(s):  
Sinikka Hanhimaki ◽  
Josef Senn ◽  
Erkki Haukioja
Keyword(s):  
Insect Species ◽  
Mountain Birch ◽  
Birch Trees

Variation among and within mountain birch trees in foliage phenols, carbohydrates, and amino acids, and in growth ofEpirrita autumnata larvae

1995 ◽  
Vol 21 (10) ◽  
pp. 1421-1446 ◽  
Author(s):  
Janne Suomela ◽  
Vladimir Ossipov ◽  
Erkki Haukioja
Keyword(s):  
Amino Acids ◽  
Mountain Birch ◽  
Birch Trees

Variable responses of folivorous sawflies to leaf quality of mountain birch

2005 ◽  
Vol 35 (1) ◽  
pp. 189-198 ◽  
Author(s):  
Marianna Riipi ◽  
Antti Kause ◽  
Erkki Haukioja ◽  
Vladimir Ossipov ◽  
Svetlana Ossipova ◽  
...  
Keyword(s):  
Larval Growth ◽  
Leaf Traits ◽  
Mountain Birch ◽  
Leaf Water Content ◽  
Larval Performance ◽  
Leaf Quality ◽  
Tree Resistance ◽  
Leaf Consumption ◽  
Birch Trees ◽  
Herbivore Consumption

We studied whether the larval performance of four sawfly species feeding on mountain birch (Betula pubescens subsp. czerepanovii (Orlova) Hämet-Ahti) leaves at different times of the growing season was related to the same chemical and physical leaf traits. In the three phenologically earliest species, larval growth was related to the same set of leaf traits. In contrast, consumption of leaf material was related to different leaf traits in all of the four species. Leaf suitability for herbivore growth and tree resistance to herbivore consumption were thus not always determined by the same leaf traits. Leaf water content and toughness had the strongest associations with larval performance. Phenolics, which are often considered the main resistance compounds in deciduous trees, explained only a small part of the variance in leaf consumption, but some groups of phenolics were negatively related to larval growth. In conclusion, the same mountain birch trees were not resistant to all of the studied sawflies in terms of leaf consumption, but low leaf suitability, which was related to the same set of leaf traits in the case of three sawfly species, may serve birch resistance, e.g., by exposing larvae to natural enemies for a longer period.

Effects of three years’ increase in density of the geometrid Epirrita autumnata on the change in metabolome of mountain birch trees (Betula pubescens ssp. czerepanovii)

Chemoecology ◽  
2014 ◽  
Vol 24 (5) ◽  
pp. 201-214 ◽  
Author(s):  
Vladimir Ossipov ◽  
Tero Klemola ◽  
Kai Ruohomäki ◽  
Juha-Pekka Salminen
Keyword(s):  
Betula Pubescens ◽  
Mountain Birch ◽  
Epirrita Autumnata ◽  
Birch Trees

Genetic and Environmental Variation in Rust Frequency on Mature Mountain Birch Trees

2000 ◽  
Vol 15 (5) ◽  
pp. 510-522 ◽  
Author(s):  
Pirjo Elamo ◽  
Irma Saloniemi ◽  
Marjo L. Helander ◽  
Seppo Neuvonen
Keyword(s):  
Environmental Variation ◽  
Mountain Birch ◽  
Birch Trees

Ranking of individual mountain birch trees in terms of leaf chemistry: seasonal and annual variation

Chemoecology ◽  
2004 ◽  
Vol 14 (1) ◽  
pp. 31-43 ◽  
Author(s):  
Marianna Riipi ◽  
Erkki Haukioja ◽  
Ky�sti Lempa ◽  
Vladimir Ossipov ◽  
Svetlana Ossipova ◽  
...  
Keyword(s):  
Annual Variation ◽  
Mountain Birch ◽  
Leaf Chemistry ◽  
Birch Trees

Preliminary Results on Aquatic Insects in the Me Linh Station for Biodiversity, Vinh Phuc Province

2017 ◽  
Vol 33 (4) ◽  
Author(s):  
Nguyen Van Hieu ◽  
Nguyen Van Vinh
Keyword(s):  
Quantitative Analysis ◽  
Aquatic Insects ◽  
Field Survey ◽  
Aquatic Insect ◽  
Insect Species ◽  
Functional Feeding Groups ◽  
Species Number ◽  
Feeding Groups ◽  
Preliminary Results

An intensive field survey on aquatic insects of Me Linh Station for Biodiversity in Vinhphuc province was conducted in December 2015. Specimens were collected at 8 different sites and aquatic insects were collected both quantitatively by Surber net and qualitatively by hand net, pond net. As a result, a total of 110 aquatic insect species belonging to 98 genera, 49 families and 9 orders were recognized. Among these, the order Ephemeroptera had the highest species number with 26 species, followed by Odonata with 25 species, Trichoptera with 18 species, Coleoptera with 15 species, Hemiptera with 11 species, Diptera with 9 species. Lepidoptera, Plecoptera and Megaloptera had the lowest of species number, represented by 3 species of Lepidoptera, 2 species of Plecoptera and 1 species of Megaloptera. Besides, the quantitative analysis results and the functional feeding groups were provided.

Interspecific competition between Rhinocyllus conicus and Urophora soistitialis L on nodding thistle in Canterbury

2005 ◽  
Vol 58 ◽  
pp. 140-147 ◽  
Author(s):  
M.R. McNeill ◽  
C.J. Fletcher
Keyword(s):  
Interspecific Competition ◽  
Insect Species ◽  
Carduus Nutans ◽  
Rhinocyllus Conicus ◽  
Microctonus Aethiopoides

Nodding thistle receptacle weevil Rhinocyllus conicus and gallfly Urophora solstitialis attack the capitula of nodding thistle Carduus nutans L Between 31 October and 15 December 2003 the phenology of both R conicus and U solstitialis was studied at a dryland site in Canterbury Adult R conicus were more numerous than U solstitialis on capitula throughout the experiment Larvae of R conicus were first found on 11 November (15 of capitula infested) and peaked on 2 December with 53 of capitula infested Only 3 of capitula were infested by U solstitialis Adult R conicus or U solstitialis emerged from 79 of the selected primary and secondary capitula The majority of infested capitula (81) contained only R conicus 2 contained only U solstitialis while 17 contained both insect species Parasitism of R conicus by the braconid parasitoid Microctonus aethiopoides was low and occurred when most weevil eggs had been laid

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