Results 251 to 260 of about 37,019 (296)

Effects of tree diversity on insect herbivory

Journal of Forestry Research, 2021
Tree diversity has long been considered a key driver of insect herbivory in forest ecosystems. However, studies have given contradictory results: increased tree diversity can have positive, negative or neutral effects on insect herbivory. Since many issues can complicate the tree-herbivore interactions, the descriptor ‘tree diversity’ per se actually ...
Xinliang Shao, Ke Cheng, Yuhua Kong, Qin Zhang, Xitian Yang   +4 more
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Deciduous leaf drop reduces insect herbivory

Oecologia, 2007
Deciduous leaf fall is thought to be an adaptation that allows plants living in seasonal environments to reduce water loss and damage during unfavorable periods while increasing photosynthetic rates during favorable periods. Observations of natural variation in leaf shedding suggest that deciduous leaf fall may also allow plants to reduce herbivory.
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Plant Defenses Against Insect Herbivory

2010
Herbivory, the act of consumption of plant biomass by specialist animals, regulates the cycling of biotic and abiotic ecosystem components, through a complex process transferring materials among various trophic levels. Herbivores include insects and mammals of varying sizes, the former being most important due to their high diversity.
null Farha-Rehman, Fareed A. Khan, Shoeba B. Anis, S. M. A. Badruddin   +3 more
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Insect herbivory on C3 and C4 grasses

Oecologia, 1978
This study tested the hypothesis that grasses with the C4 photosynthetic pathway are avoided as a food source by insect herbivores in natural communities. Insects were sampled from ten pairs of C3-C4 grasses and their distributions analyzed by paired comparisons tests.
Thomas W, Boutton, Guy N, Cameron, Bruce N, Smith   +2 more
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Tree diversity reduces herbivory by forest insects

Ecology Letters, 2007
AbstractBiodiversity loss from plant communities is often acknowledged to affect primary production but little is known about effects on herbivores. We conducted a meta‐analysis of a worldwide data set of 119 studies to compare herbivory in single‐species and mixed forests.
Jactel, Herve, Brockerhoff, Eckehard G.
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Background Insect Herbivory: Impacts, Patterns and Methodology

2017
Plants provide humans with oxygen, food, fibre and fuel, but their effectiveness in performing these roles is affected by herbivores. Historically, studies on insect herbivory have primarily addressed pest outbreaks, which have indisputable ecological and economic consequences.
Zvereva Elena, Kozlov Mikhail
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Insect herbivory and woody plants

1982
Wood is persistent and woody plants may live to a great age. An important reason for this is that relatively few insects have evolved to exploit wood in living plants. Most species feed on the softer and more transient tissues of woody plants such as leaves, fine roots, flowers, fruits and to a lesser extent the meristems.
I. D. Hodkinson, M. K. Hughes
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Intercropping Alters Phytochemicals Associated With Insect Herbivory

Journal of Chemical Ecology
Given the multiple possible mechanisms for interspecific chemical interaction between adjacent heterospecific plants, phytochemical profiles, which include phytochemical defense compounds, of crop species could potentially be enhanced or altered by intercropping with phytochemically diverse neighbors.
Jarrod Q. Fyie, Chase A. Stratton, William R. Morrison, Ebony G. Murrell   +3 more
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Significance of phototoxic phytochemicals in insect herbivory

Journal of Chemical Ecology, 1986
The significance of the wide range of phototoxins, occurring in many plant species, with respect to their role in insect herbivory and on insects, is not fully understood. The types of compounds include polyacetylenes, quinones, furanocoumarins, tryptophan- and tyrosine-derived alkaloids and are distributed throughout some of the major families of ...
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ANTAGONISTIC INTERACTIONS BETWEEN PLANT COMPETITION AND INSECT HERBIVORY

Ecology, 2007
Interspecific competition between plants and herbivory by specialized insects can have synergistic effects on the growth and performance of the attacked host plant. We tested the hypothesis that competition between plants may also negatively affect the performance of herbivores as well as their top-down effect on the host plant.
Martin, Schädler, Roland, Brandl, Josephine, Haase   +2 more
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