Results 81 to 90 of about 37,019 (296)
Overexploitation can counteract top‐down control and the paradox of enrichment in simple food chains
Oikos, EarlyView.Because of its high abundance or its high feeding intensity, a consumer can overexploit its resource by consuming it on a shorter timescale than resource regeneration. While this short‐term overexploitation is widespread in nature, its general implications for biotic control patterns and ecosystem stability are not clear.
Josquin Guerber +2 more
wiley +1 more source
AM fungal colonization minimizes disease damage on tomato during later life stages while delaying fruit development [PDF]
, 2020 Beneficial soil microbes, such as arbuscular mycorrhizal (AM) fungi, can help prepare plants for defense through a mechanism known as priming. Two of the most important unresolved questions in the field of AM fungal-mediated plant defense are (1) whether
Bingman, Jimmy
core
Long- and short-term induction of defences in seedlings of Shorea leprosula (Dipterocarpaceae): support for the carbon: nutrient balance hypothesis [PDF]
, 2005 The induction of carbon-based secondary metabolites in leaves following damage has been proposed to be a result of a shift in the carbon:nutrient balance, when growth is limited by nutrients in relation to carbon.
Hartley, S.E., Massey, F.P., Press, M.C.
core +2 more sources
Genetic Diversity Increases Insect Herbivory on Oak Saplings
PLoS ONE, 2012 A growing body of evidence from community genetics studies suggests that ecosystem functions supported by plant species richness can also be provided by genetic diversity within plant species. This is not yet true for the diversity-resistance relationship as it is still unclear whether damage by insect herbivores responds to genetic diversity in host ...
Castagneyrol, Bastien +4 more
openaire +6 more sources
Plant Defense Against Herbivory and Insect Adaptations [PDF]
AoB PLANTS, 2018 هناك دائمًا حرب صامتة بين النباتات والحشرات العاشبة التي نادرًا ما نطلع عليها. في هذه الحرب الصامتة، تعمل المواد الكيميائية كأسلحة ورسل على حد سواء. يستمر التطور المشترك بين الحشرات والنباتات لملايين السنين. تبحث النباتات دائمًا عن استراتيجيات جديدة لتجنب الآفات الحشرية والحشرات، بدورها، تكون دائمًا على استعداد لتطوير تكيفات مضادة.
Abdul Rashid War +5 more
openaire +1 more source
Serpentine Soils Shape Plant Traits and Herbivory
The Bulletin of the Ecological Society of America, EarlyView.
Xoaquín Moreira +12 more
wiley +1 more source
Seasonal variation of leaf functional traits in sub‐Arctic plants
Oikos, EarlyView.Leaf functional traits are informative of plant fitness and functions in ecosystems. These functional traits and their variation across geographic extents are much studied but less is known about their temporal variation over a growing season. Here, we provide an analysis of the seasonal variation in six leaf functional traits of 11 sub‐Arctic vascular
Pekka Niittynen +2 more
wiley +1 more source
Global Ecology and Conservation, 2015 Current theory suggests that ecosystem services in fragmented landscapes can be maintained by preserving connectivity of remaining habitat patches. However connectivity does not always influence services positively.
Dorothy Y. Maguire +3 more
doaj +1 more source
Impact of pine looper defoliation in Scots pine [PDF]
, 2003 Widespread defoliation of forests caused by insects or fungi cause economic losses throughout the world. Successful outbreak management involves cost/benefit estimation and requires knowledge of potential yield losses. Currently, such knowledge is scarce.
Cedervind, Jan
core
Effects of landscape context on herbivory and parasitism at different spatial scales [PDF]
, 2003 Local community structure and interactions have been shown to depend partly on landscape context. In this paper we tested the hypothesis that the spatial scale experienced by an organism depends on its trophic level.
Steffen-Dewenter, Ingolf +2 more
core +1 more source