منابع مشابه
Clumped distribution of oak leaf miners between and within plants
Leaf miners typically show non-random distributions both between and within plants. We tested the hypothesis that leaf miners on two oak species were clumped on individual host trees and individual branches and addressed whether clumping was influenced by aspects of plant quality and how clumping and/or interactions with other oak herbivores affected leaf-miner survivorship. Null models were us...
متن کاملElevated CO2 decreases leaf fluctuating asymmetry and herbivory by leaf miners on two oak species
Fluctuating asymmetry (FA) represents small, random variation from symmetry in otherwise bilaterally symmetrical characters. Significant increases in FA have been found for several species of plants and animals in response to various stresses, including environmental and genetic factors. In this study, we investigated the effects of elevated CO2 on leaf symmetry of two oak species, Quercus gemi...
متن کاملIndirect Interactions Between Temporally Separated Herbivores Mediated by the Host Plant
I tested the hypothesis that early season herbivory by leaf-chewing insects affects distribution, densities, and survivorship of late-feeding, leaf-mining insects; early chewing may physically and chemically alter quality of leaves for later leaf miners on the shared host plant, Quercus emoryi. Proportions of intact leaves and leaves damaged by native leaf chewers on six control and six experim...
متن کاملNovel Insect Leaf-Mining after the End-Cretaceous Extinction and the Demise of Cretaceous Leaf Miners, Great Plains, USA
Plant and associated insect-damage diversity in the western U.S.A. decreased significantly at the Cretaceous-Paleogene (K-Pg) boundary and remained low until the late Paleocene. However, the Mexican Hat locality (ca. 65 Ma) in southeastern Montana, with a typical, low-diversity flora, uniquely exhibits high damage diversity on nearly all its host plants, when compared to all known local and reg...
متن کاملMiners' Nystagmus an Investigation of Miners' Nystagmus
As an ophthalmic and aural surgeon practising in a colliery area, I meet many cases of miners' nystagmus in miners' hospitals, and mnany cases are referred to me by colliery companies and the South Wales Miners' Federation. I feel I have some advantage over some previous investigators, I am both an ophthalmic and an aural surgeon; I have not read any literature which states that the inner ear h...
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ژورنال
عنوان ژورنال: STEAM
سال: 2016
ISSN: 2327-2074
DOI: 10.5642/steam.20160202.11