Results 141 to 150 of about 144,743 (352)

Ecological Observations on Predatory Coccinellidae (Coleoptera) in Southwestern Michigan [PDF]

open access: yes, 2017
Ecological observations on habitat utilization by thirteen species of predatory Coccinellidae were made at a southern Michigan site during 1989 and 1990. Most of species were common during both years and used both agricul- tural and uncultivated habitats.
Gage, S. H   +3 more
core   +2 more sources

Quantifying phenotypic plasticity: A call for consistency

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The interest of evolutionary, functional and applied ecologists in the study of phenotypic plasticity has grown considerably in recent decades. From being considered irrelevant in the mid‐20th century, phenotypic plasticity is now considered ubiquitous and essential for
Jose M. Gómez   +3 more
wiley   +1 more source

Influence of Previous Infestation of Wheat Leaves and Ears by Sitobion avenae on Interaction with Rhopalosiphum padi

open access: yesInsects
Different herbivorous species that share a host plant may interact via competition or facilitation, depending on whether the interaction partners are hindered by or benefit from the interaction.
Andreas Bühler, Rabea Schweiger
doaj   +1 more source

Aphid acceptance of Hordeum genotypes is affected by plant volatile exposure and is correlated with aphid growth [PDF]

open access: yes, 2009
Nineteen genotypes of Hordeum vulgare were characterized as partially resistant or susceptible regarding growth of the bird cherry - oat aphid (Rhopalosiphum padi L.).
Ninkovic, Velemir, Åhman, Inger
core   +1 more source

The role of developmental plasticity in eco‐phenotypic population dynamics

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Individual variation in development can strongly impact population density via its impact on demography. When this variation in development is caused by developmental plasticity, the resulting effects on population density are characterised as ‘eco‐phenotypic dynamics ...
Lukas H. A. Edwards   +1 more
wiley   +1 more source

The aphid sex pheromone

open access: yesPure and Applied Chemistry, 1989
Abstract
Dawson, G. W.   +6 more
openaire   +2 more sources

Developmental Rate and Longevity of \u3ci\u3eIllinoia Pepperi\u3c/i\u3e (Homoptera: Aphididae) on Excised Blueberry Leaf Disks [PDF]

open access: yes, 2017
The aphid Illinoia pepperi is the vector of blueberry shoestring virus, a serious disease of cultivated high bush blueberry. We present a laboratory study of the developmental rate of I.
Elsner, E. A, Whalon, M. E
core   +2 more sources

An epigenomic threshold hypothesis for integrating dynamic environmental signals into functional models of developmental polyphenisms

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Interactions between developing embryos and a multitude of environmental factors (e.g. climate, nutrition, social cues, stress and anthropogenic contaminants) underlie adaptive and non‐adaptive developmental plasticity and carry broad implications across ecological ...
Benjamin B. Parrott, Samantha L. Bock
wiley   +1 more source

Contrasting Roles of Deoxynivalenol and Nivalenol in Host-Mediated Interactions between Fusarium graminearum and Sitobion avenae

open access: yesToxins, 2016
Fusarium graminearum is the predominant causal species of Fusarium head blight in Europe and North America. Different chemotypes of the species exist, each producing a plethora of mycotoxins.
Jassy Drakulic   +4 more
doaj   +1 more source

Landscape diversity can promote functional diversity of spider assemblages while habitat characteristics filter for specific traits

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Agricultural landscape simplification due to the loss of semi‐natural habitats can act as an environmental filter for species and their functional traits. Both local‐ and landscape‐level factors can shape community structure; although through different mechanisms.
Marco Ferrante   +7 more
wiley   +1 more source

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