Results 71 to 80 of about 197,047 (348)

Colours of urban selection: carotenoid‐based signals reveal divergent urban/rural evolutionary trajectories in two closely related passerines

open access: yesOikos, EarlyView.
Urbanisation is a major driver of environmental change, reshaping ecological and evolutionary processes. Urban‐driven phenotypic differences are increasingly documented, but the underlying role of selection is still understudied. One pattern is the consistent reduction of carotenoid‐based plumage pigmentation in city birds.
Nicolas Bekka   +3 more
wiley   +1 more source

Acorn Poisoning as a Potential Threat to Animals

open access: yesProceedings
The acorn is the nut of oak trees (genera Quercus and Lithocarpus) that can be found in the Northern Hemisphere. They are a valuable source of food for many animals (birds, rats, squirrels, pigs), but can pose health risks when consumed in large ...
Andreia Garcês   +2 more
doaj   +1 more source

Intercepción de lluvia en bosques de montaña en la cuenca del río Texcoco, México

open access: yesRevista Mexicana de Ciencias Forestales, 2017
El proceso de intercepción de lluvia por la masa arbórea, como componente del ciclo hidrológico en áreas forestales, está determinado, entre otras causas, por las condiciones climáticas, orográficas y por las características de la vegetación. Se
Eulogio Angel Flores Ayala   +6 more
doaj   +1 more source

Genetic diversity of Quercus petraea, Quercus frainetto, Quercus pubescens, Quercus cerris in Serbia -a review

open access: yes
Alongside the Iberian and Italian peninsulas, the Balkan Peninsula is considered a genetic hotspot for many oak species. As part of the central and western Balkan region, Serbia is home to six species and five subspecies from the section Quercus and one species from the section Cerris.
Kerkez-Janković, Ivona   +6 more
openaire   +2 more sources

Serpentine Soils Shape Plant Traits and Herbivory

open access: yes
The Bulletin of the Ecological Society of America, EarlyView.
Xoaquín Moreira   +12 more
wiley   +1 more source

A graduated nativeness definition for overcoming dilemmas and difficulties of vascular plant species

open access: yesOikos, EarlyView.
Nativeness is a concept central to biodiversity conservation and invasion biology, but there are several problems related to a classic binary nativeness definition. Dilemmas arise from the dynamic nature of species' distribution ranges on longer time scales, and difficulties arise in the application to smaller regions defined by arbitrary borders, and ...
Camilla T. Colding‐Jørgensen   +3 more
wiley   +1 more source

Seasonality, abundance, species richness and specificity of the phytophagous guild of insects on oak (Quercus) canopies

open access: yesEuropean Journal of Entomology, 2004
1. A study was made by knockdown sampling and branch clipping of the arthropod fauna of two native oaks (Quercus petraea and Q. robur) and of two introduced species (Q. cerris and Q. ilex) in woods near Oxford, U.K., and of two native species (Q.
T. E. Richard SOUTHWOOD   +3 more
doaj   +1 more source

Classification and Protection Status of Remnant Natural Plant Communities in Arkansas [PDF]

open access: yes, 1981
A classification and inventory of Arkansas\u27s remaining tracts of relatively undisturbed vegetation was initiated in 1979. Based on extensive literature surveys and field work, the classification includes five physiognomic classes, 17 cover classes ...
Pell, William F.
core   +2 more sources

Growth trends reveal the forest structure during Roman and Medieval times in Western Europe: a comparison between archaeological and actual oak ring series (Quercus robur and Quercus petraea) [PDF]

open access: yes, 2005
At some point in time, man has influenced nearly all forests in Western Europe. Most of the original forest cover has been converted to arable land and pastures, or has been cut for the supply of firewood and construction timber.
Beeckman, Hans   +2 more
core   +3 more sources

Bottom–up and top–down drivers influence urbanization effects on insect herbivory in oaks

open access: yesOikos, EarlyView.
Urban forests provide essential ecosystem services, including pest control, biodiversity conservation, and human health benefits. Herbivory is a widespread biotic interaction that shapes ecosystem functions, such as primary productivity and soil fertility, which underpin these services.
Gabriela Quiroga   +18 more
wiley   +1 more source

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