Results 41 to 50 of about 40,765 (259)

Check list of ground-dwelling ant diversity (Hymenoptera: Formicidae) of the Iguazú National Park with a comparison at regional scale [PDF]

open access: yes, 2015
We describe the ant fauna of Iguazú National Park (INP), a region of high biodiversity andendemism in northeastern Argentina that includes the southernmost protected area ofthe Atlantic Forest (AF).
Achury, R.   +6 more
core   +2 more sources

Linking regional and global functional trait data: insights from mammal communities in a fragmented Atlantic Forest landscape

open access: yesOikos, EarlyView.
Accurate functional trait data are essential for understanding ecosystem services and processes in fragmented landscapes. We evaluated whether the global EltonTraits 1.0 database adequately represents the functional structure of mammal communities in forest fragments and restoration sites in a highly fragmented Atlantic Forest landscape.
Maria F. R. Godoi   +5 more
wiley   +1 more source

Carbono orgânico e atributos químicos do solo em áreas florestais Organic carbon and soil chemical attributes in forest areas

open access: yesRevista Árvore, 2008
O objetivo deste estudo foi avaliar teores de carbono orgânico e atributos químicos do solo em áreas localizadas em Campo Belo do Sul, SC, nos seguintes usos da terra: campo nativo (CN); floresta de pinus (Pinus taeda) com 12 anos (P12); floresta de ...
Álvaro Luiz Mafra   +5 more
doaj   +1 more source

Populations of OB-type stars in galaxies [PDF]

open access: yes, 2010
One of the challenges for stellar astrophysics is to reach the point at which we can undertake reliable spectral synthesis of unresolved populations in young, star-forming galaxies at high redshift. Here I summarise recent studies of massive stars in the
Brinchmann   +28 more
core   +1 more source

From traditional practice to unsustainable exploitation: Fruit overharvesting on the endangered relict palm Jubaea chilensis

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Overharvesting of wild edible plants poses a growing threat to plant populations worldwide, particularly for slow‐growing species with limited regeneration. We quantified fruit extraction from the third‐largest known population of Jubaea chilensis—an endangered palm endemic to Chile—modeled the critical harvest threshold, and assessed consumer ...
Sebastián Cordero   +7 more
wiley   +1 more source

Análise multivariada de atributos microbiológicos e químicos do solo em florestas com Araucaria angustifolia Multivariate analysis of soil microbiological and chemical attributes in forests with Araucaria angustifolia

open access: yesRevista Brasileira de Ciência do Solo, 2008
Araucaria angustifolia é uma espécie de árvore ameaçada de extinção no Brasil e pouco se conhece sobre os atributos edáficos dessas florestas. Este estudo foi realizado com o objetivo de identificar diferenças entre áreas com araucária naturais e ...
Dilmar Baretta   +2 more
doaj   +1 more source

El escepticismo en el pensamiento político e histórico de David Hume [PDF]

open access: yes, 2018
This essay argues that Hume’s political and historical thought is well read as skeptical and skeptical in a way that roots it deeply in the Hellenistic traditions of both Pyrrhonian and Academical thought. It deploys skeptical instruments to undermine
Fosl, Peter S.
core  

"Beasts in human form": How dangerous speech harms [PDF]

open access: yes, 2019
Recent years have seen an upsurge of inflammatory speech around the world. Understanding the mechanisms that correlate speech with violence is a necessary step to explore the most effective forms of counterspeech.
Marques, Teresa
core   +3 more sources

Hevea brasiliensis seeds: A novel sustainable feedstock for ethanol production

open access: yesVietnam Journal of Chemistry, EarlyView.
Abstract The rubber tree (Hevea brasiliensis) is cultivated on a large scale mainly for the extraction of latex in Brazil and Southeast Asia, also generating large quantities of seeds. These seeds currently do not have large‐scale applications and may thus be considered as a residue.
Giovano Tochetto   +4 more
wiley   +1 more source

Availability of a Keystone Plant Resource Reduces Niche Overlap and Drives Distinct Species‐Specific Changes in Niche Breadth Among Small Rodents

open access: yesIntegrative Zoology, EarlyView.
We investigated how three rodent species respond to the seasonal availability of Araucaria angustifolia seeds. While Oligoryzomys spp. increased seed consumption and abundance during seed production, the more insectivorous Akodon paranaensis maintained a broader diet.
Adriana A. Perini, Emerson M. Vieira
wiley   +1 more source

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