Results 131 to 140 of about 109,439 (302)

X-ray based tree ring analyses [PDF]

open access: yes, 2004
In this thesis, two x-ray based dendro-analyses (batch-wise microdensitometry and energy dispersive x-ray fluorescence (EDXRF)) and the conditions under which these methods could be used on the two typical boreal conifers Norway spruce (Picea abies (L ...
Lindeberg, Johan
core  

Alpine flora of Kashmir Himalaya: floristic assessment, life history traits and threat status

open access: yesNordic Journal of Botany, EarlyView.
Alpine ecosystems in the Himalaya are considered to be at a higher risk to anthropogenic global change drivers. The Kashmir Himalaya, located in the north‐western side of the Himalayan biodiversity hotspot, harbors a diverse alpine flora, which remains systematically little investigated.
Bilal A. Rasray   +5 more
wiley   +1 more source

Pinguicula brendae (Lentibulariaceae) sp. nov., a carnivorous plant from a tropical montane cloud forest in Hidalgo, Mexico

open access: yesNordic Journal of Botany, EarlyView.
A new species of Lentibulariaceae, Pinguicula brendae Rodríguez‐Ramírez, H.Shimai & A.R. Andrés‐Hernández, is described based on its unique morphological characteristics. This species is restricted to limestone rock walls in the San Bartolo Tutotepec municipality, central‐eastern Hidalgo, Mexico, where it inhabits a single locality on vertical, north ...
Ernesto C. Rodríguez‐ Ramírez   +2 more
wiley   +1 more source

Amanita theophili sp. nov. (Amanitaceae) from central Mexico

open access: yesNordic Journal of Botany, EarlyView.
Amanita theophili sp. nov., a member of Amanita sect. Amidella (Amanitaceae), is described from temperate pine‐oak forests in Morelos, central Mexico. Morphological features and phylogenetic analyses based on ITS and 28S rDNA sequences confirm its distinct taxonomic status. The new species is morphologically similar to A. peckiana and A.
Evangelina Pérez‐Silva   +1 more
wiley   +1 more source

Community dynamics of lignicolous lichens on standing deadwood in a 275‐year chronosequence

open access: yesOikos, EarlyView.
Dead trees provide discrete habitat patches in which patch quality changes gradually due to wood decomposition. Although in most cases these patches persist for not more than a few decades, in some ecosystems deadwood decomposition and the consequent change in habitat patch quality can be a centuries‐long process, potentially leading to dynamics of ...
Aleksi Nirhamo   +4 more
wiley   +1 more source

Toward a Framework for Understanding Localization in Its Institutional Context: A Systems Perspective for Incorporating Local Values

open access: yesPublic Administration and Development, EarlyView.
ABSTRACT This paper explores how we might integrate local traditional values into a systems approach for analyzing and maximizing localization in the context of foreign aid. The paper situates localization and its operationalization in the older and broader literature on the political economy of foreign aid.
Jennifer M. Brinkerhoff
wiley   +1 more source

Multi-omic Analyses of Extensively Decayed Pinus contorta Reveal Expression of a Diverse Array of Lignocellulose-Degrading Enzymes. [PDF]

open access: yes, 2018
Fungi play a key role cycling nutrients in forest ecosystems, but the mechanisms remain uncertain. To clarify the enzymatic processes involved in wood decomposition, the metatranscriptomics and metaproteomics of extensively decayed lodgepole pine were ...
Barry, Kerrie   +13 more
core  

Abies pectinata

open access: yes, 1956
Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp.
openaire   +1 more source

What does coexistence mean? Insight from place‐based trajectories of pastoralists and bears encounters in the Pyrenees

open access: yesPeople and Nature, EarlyView.
Abstract The recovery of large carnivores in Europe raises issues related to sharing landscape with humans. Beyond technical solutions, it is widely recognized that social factors also contribute to shaping coexistence. In this context, scholars increasingly stress the need to adopt place‐based approaches by analysing how humans and wildlife interact ...
Alice Ouvrier   +7 more
wiley   +1 more source

Tracing change in the public perception of plants: insights from archives and social media in China

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
As urbanization accelerates, historic gardens serve as vital cultural treasures that offer spiritual and cultural support to the public. This study proposes an innovative approach that merges historical records from the Qing Dynasty with contemporary social media data to explore changes in public perceptions of these gardens.
Dong Xu   +4 more
wiley   +1 more source

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