Results 51 to 60 of about 1,258 (180)

COMPARATIVE INVESTIGATION OF WOOD STRUCTURE AND AIR DRY DENSİTY OF Pinus pinea L. AND OTHER PİNUS SPECİES GROWN IN TURKEY

open access: yesForestist, 2001
Some anatomical features and air dry density of Pinus pinea L. grovvm in İstanbul, Turkey vvere investigated and compared with other Pinus species grovvn in Turkey. The mean tracheid length 2477 pm, tracheid number in per mm2 1067.
A. Doğu, Dilek DOĞU
doaj   +1 more source

Multiple global‐change drivers and cascading effects in Mediterranean ecosystems: Lessons from an iconic national park

open access: yesConservation Science and Practice, Volume 8, Issue 6, June 2026.
Mediterranean ecosystems face complex, multi‐trophic impacts from global‐change drivers, yet responses are often studied in isolation. Using the Doñana Protected Area as a case study, we illustrate how anthropogenic pressures on key species like cork oaks and rabbits, as well as increases in species like wild boar and invasive crayfish, lead to ...
Maria Paniw   +23 more
wiley   +1 more source

Abnormal Shoot and Leaf Formation in Some Native Pine Species

open access: yesForestist, 2011
In many tree species, when abnormal shoot formation after fire, insect attack and grazing is being observed, this formation is not common in pine species and not well-known.
Hatice Yılmaz, Ünal Akkemik
doaj   +1 more source

The Evolution of Hutchinsonian Climatic Niche Hypervolumes in Gymnosperms

open access: yesGlobal Ecology and Biogeography, Volume 35, Issue 6, June 2026.
ABSTRACT Aim The niche is a fundamental concept in theoretical and experimental ecology and is used to describe a wide range of ecological processes from species' interactions with the environment to community assemblies. A common way to represent the niche is through a multidimensional geometry known as the Hutchinsonian niche hypervolume.
Fernanda S. Caron   +3 more
wiley   +1 more source

Occurrence and genetic similarity of Diplodia pinea on shoots and cones in seed orchards of Pinus spp. in north-western Turkey

open access: yesPlant Protection Science, 2014
Diplodia shoot blight disease can cause significant damage on coniferous trees and be particularly injurious to cones, which reduces the amount of seed production and germination.
Tuğba H. DOĞMUŞ-LEHTIJÄRVI   +4 more
doaj   +1 more source

An eco‐evolutionary optimality model explains the acclimated temperature response of photosynthesis

open access: yesNew Phytologist, Volume 250, Issue 5, Page 2884-2899, June 2026.
Summary The optimal temperature of photosynthesis (Topt) generally increases with plant growth temperature. Changes in Topt are associated with changes in the maximum carboxylation capacity at 25°C (Vcmax25) and the maximum electron transport rate at 25°C (Jmax25). The ratio between Jmax25 and Vcmax25 declines with warming.
Wenyao Gan   +5 more
wiley   +1 more source

Mineral Analysis of Pine Nuts (Pinus spp.) Grown in New Zealand

open access: yesFoods, 2013
Mineral analysis of seven Pinus species grown in different regions of New Zealand; Armand pine (Pinus armandii Franch), Swiss stone pine (Pinus cembra L.), Mexican pinyon (Pinus cembroides Zucc. var. bicolor Little), Coulter pine (Pinus coulteri D. Don),
Leo P. Vanhanen, Geoffrey P. Savage
doaj   +1 more source

Electrochemical Oxidation of Abietic and Dehydroabietic Acids for Sustainable Access to C‐7 and C‐15 Oxygenated Abietanes

open access: yesChemSusChem, Volume 19, Issue 9, 14 May 2026.
Batch and flow electrochemical methods enable direct C‐7 oxidation of abietic and dehydroabietic acids from colophony or their methyl derivatives to the corresponding ketones, while a mediated protocol enables additional C‐15 oxygenation, providing sustainable and selective routes to diversified abietane derivatives.
Inês S. Martins   +2 more
wiley   +1 more source

First records of the invasive species Leptoglossus occidentalis Heidemann (Hemiptera: Coreidae) on different coniferous species including the cedars of Lebanon

open access: yesRevista Chilena de Entomología, 2019
The western conifer seed bug, Leptoglossus occidentalis, is an alien invasive species of North American origin. Leptoglossus occidentalis was recorded for the first time in Arsoun-Metn, Lebanon in 2015. Adults and nymphs of L. occidentalis were collected
Nabil Nemer   +5 more
doaj   +1 more source

Tree communities face rising soil water deficits exposure under projected climate change in northern temperate forests

open access: yesEcosphere, Volume 17, Issue 5, May 2026.
Abstract Soil water deficits in temperate forests are projected to become more frequent, more severe, and longer in duration. This study aims to quantify the current (1981–2010) and projected (2041–2070) exposure of 17 tree communities to soil water deficit (severity and duration) in southwestern Quebec, Canada, using the Canadian Land Surface Scheme ...
Jean‐Francois Senecal   +6 more
wiley   +1 more source

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