Results 151 to 160 of about 123,634 (334)

Rare or threatened vascular plant species of Wollemi National Park, central eastern New South Wales [PDF]

open access: yes, 2013
Wollemi National Park (c. 32o 20’– 33o 30’S, 150o– 151oE), approximately 100 km north-west of Sydney, conserves over 500 000 ha of the Triassic sandstone environments of the Central Coast and Tablelands of New South Wales, and occupies approximately 25 ...
Bell, Stephen A. J.
core  

Negative ecological impacts of honeybees begin at densities below recommended levels for crop pollination

open access: yesJournal of Applied Ecology, EarlyView.
The ecological consequences of high‐density honeybee management are significant, calling for a re‐evaluation of pollination strategies in agricultural landscapes. Setting evidence‐based hive density guidelines is critical to balancing agricultural productivity with the conservation of native pollinator communities and the maintenance of healthy ...
Ainhoa Magrach   +2 more
wiley   +1 more source

Carboxylate release as a nutrient‐acquisition strategy in mycorrhizal plant species in phosphorus‐impoverished environments

open access: yesJournal of Ecology, EarlyView.
Many mycorrhizal plant species very likely depended on root carboxylate release to acquire P at the P‐impoverished study sites. Arbuscular mycorrhizal species exhibited a less conservative nutrient‐utilisation strategy with higher leaf [P] than cluster‐rooted non‐mycorrhizal species and accessed more inorganic N.
Xiao Wang   +8 more
wiley   +1 more source

Ants on flowers: Protective ants impose a low but variable cost to pollination, moderated by location of extrafloral nectaries and type of flower visitor

open access: yesJournal of Ecology, EarlyView.
Individuals who engage in multiple mutualisms often have to pay indirect costs because of the interference of one mutualism on another. We found that protective ants had a low but variable impact on pollination, especially on the flower visitation by bees and when EFNs are close to inflorescences.
Amanda Vieira da Silva   +4 more
wiley   +1 more source

Wood density variation across an Andes‐to‐Amazon elevational gradient

open access: yesJournal of Ecology, EarlyView.
We study how wood density varies along a 3500‐m elevational gradient, spanning from the Andean tree line to the Amazon basin. Our results reveal that wood density decreases from low to mid‐elevations, then increases toward the tree line. These patterns underscore the influence of species composition, life forms such as tree ferns, and local ...
William Farfan‐Rios   +17 more
wiley   +1 more source

Breaking the norm: Absence of seed size/seed number trade‐off in Hymanaea stigonocarpa, a tree species from the Brazilian semi‐arid

open access: yesPlant Species Biology, EarlyView.
Seed size/number trade‐off is a central topic in plant biology as it reflects ecological and evolutionary aspects of the species. Here we report the absence of a trade‐off mass/number of seeds and fruits in a polyspermic plant probably associated to abortion of self‐pollinated pistils and flowers.
Marcilio Fagundes   +5 more
wiley   +1 more source

Числа хромосом инвазионных видов во флоре Республики Алтай: сообщение 1

open access: yesTurczaninowia, 2018
Приводятся данные о числах хромосом (2n) для 13 инвазионных видов из семейств Asteraceae, Boraginaceae, Brassicaceae, Fabaceae, Lamiaceae и Plantaginaceae, полученные на материале из Республики Алтай.
E.Yu. Zykova   +2 more
doaj  

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