Results 81 to 90 of about 177,806 (315)

Interactions between maternal provisioning and natural selection on seed mass fluctuate across heat waves

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Changing climates are leading to more frequent and severe heat waves, potentially threatening plant populations. Both acclimation to stress and selection for heat‐escape or heat‐resistance phenotypes occur during heat waves. However, plastic responses and selection do not necessarily interact cohesively—even producing trait responses ...
Lana F. Gaspard   +4 more
wiley   +1 more source

Enhancing Natura 2000 habitat monitoring: A framework for biodiversity conservation assessment

open access: yesEcological Indicators
Habitat monitoring and conservation assessment have gained importance in the EU, especially since the adoption of the Habitats Directive and the creation of the Natura 2000 network.
Emiliano Agrillo   +15 more
doaj   +1 more source

CAFF Habitat Conservation Report No.9 - Gaps in Habitat Protection in the Russian Arctic [PDF]

open access: yes, 2000
Arctic Council's CAFF Working Group's Habitat Conservation Report No.9 - Gaps in Habitat Protection in the Russian ...
Arctic Council , Conservation of Arctic Flora and Fauna Working Group
core  

Linking community structure and climate vulnerability in desert plant assemblages of southern California

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Desert plant assemblages in southern California provide an opportunity to link patterns of community structure with climate‐driven vulnerability in a rapidly changing environment. California sustains an exceptionally diverse flora of approximately 4300 plant species, with 31% identified as endemic.
Hector Zumbado‐Ulate   +4 more
wiley   +1 more source

Taxonomic reassessment of fossil Sequoia and Protosequoia from the Upper Miocene of Central Honshu, Japan, with implications for leaf morphological variation in extant S. sempervirens

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Since its emergence in the Mesozoic, Sequoia (Cupressaceae) has been considered to possess conserved leaf morphology. However, recent studies have shown that the leaves of extant S. sempervirens become smaller, with a scale form, with increasing tree height.
Shun Ikeda, Arata Momohara
wiley   +1 more source

Applying tradable permits to biodiversity conservation: A conceptual analysis of trading rules [PDF]

open access: yes
Tradable permits have already been applied in many areas of environmental policy and may be a possible response to increasing calls for flexible conservation instruments which are able to successfully conserve biodiversity while allowing for economic ...
Wissel, Silvia, Wätzold, Frank
core  

A case of budding speciation in the California Floristic Province and infraspecific divergence in Abronia villosa

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Budding speciation occurs when peripheral populations adapt to local ecological conditions and “bud” off from a widespread progenitor species. Traditionally regarded as rare because of its sympatric and parapatric nature, budding speciation is largely understudied.
Eli J. Allen   +3 more
wiley   +1 more source

An agent-based model of jaguar movement through conservation corridors [PDF]

open access: yes, 2011
Wildlife corridors mitigate against habitat fragmentation by connecting otherwise isolated regions, bringing well established benefits to conservation both in principle and practice.
Doncaster, C. Patrick   +2 more
core  

Embedding Chemistry and Pharmacy Into Sustainability

open access: yesAngewandte Chemie International Edition, EarlyView.
Chemistry and pharmacy provide products and processes that are indispensable for our high living standard. To understand their relationship with sustainability is important to allow them to contribute to sustainability in a sustainable manner. An integrated overview of green, circular, and sustainable chemistry and pharmacy is given and how they have t
Klaus Kümmerer
wiley   +1 more source

The density and diversity of birds on farmland in West Africa [PDF]

open access: yes, 2008
The area of land farmed in Africa is predicted to double by the year 2050 yet very few African studies have investigated the impact of different farming intensities and regimes on bird communities. This study examined avian species richness and diversity
Hulme, Mark F.
core  

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