Results 101 to 110 of about 2,377,962 (255)

Speciation of European bullheads (Cottus spp.): The next problem for taxonomy of northern freshwater fishes

open access: yesJournal of Fish Biology, EarlyView.
Abstract High morphological and ecological diversity displayed by European bullheads led Freyhof et al. (2005) to describe 15 nominal species. However, the basis for declaring these nominal species is contentious due to a lack of rigorous statistical analysis of morphological variations among populations, limitations in the inferences made from ...
David S. Murray   +3 more
wiley   +1 more source

Vegetation associated with Wollemia nobilis (Araucariaceae) [PDF]

open access: yes, 2013
Wollemia nobilis Jones et al. (Wollemi Pine) is restricted to four sites growing in warm temperate rainforest typical of the canyons in the Blue Mountains and Wollemi National Parks. 88 vascular plant species were recorded from four sites.
Allen, Chris, Benson, John
core  

Towards Resolving the Complete Fern Tree of Life

open access: yesPLoS ONE, 2011
In the past two decades, molecular systematic studies have revolutionized our understanding of the evolutionary history of ferns. The availability of large molecular data sets together with efficient computer algorithms, now enables us to reconstruct evolutionary histories with previously unseen completeness. Here, the most comprehensive fern phylogeny
openaire   +5 more sources

Convergence and parallelism in the evolution of plant metabolism

open access: yesJournal of Integrative Plant Biology, EarlyView.
Similar traits in different organisms may originate from shared ancestry or evolve independently. The terminology used to define phenotypic similarity is often confusing. This review attempts to clarify the definitions and present examples from plant domestication and specialized metabolism to explain how complex traits evolve repeatedly in plants ...
Federico Scossa   +4 more
wiley   +1 more source

A molecular phylogenetic study of Deschampsia (Poaceae: Aveneae) inferred from nuclear ITS and plastid trnL sequence data: support for the recognition of Avenella and Vahlodea [PDF]

open access: yes, 2007
The circumscription and phylogeny of Deschampsia were studied for the first time by parsimony analysis of nuclear ribosomal internal transcribed spacer (ITS) and plastid trnL intron sequences.
Chiapella, Jorge Oscar
core  

Routine Dynamics at a Cardiac First‐Aid Unit: How Context, Emotions, and Identities Drive the Adaptation of Action Patterns

open access: yesJournal of Management Studies, EarlyView.
Abstract Emotions are a catalyst for actions. They are therefore important for developing an understanding of organizational routines as generative patterns of interdependent actions. To investigate how the performances and action patterns of routines are impacted by emotion changes brought about by alterations in the context of routine enactment, we ...
Emre Karali   +3 more
wiley   +1 more source

Counter‐Stigmatization in the Digital Age: The Case of the Sex Tech Award Incident

open access: yesJournal of Management Studies, EarlyView.
Abstract Scholars have shown considerable interest in how organizations manage stigma when powerful actors discredit them and their products. However, research has paid less attention to how organizations might deflect stigma back onto their stigmatizers.
Neva Bojovic   +2 more
wiley   +1 more source

A clonal legacy? Reproductive mode variation in hard‐ and soft‐bottom Gracilaria vermiculophylla populations

open access: yesJournal of Phycology, EarlyView.
Abstract The invasion of the red macroalga Gracilaria vermiculophylla provided an opportunity to investigate the influence of benthic habitats on the reproductive mode, population structure, and colonization dynamics in haploid‐diploid life cycles.
Alexis P. Oetterer   +3 more
wiley   +1 more source

Integrative taxonomy supports DNA barcoding in revealing an abundant cryptic species in the United States Coastal Plain

open access: yesJournal of Systematics and Evolution, EarlyView.
We present the most densely sampled phylogeny of Carex section Lupulinae to date (107 specimens) and describe herein a new cryptic species for science from the southern United States, which is locally abundant and found in well‐explored and densely populated areas. Combining DNA sequences with morphometric data obtained from 299 samples, we Demonstrate
Étienne Lacroix‐Carignan   +4 more
wiley   +1 more source

Automated extraction of leaf mass per area from digitized herbarium specimens

open access: yesNew Phytologist, EarlyView.
Summary The digitization of vast herbarium collections has made millions of plant specimen images freely available online, which can now be used to generate phenotypic datasets of unprecedented scope. Here, we assess the potential of computer vision tools to automate the extraction of predicted leaf mass per area (LMApred) from digitized herbarium ...
Thais Vasconcelos   +4 more
wiley   +1 more source

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