Results 51 to 60 of about 47,186 (208)

Early evolutionary history of the seed

open access: yesBiological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

Allometric mixed-effects models for Dicksonia sellowiana Hook. and its contribution to biomass stocks of Araucaria forests in southern Brazil [PDF]

open access: yesAnais da Academia Brasileira de Ciências
Predicting biomass of arborescent individuals on sample plots using allometric models is an essential step in the computation of design-based forest biomass estimates.
LAIO ZIMERMANN OLIVEIRA   +3 more
doaj   +1 more source

Identification and characterization of BAHD hydroxycinnamoyltransferases in the fern Neoblechnum brasiliense. [PDF]

open access: yesPlant J
Significance Statement Nine BAHD acyltransferases have been identified and characterized in the fern Neoblechnum brasiliense transferring hydroxycinnamoyl units onto various alcohol and amine acceptor substrates. Kinetic characterization showed that shikimic and quinic acids for ester formation as well as 3‐hydroxyanthranilic acid and tryptamine for ...
Ufland M, Petersen M.
europepmc   +2 more sources

Frost and Forest Stand Effects on the Population Dynamics of Asplenium scolopendrium [PDF]

open access: yes, 2010
Our objective was to analyze which factors are critical for the dynamics of terrestrial Asplenium scolopendrium populations at the northern edge of its distribution.
Bremer, P., Jongejans, E.
core   +2 more sources

Placental crises: disruptive selection and maternal under‐investment as the foundations of mammalian placental evolution and dysfunction

open access: yesBiological Reviews, EarlyView.
ABSTRACT Among the vertebrates, mammals are notable for the dominance of live birth and placental nutrition. The structural diversity of the mammalian placenta is remarkable, despite sharing a single common ancestor and conserved physiological functions.
Davis Laundon   +5 more
wiley   +1 more source

Distribution and Community Assembly of Trees Along an Andean Elevational Gradient

open access: yesPlants, 2019
Highlighting patterns of distribution and assembly of plants involves the use of community phylogenetic analyses and complementary traditional taxonomic metrics.
Samantha J. Worthy   +7 more
doaj   +1 more source

British Bryological Society expedition to Mulanje Mountain, Malawi : 15., Lejeuneaceae, and the occurrence and frequency of foliicolous taxa [PDF]

open access: yes, 2001
Details of habitat and location are given for 64 taxa of Lejeuneaceae collected during the BBS expedition to Mulanje Mountain, Malawi in 1991, of which 47 are new to Malawi.
Wigginton, Martin J.
core  

Classifying avian drinking behaviour: ecological insights and implications in a changing world

open access: yesBiological Reviews, EarlyView.
ABSTRACT Water is a fundamental currency of life, and its availability significantly influences animal behaviour, physiology and distributions. However, our knowledge around the dependence on water for drinking and the direct and indirect mechanisms driving related behaviours remains partial in the context of changing climates. Here, we review patterns
Shannon R. Conradie, Marc T. Freeman
wiley   +1 more source

Identification of the relationship between Chinese Adiantum reniforme var. sinense and Canary Adiantum reniforme [PDF]

open access: yes, 2015
© 2014 Wang et al.; licensee BioMed Central. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and ...
Chen, H-F   +8 more
core   +1 more source

The extension of the taxon cycle model to island plants: insights from the Canarian vascular flora

open access: yesBiological Reviews, EarlyView.
ABSTRACT Taxon cycle models describe eco‐evolutionary patterns of lineage colonization, diversification, and decline across archipelagos, inferring an important role for competition amongst ecologically similar taxa in driving concurrent niche changes.
José María Fernández‐Palacios   +2 more
wiley   +1 more source

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