Results 51 to 60 of about 94,886 (291)
Evolution of plant reproduction: from fusion and dispersal to interaction and communication [PDF]
, 2009 Based on the existing data concerning the evolution of the sexual reproduction, it is argued that the processes of sex differentiation and interactions play a key role in evolution. From the beginning environment and organism are unified.
Willemse, M.T.M.
core +1 more source
The spread of non‐native species
Biological Reviews, EarlyView.ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock +16 more
wiley +1 more source
Dynamic evolution of MADS-box genes in extant ferns via large-scale phylogenomic analysis
Frontiers in Plant ScienceIntroductionSeveral studies of MADS-box transcription factors in flowering plants have been conducted, and these studies have indicated that they have conserved functions in floral organ development; MIKC-type MADS-box genes has been proved to be ...
Rui Zhang +8 more
doaj +1 more source
Convenience Voting Legislation [PDF]
, 2008 The popularity of "convenience voting" measures -- vote-by-mail (VBM), liberal absentee voting and Early Vote -- has grown in recent years. A majority of states now permit voting by mail upon request, early voting, or both. This trend towards convenience
Erin Ferns
core
The impacts of biological invasions
Biological Reviews, EarlyView.ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock +42 more
wiley +1 more source
Reproduction in selected New Zealand native ferns and their suitability for revegetation : a thesis presented in partial fulfilment of the requirements for the degree of Masters of Science in Plant Biology at Massey University, Palmerston North, New Zealand [PDF]
, 2006 The potential to use New Zealand native ferns for revegetation was assessed in laboratory , nursery and field experiments. Laboratory experiments indicated that the three native fern species. Blechnum novae-zelandiae.
Denton-Giles, Matthew
core
Early evolutionary history of the seed
Biological 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
Turczaninowia, 2017 On the basis of own investigations and literature data, the similarity of structures and functions of ferns and unrelated and related species is demonstrated in connection with their adaptation to similar mode of life at the different levels of the ...
N. M. Derzhavina
doaj
El cultivo in vitro de esporas y los aspectos reproductivos del helecho anual Anogramma chaerophylla (Pteridaceae) [PDF]
, 2016 Anogramma chaerophylla pertenece a un género de helechos con esporofitos anuales y gametofitos potencialmente perennes. En el área de estudio, la Reserva Natural Punta Lara, la vegetación crece bajo estrés debido principalmente a la contaminación y la ...
Berrueta, Pedro Cayetano +5 more
core +3 more sources
Biological 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