Reproductive biology of "Helianthemum apennium" (L.) Mill. and "H. caput-felis" Boiss. (Cistaceae) from Mallorca (Balearic Island, Spain) [PDF]
, 1997 El estudio de la biología reproductiva de poblaciones naturales de Helianthemum apenninum y H. caput-felis en Mallorca ha demostrado que son básicamente entomófilos, aunque también producen numerosos frutos por auto-polinización. Las flores de H.
Gil Sánchez, Luis +2 more
core +1 more source
PEK14: A Kinesin‐4 Necessary for Male‐Derived Fertility in Arabidopsis thaliana
Cytoskeleton, EarlyView.ABSTRACT Of the 61 kinesins annotated in Arabidopsis thaliana, many are still without assigned function. Here, we have screened an insertional mutant library of Arabidopsis pollen‐expressed kinesins for fertility defects. Insertional mutants for three kinesins showed a significant reduction in seed set.
Isabella N. Mendes +6 more
wiley +1 more source
Ice Cores from the St. Elias Mountains, Yukon, Canada: Their Significance for Climate, Atmospheric Composition and Volcanism in the North Pacific Region [PDF]
, 2014 A major achievement in research supported by the Kluane Lake Research Station was the recovery, in 2001 –02, of a suite of cores from the icefields of the central St.
Bourgeois, Jocelyne +12 more
core +4 more sources
Making Two out of One: Kinesin Motors Driving Plant Cell Division
Cytoskeleton, EarlyView.ABSTRACT The Kinesin superfamily of microtubule dependent motors is present in all eukaryotes. Not all of the subfamilies are represented in all kingdoms, and the ones that are do not always show conserved functions. Tight control of the cytoskeleton is essential for proper progression and completion of mitosis and cytokinesis, and key functions are ...
Choy Kriechbaum, Sabine Müller
wiley +1 more source
A summary of terminology used in tephra-related studies [PDF]
, 2001 The word ‘tephra’, derived from a Greek word for ash, is a collective term for all the unconsolidated, primary pyroclastic products of a volcanic eruption.
Hunt, John B., Lowe, David J.
core +1 more source
Flower Associations of Mimetic Syrphidae (Diptera) in Northern Michigan [PDF]
, 2017 Collections of specialized (high fidelity) mimetic Syrphidae in northern Michigan revealed 19 species associated with 18 flowering plants. Almost 97% of these syrphids were taken on seven plant species or species groups, all with conspicuous white or ...
Waldbauer, G. P
core +2 more sources
Mapping the US Bridgebuilding Field: Situating Organizations in the Ecosystem of Social Change
Conflict Resolution Quarterly, EarlyView.ABSTRACT This article explores the ecosystem of bridge‐building initiatives in the United States. Drawing on an original database of 223 organizations, interviews with 7 staff across 6 organizations, and a literature review related to bridge‐building, polarization, and collective action, we first describe the range of existing initiatives and their ...
Gabrielle Mathews, Karen Ross
wiley +1 more source
Ecography, EarlyView.Risk assessments of invasive species present one of the most challenging applications of species distribution models (SDMs) due to the fundamental issues of distributional disequilibrium, niche changes, and truncation. Invasive species often occupy only a fraction of their potential environmental and geographic ranges, as their spatiotemporal dynamics ...
Erola Fenollosa +4 more
wiley +1 more source
Landscape reconstructions for Europe during the late Last Glacial (60–20 ka BP): a pollen-based REVEALS approach [PDF]
Earth System Science DataVegetation change during the Last Glacial period in Europe plays a crucial role in better understanding the ecosystem dynamics response to abrupt climate change. Yet, most quantitative reconstructions of land-cover primarily focus on the Holocene and aim
O. A. Kern, A. Maier, N. Vercauteren
doaj +1 more source
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