Results 91 to 100 of about 1,117,122 (295)

Pollen morphology of Periploca (Periplocaceae) [PDF]

, 1994
The pollen morphology of all 13 species of Periploca L. was studied. All the species are characterized by pollen grains arranged in tetrads. The arrangement of the grains may be rhomboidal, decussate or linear.
Venter, H.J.T., Verhoeven, R.L.
core   +1 more source

First Record of Tasmanian Devils in the Pilbara: Late Quaternary Subfossils From Juukan Gorge, Puutu Kunti Kurrama Country, and Insights Into Human—Faunal Relationships and Extinction

Archaeology in Oceania, EarlyView.
ABSTRACT This study presents the first unequivocal evidence for the presence of Tasmanian devils (Sarcophilus harrisii) in the Pilbara region of northwestern Australia, based on material recovered from archaeological excavations at Juukan Gorge on Puutu Kunti Kurrama and Pinikura country.
Timothy J. Churchill, Michael Slack, Elise Matheson, Liam Neill, Wanchese M. Saktura, Gavin Ashburton   +5 more
wiley   +1 more source

Morphological diversity of pollen from selected species of the genus Taraxacum, according to their ploidal level

Acta Agrobotanica, 2012
The study of the morphology of pollen concerned eight species of the genus Taraxacum. Seven types were chosen with a different number of chromosomes belonging to the section Palustria: Taraxacum paucilobum 2n = 3x = 24, T.
Jolanta Marciniuk, Anna Rudzińska-Langwald   +1 more
doaj   +1 more source

Fatty acid composition of pollen and the effect of two dominant fatty acids (linoleic and oleic) in pollen and flour diets on longevity and nutritional composition of honey bees (apis mellifera) [PDF]

, 2006
The size of the apiculture industry in Western Australia (W.A.) is one of the smallest in the nation but the production of pollen and honey per colony is the highest in Australia.
Manning, Robert
core  

Land birds on atolls: diversity, origin, and function

Biological Reviews, EarlyView.
ABSTRACT Oceanic islands are global hotspots of avian biodiversity and endemism. Their isolation and distinct environmental conditions have uniquely shaped the evolutionary trajectories of island birds, while, in turn, land bird communities have become critical providers of ecological functions to island ecosystems.
Sebastian Steibl, Alex S. Wegmann, Nick D. Holmes, Caitlin E. Andrews, Gérard Rocamora, Simon Ducatez, James C. Russell   +6 more
wiley   +1 more source

Hot and cold deserts as eco‐evolutionary arenas for understanding plant resistance to multiple abiotic stressors

Biological Reviews, EarlyView.
ABSTRACT During their long evolutionary history, land plants have evolved a range of adaptations to different abiotic stressors. These help explain present‐day diversity and distribution patterns, as well as the potential resilience of natural and agricultural systems to a changing climate. Most previous research has focused on adaptation to individual
Marc Fradera‐Soler, Natasha Barbolini, Anže Žerdoner Čalasan, Marian Schubert, Catarina Rydin, Olwen M. Grace, Aelys M. Humphreys   +6 more
wiley   +1 more source

Broussonetia papyrifera Pollen Metabolome Insights, Allergenicity, and Dispersal in Response to Climate Change Variables

Metabolites
Background/Objectives: Broussonetia papyrifera is a tree-producing allergenic pollen that grows in varied climatic conditions worldwide and causes pollen allergies in susceptible humans. This study aimed to investigate B.
Muhammad Humayun, Saadia Naseem, Richard E. Goodman, Zahid Ali   +3 more
doaj   +1 more source

Effects of post-translational modifications catalysed by pollen transglutaminase on the functional properties of microtubules and actin filaments [PDF]

, 2009
TGases (transglutaminases) are a class of calcium-dependent enzymes that catalyse the interactions between acyl acceptor glutamyl residues and amine donors, potentially making crosslinks between proteins.
Del, Duca, Cresti, M, Cai, G, Serafini-Fracassini, D, Bonner, PLR   +4 more
core  

Resolving the biome debate: ecological and palaeo‐data concur that the extensive tree‐limited grassy biomes of central and north‐western Madagascar are largely anthropogenic

Biological Reviews, EarlyView.
ABSTRACT For millennia, human activities have transformed ecosystems globally. Determining which landscapes are predominantly anthropogenic is crucial to conservation and habitat restoration. Madagascar, a critically‐threatened biodiversity hotspot, is a prominent example.
Grant S. Joseph, Sean Hixon, Colleen L. Seymour, Laurie R. Godfrey, Miguel Pedrono, Karen E. Samonds, Andrinajoro R. Rakotoarivelo, Brooke E. Crowley   +7 more
wiley   +1 more source

Flora Polínica da Reserva do Parque Estadual das Fontes do Ipiranga (São Paulo, Brasil). Família 68: Sapotaceae

Hoehnea
RESUMO No presente trabalho foram estudados seis gêneros e oito espécies de Sapotaceae (Chrysophyllum marginatum (Hook. & Arn.) Radlk., Diploon cuspidatum (Hoehne) Cronq., Ecclinusa ramiflora Mart., Micropholis cuneata Pierre ex Glaziou, Pouteria bullata
Maria Margarida da Rocha Fiuza de Melo, Angela Maria da Silva Corrêa, Maria Amélia Vitorino da Cruz-Barros   +2 more
doaj   +1 more source