Pollination of New CaledonianWinteraceae: Opportunistic shifts or parallel radiation with their pollinators?

1990 ◽  
Vol 173 (3-4) ◽  
pp. 143-157 ◽  
Author(s):  
O. Pellmyr ◽  
L. B. Thien ◽  
G. Bergstr�m ◽  
I. Groth
Keyword(s):  
Parallel Radiation

Parallel radiation dose computations with GENOCOP III on GPUs

2020 ◽  
Vol 77 (1) ◽  
pp. 66-76
Author(s):  
J. J. Moreno ◽  
J. Miroforidis ◽  
E. Filatovas ◽  
I. Kaliszewski ◽  
E. M. Garzón
Keyword(s):  
Radiation Dose ◽  
Parallel Radiation

G223 Heating of Pipe Array by Parallel Radiation Simulating Solar Light

2007 ◽  
Vol 2007 (0) ◽  
pp. 411-412
Author(s):  
Hiroshi Hasuike ◽  
Takahiro Goto ◽  
Yutaka Tamaura ◽  
Yoshio Yoshizawa
Keyword(s):  
Solar Light ◽  
Parallel Radiation

Parallel Radiation among the Geomyoid Rodents

1937 ◽  
Vol 18 (2) ◽  
pp. 171 ◽  
Author(s):  
Albert Elmer Wood
Keyword(s):  
Parallel Radiation

Persistent inter- and intraspecific gene exchange within a parallel radiation of caterpillar hunter beetles (Calosomasp.) from the Galápagos

2015 ◽  
Vol 24 (12) ◽  
pp. 3107-3121 ◽  
Author(s):  
Frederik Hendrickx ◽  
Thierry Backeljau ◽  
Wouter Dekoninck ◽  
Steven M. Van Belleghem ◽  
Viki Vandomme ◽  
...  
Keyword(s):  
Gene Exchange ◽  
Parallel Radiation

scholarly journals XII. On the scattering and absorption of light in gaseous media, with applications to the intensity of sky radiation

1913 ◽  
Vol 212 (484-496) ◽  
pp. 375-433 ◽  
Keyword(s):  
Scattered Radiation ◽  
Gaseous Medium ◽  
Wave Length ◽  
Incident Radiation ◽  
Continuous Change ◽  
Small Particles ◽  
Absorption Of Light ◽  
Original Direction ◽  
Gaseous Media ◽  
Parallel Radiation

1. On the Scattering of Parallel Radiation by Molecules and Small Particles . The effect of small particles in scattering incident radiation was first worked out by Lord Rayleigh. When a stream of parallel radiation falls on a particle whose dimensions are small compared with the wave-length the resulting secondary disturbance travels in all directions at the expense of the intensity in the original direction. In a later paper Lord Rayleigh gave reasons for believing that the molecules of a gas are themselves able to scatter radiation in this way. In a gaseous medium it is legitimate to sum up the intensities of the scattered radiation due to each molecule in an element of volume without a consideration of phase-difference in consequence of the continuous change in the relative positions of a molecule in a gas. The same remark applies to the case where the scattering is due to small particles of dust since these partake, to some extent at least, of the molecular agitation of the gas in which they are held in suspension.

A phylogenetic study of subgenus Polypompholyx: a parallel radiation of Utricularia (Lentibulariaceae) throughout Australasia

2010 ◽  
Vol 23 (3) ◽  
pp. 152 ◽  
Author(s):  
Markus S. Reut ◽  
Richard W. Jobson
Keyword(s):  
Dna Sequences ◽  
Cladistic Analysis ◽  
Morphological Characters ◽  
Floral Colour ◽  
Phylogenetic Study ◽  
Strict Consensus Tree ◽  
Morphological Heterogeneity ◽  
Sexual Mimicry ◽  
Jackknife Support ◽  
Parallel Radiation

Phylogenetic relationships among 26 of the 37 recognised taxa of Utricularia subgenus Polypompholyx sensu Müller & Borsch were assessed by cladistic analysis of DNA sequences from the plastid rps16 intron. We also examined the placement of the recently described U. simmonsii (sect. Minutae), which was reported to share some morphological characters with subgenus Polypompholyx. We found strong jackknife support for a monophyletic subgenus Polypompholyx lineage; however, our strict consensus tree shows an unresolved relationship between the sections Polypompholyx and Pleiochasia. Within the section Pleiochasia, we found two supported clades, generally differing in a more northern or southern distribution. Despite high levels of morphological heterogeneity and convergence, we found some clade-specific character homogeneity within these two clades, particularly that of growth and bladder-trap form, and floral structure. Bladder-trap form corresponds most strongly with terrestrial v. aquatic habits. The evolution of filiform corolla appendages corresponds with floral colour, and is possibly associated with sexual mimicry, with those of the upper corolla arising twice independently. Furthermore, we found that U. monanthos and U. novae-zelandiae remain synonyms of U. dichotoma, and that U. simmonsii is not included in the subgenus Polypompholyx, but instead is allied with sections Stomoisia and Enskide of subgenus Bivalvaria.

scholarly journals Blindsnake evolutionary tree reveals long history on Gondwana

2010 ◽  
Vol 6 (4) ◽  
pp. 558-561 ◽  
Author(s):  
Nicolas Vidal ◽  
Julie Marin ◽  
Marina Morini ◽  
Steve Donnellan ◽  
William R. Branch ◽  
...  
Keyword(s):  
Evolutionary Tree ◽  
Research Knowledge ◽  
West Gondwana ◽  
Vicariant Event ◽  
Molecular Dataset ◽  
East And West ◽  
Dispersal Events ◽  
Parallel Radiation

Worm-like snakes (scolecophidians) are small, burrowing species with reduced vision. Although largely neglected in vertebrate research, knowledge of their biogeographical history is crucial for evaluating hypotheses of snake origins. We constructed a molecular dataset for scolecophidians with detailed sampling within the largest family, Typhlopidae (blindsnakes). Our results demonstrate that scolecophidians have had a long Gondwanan history, and that their initial diversification followed a vicariant event: the separation of East and West Gondwana approximately 150 Ma. We find that the earliest blindsnake lineages, representing two new families described here, were distributed on the palaeolandmass of India+Madagascar named here as Indigascar. Their later evolution out of Indigascar involved vicariance and several oceanic dispersal events, including a westward transatlantic one, unexpected for burrowing animals. The exceptional diversification of scolecophidians in the Cenozoic was probably linked to a parallel radiation of prey (ants and termites) as well as increased isolation of populations facilitated by their fossorial habits.

Heat flux contours on a plane for parallel radiation specularly reflected from a cone, a hemisphere and a paraboloid

1973 ◽  
Vol 16 (2) ◽  
pp. 281-291 ◽  
Author(s):  
David L. Shealy ◽  
Donald G. Burkhard
Keyword(s):  
Heat Flux ◽  
Parallel Radiation
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