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Papers in Ecology

Ecology papers in Environmental Sciences, X

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Other
Papers 1 - 20 of 29 in Ecology, X
  1. Molecular studies of the guenons suggest that the arboreal Cercopithecus species form a monophyletic group within the tribe Cercopithecini. However, the evolutionary relationships among these arboreal congeners remain poorly resolved. The present…
  2. In mammals, flies, and worms, sex is determined by distinctive regulatory mechanisms that cause males (XO or XY) and females (XX) to differ in their dose of X chromosomes. In each species, an essential X chromosome-wide process called dosage…
  3. A collection of subfossil wood of Pinus sylvestris (Scots pine) was exposed to X-ray densitometry. The collection of 64 samples from the southern boreal forest zone was dendrochronologically cross-dated to A.D. 673-1788. Growth characteristics were…
  4. Lipidic cubic phases provide a continuous three-dimensional bilayer matrix that facilitates nucleation and growth of bacteriorhodopsin microcrystals. The crystals diffract x-rays isotropically to 2.0 angstroms. The structure of this light-driven…
  5. To test the assumption that different earthworm species make differently-structured burrow systems that can affect water permeability, the burrow systems made by adults of three earthworms species (Lumbricus terrestris, Nicodrilus giardi and…
  6. Existem poucos estudos abordando a biodiversidade fitoplanctônica em ambientes aquáticos de planície de inundação, o que sugere a necessidade de estudos taxonômicos visando à conservação e recuperação desses ecossistemas. A Classe Xanthophyceae foi…
  7. Photosynthetic activity, pigment conversion and D1 protein degradation under high light stress has been investigated in a wild type strain and two xanthophyll cycle mutants (npq1 and npq2) of Chlamydomonas reinhardtii. Wild type cells exhibited the…
  8. The electronic transitions of lutein and neoxanthin in the major light-harvesting complex, LHCIIb, have been identified for the first time. It was found that 0-0, 0-1 and 0-2 transitions of neoxanthin were located around 486, 457 and 430 nm, whilst…
  9. Contentious issues in Night Lizard (Xantusiidae) evolution are revisited using Maximum Likelihood-based Bayesian methods and compared with results from Neighbor-Joining and Maximum Parsimony analyses. Fragments of three mitochondrial genes, the 12S…
  10. Gonadal differentiation is the first step of mammalian sex determination. The expression of the Y chromosomal testis determining factor Sry leads to up-regulation of the transcription factor Sox9 which promotes testis differentiation. Previous…
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Other

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