( 1988 ) Alpha, beta, or gamma: where does all the diversity go? Paleobiology , 14 , 221 234 .Sepkoski JJ Jr (1988) Alpha, beta, or gamma: where does all the diversity go? Paleobiology, 14, 221-234.Alpha, Beta or Gamma: Where Does All the Diversity Go?. J. J. Sepkoski. ...
The latitudinal distribution patterns of alpha, beta and gamma diversity of reptiles, amphibians and herpetofauna were analyzed using individual binary models of potential distribution for 301 species predicted by ecological modelling for a grid of 9,932 quadrants of ~25 km2 each. We arranged ...
The subfamily is comprised of 4 genera, alpha CoVs, beta CoVs, gamma CoVs, and delta CoVs (Fig. 1) CoVs are enveloped single-stranded, positive-sense RNA viruses with genomes of 25 to 32 kilobases (kb). From: Diagnostic Microbiology and Infectious Disease, 2019 ...
Species diversity may be additively partitioned within and among samples (alpha and beta diversity) from hierarchically scaled studies to assess the proportion of the total diversity (gamma) found in different habitats, landscapes, or regions. We developed a statistical approach for testing null hypoth...
Alpha (α) keratins are found in all vertebrates, while beta (β) keratins are found exclusively in reptiles and birds. We have studied the molecular evolution of these gene families in the genomes of 48 phylogenetically diverse birds and their expression in the scales and feathers of the ...
WHERE DOES ALL THE DIVERSITY GO AGAIN? A CENOZOIC PERSPECTIVE ON VARIATIONS IN ALPHA, BETA AND GAMMA DIVERSITY IN SHALLOW MARINE ENVIRONMENTSFluctuations in regional endemism and biogeographic similarity between regions appear related to the opening and closing of major oceanic gateways. Nevertheless some...
Beta多样性(β多样性),即在一个梯度上从一个生境到另一个生境所发生的种的多样性变化的速率和范围。它是研究群落之间的种多度关系。 Gamma多样性(γ多样性),即在一个地理区域内(例如一个岛屿)一系列生境中种的多样性。它通过这些生境的α多样性和生境之间的β多样性的研究范围结合起来表示。
Assessment of biodiversity in a changing world is a key issue and studies on the processes and factors influencing its history at relevant time scales are needed. In this study, we analyzed temporal trends of plant diversity using fossil pollen records f
Thesodium pumpis made up of three subunits (alpha, beta, and gamma) coded for by separate genes, which are brought together as a single functioning pump in the membrane. The alpha subunit is the largest of these and possess the Na+, K+, adenosine triphosphate (ATP), andcardiac glycoside...
SARS-CoV-2 also the translated amino acid sequence in three reading frames of the genomic termini of coronaviruses as query sequences, we searched for 5′-UTR sequences in regions other than the 5′-UTR in SARS-CoV-2 and reference strains of alpha-, beta-, gamma-, and delta-coronavirus...