Results 91 to 100 of about 4,473,819 (314)

Determinants of species richness in the Park Grass experiment [PDF]

open access: yes, 2005
The Park Grass Experiment at Rothamsted in southeast England was started in 1856, making it the longest-running experiment in plant ecology anywhere in the world.
Crawley, M.J.   +21 more
core   +1 more source

DNA ligase LigE increases bacterial transformation with damaged extracellular DNA

open access: yesFEBS Letters, EarlyView.
The DNA ligase LigE from the naturally competent Gram‐negative bacterium Neisseria gonorrhoaea increases transformation with cut extracellular DNA. This process is ATP‐dependent and relies on the catalytic activity of LigE; it also requires that LigE contains an intact periplasmic localisation sequence, indicating that ligE functions in the periplasm ...
Jolyn Pan   +4 more
wiley   +1 more source

SPECIES: An R Package for Species Richness Estimation [PDF]

open access: yes
We introduce an R package SPECIES for species richness or diversity estimation. This package provides simple R functions to compute point and confidence interval estimates of species number from a few nonparametric and semi-parametric methods.
Ji-Ping Wang
core  

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Jackknife Estimator of Species Richness with S-PLUS [PDF]

open access: yes
An estimate of the number of species, S , usually called species richness by ecologists, in an area is one of the basic statistics used to ascertain biological diversity. Traditionally ecologists have used the number of species observed in a sample, S_0 ,
Christina D. Smith, Jeffrey S. Pontius
core  

Examining and addressing the Wallacean shortfall : species distribution modelling and biodiversity patterns of hawkmoths in the old world [PDF]

open access: yes, 2013
The geographic distribution of the species is one of the basic units of information in ecology and biogeography, yet for the vast majority of the species in the world is quite unknown. It is a phenomenon called the Wallacean shortfall.
Ballesteros-Meja, L.
core   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Sampling Effort and Parasite Species Richness

open access: yesParasitology Today, 1995
(Uploaded by Plazi for the Bat Literature Project) No abstract provided.
B A, Walther   +4 more
openaire   +2 more sources

The VHL tumor suppressor at the crossroad of protein folding, aggregation, and cancer

open access: yesMolecular Oncology, EarlyView.
Mutations, environmental stress, and chaperone dysfunction can destabilize pVHL, promoting its conversion from the native folded state into amyloid‐like assemblies. This transition may contribute to protein storage, cell dormancy, survival, and drug resistance.
Lara Abad   +2 more
wiley   +1 more source

Tree species preferences for foraging site and ways in which the preferences affect the distribution, abundance and species composition of arboreal woodland avifauna [PDF]

open access: yes, 1989
The tree species preferences by six arboreal bird species and their role in structuring the bird communities in woodland were investigated in two sites in County Durham.
Peck, Kirsi Marianne
core  

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