Results 61 to 70 of about 1,722,879 (239)

A seed-diffusion model for tropical tree diversity patterns

, 2012
Diversity patterns of tree species in a tropical forest community are approached by a simple lattice model and investigated by Monte Carlo simulations using a backtracking method.
A. Derzsi, Alonso, Bell, Chave, Chave, Chave, Chu, Condit, Dewdney, Durett, Economo, Enquist, Etienne, Etienne, Etienne, Fisher, Gevin, Gravel, Horvát, Hubbell, Hubbell, Hubbell, Hubbell, Hutchinson, Kimura, Leibold, Levins, MacArthur, MacArthur, McGill, Munoz, O’Dwyer, Pigolotti, Pigolotti, Preston, Preston, Rosindell, Rosindell, Rosindell, Silvertown, Tilman, Volkov, Volkov, Z. Néda, Zillio   +44 more
core   +1 more source

"Intraspecific aggregation decreases local species diversity of arthropods" [PDF]

, 2003
Keith S. Summerville ia a professor of Environmental Science in the Department of Environmental Science and Policy at Drake University. He can be contacted at keith.summerville@drake.eduAbstract. The aggregation model of species coexistence predicts that
Crist, Thomas O., Summerville, Keith S., Veech, Joseph A.   +2 more
core   +2 more sources

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

The effect of insect herbivory on the growth and fitness of introduced Verbascum thapsus L. [PDF]

, 2013
A majority of the plant species that are introduced into new ranges either do not become established, or become naturalized yet do not attain high densities and are thus considered ecologically and economically unproblematic. The factors that limit these
Alba, Christina, Hufbauer, Ruth A., Norton, Andrew P., Wilbur, Hannah D.   +3 more
core   +2 more sources

Dihydroorotate dehydrogenase (DHODH) regulates trophoblast syncytialization through organelle stress–induced cellular senescence

FEBS Open Bio, EarlyView.
The inhibition of mitochondrial dihydroorotate dehydrogenase (DHODH) impairs syncytialization and induces cellular senescence via mitochondrial and endoplasmic reticulum stress in human trophoblast stem cells, elevating sFlt1/PlGF levels, a hallmark of placental dysfunction in hypertensive disorders of pregnancy.
Kanoko Yoshida, Kazuya Kusama, Ayaka Horiuchi, Yu Kawaguchi, Atsuya Tsuru, Mikihiro Yoshie, Kazuhiro Tamura   +6 more
wiley   +1 more source

Canopy-Mediated Shifts in Grassland Diversity and Heterogeneity: A Power Law Approach from China’s Loess Plateau

Plants
This study investigates the spatial heterogeneity and species diversity of grassland vegetation in the agro-pastoral ecotone of China’s Loess Plateau, integrating Taylor’s power law model with the minimum area concept to address scale-dependent ...
Lili Qian, Cong Wu, Sipu Jing, Li Meng, Shuo Liu, Xiangyang Hou, Wenjie Lu, Xiang Zhao   +7 more
doaj   +1 more source

Does shade improve light interception efficiency? A comparison among seedlings from shade-tolerant and -intolerant temperate deciduous tree species [PDF]

, 2006
• Here, we tested two hypotheses: shading increases light interception efficiency (LIE) of broadleaved tree seedlings, and shade-tolerant species exhibit larger LIEs than do shade-intolerant ones.
Adam B, Adam B, Baker FS, Boudon F, Bretz F, Canham CD, Carter GA, Christian Messier, Claveau Y, Delagrange S, Den Dulk JA, Erwin Dreyer, Farque L, Fleck S, Forcier LK, Frazer GW, Galvez D, Halle F, Hervé Sinoquet, Messier C, Muraoka H, Norman JM, Oker-Blom P, Phattaralerphong J, Pierre Montpied, R Development Core Team, Sonohat G, Sterck FJ, Sylvain Delagrange, Valladares F   +29 more
core   +3 more sources

Meta‐analysis fails to show any correlation between protein abundance and ubiquitination changes

FEBS Open Bio, EarlyView.
We analyzed over 50 published proteomics datasets to explore the relationship between protein levels and ubiquitination changes across multiple experimental conditions and biological systems. Although ubiquitination is often associated with protein degradation, our analysis shows that changes in ubiquitination do not globally correlate with changes in ...
Nerea Osinalde, Unai Alduntzin, Gorka Prieto, Ugo Mayor   +3 more
wiley   +1 more source

Power-law scaling in intratumoral microbiota of colorectal cancer

Gut Pathogens
It has recently been proposed that the study of microbial dynamics in humans may gain insights from island biogeographical theory. Here, we test whether the diversity of the intratumoral microbiota of colorectal cancer tumors (CRC) follows a power law ...
Nikolas Dovrolis, Maria Gazouli, François Rigal, Robert J. Whittaker, Thomas J. Matthews, Konstantinos Georgiou, George Theodoropoulos, Kostas A. Triantis   +7 more
doaj   +1 more source

The Main Factors Affecting the Minimum Sampling Area Determination Method: Based on Research of the Shrub Layer in Island Pinus massoniana Forests

Biology
Determining the minimum sampling area is crucial for accurate and cost-effective biodiversity surveys. This study identifies the main factors (e.g., species richness and evenness) influencing the inflection point method and precision method, aiming to ...
Jihong Xiao, Qingyan Wen, Zhifei Zhong, Yanqiu Xie, Yingxue Wang, Xing Cai, Yuchen Lin, Feifan Weng, Guochang Ding, Chuanyuan Deng   +9 more
doaj   +1 more source