Results 111 to 120 of about 52,051 (301)

Predicting niche overlap with model‐based ordination

Ecography
The ecological niche is a fundamental concept in ecology that can be used in order better understand species relationships. The overlap in species niches provides a measure of the likelihood for species to co‐occur. Most approaches that quantify niche overlap have been based on distance and similarity indices, for pairwise combinations of species.
Bert van der Veen, Robert B. O'Hara, Francis K.C. Hui, Knut A. Hovstad   +3 more
openaire   +2 more sources

Multi‐Enzyme Mimetic Molybdenum Nitride Nanozymes Reshape Subgingival Microenvironment for Synergistic Periodontitis Therapy via ROS Regulation and Microbiome Remodeling

Advanced Science, EarlyView.
ABSTRACT Periodontitis, a chronic inflammatory disease initiated and sustained by plaque microorganisms and host immune response, remains an intractable oral disease and a leading cause of tooth loss worldwide. Traditional mechanical debridement and adjunctive antibiotic or antiseptic therapy often shows limited efficacy due to the complex anatomical ...
Weiyu Zhang, Zhongwei Yang, Yunfan Zhang, Longwei Wang, Xiaoyu Zhang, Jiahui Mao, Yizhi Dai, Yifan Yuan, Mingge Wang, Xin Yang, Xin Yu, Jing Liu, Chunying Chen   +12 more
wiley   +1 more source

Mowing mitigates the negative impacts of long-term warming on community composition and niche characteristics of alpine meadow on the Tibetan Plateau

Global Ecology and Conservation
Climate warming and human disturbance are supposed to have significantly impacted the alpine grasslands. However, it is still unclear how human activity affects the community composition and niche characteristics in response to warming.
Li Ma, Zhonghua Zhang, Hongye Su, Ruimin Qin, Jingjing Wei, Honglin Li, Zhengchen Shi, Shan Li, Xue Hu, Haze Adi, Fang Yuan, Bingrong Zhou, Xinqing Shao, Huakun Zhou   +13 more
doaj   +1 more source

Measurement of Niche Breadth and Overlap: The Colwell‐Futuyma Method

Ecology, 1973
The Colwell—Futuyma niche metrics are examined by means of data on microgeographic distribution of 25 species of drosophilid flies. Niche metrics based on a variety of weighting factors (circular, non—circular, absolute, and relative) are highly positively correlated. Unweighted metrics are highly correlated with all weighted metrics. The niche breadth
Sabath, M.D., Jones, J.M.
openaire   +2 more sources

A 3D Human Bone and Bone Marrow‐on‐a‐Chip Model for In Vitro Bone Remodeling and Immune Cell Maintenance

Advanced Science, EarlyView.
This study presents a human Bone (and Bone Marrow)‐on‐a‐Chip model based on native human bone scaffolds and autologous cells. Dynamic perfusion and sequential cell seeding replicate the physiological bone remodeling process in vitro, enabling the long‐term culture of functional, mature bone marrow immune subpopulations.
Nina Stelzer, Melanie‐Jasmin Ort, Kristian Händler, Emely Bortel, Ioanna Maria Dimitriou, Martin Textor, Georg N. Duda, Janosch Schoon, Uwe Marx, Uwe Kornak, Annika Winter, Bernhard Hesse, Stefanie Donner, Sebastian Hardt, Oliver Klein, Simon Reinke, Malte Spielmann, Sven Geißler   +17 more
wiley   +1 more source

The glacial niche overlap statistics – Schoener's D statistic. [PDF]

, 2014
The glacial niche overlap statistics – Schoener's D statistic.
Dariusz L. Szlachetko (571846), Agnieszka K. Kowalkowska (571849), Piotr Rutkowski (571850), Marcin Górniak (571847), Joanna Mytnik-Ejsmont (571848), Tomasz Koliński (571851), Marta Kolanowska (471074)   +6 more
core   +1 more source

Comparative feeding ecology of four syntopic Hypostomus species in a Brazilian southeastern river

Brazilian Journal of Biology
Though their broad distribution in most Brazilian rivers, scarce studies concerning ecological interactions on Hypostomus species are available. This study observes the diet, the trophic interactions and some morphological aspects of four syntopic ...
G. A. Villares-Junior, I. B. Cardone, R. Goitein   +2 more
doaj   +1 more source

Tumor‐Derived LAMB3 Drives Immunosuppressive LRRC15+ Fibroblast Formation During Pancreatic Ductal Adenocarcinoma Development

Advanced Science, EarlyView.
A single‐cell atlas of pancreatic ductal adenocarcinoma development reveals progressive ductal‐fibroblast‐immune crosstalk. Tumor‐derived LAMB3 drives the formation of immunosuppressive LRRC15+ fibroblasts through the ITGB1/FAK/MAPK/FOSL2 signaling. Glycolytic reprogramming upregulates LAMB3 and correlates with LRRC15+ fibroblast enrichment.
Xuqing Shi, Hangqi Liu, Jianru Sun, Xiaoding Liu, Xinping Jv, Longyun Chen, Yuhan Zhang, Hui Zhang, Xudong Xing, Ruiyu Li, Xinyi Ke, Jun Wang, Xianglin Yin, Bohan Liu, Qixian Liu, Yuan Wang, Junliang Lu, Shiyi Liu, Junyi Pang, Yumeng Cai, Menghua Dai, Fan Bai, Huanwen Wu, Zhiyong Liang   +23 more
wiley   +1 more source

Niche overlap estimate (D statistic) between species pairs. [PDF]

, 2014
Niche overlap estimate (D statistic) between species pairs.
Nag Chetan (519064), Gururaja Kotambylu Vasudeva (519066), Karanth K. Praveen (519065)   +2 more
core   +1 more source

Transcription Factor Promiscuity Drives Regulatory Rewiring and Evolvability in Gene Networks in Bacteria

Advanced Science, EarlyView.
When a master transcription factor (TF) is lost, bacteria can rapidly rewire gene regulatory networks by co‐opting related regulators. Using experimental evolution in Pseudomonas fluorescens, we show that TF promiscuity (low‐level, non‐cognate binding) provides the raw material for rewiring. Successful co‐option follows a predictable hierarchy governed
Tiffany B. Taylor, Alan M. Rice
wiley   +1 more source