Results 111 to 120 of about 8,301,898 (327)

Spatial Distribution of Acromyrmex balzani (Emery) (Hymenoptera: Formicidae: Attini) Nests Using Two Sampling Methods

Sociobiology, 2013
The spatial distribution (SD) of organisms is a key parameter in studies of population ecology. Among the methods to describe the SD of sessile organisms, sampling by way of plots and transects are widely used.
Leandro Sousa-Souto, Arleu Barbosa Viana Junior, Eduardo Silva Nascimento   +2 more
doaj   +1 more source

The Windermere perch and pike project: an historical review [PDF]

, 2001
This paper is an attempt to set the background, provide a brief history, review some of the Windermere perch and pike project's scientific achievements, note current developments and hopes for the future, and comment on some aspects of such long-term ...
Le Cren, David
core  

Multicohort Validation of Gut Microbiome Signatures for Cholangiocarcinoma Diagnosis and Functional Characterization of Bifidobacterium Pseudocatenulatum

Advanced Science, EarlyView.
This study analyzes gut bacteria in cholangiocarcinoma patients, revealing distinct microbial signatures that enable accurate disease detection. Species‐based diagnostic models achieved over 98% accuracy in identifying cholangiocarcinoma and distinguished it from other liver diseases. The research demonstrates that specific beneficial bacteria suppress
Benchen Rao, Jianwen Jiang, Ruiqing Zhang, Dongya Zhang, Chenchen Zhang, Ang Li, Haifeng Lu, Hua Zhang, Lin Zhou, Wenzhi Guo, Peihao Wen, Jianfeng Xue, Jie Pan, Tuerganaili Aji, Zhou Lan, Xianzhi Jiang, Shusen Zheng, Zujiang Yu, Zhigang Ren   +18 more
wiley   +1 more source

Ethnobotanical and ethnoecological study of Butia catarinensis Noblick & Lorenzi: contributions to the conservation of an endangered area in southern Brazil

Acta Botânica Brasílica, 2013
Butia catarinensis Noblick & Lorenzi is a small palm (approximately 2 m high when full-grown) endemic to the southern coast of Brazil. Local farmers use the fruit and pulp for various purposes, and this extractive activity complements their income.
Leonardo Kumagai, Natalia Hanazaki
doaj  

Evidence that the conservation reserve program slowed population declines of pheasants on a changing landscape in Nebraska, USA

Wildlife Society Bulletin, 2015
Nebraska's agricultural landscape underwent dramatic changes during the last half of the 20th century. Since 1986, the Conservation Reserve Program (CRP) has led to an increase in grassland cover, but pheasant (Phasianus colchicus) populations have been ...
Tim L. Hiller, J. Scott Taylor, Jeffrey J. Lusk, Larkin A. Powell, Andrew J. Tyre   +4 more
doaj   +1 more source

Survival as a success in the face of a scarcity of resources [PDF]

, 2002
From institutional, resource dependence and organizational ecology perspectives, there are two initial requirements for organizational survival: 1) there are sufficient resources in the niche, and 2) the organization can obtain these resources.
Cano Rodríguez, Manuel, Núñez-Nickel, Manuel   +1 more
core   +1 more source

Simulated ecology-driven sympatric speciation

, 2001
We introduce a multi-locus genetically acquired phenotype, submitted to mutations and with selective value, in an age-structured model for biological aging.
A. Pekalski, C. A. Tauber, D. Lack, G. A. de Medeiros, I. Mróz, J. Maynard Smith, J. Roughgarden, J. Roughgarden, J. S. Sá Martins, J. S. Sá Martins, P. R. Grant, P. R. Grant, P. T. Boag, P. T. Boag, S. Moss de Oliveira, S. Moss de Oliveira, T. J. P. Penna, U. Dieckmann   +17 more
core   +1 more source

Gut Lactate Boosts Ruminococcus via Histone Lactylation to Mediate Time‐Restricted Feeding Protection in Crohn's Disease

Advanced Science, EarlyView.
TRF enriches Ruminococcus, a bacterial genus producing SCFAs, and activates the epithelial HIF‐1α signaling pathway. This mechanism protects the colonic mucosa from inflammatory insults in colitis models. Mechanistically, gut lactate production during starvation and refeeding mediates H4K12la, which increases SLC9A3 expression and creates an acidic gut
Linwen Huang, Huishi Tan, Senhui Weng, Yuntao Liu, Lingxu Song, Shaoyu Cheng, Zelong Lin, Jiawei Chen, Fei Tan, Jun Wang, Jinke Huang, Linkun Cai, Jiwei Chai, Cailing Zhong, Yanqiang Shi, Wendi Zhang, Haiyan Zhang, Chongyang Huang   +17 more
wiley   +1 more source

Diversity of Pharmaceuticals Enhances Antibiotic Resistance in the Invertebrate Gut via Biofilm‐Mediated Mechanisms

Advanced Science, EarlyView.
Pharmaceutical diversity acts as an independent driver of antibiotic resistance in soil invertebrates. While bulk soil remains unaffected, the collembolan gut microbiome exhibits significant resistance gene enrichment under complex chemical exposure and diurnal warming.
Yi‐Fei Wang, Ya‐Ning Wang, Da Lin, Jia‐Yang Xu, Feng‐Yuan Qi, Hui‐Ling Cui, Hui‐Jie Lu, Min Qiao, Edward Topp, Dong Zhu, Matthias C. Rillig, Yong‐Guan Zhu   +11 more
wiley   +1 more source

Reservoir population ecology, viral evolution and the risk of emerging infectious disease. [PDF]

Proc Biol Sci, 2022
Nuismer SL, Basinski AJ, Schreiner C, Whitlock A, Remien CH.   +4 more
europepmc   +1 more source