Results 71 to 80 of about 7,139,959 (205)

Sensitivity of metrics of phylogenetic structure to scale, source of data and species pool of hummingbird assemblages along elevational gradients.

PLoS ONE, 2012
Patterns of phylogenetic structure of assemblages are increasingly used to gain insight into the ecological and evolutionary processes involved in the assembly of co-occurring species.
Sebastián González-Caro, Juan L Parra, Catherine H Graham, Jimmy A McGuire, Carlos Daniel Cadena   +4 more
doaj   +1 more source

The Interplay between Environmental Filtering and Spatial Processes in Structuring Communities: The Case of Neotropical Snake Communities. [PDF]

PLoS ONE, 2015
Both habitat filters and spatial processes can influence community structure. Space alone affects species immigration from the regional species pool, whereas habitat filters affect species distribution and inter-specific interactions. This study aimed to
Hamanda Cavalheri, Camila Both, Marcio Martins   +2 more
doaj   +1 more source

Phylogenetic relationships of African Caecilians (Amphibia: Gymnophiona): insights from mitochondrial rRNA gene sequences [PDF]

, 2003
Africa (excluding the Seychelles) has a diverse caecilian fauna, including the endemic family Scolecomorphidae and six endemic genera of the more cosmopolitan Caeciliidae.
Mark Wilkinson, David J. Gower, Jonathan A. Sheps, Sheps, Jonathan A, Bernard L. Cohen, Loader, Simon P, Wilkinson, Mark, Wilkinson, M., Loader, S.P., Gower, David J, Simon P. Loader, Gower, D.J., Cohen, Bernard L, Cohen, B.L., Sheps, J.A.   +14 more
core   +1 more source

Chemical Screening Identifies Danofloxacin as a Self‐Renewal Agonist of Embryonic Stem Cells through Alleviation of HDAC1‐Mediated Deacetylation of Tert and Prdm10

Advanced Science, EarlyView.
This study identified Danofloxacin as a novel supporter of the maintenance of mouse embryonic stem cell (ESC) pluripotency. It functions partially by inhibiting HDAC1, which increases specific histone acetylation marks and activates key genes like Tert and Prdm10.
Yan Zhang, Junxiang Ji, Baoxing Dong, Zhenhua Zhu, Xucheng Lv, Peng Chen, Wenqiang Liu, Min Zhou, Shou‐Dong Ye   +8 more
wiley   +1 more source

The Elevational Distribution Patterns of Plant Diversity and Phylogenetic Structure Vary Geographically Across Eight Subtropical Mountains

Ecology and Evolution
Mountains have been recognized as biodiversity hotspots and possess strong elevational gradients. Whether these gradients exhibit similar characteristics in the multidimensional diversity patterns across different mountain ranges is a subject of inquiry.
Kuiling Zu, Fusheng Chen, Chao Huang, Yuanqiu Liu, Fangchao Wang, Guojin Zhu, Wensheng Bu, Xiangmin Fang, Liping Guo   +8 more
doaj   +1 more source

Canine distemper virus phylogenetic structure and ecological correlates of infection in mesocarnivores across anthropogenic land use gradients

Microbiology Spectrum
Anthropogenic land use impacts infectious diseases at the wildlife-domestic-human interface by changing host spatial distribution, behavior, density, and population dynamics.
Jonathan Wilson, Samantha Rubio, Liliana C. M. Salvador, Nicole M. Nemeth, Jillian D. Fishburn, Nicole L. Gottdenker   +5 more
doaj   +1 more source

Population structure and phylogenetic relationships of Ceutorhynchus neglectus (Coleoptera: Curculionidae)

, 2005
Ceutorhynchus neglectus Blatchley is a weevil that is native to, and widely distributed in, North America. It has life-history characteristics similar to its alien invasive congener, Ceutorhynchus obstrictus (Marsham), the cabbage seedpod weevil.
Laffin, R. D., Dosdall, L. M., Sperling, F. A. H.   +2 more
core   +1 more source

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

Advanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang, Chunhua Ren, Zhou Qin, Yimeng Cui, Bingbing Zhang, Peng Luo, Xuan Wang, Yaoqi Xie, Xin Zhang, Aifen Yan, Yang Zhang, Dingding Fan, Yang Liu, Wenjie Pan, Xiao Jiang, Lihong Yuan, Haipeng Qin, David M. Irwin, Chaoqun Hu, Yang Liu, Ting Chen   +20 more
wiley   +1 more source

A macro- and micro-evolutionary investigation of African Camponotus ants [PDF]

, 2002
Bibliography: leaves 213-233.Camponotus than the cytochrome oxidase II gene, based on almost all measures of phylogenetic utility. The primary hypothesis proposed to account for this observation is that these two mitochondrial genes are evolving under ...
Eick, Brigitte N
core   +1 more source

Phylogenetic structure of alpine steppe plant communities along a precipitation and temperature gradient on the Tibetan Plateau

Global Ecology and Conservation, 2020
Exploring plant community phylogenetic structure along precipitation and temperature gradients can facilitate the study of mechanisms governing community assembly.
Chunhui Zhang, Huakun Zhou, Zhen Ma
doaj   +1 more source