Results 51 to 60 of about 264,721 (157)

Shallow tillage mitigates plant competition by increasing diversity and altering plant community assembly process

open access: yesFrontiers in Plant Science
IntroductionUnderstanding how human activities affect biodiversity is needed to inform systemic policies and targets for achieving sustainable development goals.
Zihao Li   +12 more
doaj   +1 more source

The macroecology of phylogenetically structured hummingbird–plant networks [PDF]

open access: yesGlobal Ecology and Biogeography, 2015
AbstractAimTo investigate the association between hummingbird–plant network structure and species richness, phylogenetic signal on species' interaction pattern, insularity and historical and current climate.LocationFifty‐four communities along a c. 10,000 km latitudinal gradient across the Americas (39° N–32° S), ranging from sea level to c. 3700 m a.s.
Martín González, Ana M.   +35 more
openaire   +3 more sources

Uganda chicken genetic resources: II. genetic diversity and population demographic history inferred from mitochondrial DNA D-loop sequences

open access: yesFrontiers in Genetics
The genetic diversity of indigenous chickens, which comprise over 80% of the chicken resources in Uganda, is largely not well-characterized for their genetic contribution.
Illyass Yussif   +2 more
doaj   +1 more source

Relationship Between Evolutionary Diversity and Aboveground Biomass During 150 Years of Natural Vegetation Regeneration in Temperate China

open access: yesEcology and Evolution
While the link between plant species diversity and biomass has been well‐studied, the impact of evolutionary diversity on community biomass across long timescales or ongoing change remains a subject of debate.
Qilong Tian   +7 more
doaj   +1 more source

Short-term evolution and dispersal patterns of fluconazole-resistance in Candida auris clade III

open access: yesmBio
The rapid increase in infections caused by the emerging fungal pathogen Candida auris is of global concern, and understanding its expansion is a priority. The phylogenetic diversity of the yeast is clustered in five major clades, among which clade III is
Irving Cancino-Muñoz   +6 more
doaj   +1 more source

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

open access: yesPLoS 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   +2 more
doaj   +1 more source

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

open access: yesPLoS 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   +4 more
doaj   +1 more source

The Pfaffian Structure of CFN Phylogenetic Networks

open access: yesJournal of Mathematical Biology
Algebraic techniques in phylogenetics have historically been successful at proving identifiability results and have also led to novel reconstruction algorithms. In this paper, we study the ideal of phylogenetic invariants of the Cavender-Farris-Neyman (CFN) model on a phylogenetic network with the goal of providing a description of the invariants which
Joseph Cummings   +4 more
openaire   +3 more sources

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

open access: yesGlobal 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

Community Phylogenetics: Assessing Tree Reconstruction Methods and the Utility of DNA Barcodes.

open access: yesPLoS ONE, 2015
Studies examining phylogenetic community structure have become increasingly prevalent, yet little attention has been given to the influence of the input phylogeny on metrics that describe phylogenetic patterns of co-occurrence.
Elizabeth E Boyle, Sarah J Adamowicz
doaj   +1 more source

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