Results 11 to 20 of about 15,407,870 (296)
Assessment of the stream invertebrate β‐diversity along an elevation gradient using a bidimensional null model analysis [PDF]
Ecology and Evolution, 2022 β‐Diversity, commonly defined as the compositional variation among localities that links local diversity (α‐diversity) and regional diversity (γ‐diversity), can arise from two different ecological phenomena, namely the spatial species turnover (i.e ...
Pablo Timoner +3 more
doaj +2 more sources
A null model for microbial diversification. [PDF]
Proc Natl Acad Sci U S A, 2017 Significance When evolutionary histories of closely related microorganisms are reconstructed, the lineages often cluster into visibly recognizable groups. However, we do not know if these clusters represent fundamental units of bacterial diversity, such as “species,” nor do we know the nature of evolutionary and ecological forces that
Straub TJ, Zhaxybayeva O.
europepmc +4 more sources
A Panel Test of Purchasing Power Parity Under the Null of Stationarity [PDF]
, 2001 Purchasing Power Parity (PPP) is tested using a sample of real exchange rate data for twelve European countries. Acknowledging that Augmented Dickey Fuller tests have low power, we apply a Panel test that considers the null of stationarity and corrects
Simpson, M, Hunter, J
core +6 more sources
A new dynamic null model for phylogenetic community structure. [PDF]
Ecol Lett, 2015 Pigot AL, Etienne RS.
europepmc +2 more sources
A null model for Pearson coexpression networks. [PDF]
PLoS One, 2015 Abstract Gene coexpression networks inferred by correlation from high-throughput profiling such as microarray data represent a simple but effective technique for discovering and interpreting linear gene relationships. In the last years several approach have been proposed to tackle the problem of deciding when the resulting correlation ...
Gobbi A, Jurman G.
europepmc +6 more sources
A null model for Dunbar’s circles [PDF]
Physica A: Statistical Mechanics and its Applications, 2020 7 pages, 2 figures, 1 ...
Jiménez-Martín, Manuel +3 more
openaire +2 more sources
mSystems, 2021 When facing a food shortage, generalist herbivores can respond by expanding their dietary species richness (DSR) to maximize energy collection, regardless of whether forages are preferred or not.
Guoliang Li +4 more
doaj +1 more source
Dispersal Limitation Expands the Diversity of Coral Microbiome Metacommunity in the South China Sea
Frontiers in Marine Science, 2021 The coral microbiome is one of the most complex microbial biospheres. However, the ecological processes shaping coral microbiome community assembly are not well understood. Here, we investigated the abundance, diversity, and community assembly mechanisms
Jiandong Zhang +10 more
doaj +1 more source
The role of Baccharis (Asteraceae) shrubs in the short-term restoration of Atlantic rainforest
Nature Conservation Research: Заповедная наука, 2022 The introduction of nurse species on degraded sites of Permanently Protected Areas represents a useful strategy for vegetation recovery in riparian forest.
Walisson K. Siqueira +4 more
doaj +1 more source
Spatial scale changes the relationship between beta diversity, species richness and latitude [PDF]
Royal Society Open Science, 2018 The relationship between β-diversity and latitude still remains to be a core question in ecology because of the lack of consensus between studies. One hypothesis for the lack of consensus between studies is that spatial scale changes the relationship ...
Rachakonda Sreekar +31 more
doaj +1 more source