Multiple paternity and the number of offspring: A model reveals two major groups of species
Sign Up to like & getrecommendations! Published in 2021 at "BioEssays"
DOI: 10.1002/bies.202000247
Abstract: Parentage analyses via microsatellite markers have revealed multiple paternity within the broods of polytocous species of mammals, reptiles, amphibians, fishes and invertebrates. The widespread phenomenon of multiple paternity may have attending relationships with such evolutionary… read more here.
Keywords: null model; paternity number; number offspring; paternity ... See more keywords
Hypothesis‐Driven Research on Multiple Stressors: An Analytical Framework for Stressor Interactions
Sign Up to like & getrecommendations! Published in 2025 at "Ecology and Evolution"
DOI: 10.1002/ece3.71959
Abstract: ABSTRACT Identifying and characterizing stressor interactions is central to multiple stressor research. Such interactions refer to stronger (synergism) or weaker (antagonism) joint effects of co‐occurring stressors on biological entities, when compared to the predictions of… read more here.
Keywords: stressor; hypothesis driven; null model; stressor interactions ... See more keywords
Assessment of the stream invertebrate β‐diversity along an elevation gradient using a bidimensional null model analysis
Sign Up to like & getrecommendations! Published in 2022 at "Ecology and Evolution"
DOI: 10.1002/ece3.9135
Abstract: Abstract 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., species replacement) and… read more here.
Keywords: stream; elevation; diversity; distribution ... See more keywords
A null model for randomization tests of nestedness in species assemblages
Sign Up to like & getrecommendations! Published in 2017 at "Oecologia"
DOI: 10.1007/s004420000601
Abstract: Analysis of the degree of order in species assemblages in terms of nested subsets has received increased interest during the last decade. However, recently a series of papers have questioned the validity of methods employed… read more here.
Keywords: model randomization; randomization; null model; species assemblages ... See more keywords
Bounded random walks as a null model for evaluating population trends
Sign Up to like & getrecommendations! Published in 2017 at "Population Ecology"
DOI: 10.1007/s10144-017-0574-5
Abstract: Management of wildlife and protection of endangered species depend on determination of population trends. Because population changes are stochastic and autoregressive, there is reason to believe that population trends might not be properly determined by… read more here.
Keywords: null model; bounded random; series; population trends ... See more keywords
Specification tests based on MCMC output
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Econometrics"
DOI: 10.1016/j.jeconom.2018.08.001
Abstract: Two test statistics are proposed to determine model specification after a model is estimated by an MCMC method. The first test is the MCMC version of IOSA test and its asymptotic null distribution is normal.… read more here.
Keywords: null model; mcmc output; model; test ... See more keywords
A nature inspired modularity function for unsupervised learning involving spatially embedded networks
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-39180-8
Abstract: The quality of network clustering is often measured in terms of a commonly used metric known as “modularity”. Modularity compares the clusters found in a network to those present in a random graph (a “null… read more here.
Keywords: null model; spatially embedded; nature inspired; inspired modularity ... See more keywords
Phylogenetic community structure metrics and null models: a review with new methods and software
Sign Up to like & getrecommendations! Published in 2017 at "Ecography"
DOI: 10.1111/ecog.02070
Abstract: Competitive exclusion and habitat filtering influence community assembly, but ecologists and evolutionary biologists have not reached consensus on how to quantify patterns that would reveal the action of these processes. Currently, at least 22 α-diversity… read more here.
Keywords: null model; diversity; community; diversity metrics ... See more keywords
Disentangling the drivers of continental mammalian endemism
Sign Up to like & getrecommendations! Published in 2023 at "Global Change Biology"
DOI: 10.1111/gcb.16628
Abstract: Endemic species and species with small ranges are ecologically and evolutionarily distinct and are vulnerable to extinction. Determining which abiotic and biotic factors structure patterns of endemism on continents can advance our understanding of global… read more here.
Keywords: climate; endemism; mammalian endemism; topography ... See more keywords
The tangled link between β- and γ-diversity: a Narcissus effect weakens statistical inferences in null model analyses of diversity patterns
Sign Up to like & getrecommendations! Published in 2017 at "Global Ecology and Biogeography"
DOI: 10.1111/geb.12527
Abstract: Understanding the structure of and spatial variability in the species composition of ecological communities is at the heart of biogeography. In particular, there has been recent controversy about possible latitudinal trends in compositional heterogeneity across… read more here.
Keywords: null model; narcissus effect; diversity; effect ... See more keywords
Toward an Evolutionarily Appropriate Null Model: Jointly Inferring Demography and Purifying Selection
Sign Up to like & getrecommendations! Published in 2020 at "Genetics"
DOI: 10.1534/genetics.119.303002
Abstract: The relative evolutionary roles of adaptive and non-adaptive processes remain a central question in population genetics. Resolution of this debate has been difficult as an appropriate null model incorporating... The question of the relative evolutionary… read more here.
Keywords: null model; selection; appropriate null; demography ... See more keywords