Employment Dynamics and Linkages in the Rural Economy: Insights from Senegal
status: published
Multi-faceted analysis provides little evidence for recurrent whole-genome duplications during hexapod evolution
Published in BMC Biology
BackgroundGene duplication events play an important role in the evolution and adaptation of organisms. Duplicated genes can arise through different mechanisms, including whole-genome duplications (WGDs). Recently, WGD was suggested to be an important driver of evolution, also in hexapod animals.ResultsHere, we analyzed 20 high-quality hexapod genom...
A large-scale species level dated angiosperm phylogeny for evolutionary and ecological analyses
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Phylogenies are a central and indispensable tool for evolutionary and ecological research. Even though most angiosperm families are well investigated from a phylogenetic point of view, there are far less possibilities to carry out large-scale meta-analyses at order level or higher. Here, we reconstructed a large-scale dated phylogeny including near...
Tackling rapid radiations with targeted sequencing
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In phylogenetic studies across angiosperms, at various taxonomic levels, polytomies have persisted despite efforts to resolve them by increasing sampling of taxa and loci. The large amount of genomic data now available and statistical tools to analyze them provide unprecedented power for phylogenetic inference. Targeted sequencing has emerged as a ...
Signal evolution and morphological complexity in hummingbirds (Aves: Trochilidae)
Understanding how animal signals are produced is critical for understanding their evolution because complexity and modularity in the underlying morphology can affect evolutionary patterns. Hummingbird feathers show some of the brightest and most iridescent colors in nature. These are produced by optically complex stacks of hollow, platelet-shaped o...
Determinants of non-profit commercialism : resource deficits, institutional pressures or organizational contingencies?
Resource competition is assumed to encourage commercial behaviour by publically funded non-profit organizations (NPOs). However, this widespread assumption falls short as empirical findings remain equivocal. In this study, we theorize that non-profit commercialism can indeed emerge from resource deficits but also from institutional pressures and or...
Unconventional monetary policy and bank risk taking
We analyze the presence of bank risk taking associated with unconventional monetary policy in the United States between 2008 and 2015 using corporate syndicated loan data at the bank-firm level. We measure monetary policy using the identification-through-heteroskedasticity approach with a VAR model. To identify the risk-taking channel we control fo...
Macroprudential policy and bank systemic risk
This paper investigates the effectiveness of macroprudential policy to contain the systemicrisk of European banks between 2000 and 2017. We use a new database (MaPPED) collected by experts at the ECB and national central banks with narrative informationon a broad range of instruments which are tracked over their life cycle. Using a dynamicpanel fra...
The importance of mutual understanding between external accountants and owner-managers of SMEs
This study investigates the perspective of the owner–manager of a small or medium‐sized enterprise (SME) on the importance of mutual understanding with an external accountant. Mutual understanding means that the owner–manager understands what the accountant is saying and feels understood by the accountant. The results, based on 310 completed survey...
Macroevolutionary convergence connects morphological form to ecological function in birds
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Animals have diversified into a bewildering variety of morphological forms exploiting a complex configuration of trophic niches. Their morphological diversity is widely used as an index of ecosystem function, but the extent to which animal traits predict trophic niches and associated ecological processes is unclear. Here we use the measurements of ...
