Category Archives: natural history

For these birds, isolation-by-distance is (almost) all in the family

Isolation by distance is one of the most fundamental processes of molecular ecology. In any finite population, the frequency of a genetic variant will change from generation to generation due to random sampling effects, which we call genetic drift. In … Continue reading

Posted in natural history, pedigree, population genetics | Tagged | 1 Comment

Artificial connectivity … have we overlooked the native range?

Invasive species are problematic throughout the world’s ecosystems, down even to their very name which incites heated debates. Every month, studies are published that describe the genetic structure and gene flow of non-native species in their introduced ranges. Often, these … Continue reading

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Humans, selection, evolution and ecological timescales … a potent cocktail

It’s been awhile since I last was able to write for TME. But, finally, I’ve stolen away some time to write about a recent study in Ecology Letters that I couldn’t put down once I started reading it. Yes, it’s about mating … Continue reading

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At the molecular level, there’s more than one way to fly higher

Parallel adaptation is coming into its own lately, as we’re increasingly able to examine the molecular changes underlying similar adaptations in distantly related species. A fundamental prediction of evolutionary theory is that species coping with the same environment should converge … Continue reading

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The tarsier’s nuclear genome comes with a bonus mitochodrial genome

This week Nature Communications published a paper presenting a new genome assembly for Tarsius syrichta, the Phillipine tarsier. Tarsiers are the subject of one of the best of Ze Frank’s “True Facts” videos, and they occupy an interesting place in … Continue reading

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Building bridges across the chaos

In a new review, Eldon and co-authors (in press) attempt to build a bridge across the chaos of genetic patchiness in the sea. They i) describe the patterns characterized as chaotic genetic patchiness, ii) discuss the potential causes of these patterns and … Continue reading

Posted in evolution, genomics, mutation, natural history, next generation sequencing, phylogenetics, phylogeography, population genetics, selection | Tagged , , , | Leave a comment

Is equilibrium out of reach or are there some sneaky bouts of sex?

Reproductive systems impact the evolution of genetic diversity at the population level. Yet, we don’t know a lot about organisms that are partially clonal, despite the large component of biodiversity that dabbles in asexual reproduction to varying degrees. Clonal dynamics are … Continue reading

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