The Metapopulation Bridge to Macroevolutionary Speciation Rates: A Conceptual Framework and Empirical Test DOI Creative Commons
Matheus Januario, Malin L. Pinsky, Daniel L. Rabosky

et al.

Ecology Letters, Journal Year: 2024, Volume and Issue: 28(1)

Published: Dec. 31, 2024

ABSTRACT Whether large‐scale variation in lineage diversification rates can be predicted by species properties at the population level is a key unresolved question interface between micro‐ and macroevolution. All else being equal, with biological attributes that confer metapopulation stability should persist more often timescales relevant to speciation so give rise new (incipient) forms share these traits. Here, we develop framework for testing relationship related persistence phylogenetic rates. We illustrate this conceptual approach applying it long‐term dataset on demersal fish communities from North American continental shelf region. find one index of has signal, suggesting traits are connected range‐wide demographic patterns. However, there no rate. These findings suggest decoupling ecological dynamics decadal million‐year clade dynamics, raising questions about extent which population‐level processes observable over extrapolated infer biodiversity generally.

Language: Английский

Evolutionary lability of sexual selection and its implications for speciation and macroevolution DOI
Matheus Januario, Renato C. Macedo‐Rego, Daniel L. Rabosky

et al.

The American Naturalist, Journal Year: 2024, Volume and Issue: unknown, P. 000 - 000

Published: Dec. 17, 2024

AbstractSexual selection is widely hypothesized to facilitate speciation and phenotypic evolution, but evidence from comparative studies has been mixed. Many previous have relied on proxy variables quantify the intensity of sexual selection, raising possibility that inconclusive results may reflect, in part, imperfect measurement this evolutionary process. Here, we test relationship between phylogenetic rates indices opportunity for drawn populations 82 vertebrate taxa. These provide a much more direct assessment than traits allow straightforward comparisons among distantly related clades. We find no correlation rate, result consistent across many complementary analyses. In addition, used variables-sexual dimorphism dichromatism-are not correlated with employed here. Moreover, low signal intraspecific variability species approaches range variation observed all vertebrates as whole. Our potentially reconcile major paradox biology at interface microevolution macroevolution: can be important speciation, yet lability process over deeper timescales restricts its impact broad-scale patterns biodiversity.

Language: Английский

Citations

1
Comparative approaches to understanding speciation: a case study in Xantusia lizards DOI Creative Commons

Sonal Singhal,

Hayden R. Davis, Julio A. Lemos‐Espinal

et al.

Evolutionary Journal of the Linnean Society, Journal Year: 2024, Volume and Issue: 3(1)

Published: Jan. 1, 2024

Abstract The diversity of life forms that surround us formed through a variety processes. Speciation researchers use suite comparative approaches to understand both the generalities and variance underpinning this diversification. Here, we summarize these what they have taught us, then apply them speciation in night lizards Xantusia, genus small found arid regions western North America. Although Xantusia species span range phenotypic genetic divergence, find appears be predictable consequence divergence extended periods allopatry. We conclude by identifying possible areas growth for studies speciation.

Language: Английский

Citations

0
Comparative Population Genomic Diversity and Differentiation in Trapdoor Spiders and Relatives (Araneae, Mygalomorphae) DOI Creative Commons
Rodrigo Monjaraz‐Ruedas, James Starrett, Lacie Newton

et al.

Molecular Ecology, Journal Year: 2024, Volume and Issue: 33(22)

Published: Oct. 8, 2024

Although patterns of population genomic variation are well-studied in animals, there remains room for studies that focus on non-model taxa with unique biologies. Here we characterise and attempt to explain such mygalomorph spiders, which generally sedentary, often occur as spatially clustered demes show remarkable longevity. Genome-wide single nucleotide polymorphism (SNP) data were collected 500 individuals across a phylogenetically representative sample taxa. We inferred genetic populations within focal using informed clustering approach, characterised diversity differentiation within- among these populations, respectively. Using phylogenetic comparative methods asked whether geographical range sizes ecomorphological variables (behavioural niche body size) significantly differentiation. Specifically, predicted higher larger ranges, small-bodied also greater taxa, burrowing recovered several significant predictors diversity, but not However, found high all consistent signal isolation-by-distance irrespective behavioural or size. hypothesise structuring, likely reflecting combined dispersal limitation microhabitat specificity, is shared trait mygalomorphs. Few have ubiquitous structuring an entire ancient species-rich animal clade.

Language: Английский

Citations

0
Distinct intraspecific diversification dynamics in Neotropical montane versus lowland birds revealed by whole-genome comparative phylogeography DOI Open Access
Kristen S. Wacker, Benjamin M. Winger

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 2, 2024

Abstract Comparing phylogeographic patterns across different biogeographic regions can illuminate how types of landscapes promote the formation incipient species, providing insights into evolutionary mechanisms underlying broadscale biodiversity gradients. The Neotropics are a global hotspot, and megadiverse Andes-Amazonia system has elevational gradients in both species richness speciation rates. Here, we compare dynamics birds tropical Andes mountains versus Amazonian lowlands using whole genomes from congeneric set colorful canopy frugivores ( Tangara tanagers). We first show that Andean have greater population structuring their geographic ranges than species. Next, evaluated whether differences barrier efficacy range size drive this elevated population-level divergence mountains. find differentiation reduced gene flow individual barriers Andes. Furthermore, consistently lower genetic diversity smaller effective sizes. Together, these results support model Neotropical diversification whereby form more readily owing to populations. These processes carry implications for our understanding origin maintenance regional

Language: Английский

Citations

0
The Metapopulation Bridge to Macroevolutionary Speciation Rates: A Conceptual Framework and Empirical Test DOI Creative Commons
Matheus Januario, Malin L. Pinsky, Daniel L. Rabosky

et al.

Ecology Letters, Journal Year: 2024, Volume and Issue: 28(1)

Published: Dec. 31, 2024

ABSTRACT Whether large‐scale variation in lineage diversification rates can be predicted by species properties at the population level is a key unresolved question interface between micro‐ and macroevolution. All else being equal, with biological attributes that confer metapopulation stability should persist more often timescales relevant to speciation so give rise new (incipient) forms share these traits. Here, we develop framework for testing relationship related persistence phylogenetic rates. We illustrate this conceptual approach applying it long‐term dataset on demersal fish communities from North American continental shelf region. find one index of has signal, suggesting traits are connected range‐wide demographic patterns. However, there no rate. These findings suggest decoupling ecological dynamics decadal million‐year clade dynamics, raising questions about extent which population‐level processes observable over extrapolated infer biodiversity generally.

Language: Английский

Citations

0