Mass extinctions and their rebounds: a macroevolutionary framework

Paleobiology, Год журнала: 2025, Номер unknown, С. 1 - 14

Опубликована: Янв. 21, 2025

Abstract Mass extinctions are natural experiments on the short- and long-term consequences of pushing biotas past breaking points, often with lasting effects structure function biodiversity. General properties mass extinctions—exceptionally severe, taxonomically broad, global losses taxa—are starting to come into focus through comparisons among dimensions biodiversity, including morphological, functional, phylogenetic diversity. Notably, functional diversity tends persist despite severe taxonomic diversity, whereas taxic morphological may or not be coupled. One biggest challenges in synthesizing extracting general these events has been that they driven by multiple, interacting pressures, taxa their traits vary events, making it difficult link single stressors specific traits. Ongoing improvements stratigraphic resolution for multiple clades will sharpen tests selectivity help isolate hitchhiking effects, whereby organismal carried differential survival extinction owing other higher-level attributes, such as geographic-range size. Direct comparative analyses across also clarify impacts particular drivers taxa, traits, morphologies. It is just filter deserves attention, longer-term impact derives part from ensuing rebounds. More work needed uncover biotic abiotic circumstances spur some re-diversification while relegating others marginal shares Combined insights filters rebounds bring a macroevolutionary view approaching biodiversity crisis Anthropocene, helping pinpoint clades, groups, morphologies most vulnerable failed

Язык: Английский

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Bathymetric evolution of black corals through deep time

Proceedings of the Royal Society B Biological Sciences, Год журнала: 2023, Номер 290(2008)

Опубликована: Окт. 3, 2023

Deep-sea lineages are generally thought to arise from shallow-water ancestors, but this hypothesis is based on a relatively small number of taxonomic groups. Anthozoans, which include corals and sea anemones, significant contributors the faunal diversity deep sea, timing mechanisms their invasion into biome remain elusive. Here, we reconstruct fully resolved, time-calibrated phylogeny 83 species in order Antipatharia (black coral) investigate bathymetric evolutionary history. Our reconstruction indicates that extant black coral first diversified continental slope depths (∼250–3000 m) during early Silurian (∼437 millions years ago (Ma)) subsequently radiated into, within, both shelf (less than 250 abyssal (greater 3000 habitats. Ancestral state analysis suggests appearance morphological features enhanced ability acquire nutrients coincided with novel depths. findings have important conservation implications for anthozoan lineages, as loss ‘source’ could threaten history confound future events, thereby warranting protection.

Язык: Английский

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Combining Molecular, Macroevolutionary, and Macroecological Perspectives on the Generation of Diversity

Cold Spring Harbor Perspectives in Biology, Год журнала: 2024, Номер 16(9), С. a041453 - a041453

Опубликована: Март 19, 2024

Charles Darwin presented a unified process of diversification driven by the gradual accumulation heritable variation. The growth in DNA databases and increase genomic sequencing, combined with advances molecular phylogenetic analyses, gives us an opportunity to realize Darwin's vision, connecting generation variation lineages. rate evolution is correlated across animals plants, but relationship between genome change speciation complex: Mutation rates evolve response life history niche; substitution are influenced mutation, selection, population size; acquisition reproductive isolation vary populations; traits, niches, distribution can influence rates. connection mutation one part complex varied story speciation, which has theoretical importance for understanding biodiversity also practical impacts on use understand dynamics over macroevolutionary timescales.

Язык: Английский

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The link between ancient whole‐genome duplications and cold adaptations in the Caryophyllaceae

American Journal of Botany, Год журнала: 2024, Номер 111(8)

Опубликована: Июнь 2, 2024

Abstract Premise The Caryophyllaceae (the carnation family) have undergone multiple transitions into colder climates and convergence on cushion plant adaptation, indicating that they may provide a natural system for cold adaptation research. Previous research has suggested putative ancient whole‐genome duplications (WGDs) are correlated with niche shifts across the Caryophyllales. Here, we explored genomic changes potentially involved in one of these discovered Caryophyllaceae. Methods We constructed data set combining 26 newly generated transcriptomes 45 published transcriptomes, including 11 species seven genera. With this set, inferred dated phylogeny mapped WGDs gene onto phylogeny. also examined functional groups enriched related to climatic shift. Results ASTRAL topology was mostly congruent current consensus relationships within family. 15 family, eight not been previously published. oldest WGD (ca. 64.4–56.7 million years ago), WGD1, found be associated shift by previous Gene regions ubiquitination were overrepresented retained after WGD1 those convergently plants Colobanthus Eremogone , along other annotations. Conclusions family expansions induced contributed niches Transcriptomic crucial resources help unravel heterogeneity deep‐time evolutionary patterns plants.

Язык: Английский

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Innovation and elaboration on the avian tree of life

Science Advances, Год журнала: 2023, Номер 9(43)

Опубликована: Окт. 25, 2023

Widely documented, megaevolutionary jumps in phenotypic diversity continue to perplex researchers because it remains unclear whether these marked changes can emerge from microevolutionary processes. Here, we tackle this question using new approaches for modeling multivariate traits evaluate the magnitude and distribution of elaboration innovation evolution bird beaks. We find that elaboration, along major axis change, is common at both macro- scales, whereas innovation, away more prominent scales. The change among species beak shapes scales an emergent property across clades. Our analyses suggest reorientation phenotypes via a ubiquitous route divergence arise through gradual alone, opening up further avenues explore.

Язык: Английский

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On the multiscale dynamics of punctuated evolution

Trends in Ecology & Evolution, Год журнала: 2024, Номер 39(8), С. 734 - 744

Опубликована: Май 31, 2024

For five decades, paleontologists, paleobiologists, and ecologists have investigated patterns of punctuated equilibria in biology. Here, we step outside those fields summarize recent advances the theory evidence for equilibria, gathered from contemporary observations geology, molecular biology, genetics, anthropology, sociotechnology. Taken aggregate, these lead to a more general that refer as evolution. The quality datasets is beginning illustrate mechanics evolution way can be modeled across vast range phenomena, mass extinctions hundreds millions years ago possible future ahead Anthropocene. We expect study applicable beyond biological scenarios.

Язык: Английский

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Perfect storms shape biodiversity in time and space

Evolutionary Journal of the Linnean Society, Год журнала: 2023, Номер 2(1)

Опубликована: Янв. 1, 2023

Abstract Many of the most dramatic patterns in biological diversity are created by “Perfect Storms” —rare combinations mutually reinforcing factors that push origination, extinction, or accommodation to extremes. These include strongest diversification events (e.g. Cambrian Explosion animal body plans), proliferation hyperdiverse clades insects, angiosperms), richest biodiversity hotspots New World Tropical Montane regions and ocean's greatest pump, tropical West Pacific), severe extinction Big Five mass extinctions Phanerozoic). Human impacts on modern biota also a Perfect Storm, both mitigation restoration strategies should be framed accordingly, drawing biodiversity's responses multi-driver processes geologic past. This approach necessarily weighs contributing factors, identifying their often non-linear time-dependent interactions, instead searching for unitary causes.

Язык: Английский

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A Middle Triassic Cassian‐type fauna (Pelsa‐Vazzoler Lagerstätte) and the adaptive radiation of the Modern evolutionary fauna

Papers in Palaeontology, Год журнала: 2024, Номер 10(4)

Опубликована: Июль 1, 2024

Abstract We describe a high‐diversity silicified assemblage of marine molluscs (Pelsa‐Vazzoler Lagerstätte) from the upper Ladinian Agordo Dolomites (northeastern Italy). New data on Triassic rebound, after end‐Permian mass extinction, constrain it to an interval relatively stable climatic conditions. This Lagerstätte, in Sciliar Formation, yields structure comparable famous lower Carnian San Cassiano Lagerstätte and suggests that radiation benthic may have occurred as early late Middle Triassic. classified more than 4800 Cassian‐type molluscs, measuring abundance distributions 109 species, including one new family (Rhaetidiidae), three genera ( Pelsia , Gaetania Agordozyga ) 21 species: Grammatodon egortinus Modiolus friesenbichlerae Myoconcha busattae Schizogonium letiziae Predazzella ? monarii Eucycloscala nitida Tricolnaticopsis elongatus Cortinella stricta Triadoskenea alpicornu Trachynerita tenuicostata Coelostylina civettae coronata caprina Euthystylus dincae Zygopleura elongata Diatrypesis agordina Cryptaulax pelsae Pseudoscalites karapunari Promathildia gracile Camponaxis ladinica Striactaeonina ingens . In this fauna, associated with tropical carbonate platforms, epifaunal filter‐feeding bivalves adopted antipredatory features gastropods conquered ecospace, parasitism microcarnivory sponges scleractinian corals. Small size was advantage ecosystem small, isolated patch reefs. is how, where when caenogastropod heterobranch snails (groups today dominate global diversity) began their rise benthos. The origins some evolutionary innovations are key our understanding time place Mesozoic Marine Revolution, therefore pushed back

Язык: Английский

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Cambrian origin but no early burst in functional disparity for Class Bivalvia

Biology Letters, Год журнала: 2023, Номер 19(5)

Опубликована: Май 1, 2023

Both the Cambrian explosion, more than half a billion years ago, and its Ordovician aftermath some 35 Myr later, are often framed as episodes of widespread ecological opportunity, but not all clades originating during this interval showed prolific rises in morphological or functional disparity. In direct analysis disparity, instead commonly used proxy we find that functions Class Bivalvia arose concordantly with even lagged behind taxonomic diversification, rather early-burst pattern expected for supposedly open landscapes. Unlike several other bivalves' belated acquisition key anatomical novelties imposed macroevolutionary lag, when those evolved Early Ordovician, disparity never surpassed diversity. Beyond early period animal evolution, founding subsequent diversification new major their might be to follow bivalves—one where interactions between highly dynamic environmental biotic landscapes evolutionary contingencies need promote innovation.

Язык: Английский

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Culture and Evolvability: a Brief Archaeological Perspective

Journal of Archaeological Method and Theory, Год журнала: 2023, Номер 30(4), С. 1079 - 1108

Опубликована: Ноя. 1, 2023

Язык: Английский

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