The evolution of reproductive leaf dimorphism in two globally distributed fern families is neither stepwise nor irreversible, unless further specialization evolves DOI Creative Commons
Jacob S. Suissa, Mike L. Smith

Evolution, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 2, 2024

A contemporary interpretation of Dollo's Law is that the evolution specialized structures irreversible. Among land plants, reproductive specialization shows a trend toward increasing complexity without reversion, raising questions about evolutionary steps and irreversibility complexity. Ferns, exhibit varied strategies, some are dimorphic (producing separate leaves for photosynthesis reproduction), while others monomorphic (where one leaf used both spore dispersal). This diversity provides an opportunity to examine applicability in across plants. We analyzed 118 species Blechnaceae Onocleaceae using quantitative morphometrics phylogenetic comparative methods test pillars irreversibility. The dimorphism neither stepwise nor irreversible, with direct transitions from monomorphism dimorphism, including several reversions. In contrast, upon further fertile dispersal, suggesting additional specialization, not alone, may facilitate These results provide insight into canalization fertile-sterile seed where traits like heterospory ovules lead potential findings suggest as new evolve alongside pre-existing ones, reversion become increasingly unlikely.

Language: Английский

Diversification and extinction of Hemiptera in deep time DOI Creative Commons
Mathieu Boderau, André Nel, Corentin Jouault

et al.

Communications Biology, Journal Year: 2025, Volume and Issue: 8(1)

Published: March 3, 2025

Untangling the patterns and drivers behind diversification extinction of highly diversified lineages remains a challenge in evolutionary biology. While insect has been widely studied through "Big Four" orders (Coleoptera, Hymenoptera, Lepidoptera Diptera), fifth most diverse order, Hemiptera, often overlooked. Hemiptera exhibit rich fossil record are present-day ecosystems, with many closely associated to their host plants, making them crucial group for studying how past ecological shifts-such as mass extinctions floral turnovers-have influenced diversification. This study leverages birth-death models Bayesian framework estimate diversity dynamics. Our results reveal that global changes flora over time significantly shaped trajectories Hemiptera. Two major faunal turnovers particularly diversification: (i) aftermath Permo-Triassic (ii) Angiosperm Terrestrial Revolution. analyses suggest clades was driven by floristic shifts combined competitive pressures from overlapping niches. Leveraging extensive allowed us refine our understanding across hemipteran lineages.

Language: Английский

Citations

2

The Angiosperm Terrestrial Revolution buffered ants against extinction DOI
Corentin Jouault, Fabien L. Condamine, Frédéric Legendre

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(13)

Published: March 11, 2024

With ~14,000 extant species, ants are ubiquitous and of tremendous ecological importance. They have undergone remarkable diversification throughout their evolutionary history. However, the drivers diversity dynamics not well quantified or understood. Previous phylogenetic analyses suggested patterns associated with Angiosperm Terrestrial Revolution (ATR), but these studies overlooked valuable information from fossil record. To address this gap, we conducted a comprehensive analysis using large dataset that includes both ant record (~24,000 individual occurrences) neontological data (~14,000 occurrences), tested four hypotheses proposed for diversification: co-diversification, competitive extinction, hyper-specialization, buffered extinction. Taking into account biases in record, found three distinct periods (the latest Cretaceous, Eocene, Oligo-Miocene) one extinction period (Late Cretaceous). The hypothesis between stem crown is supported. Instead, support hyper-specialization hypotheses. environmental changes ATR, mediated by angiosperm radiation, likely played critical role buffering against favoring providing new niches, such as forest litter arboreal nesting sites, additional resources. We also hypothesize decline during Late Cretaceous was due to hyper-specialized morphology, which limited ability expand dietary niche changing environments. This study highlights importance holistic approach when studying interplay past environments trajectories organisms.

Language: Английский

Citations

15

Ecological change and conflict reduction led to a social circulatory system in ants DOI Creative Commons
Marie-Pierre Meurville, Daniele Silvestro, Adria C. LeBoeuf

et al.

Communications Biology, Journal Year: 2025, Volume and Issue: 8(1)

Published: Feb. 16, 2025

Abstract Behavioral innovations can be ecologically transformative for lineages that perform them and their associated communities. Many dominant, superorganismal, speciose ant use mouth-to-mouth social regurgitation behavior – stomodeal trophallaxis to share exogenous endogenous materials within colonies. This is less common in other species-poor, cooperative lineages. How why evolved fixed only some clades remains unclear, whether this trait could indicative of superorganismality has yet established. Here we show two main events, non-doryline formicoids around 130 Ma ponerines 90 Ma, today encompass 86% all species. We found began drinking sugary liquids had reduced intra-colonial conflict by constraining worker reproductive potential. Evolution increased net diversification. Causal models indicate required low contributed the large colony sizes ants it. suggests evolution was enabled both reduction opportunistic inclusion nectar honeydew diet during shifts terrestrial ecosystems toward flowering plants.

Language: Английский

Citations

1

The radiation of Hymenoptera illuminated by Bayesian inferences from the fossil record DOI Creative Commons
Corentin Jouault, Nozomu Oyama, Sergio Álvarez‐Parra

et al.

Current Biology, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

1

Ant evolution: Amber revelations of extinction, survival and recovery DOI Creative Commons
Brendon E. Boudinot

Current Biology, Journal Year: 2024, Volume and Issue: 34(8), P. R318 - R320

Published: April 1, 2024

Language: Английский

Citations

3

The fate of South America’s endemic mammalian fauna in response to the most dramatic Cenozoic climate disruption DOI Creative Commons
Lucas Buffan, Fabien L. Condamine, Narla Shannay Stutz

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2025, Volume and Issue: 122(20)

Published: May 5, 2025

Around 34 Mya, the Eocene−Oligocene transition (EOT) marked most dramatic global climatic cooling of Cenozoic. On a planetary scale, paleontological evidence suggests that this was associated with major faunal turnovers, sometimes even regarded as mass extinction crisis. In South America, there is no consensus on response endemic mammals to transition. Here, using vetted fossil dataset and cutting-edge Bayesian methods, we analyzed dynamics American mammal (SAM) diversification their possible drivers across latitude (tropical vs. extratropical), taxonomic groups, trophic guilds throughout ( ca. 56 23 Ma). Our results did not any among SAM at EOT. Instead, they experienced gradual long-term diversity decline from middle Eocene early Oligocene, followed by sudden waxing-and-waning large taxonomic—but ecological—turnover. Tropical extratropical lineages have had very distinct macroevolutionary histories. No effective change in pace which tropical diversify found, thus favoring stability hypothesis proposed Wallace. Diversity-dependent effects, temperature, Andean uplift were recovered probable period. Contrasting casts doubt common primarily linking Oligocene changes grassland expansion. findings illustrate uniqueness deep-time interplay between physical environment context shift, highlighting need consider regional idiosyncrasies for understanding coevolution life climate.

Language: Английский

Citations

0

Review of Wing Morphology in Fossil and Modern Species of Humpbacked Flies (Diptera: Phoridae) DOI Creative Commons
Mélanie C.M. Herbert,

André Nel,

Brian V. Brown

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 4, 2025

Abstract The wing veins of known fossil and living phorids are reduced, making them difficult to homologise. Consequently, different interpretations have led much confusion over the years. However, crucial for phylogenetic taxonomy studies, especially fossils. We addressed these challenges by studying Cretaceous specimens, which exhibit fewer reductions in compared modern fauna, along with post-Cretaceous specimens that display recent patterns. Additionally, we examined related families such as Ironomyiidae, Platypezidae, Opetiidae, Lonchopteridae show similarities Phoridae. results proposal two models include majority found each taxon. early model (Phoridae sensu lato, including Sciadocerinae + “†Prioriphorinae”) consists most species, except †Metopina goeleti from New Jersey amber, displays a pattern. stricto, i.e. Euphorida) is present phorids. These newly proposed facilitate rapid identification Phoridae based on their degree reduction. Based this new interpretation, re-evaluate three holotypes Phoridae: †Euliphora grimaldii, †Prioriphora schroederhohenwarthi, †Ulrichophora lobata. described specimen belonging †Prioriphorain Fouras-Bois Vert amber (France) genus within Ironomyiidae family San Just (Spain). Both findings represent first record taxa respective localities.

Language: Английский

Citations

0

Evolutionary implications of a deep‐time perspective on insect pollination DOI Open Access
David Peris, Jeff Ollerton, Hervé Sauquet

et al.

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Plant pollination by insects represents one of the most transformative and iconic ecological relationships in natural world. Despite tens thousands papers, as well numerous books, on biology published over past 200 years, studies focused fossil record pollinating have only been last few decades, this field is still undergoing major developments. Current palaeontological evidence indicates that were diverse participated reproduction different gymnosperm lineages long before their association with flowering plants (angiosperms). However, since much literature remains unfamiliar to many scientists working extant plant-pollinator interactions, wider public, notion insect began origin angiosperms widespread. Herein we highlight how all known orders and/or extinct pollinator representatives radiated evolution plants. We also illustrate changing composition fauna through time, reflecting nature these communities compared those existing today. Addressing plant from a perspective skewed towards present-day biological groups, patterns, processes risks missing an important deep-time evolutionary component. Our conclusions show fundamental elucidating pollination, informing interactions.

Language: Английский

Citations

0

A hell ant from the Lower Cretaceous of Brazil DOI
Anderson Lepeco, Odair M. Meira,

Diego M Matielo

et al.

Current Biology, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0

Late Cretaceous ammonoids show that drivers of diversification are regionally heterogeneous DOI Creative Commons
Joseph T. Flannery‐Sutherland,

Cameron D. Crossan,

Corinne Myers

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 27, 2024

Palaeontologists have long sought to explain the diversification of individual clades whole biotas at global scales. Advances in our understanding spatial distribution fossil record through geological time, however, has demonstrated that trends biodiversity were a mosaic regionally heterogeneous processes. Drivers must presumably also displayed regional variation produce disparities observed past taxonomic richness. Here, we analyse ammonoids, pelagic shelled cephalopods, Late Cretaceous, characterised by some palaeontologists as an interval biotic decline prior their total extinction Cretaceous-Paleogene boundary. We subdivide this eliminate impacts sampling biases and infer origination rates corrected for temporal using Bayesian methods. then model these abiotic drivers commonly inferred influence diversification. Ammonoid dynamics responses common set diversity heterogeneous, do not support ecological decline, demonstrate signal is influenced effort. These results call into question feasibility seeking scales record.

Language: Английский

Citations

2