Patrones de riqueza de especies y conservadurismo filogenético del nicho ecológico en la Zona de Transición Mexicana: evidencia y herramientas para su estudio

Revista Mexicana de Biodiversidad, Год журнала: 2025, Номер 96, С. e965347 - e965347

Опубликована: Янв. 28, 2025

Los patrones de riqueza resultan la superposición geográfica los nichos ecológicos múltiples especies. El conservadurismo filogenético del nicho ecológico y dispersión son procesos esenciales para entender geográficos en Aquí actualizamos teoría ensamble biótico Zona Transición Mexicana (ZTM) incorporando al concepto ecológico. La ZTM recurre cenocrón (i.e., conjunto linajes una misma afinidad biogeográfica que comparten historia tiempo dispersión) explicar gradientes Revisamos fundamentos ecológico, postulados su relación con otras hipótesis propuestas especies, el fin comparar las predicciones se derivan ZTM. Ofrecemos guía posibilidades metodológicas evaluar aplicando método comparativo filogenético. Incluimos breve descripción técnicas software disponibles, cómo ingresar datos necesarios otros requisitos implementación, mostramos ejemplos aplicación

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A review of the species groups of the Western Hemisphere Onthophagus Latreille (Coleoptera: Scarabaeidae: Scarabaeinae) using COI barcoding and gene trees

Zootaxa, Год журнала: 2025, Номер 5604(4), С. 401 - 447

Опубликована: Март 16, 2025

Species groups of Western Hemispheric Onthophagus Latreille (Coleoptera: Scarabaeidae: Scarabaeinae: Onthophagini) are suggested using COI barcoding and gene trees supported by congruence with external morphology, behavior, ecology, biogeographic evidence. New species groups, complexes, taxonomic statuses offered, other preexisting proposals confirmed. No gap w as found between the intragroup intergroup genetic distance blocks, but average (8.38%) (13.88%) Kimura-two-parameter distances statistically different. The following seven were mtDNA barcode analysis independent evidence: O. chevrolati, clypeatus, dicranius, gazellinus, hircus, landolti, mexicanus. Eight new suggested: crinitus, curvicornis, eulophus, hecate, hoepfneri, marginatus, nasutus, velutinus. Possible behavioral/ecological adaptations morphological characters also discussed. evolutionary hypotheses advanced. An identification key for is presented.

Язык: Английский

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A diversification relay race from Caribbean-Mesoamerica to the Andes: historical biogeography of Xylophanes hawkmoths

Proceedings of the Royal Society B Biological Sciences, Год журнала: 2022, Номер 289(1968)

Опубликована: Фев. 9, 2022

The regions of the Andes and Caribbean-Mesoamerica are both hypothesized to be cradle for many Neotropical lineages, but few studies have fully investigated dynamics interactions between bioregions. New World hawkmoth genus Xylophanes is most taxonomically diverse in Sphingidae, with highest endemism richness Caribbean-Mesoamerica. We integrated phylogenomic DNA barcode data generated first time-calibrated tree this genus, covering 93.8% species diversity. used event-based likelihood ancestral area estimation biogeographic stochastic mapping examine speciation dispersal across also trait-dependent diversification models compare extinction rates lineages associated different Our results indicate that originated Late Miocene, immediately diverged into five major clades. current diversity distribution can explained by two consecutive phases. In phase, emigration occurred Caribbean-Mesoamerica, immigration Andes, whereas second phase were found Amazonia, had rates.

Язык: Английский

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New World dung beetle (Coleoptera: Scarabaeidae: Scarabaeinae) colonization of a recent Miocene insular territory: The case of Costa Rica

Ecology and Evolution, Год журнала: 2024, Номер 14(6)

Опубликована: Май 30, 2024

Costa Rica emerged from the seas as a new geological territory during Miocene an insular archipelago. It later became part of continental area once it segment Central America. Two dung beetle genera that colonized this South and North America,

Язык: Английский

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Species Paraphyly and Social Parasitism: Phylogenomics, Morphology, and Geography Clarify the Evolution of the Pseudomyrmex elongatulus Group (Hymenoptera: Formicidae), a Mesoamerican Ant Clade

Insect Systematics and Diversity, Год журнала: 2022, Номер 6(1)

Опубликована: Янв. 1, 2022

Abstract Using genetic, morphological, and geographical evidence, we investigate the species-level taxonomy evolutionary history of Pseudomyrmex elongatulus group, a clade ants distributed from southwestern United States to Costa Rica. Through targeted enrichment 2,524 UCE (ultraconserved element) loci generate phylogenomic data set clarify phylogenetic relationships biogeographic these ants. The crown group is estimated have originated ~8 Ma, in Mexico and/or northern Central America, subsequently expanded into southern America Nearctic. P. contains mix low- high-elevation species, there were apparently multiple transitions between habitat types. We uncover three examples one species—of restricted or marginal distribution—being embedded phylogenetically another rendering latter paraphyletic. One cases involves an apparent workerless social parasite that occurs sympatrically with its parent serving as host. This suggests sympatric origin species within distribution range Species boundaries are tested using molecular delimitation approaches (SODA, bPTP, BPP) but methods inflated estimates (26–46 species), evidently because failure distinguish population structure differences. In formal taxonomic revision based on almost 3,000 specimens ~625 localities, allow for geographic variation employ distinctness-in-sympatry criteria testing hypotheses about limits. Under guidelines recognize 13 which nine new: arcanus, sp. nov. (western Mexico); capillatus, cognatus, (Chiapas, Nicaragua); comitator, ereptor, (Veracruz, exoratus, (southeastern Mexico, Honduras); fasciatus, Rica); nimbus, (Costa veracruzensis, Mexico). Our study highlights value combining phylogenomic, phenotypic, resolve questions.

Язык: Английский

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Chewing through challenges: Exploring the evolutionary pathways to wood‐feeding in insects

BioEssays, Год журнала: 2024, Номер 46(5)

Опубликована: Март 27, 2024

Decaying wood, while an abundant and stable resource, presents considerable nutritional challenges due to its structural rigidity, chemical recalcitrance, low nitrogen content. Despite these challenges, certain insect lineages have successfully evolved saproxylophagy (consuming deriving sustenance from decaying wood), impacting nutrient recycling in ecosystems carbon sequestration dynamics. This study explores the uneven phylogenetic distribution of across insects delves into evolutionary origins this trait disparate orders. Employing a comprehensive analysis gut microbiome data, both saproxylophagous their non-saproxylophagous relatives, including new data unexplored wood-feeding insects, Hypothesis paper discusses broader context potential adaptations necessary for dietary specialization. The proposes "Detritivore-First Hypothesis," suggesting pathway through detritivory, highlights critical role symbiotic microbiomes digestion wood.

Язык: Английский

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Complete phylogeny of Micrathena spiders suggests multiple dispersal events among Neotropical rainforests, islands and landmasses, and indicates that Andean orogeny promotes speciation

Cladistics, Год журнала: 2024, Номер unknown

Опубликована: Июнь 11, 2024

Abstract The Neotropical region is the most diverse on planet, largely owing to its mosaic of tropical rainforests. Multiple tectonic and climatic processes have been hypothesized contribute generating this diversity, including Andean orogeny, closure Isthmus Panama, GAARlandia land bridge historical connections among currently isolated forests. Micrathena spiders are widespread in region, thus a complete phylogeny genus allows testing hypotheses at multiple scales. We estimated complete, dated using morphological data for 117 species molecular up five genes subset 79 species. Employing eventc‐based approaches biogeographic stochastic mapping while considering phylogenetic uncertainty, we ancestral distributions, timing direction dispersal events diversification rates areas. generally robust, with uncertainty position some lacking sequences. started diversifying around 25 Ma. cloud forests show highest in‐situ speciation, Amazon major source adjacent Dry Diagonal generated few sink diversity. Species exchange between Central South America involved approximately 23 ~20 Ma, which consistent Miocene age Panama closure. inferred four from Antilles last 20 Myr, indicating did not reach islands through bridge. identified important routes Amazon, Atlantic during Plio‐Pleistocene. Sampling all was fundamental conclusions above, especially identifying as area that majority This highlights importance taxonomic sampling studies.

Язык: Английский

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Complete phylogeny ofMicrathenaspiders suggests multiple dispersal events among Neotropical rainforests, islands, and landmasses, and indicates Andean orogeny promotes speciation

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2023, Номер unknown

Опубликована: Ноя. 3, 2023

Abstract The Neotropical region is the most diverse on planet, largely due to its mosaic of tropical rainforests. Multiple tectonic and climatic processes have been hypothesized play a role in generating this diversity; these include Andean orogeny, closure Panama Isthmus, GAARlandia land bridge, putative historical connections among currently isolated forests. Micrathena spiny spiders (Araneidae) ∼120 species distributed mostly forests from Mexico Argentina, including Antilles. Here, we use it as model study biogeographic history rainforests by estimating complete, dated phylogeny using morphological data for all molecular subsample 79 species. This resulted that robust supports previously recognized groups, although with uncertainty phylogenetic position some species, especially those lacking sequences. genus began diversifying about 25 million years ago. We an event-based approach stochastic mapping estimate ancestral distributions timing direction dispersal events, identify areas where diversity was generated, while accounting uncertainty. cloud generated majority through in-situ speciation, but Amazon major source adjacent dispersal; other extreme, Dry Diagonal received very little diversity. Species exchange between Central South America intense, ∼23 events beginning at least 20 ago, indicating dispersed continents before Isthmus Panama. also inferred ∼4 over-water North Antilles, which happened last years, thus much after proposed age bridge. identified important route Atlantic Sampling fundamental conclusions above, identifying Andes area highlights importance solid complete taxonomic sampling studies.

Язык: Английский

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The Brachypterous Species of Passalus (Pertinax) (Coleoptera: Passalidae), with the Description of a New Species from Sierra Nevada de Santa Marta, Colombia

Neotropical Entomology, Год журнала: 2022, Номер 51(5), С. 722 - 741

Опубликована: Сен. 21, 2022

Brachypterism is a common condition cited in passalid beetles, mainly associated to species with strictly montane distributions. In the New World Passalids, brachypterism has been reported especially tribe Proculini, for which almost all genera have brachypterous species; meanwhile, Passalini, other Netropical tribe, it only genus Passalus, subgenus Passalus (Passalus). Here we present commented list of (Pertinax); redescribed gravelyi Moreira, P. quitensis (Kaup), striatissimus Luederwaldt, and sulcifrons (Kuwert) describe new from Sierra Nevada de Santa Marta, Colombia.

Язык: Английский

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Los escarabajos de la madera (Coleoptera: Passalidae) y su relación con los sitios de conservación

Revista Conservación Colombiana, Год журнала: 2022, Номер unknown, С. 60 - 66

Опубликована: Март 1, 2022

Los escarabajos de la madera son coleópteros que se caracterizan por alimentarse en descomposición y llevar a cabo todo su ciclo vida el interior los troncos podridos. Son insectos subsociales tienen mecanismos diferenciados permiten comunicación sonora entre individuos. Por sus hábitos, pasálidos dependen totalmente disponibilidad descomposición, lo abundancia riqueza pueden verse afectados procesos transformación degradación bosques. Colombia es país con mayor especies pasálidos, sin embargo, muchas zonas del aún permanecen inexploradas para grupo. Así mismo, mayoría las conocidas concentran enfrentan amenazas producto actividades humanas. ello, importante desarrollar proyectos permitan conocer especies, así como variables ambientales microhábitat están asociadas, permitiría anticipar efectos ambiental. A continuación, presentamos una reseña sobre principales aspectos importancia ecológica citamos un ejemplo estudio asociación hábitat Sierra Nevada Santa Marta.

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