Results 51 to 60 of about 112,326 (235)

Cenozoic Tectonics Ignite Mitochondrial Codon Innovations Propelling Canid Body Size Evolution and Transcontinental Radiations

open access: yesIntegrative Zoology, EarlyView.
We decode mitochondrial genomes across all extant canids, revealing lineage‐specific codon optimization driven by altitude, predation, and body size. A tripartite framework integrates geological events, metabolic constraints, and adaptive radiation to explain carnivore evolution.
Xiaoyang Wu   +8 more
wiley   +1 more source

Nota previa sobre el Pérmico de la Cordillera Ibérica y bordes del Sistema Central [PDF]

open access: yes, 1973
[ES] Se describen las principales características estratigráficas de varios afloramientos pérmicos de los bordes del Macizo Central y Cordillera Ibérica.
Hernando Costa, Santiago   +3 more
core   +1 more source

The onset of grasses in the Amazon drainage basin, evidence from the fossil record [PDF]

open access: yes, 2020
Poaceae (the grass family) originated in the Cretaceous, but first dominate the palynological records of the Amazon drainage basin (ADB) in the Neogene (23 to 2.5 million years ago (Ma)).
Hoorn, Carina, Kirschner, Judith A.
core   +3 more sources

Biodiversity‐driven spatial conservation planning to delineate temporally stable regions

open access: yesConservation Biology, EarlyView.
Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella   +5 more
wiley   +1 more source

New species of Eleutherodactylus of Colombia (Amphibia: Leptodactylidae). I: five new species from the paramos of the Cordillera Central New species of Eleutherodactylus of Colombia (Amphibia: Leptodactylidae). I: five new species from the paramos of the Cordillera Central

open access: yesCaldasia, 1980
Se describen aquí las nuevas especies Eleutherodactylus obmutescens, E. racemus y E. simoterus, del grupo unistrigatus, provenientes de los Páramos de Puracé, Las Hermosas y Letras, respectivamente, en la Cordillera Centralde Colombia. Estas especies son
Lynch John D.
doaj  

Rice EMF3 Alleles Adjust Flower Opening Time to Enhance the Seed Setting Rate Under High Temperature Stress

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT To safeguard global food security against rapid population growth and a warming world, the effective genetic improvement of cereals is imperative. Flower opening time (FOT) critically affects the seed setting rate. In this study, we identified a gene, EARLY‐MORNING FLOWERING 3 (EMF3), in which single‐nucleotide substitutions strongly modulate ...
Takuma Ishizaki   +18 more
wiley   +1 more source

On the origin of the North Pacific arcs [PDF]

open access: yes, 2004
We present a new hypothesis that relates global plate tectonics to the formation of marginal basins, island arcs, spreading ridges and arc-shaped mountain belts around the North Pacific Ocean.
Fornós, Joan J.   +3 more
core   +3 more sources

Climate conditions on the South‐Iberian Palaeomargin during the latest Pliensbachian to early Toarcian: A mineralogical and geochemical study from hemipelagic deposits

open access: yesSedimentology, EarlyView.
ABSTRACT The integrated analysis of lithofacies, mineralogy and geochemistry of the hemipelagic marine succession exposed in La Cerradura section (South‐Iberian Palaeomargin) provides new information to characterise the palaeoenvironmental conditions during the latest Pliensbachian to early Toarcian, including the Jenkyns Event.
Chaima Ayadi   +4 more
wiley   +1 more source

Características de la Araucanización al oriente de los Andes

open access: yesCultura-Hombre-Sociedad
Mapuche- Su etimlogía es muy conocida (araucano mapú "tierra"y che "gente", "gente de lo tierra"). Propongo que se lo utilice estrictamente con su sentido originario, es decir, para denominar al pueblo que pobló y puebla lo Araucanía propiamente dicha ...
Rodolfo Casamiquela
doaj   +3 more sources

Sciodaphyllum sonsonense, una nueva araliácea del bosque altoandino de Antio-quia, Colombia

open access: yesCaldasia, 2019
La especie nueva, nombrada Sciodaphyllum sonsonense, se encuentra en los bosques altoandinos del norte de la Cordillera Central en Antioquia, Colombia. Este taxón comparte algunas características morfológicas con S. huilense y S.
Jáider Jiménez-Montoya   +1 more
doaj   +1 more source

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