Results 21 to 30 of about 622 (179)

Floral adaptation and modular trait evolution associated with a shift from bee to hummingbird pollination

Plant Biology, EarlyView.
By comparing floral trait variation, integration and modularity in two sister species of Neotropical Costus with a pollination shift, we show that, despite pollination syndrome divergence, both species exhibit low floral variation and functional modularity, consistent with pollinator‐driven selection on traits mediating pollen transfer efficiency and ...
P. Juárez, K. M. Kay
wiley   +1 more source

Golfo de California: pueblos indígenas y justicia ambiental

Ra Ximhai, 2007
El Golfo de California (GC) está emergiendo como una región socioeconómica en la cual el ecosistema marino congrega actividades productivas de cinco estados de la República Mexicana: Baja California Sur, Baja California, Sonora, Sinaloa y Nayarit. Simultáneamente, el (GC) se ha convertido en zona prioritaria para la conservación ambiental, tanto de ...
Diana Luque, Eduwiges Gómez
openaire   +1 more source

Advancing gambogic acid for translational oncology: Redox–proteostasis collapse, multidrug resistance reversal, nanodelivery and biomarker‐guided development

Clinical and Translational Discovery, Volume 6, Issue 4, August 2026.
Gambogic acid exerts anticancer effects through reactive oxygen species‐mediated apoptosis, suppression of nuclear factor kappa B and phosphatidylinositol‐3‐kinase–protein kinase B signalling, multidrug resistance modulation and tumour microenvironment effects.
Uttam Singh Baghel, Kajal Gurow, Geetanjali Mehara, Priyanka Kriplani, Neelam M. Patel, Abhay Sharma, Deeksha Singh, Atamjit Singh, Suchi Dave, Bhawani Singh, Lashyn N. Kiyekbayeva, William N. Setzer, Javad Sharifi‐Rad, Cheryl Grace Pratiwi Rumahorbo, Daniela Calina   +14 more
wiley   +1 more source

Dispersión de ondas Rayleigh al Sur del Golfo de California

Geofísica Internacional, 1969
La inversión en observaciones de dispersión superficial de ondas fue usada con frecuencia para determinar Ia estructura de Ia tierra, especialmente de sus partes exteriores. En una región, a Ia vez tan llena de temblores como escasamente dotada de sismógrafos como México, los métodos de tipo estación única para determinar Ia dispersión parecen ser mas ...
L. Knopoff, F.A. Schwab, J.W. Schlue
openaire   +2 more sources

Pollinator efficiency, rather than bee decline, explains a shift to hummingbird pollination in tropical montane forests

New Phytologist, Volume 251, Issue 4, Page 2237-2247, August 2026.
Hummingbird pollination is a hallmark of American plant diversity and has long been thought to evolve in tropical mountains due to declining bee activity. Using sister species of Costus specialized on bees (C. kuntzei) and hummingbirds (C. wilsonii), we show that this shift is not driven by reduced bee visitation with elevation, but by greater ...
Pedro Juárez, Kathryn Gerhardt, Eden Hughes, Cecilia Girvin, Anise Dellith‐Moser, Dennis Tenorio, Annya Livak, Kathleen M. Kay   +7 more
wiley   +1 more source

ORCHESTRATING DIFFERENCE AND SIMILARITY: Black Fungibility, and the Spatial Redrawing of Racial Categories in Spanish Colonial Morocco, Sahara and Guinea

International Journal of Urban and Regional Research, Volume 50, Issue 4, Page 960-981, July 2026.
Abstract In this article I dissect the spatial strategies through which the Spanish attempted to orchestrate both racial difference and similarity in the African colonies of Morocco, Western Sahara and Equatorial Guinea during the first half of the twentieth century.
Pol Fité Matamoros
wiley   +1 more source

Geographic risks to functional groups of mammals and birds from habitat loss in Mexico

Conservation Biology, Volume 40, Issue 3, June 2026.
Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás, Francisco Botello, Claudia E. Moreno, Griselda Escalona‐Segura, Víctor Sánchez‐Cordero   +4 more
wiley   +1 more source

On two Psolidae (Echinodermata: Holothuroidea) from the Gulf of California, Mexico Dos Psolidae (Echinodermata: Holothuroidea) del golfo de California, México

Revista Mexicana de Biodiversidad, 2013
Two species of holothuroids of the family Psolidae have been collected in the Gulf of California, Mexico. Psolus diomedeae Ludwig, 1894, a species previously known from the Pacific coast of Mexico and abundant in the Gulf of California was collected in 3
Claude Massin, Michel E. Hendrickx
doaj  

Preliminary tight-fit Neogene paleoreconstruction of Baja California Peninsula, Mexico

Geofísica Internacional, 1995
Una reconstrucción de las posiciones relativas de Ia península y Ia parte continental de Mexico, obtenida por un método computacional puramente geométrico, es empleada para investigar las posibles modificaciones y Ia segmentación de la península.
Jaime Urrutia Fucugauchi
doaj   +1 more source

Preservative Ethanol From Stomach Contents Is a Reliable Proxy for Diet DNA Metabarcoding

Environmental DNA, Volume 8, Issue 3, May–June 2026.
We tested whether DNA metabarcoding of preservative ethanol can substitute bulk stomach contents for reconstructing diets. Using two ethanol DNA extraction methods (precipitation and drying), the resulting profiles showed minor differences relative to each other and to bulk contents in richness, composition, and read counts, mostly limited to low ...
Daniel A. Velarde‐Garcéz, Patrícia Guedes, Cátia Chaves, Joana Pinto, Tania Bird, Yodiney dos Santos, Marion Tafani, Maria da Conceição Afonso, Marquinha Martins, Ricardo Lima, Pedro Beja, Vanessa A. Mata   +11 more
wiley   +1 more source