Results 41 to 50 of about 582 (132)

Nuevos registros del mosquero copetón (Mitrephanes phaeocercus) en la costa central de Veracruz

Huitzil, 2022
El mosquero copetón (Mitrephanes phaeocercus) es un tiránido ampliamente distribuido en las regiones montañosas de México y Centroamérica. La especie reside principalmente en bosques de pino-encino y bosques de niebla, pero se tienen registros en ...
Adrián Ciprés Chávez, Enya Astrid Córdoba-Cuevas, Jordi Toto-Cobix   +2 more
doaj   +1 more source

Heat drastically alters floral color and pigment composition without affecting flower conspicuousness

American Journal of Botany, Volume 113, Issue 1, January 2026.
Abstract Premise Floral pigments primarily serve to attract pollinators through color display and also contribute to protection against environmental stress. Although pigment composition can be plastically altered under stress, its impact on pollinator color perception remains poorly understood.
Eduardo Narbona, Francisco Perfectti, Adela González‐Megías, Luis Navarro, José C. del Valle, Cristina Armas, José M. Gómez   +6 more
wiley   +1 more source

Biología reproductiva y citogenética de Distichia muscoides (Juncaceae).

Boletín de la Sociedad Argentina de Botánica, 2016
El género Distichia Nees & Meyen (Juncaceae) está formado por tres especies nativas de Sudamérica, siendo Distichia muscoides Nees & Meyen la más ampliamente distribuida (Kirschner et al., 2002).
Paúl Gonzáles, Mery Suni, Rocío Deanna, Marisela A Scaldaferro, Elena Castañeda, Dámaso W. Ramirez, Asunción Cano   +6 more
doaj   +1 more source

Tomato flowering depends on overlapping functions of AP1/FUL‐like genes in reproductive meristem specification

New Phytologist, Volume 248, Issue 2, Page 1002-1020, October 2025.
Summary AP1/FUL‐clade transcription factors (TFs) are essential for the initiation and regulation of flowering and have clearly separated functions in Arabidopsis. However, how these functions have diverged across eudicots remains unclear. Here, we performed a detailed analysis to unravel the distinct and overlapping functions of the tomato AP1 ...
Xiaobing Jiang, Iris E. Zahn, Kai Thoris, Chris Roelofsen, Edelin Roque, Concepción Gómez‐Mena, Cristina Ferrándiz, Hongru Wang, Gerco C. Angenent, Marian Bemer   +9 more
wiley   +1 more source

Biología reproductiva de la uchuva

Acta Agronómica, 2008
Los objetivos del trabajo fueron determinar la época de maduración del polen y del estigma y establecer el tipo de polinización de la uchuva en condiciones de invernadero con cinco genotipos de uchuva.
Tulio César Lagos B., Franco Alirio Vallejo Cabrera, Hernando Criollo Escobar, Jaime Eduardo Muñoz Flórez   +3 more
doaj  

Thresholds for spring freeze: measuring risk to improve predictions in a warming world

New Phytologist, Volume 248, Issue 2, Page 563-575, October 2025.
Summary Plant distribution and productivity are shaped by environmental stressors, particularly freezing events in extra‐tropical regions. In early spring, a progressive loss of cold hardiness with phenological development leaves emerging tissues vulnerable to freezing events.
Erica Kirchhof, Francisco Campos‐Arguedas, Nadia Soledad Arias, Al P. Kovaleski   +3 more
wiley   +1 more source

Ants on flowers: Protective ants impose a low but variable cost to pollination, moderated by location of extrafloral nectaries and type of flower visitor

Journal of Ecology, Volume 113, Issue 8, Page 2187-2198, August 2025.
Individuals who engage in multiple mutualisms often have to pay indirect costs because of the interference of one mutualism on another. We found that protective ants had a low but variable impact on pollination, especially on the flower visitation by bees and when EFNs are close to inflorescences.
Amanda Vieira da Silva, Anselmo Nogueira, Judith L. Bronstein, Pedro J. Rey, Laura Carolina Leal   +4 more
wiley   +1 more source

Spatiotemporal Dynamics of Non‐Ecological Speciation in Rubyspot Damselflies (Hetaerina spp.)

Molecular Ecology, Volume 34, Issue 12, June 2025.
ABSTRACT Non‐ecological speciation is a common mode of speciation, which occurs when allopatric lineages diverge in the absence of pronounced ecological differences. Yet, relative to other speciation mechanisms, non‐ecological speciation remains understudied.
C. Patterson, A. Brennan, H. Cowling, A. González‐Rodríguez, G. F. Grether, L. Mendoza Cuenca, M. Springer, Y. M. Vega‐Sánchez, J. Drury   +8 more
wiley   +1 more source

Human oocyte capacitation culture: Essential step toward hormone‐free assisted reproductive technology

Reproductive Medicine and Biology, Volume 24, Issue 1, January/December 2025.
The biphasic CAPA‐IVM system promotes oocyte competence acquisition. The use of CAPA‐IVM in clinical studies has set the tone for major progress in the field and is achieving a safer, less expensive, and less emotionally loaded IVF experience, currently validated for PCOS patients.
Johan Smitz, Flor Sánchez, Sergio Romero, Heidi Van Ranst, Ellen Anckaert, Robert B. Gilchrist, Tuong M. Ho, Lan N. Vuong, Yoshiharu Morimoto   +8 more
wiley   +1 more source

Sex‐Specific Variation in Foraging Behavior is Related to Telomere Length in a Long‐Lived Seabird

Ecology and Evolution, Volume 14, Issue 12, December 2024.
Foraging during breeding is energetically demanding, intimately linked to breeding investment, and possibly constrained by individual condition. Telomere length, the protective nucleoproteins located at the ends of the chromosomes, is considered a trait reflecting somatic maintenance and individual quality. We found that brown booby females with longer
Mauricio Guillen‐Parra, Rocio Barcenas‐Flores, Alberto Velando, Anne Wiley, Bibiana Montoya, Roxana Torres   +5 more
wiley   +1 more source