Results 21 to 30 of about 1,679 (152)

El uso ceremonial de la cícada amenazada "espadaña" (Dioon merolae, Zamiaceae) por una comunidad de la depresión central de Chiapas, México

open access: yesBotan‪ical Sciences, 2006
Dioon merolae De Luca, Sabato et Vázq.Torres, una especie de cícada de Chiapas conocida localmente como espadaña, juega un papel importante durante la festividad de la Santa Cruz del 3 de mayo entre la comunidad de Suchiapa de la Depresión Central del ...
Miguel A. Pérez-Farrera   +1 more
doaj   +1 more source

ESTRUCTURA POBLACIONAL Y DISTRIBUCIÓN ESPACIAL DE Ceratozamia mexicana BRONGN. (ZAMIACEAE) EN UN AMBIENTE CONSERVADO Y EN UNO PERTURBADO [PDF]

open access: yes, 2012
Vegetal populations are affected by biotic and abiotic factors that influence the regeneration processes. The aims of this study were to know the population structure of Ceratozamia mexicana under two contrasting conditions (conserved site and disturbed ...
Iglesias, Lourdes G.   +5 more
core   +2 more sources

The effects of a synthetic insecticide and a mineral oil on alfalfa insect pests [PDF]

open access: yesPesticidi i Fitomedicina, 2018
The effects of the synthetic insecticide Eforia 043 ZK (thiamethoxam+lambdacyhalothrin), applied alone and at 1/5 and 2/5 reduced doses in a mix with the mineral oil Akarzin, on Tychius flavus Beck.
Mitkova Nikolova Ivelina   +1 more
doaj   +1 more source

Establecimiento de condiciones in vitro para la inducción de Morfogénesis en Dioon merolae De Luca, Sabato y Vázquez Torres (Zamiaceae) especie en peligro de extinción [PDF]

open access: yes, 2009
Organogenic cultures were induced from zygotic embryo and megagametophyte explants of the Chiapas State (México) endangered cycad species, Dioon merolae De Luca Sabato & Vazquez Torres.
SANDRA LUZ CABRERA HILERIO
core   +2 more sources

Evaluación del riesgo de extinción de Zamia prasina en la Provincia Biótica Península de Yucatán [PDF]

open access: yes, 2020
Zamia prasina es una cícada nativa de la Provincia Biótica Península de Yucatán. Esta especie fue categorizada, según la Norma Mexicana NOM-059 del 2010, como en protección especial (Pr) y según las normas de la Unión Internacional para la Conservación ...
Andrew P. Vovides   +4 more
core   +2 more sources

Comparative Material and Mechanical Properties among Cicada Mouthparts: Cuticle Enhanced with Inorganic Elements Facilitates Piercing through Woody Stems for Feeding

open access: yesBiology, 2023
Adult cicadas pierce woody stems with their mouthparts to feed on xylem, suggesting the presence of cuticular adaptations that could increase hardness and elastic modulus.
Kristen E. Reiter   +5 more
doaj   +1 more source

Periodical Cicadas and the Abundance of Time

open access: yesJournal for the History of Knowledge, 2023
The life cycle of periodical cicadas, like the scientists who have studied them, is characterized by periods of long waiting punctuated with spectacular bouts of activity.
Erika Lorraine Milam
doaj   +1 more source

Cicada Killer, Giant Ground Hornet, Sphecius hogardii (Latreille) and Sphecius speciosus (Drury) (Insecta: Hymenoptera: Sphecidae)

open access: yesEDIS, 2005
Cicada killers, or giant ground hornets, are among the largest wasps in Florida (up to 40 mm in length). They are conspicuous insects, since the males are territorial and will butt or grapple with intruders including other males. There are 22 species of
Lionel A. Stange
doaj   +5 more sources

A Non-Gradual Development Process of Cicada Eyes at the End of the Fifth-Instar Nymphal Stage to Obtain Visual Ability

open access: yesInsects, 2022
Insects’ visual system is directly related to ecology and critical for their survival. Some cicadas present obvious differences in color and ultrastructure of compound eyes between nymphal and adult stages, but little is known about when cicadas obtain ...
Minjing Su   +3 more
doaj   +1 more source

Estudio exploratorio de comercialización de la cicada Dioon edule L., en Veracruz México [PDF]

open access: yes, 2019
Hoy en día las cicadas en general, tienen un alto potencial con fines ornamentales, y específicamente la Dioon edule L., es objeto de extracción en su estado natural para su comercialización de forma clandestina, dañando con ello la destrucción de su ...
Alejandro Retureta Aponte   +4 more
core   +2 more sources

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