Results 31 to 40 of about 59,544,818 (153)
La reproducción requiere grandes cantidades de energía, por lo que muchos organismos buscan las temporadas idóneas para realizarla. Por ejemplo, se espera que cada población del conejo castellano, Sylvilagus floridanus, ajuste su ciclo de vida para ...
Yury Gkebskiy +2 more
doaj +1 more source
Se aislaron larvas de tercer estadio de Physaloptera (Nematoda: Physalopteridae) del estómago de Lithobatesmontezumae (Anura: Ranidae) capturados en la Reserva Ecológica del Pedregal de San Ángel en la Ciudad de México(19º11’6.50” N, 99º11’41.42” O; 2 ...
María G. Velarde-Aguilar +2 more
doaj +1 more source
Psilotum complanatum Sw. en el Pedregal de San Ángel
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Carlos Galindo-Rosete +1 more
doaj +1 more source
Un estudio a largo plazo de la flora algal en lagos urbanos
La flora de algas en los lagos y arroyos de la Cantera Oriente de la Reserva Ecológica del Pedregal de San Ángel de la UNAM ha sido monitoreada durante 14 años.
Eberto Novelo +2 more
doaj +1 more source
Abstract This study analyzed the physical mechanisms behind a multiday high surface ozone (O3) event in Mexico City in March 2016. In early March, a strong zonal jet stream over the Pacific Ocean amplified and underwent wave breaking. An unusual cutoff low pressure system then migrated across central Mexico, with 200‐hPa geopotential heights among the ...
Bradford S. Barrett +3 more
wiley +1 more source
Mycoflora in Exhumed Seeds of Opuntia tomentosa and Its Possible Role in Seed Germination
The funicular cover of the Opuntia tomentosa seed limits imbibition; germination occurs only when the funicle is weakened or the funicular valve is removed. We investigated the role of fungi in funicular weakening and seed germination. Seeds that had been either buried in one of two sites or stored in the laboratory were germinated with and without a ...
María Esther Sánchez-Coronado +8 more
wiley +1 more source
Se evaluó la riqueza vegetal y el valor de conservación de tres zonas incorporadas recientemente a la Reserva Ecológica del Pedregal de San Ángel: dos añadidas a la zona núcleo suroriente (SO 1 y S02) y el área de amortiguamiento A13.
Zenón Cano-Santana +3 more
doaj +1 more source
Index of Authors and Co‐Authors
United European Gastroenterology Journal, Volume 10, Issue S8, Page 1093-1126, October 2022.
wiley +1 more source
Estudios cromosómicos en seis especies mexicanas de comelináceas
Se determinaron los números cromosómicos (2n) y se elaboraron los cariotipos de Tradescantia crassifolia Cav. subsp. acaulis (Martens y Galeotti) D. Hunt, Gibasis shiedeana (Kunth) D. Hunt, Cymbispatha commelinoides (Shult.
Guadalupe Palomino-Hasbach +3 more
doaj +1 more source
Biochemistry in Symptomatic and Asymptomatic Primary Hyperparathyroidism: A Cross-Sectional Study
Background: PHPT can be symptomatic or asymptomatic, according to the presence of classic symptoms (skeletal or renal involvement), without conclusive evidence of its relation to biochemical parameters.
Tania K. Cázares Robles +4 more
doaj +1 more source

