Results 11 to 20 of about 55,210 (181)

Tree damage, growth and phenology after a hurricane in a tropical dry forest in Veracruz

open access: yesRevista Mexicana de Ciencias Forestales, 2021
As a major disturbance, hurricanes affect growth and phenology of trees. Tree diameters were annually measured for three years, and the phenology of 16 tree species monthly recorded in a seasonally dry tropical forest in Veracruz, Mexico, when on ...
Guadalupe Williams-Linera   +2 more
doaj   +1 more source

Abejas silvestres visitantes florales de Salvia assurgens (Lamiaceae): aportes a la ecología de la polinización de una salvia mexicana endémica de flores blancas

open access: yesActa Botanica Mexicana, 2021
Antecedentes y Objetivos: Según su arquitectura floral, Salvia assurgens (salvia con flores blancas) ha sido considerada como especie melitófila. Sin embargo, no existen datos empíricos que apoyen la asignación a dicho síndrome de polinización.
Carlos Andres Cultid-Medina   +2 more
doaj   +1 more source

Apis mellifera en México: producción de miel, flora melífera y aspectos de polinización. Revisión

open access: yesRevista Mexicana de Ciencias Pecuarias, 2022
La abeja de la miel, Apis mellifera, es una especie que, desde su introducción a México, ha tenido una gran importancia social, cultural y económica, representando una importante fuente de ingreso para miles de familias que practican la apicultura.
Fernanda Baena-Díaz   +3 more
doaj   +1 more source

Chlorophyll fluorescence and biomass partitioning within light and nitrogen deficiency: An example of the use of the R programming language for teaching

open access: yesCuadernos de investigación UNED, 2020
Introduction: Chlorophyll Fluorescence (Fv/Fm) detects damage in photosystem II (PSII) in plants exposed to stress (biotic and/or abiotic). Objective: In this context, Fv/Fm for the diagnosis of the effect of N deficiency and light in tomato plants ...
Junior Pastor Pérez-Molina   +4 more
doaj   +1 more source

Composición florística de un bosque mesófilo del centro de Veracruz, México

open access: yesBotan‪ical Sciences, 2008
En la región centro de Veracruz existen fragmentos de bosque mesófilo de montaña (BMM) que no se han explorado. Nosotros estudiamos la composición florística y algunos aspectos de la estructura de un BMM en la localidad de La Cortadura.
José G. García-Franco   +4 more
doaj   +1 more source

Microbially Mediated Chemical Ecology of Animals: A Review of Its Role in Conspecific Communication, Parasitism and Predation

open access: yesBiology, 2021
Microbial symbionts are nowadays considered of pivotal importance for animal life. Among the many processes where microorganisms are involved, an emerging research avenue focuses on their major role in driving the evolution of chemical communication in ...
Mónica Mazorra-Alonso   +2 more
doaj   +1 more source

Pollution and physiological variability in gentoo penguins at two rookeries with different levels of human visitation [PDF]

open access: yes, 2013
Fil: Barbosa, Andres. Departamento Ecología Evolutiva. Museo Nacional de Ciencias Naturales. CSIC. Madrid; EspañaFil: De Mas, Eva. Departamento Ecología Funcional y Evolutiva. Estación Experimental de Zonas Áridas. CSIC.
Barbosa, Andres   +11 more
core   +1 more source

Evaluación de métodos no paramétricos para la estimación de riqueza de especies de plantas leñosas en cafetales

open access: yesBotan‪ical Sciences, 2006
Los cafetales, como parte del paisaje, contribuyen a la diversidad regional de especies leñosas. La riqueza de árboles fue evaluada en ocho fincas cafetaleras activas y abandonadas, y se comparó la riqueza observada o muestreada con la riqueza estimada ...
Ana María López-Gómez   +1 more
doaj   +1 more source

Overwinter users of nest cavities affect breeding birds via nest‐dwelling ectoparasites

open access: yesEcosphere, 2023
Cavities used for avian reproduction in spring often host other organisms for roosting during winter, which should affect their microclimatic conditions and, then, the patterns of emergence of nest‐dwelling ectoparasites of birds and successful ...
Antonio José García‐Núñez   +4 more
doaj   +1 more source

Warmer Temperature and Spatiotemporal Dynamics during Primary Succession on Tropical Coastal Dunes

open access: yesPlants, 2022
Coastal dunes are sensitive indicators of climate change: it is expected that higher precipitation and warmer temperature will promote vegetation growth and sand stabilization.
M. Luisa Martínez   +3 more
doaj   +1 more source

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