Results 51 to 60 of about 1,583 (196)

Ordenación de las poblaciones silvestres de pitayo y cardón en la Cuenca de Sayula, Jalisco

open access: yesBotan‪ical Sciences, 1999
Se estudian las relaciones ecológicas existentes entre las poblaciones silvestres de "pitayo" y "cardón" e n la Cuenca de Sayula, Jalisco. Se utilizó un enfoque multivariable considerando tres conjuntos de variables explicatorias: físico-geográficas (FG)
Francisco Martín Huerta-Martínez   +3 more
doaj   +1 more source

An Aridamerican model for agriculture in a hotter, water scarce world

open access: yesPLANTS, PEOPLE, PLANET, Volume 2, Issue 6, Page 627-639, November 2020., 2020
Climate change is dramatically restructuring agriculture and damaging crops, food security, and human health, especially in deserts. To radically redesign food systems to buffer against climatic disruptions, we focus on agroecological function, human health, and community well‐being.
Gary Paul Nabhan   +13 more
wiley   +1 more source

Finding flowers in the dark: nectar-feeding bats integrate olfaction and echolocation while foraging for nectar [PDF]

open access: yesRoyal Society Open Science, 2016
Nectar-feeding bats depend mainly on floral nectar to fulfil their energetic requirements. Chiropterophilous flowers generally present strong floral scents and provide conspicuous acoustic echoes to attract bats.
Tania P. Gonzalez-Terrazas   +5 more
doaj   +1 more source

Morfo-anatomía de plántulas en especies de Pachycereeae: ¿hasta cuando son plántulas?

open access: yesBotan‪ical Sciences, 2011
Se describe y compara la morfo-anatomía de plántulas de la tribu Pachycereeae con el objetivo de establecer diferencias entre las fases del crecimiento inicial y establecimiento y distinguir así la diferenciación entre plántula e individuo juvenil.
Sofía Loza-Cornejo, Teresa Terrazas
doaj   +1 more source

Enhanced mycorrhization in four species of columnar cacti under the Sonoran Desert tree Olneya tesota

open access: yesBotan‪ical Sciences
Background: Columnar cacti survival in deserts occurs mainly under nurse plants, due to better conditions for germination and establishment, as greater humidity, and nutrient concentration.
Gabriela Blanco-Valenzuela   +4 more
doaj   +1 more source

Estudio ecológico y genético del cardón (Pachycereus pringlei) en el Desierto Sonorense

open access: gold, 2008
Pachycereus pringlei represents an interesting plant species for botanists, ecologists and “evolutionaryst”. It is noticeable how this plant species has become adapted to different environmental conditions along the peninsular, insular and continental territory.
Alfonso Medel‐Narváez
openalex   +3 more sources

Behavioral evolution accompanying host shifts in cactophilic Drosophila larvae

open access: yesEcology and Evolution, Volume 8, Issue 14, Page 6921-6931, July 2018., 2018
For insects living on plants, the shape and size of the plant should encompass its foraging environment and therefore affect behavior. Here, we show variation in locomotor and pupation behavior within and between species of cactophilic Drosophila that is related to the shape of the cactus they inhabit. Abstract For plant utilizing insects, the shift to
Joshua M. Coleman   +3 more
wiley   +1 more source

Cacti community structure in a tropical Mexican dry forest under chronic disturbance

open access: yesBotan‪ical Sciences, 2014
When agricultural lands in formerly dry forest are abandoned, chronic disturbance by livestock grazing and wood extraction may set back successional processes precluding older dry forest structure from be reached.
Luis Antonio Arias-Medellín   +2 more
doaj   +1 more source

Effect of temperature, scarification and calcium concentrations on the germination of Gymnocalycium schickendantzii (F.A.C. Weber) Britton & Rose (Cactaceae) [PDF]

open access: yes, 2011
Gymnocalycium schickendantzii (F.A.C. Weber) Britton & Rose (Cactaceae) es una especie endémica de Argentina. En la provincia de Mendoza las poblaciones de este cactus todavía no están siendo afectadas por las urbanizaciones y cultivos que ponen en ...
Méndez, Eduardo
core  

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