Results 31 to 40 of about 283 (121)

Remoción de Semillas en Hábitats Transformados: Pogonomyrmex barbatus (Hymenoptera: Formicidae) y Cinco Especies de Cactáceas del Centro de México

open access: yesSociobiology, 2014
One of the main consequences of human activities in semiarid zones is the transformation of habitats. In this work we studied the effect of this transformation on seed removal of five cacti species by the harvester ant Pogonomyrmex barbatus in the ...
Leticia Ríos-Casanova   +2 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

El cardón Pachycereus pringlei, nuevo hospedero para Scyphophorus acupunctatus (Coleoptera: Curculionidae) en Baja California Sur, México

open access: yesRevista Mexicana de Biodiversidad, 2014
Se presenta el primer registro de una cactácea, Pachycereus pringlei (cardón), especie dominante del matorral xerófilo de la península de Baja California, como hospedero de Scyphophorus acupunctatus (picudo del agave). A partir de observaciones y la
Yolanda Maya Delgado   +2 more
doaj   +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

Phytotoxic and dissuasive activity of Chihuahua desert plants

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2020
With the purpose of finding plant compounds with the potential use as herbicides and insecticides, a research was realized with the objective of evaluate the phytotoxic and dissuasive activity of four Chihuahua desert plants.
Ramona PEREZ-LEAL   +6 more
doaj   +1 more source

Una Nueva Especie de Pachycereus (Cactaceae) del Occidente de México

open access: yesNovon, 1998
Pachycereus tepamo (Cactaceae, Cactoideae, Pachycereeae), a new species from the lower basin of the Balsas River, in the state of Michoacin, Mexico, is described and illustrated. Information concerning its habitat, geographic distribution, and uses is also presented. In addition, morphological characters are used to compare this species with P grandis,
Susana Gama-López   +2 more
openaire   +2 more sources

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

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

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