Results 31 to 40 of about 1,629 (192)

Shrubs indirectly increase desert seedbanks through facilitation of the plant community [PDF]

open access: yes, 2019
The mechanisms supporting positive ecological interactions are important. Foundation species can structure desert biodiversity by facilitating seedbanks of annual plants, but the direct and indirect mechanisms of shrub effects on seedbank have not been ...
Filazzola, Alessandro   +3 more
core   +2 more sources

Grazing Impact on Plant Seed Production in Southern Mongolia [PDF]

open access: yesMongolian Journal of Biological Sciences, 2008
Nomadic livestock husbandry practices have a long history in Mongolia and still represent the main form of land use. Because of increasing livestock numbers, the danger of overgrazing and steppe degradation is on the rise. Nevertheless,
Christine Bläß   +3 more
doaj   +1 more source

The effect of insect herbivory on the growth and fitness of introduced Verbascum thapsus L. [PDF]

open access: yes, 2013
A majority of the plant species that are introduced into new ranges either do not become established, or become naturalized yet do not attain high densities and are thus considered ecologically and economically unproblematic. The factors that limit these
Alba, Christina   +3 more
core   +2 more sources

Hypercarnivorous apex predator could provide ecosystem services by dispersing seeds [PDF]

open access: yes, 2016
Large ?hypercarnivorous? felids are recognized for their role as apex predators and hence as key elements in food webs and ecosystem functioning through competition and depredation.
Costan, Andrea Silvina   +3 more
core   +1 more source

Body size, granivory and seasonal dietary shifts in desert gerbilline rodents [PDF]

open access: yesFunctional Ecology, 1997
1. Desert gerbilline rodents consume mainly plant material, in particular seeds. However, seeds are less available following winter rains than in summer and many rodents shift their diets from predominantly seeds to ones containing more vegetation.
A. A. DEGEN   +3 more
openaire   +1 more source

Spatial and temporal dynamics of two cacti seed banks in a xerophytic shrubland in Mexico City

open access: yesBotan‪ical Sciences, 2021
Background: Soil and aerial seed banks directly affect recruitment in plant populations. Soil banks result as the balance between seed inputs and outputs. Seed bank dynamics vary by species and environmental conditions.
Itzel Guzmán-Vázquez   +3 more
doaj   +1 more source

Investigating the Ecology of the Mound-Building Ant, \u3ci\u3eAcanthomyops Claviger\u3c/i\u3e (Hymenoptera: Formicidae), in Re-Created Prairie [PDF]

open access: yes, 2018
Acanthomyops claviger (Roger) (Hymenoptera: Formicidae) forms conspicuous mounds within clumps of big bluestem, Andropogon gerardii, and prairie dropseed, Sporobolus heterolepsis, within a re-created tallgrass prairie in northeastern Illinois. This study
Krstic, Ana   +4 more
core   +2 more sources

Effect of weed patch size on seed removal by harvester ants

open access: yesJulius-Kühn-Archiv, 2014
In dryland cereals in North-eastern Spain, the harvester ant, Messor barbarus L., is responsible for removal of a large proportion of the newly produced weed seeds (40-100%).
Westermann, Paula R.   +2 more
doaj   +1 more source

Contrasting effects of grazing on the early stages of woody encroachment in a Neotropical savanna

open access: yesBasic and Applied Ecology, 2022
Woody encroachment in savannas represents an ecological process of current global interest given its negative impact on ecosystem functioning, particularly on forage production.
Lucía S. Mochi   +3 more
doaj   +1 more source

Plant density can increase invertebrate postdispersal seed predation in an experimental grassland community [PDF]

open access: yes, 2016
Janzen–Connell effects are negative effects on the survival of a plant’s progeny at high conspecific densities or close to its conspecifics. Although the role of Janzen–Connell effects on the maintenance of plant diversity was frequently studied, only ...
Dudenhöffer, Jan-Hendrik   +3 more
core   +1 more source

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