Results 21 to 30 of about 614 (154)

Post-dispersal seed predation in the hedgerows of agroecosystems in southern Chile

open access: yesGayana, 2020
Agricultural ecosystems host a large variety of organisms that can contribute to weed control through seed consumption. However, seed consumption rates in the agroecosystems of southern Chile are virtually unknown.
Alberto G. Gantz, Carlos E. Valdivia
doaj   +1 more source

Suppression of weed communities by granivores over time in an agroecosystem

open access: yesEcosphere, 2023
Invertebrate granivore communities can consume numerous weed seeds in cropland, but how this granivory influences weed recruitment over time in continuous no‐till systems is unknown.
Jonathan G. Lundgren, Randy L. Anderson
doaj   +1 more source

Lepidopteran Granivory Reduces Seed Counts in a Rare Species of Riparian Scour Prairies [PDF]

open access: yes, 2021
In Pennsylvania Baptisia australis var. australis is found along only four waterways: the Allegheny River, Youghiogheny River, Clarion River, and Red Bank Creek.
McDonnell, Angela J.   +3 more
core   +1 more source

Effects of latitude and plant relative abundance on predispersal granivory

open access: yes, 2021
We examined predispersal granivory in common and rare bird-dispersed plants in two tropical and two temperate communities. Our results show that the prevalence and intensity of predispersal granivory are higher in tropical communities and for smaller ...
Amico, Guillermo Cesar   +15 more
core   +1 more source

Phenotypic similarity between fruits of Gevuina avellana (Proteaceae) and wasp-induced galls of Nothofagus dombeyi (Nothofagaceae) does not protect fruits from predation by rodents

open access: yesActa Botânica Brasílica, 2018
Fruits of Gevuina avellana (Proteaceae) seem to mimic wasp-induced galls of Nothofagus dombeyi (Nothofagaceae) to escape predation by rodents, which may change both spatially and temporarily.
Gabriela A.E. López-Colin   +4 more
doaj   +1 more source

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

Burial-induced changes in the seed preferences of carabid beetles (Coleoptera: Carabidae)

open access: yesEuropean Journal of Entomology, 2019
Seeds of many species of plants may survive for a long time in the soil and germinate when brought to the surface, but whether they are subsequently eaten by seed predators is unknown. We examined the preferences of three species of carabids (Coleoptera:
Pavel SASKA   +3 more
doaj   +1 more source

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

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

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

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