Results 11 to 20 of about 8,465 (156)

Murciélagos dispersores de semillas en gradientes sucesionales de la Orinoquia (San Martín, Meta, Colombia).

Acta Biológica Colombiana, 2017
La dispersión de semillas por fauna juega un papel fundamental en la reproducción vegetal. Los murciélagos son unos de los dispersores de semillas más importantes en los ecosistemas neotropicales.
Diego Casallas-Pabón, Nathaly Calvo-Roa, Rosario Rojas-Robles   +2 more
doaj   +4 more sources

Cinética de separación de Cu (II) por técnicas de flotación iónica, en celdas con dispersores flexibles

Revista de Metalurgia, 2010
Este estudio investiga y determina experimentalmente los parámetros cinéticos y el efecto de la modificación de las condiciones químicas e hidrodinámicas de las dispersiones aire-líquido, durante la separación de Cu (II) mediante técnicas de flotación ...
M. Reyes, F. J. Tavera, R. Escudero, F. Patiño, E. Salinas, I. Rivera   +5 more
doaj   +3 more sources

Recovery and Degradation Drive Changes in the Dispersal Capacity of Stream Macroinvertebrate Communities. [PDF]

Glob Chang Biol
Freshwater ecosystems across Europe are recovering unevenly despite restoration efforts, partly due to the limited ability of many species to disperse. Using a dataset of over 1300 time series, we found that improved ecological quality often leads to gains in macroinvertebrate species with strong dispersal capacities, while degrading sites lose these ...
Cano-Barbacil C, Sinclair JS, Welti EAR, Haase P.   +3 more
europepmc   +2 more sources

The need for carbon finance schemes to tackle overexploitation of tropical forest wildlife. [PDF]

Conserv Biol
Abstract Defaunation of tropical forests, particularly from unsustainable hunting, has diminished populations of key seed dispersers for many tree species, driving shifts in forest community composition toward small‐fruited or wind‐dispersed trees with low wood density. Such shifts can reduce aboveground biomass, prompting calls for overexploitation to
Milson CE, Lim JY, Ingram DJ, Edwards DP.   +3 more
europepmc   +2 more sources

Linking animal behaviour and tree recruitment: Caching decisions by a scatter‐hoarder corvid determine seed fate in a Mediterranean agroforestry system

Journal of Ecology, Volume 111, Issue 2, Page 400-411, February 2023., 2023
The consequences of seed caching for seedling early establishment are driven by a fine decision‐making process of the disperser. Magpies seemed to ponder the characteristics of the habitat and the seed itself to determine where and how to cache each nut. By doing so, magpies reinforced the quality of seed dispersal effectiveness, as they cached walnuts
Mercedes Molina‐Morales, Alexandro B. Leverkus, Gonzalo Albaladejo‐Robles, Loreto Martínez‐Baroja, Lorenzo Pérez‐Camacho, Pedro Villar‐Salvador, Salvador Rebollo, José María Rey‐Benayas, Jorge Castro   +8 more
wiley   +1 more source

Recruitment limitation in three large‐seeded plant species in a tropical moist forest

Biotropica, Volume 54, Issue 2, Page 418-430, March 2022., 2022
Recruitment limitation results from three mechanisms: (i) lack of seed sources (i.e., source limitation), (ii) failure of available seeds to reach recruitment sites (i.e., dispersal limitation), and (iii) failure of arrived seeds to establish at a location (i.e., establishment limitation).
Carol X. Garzon‐Lopez, Eduardo Medina Barcenas, Alejandro Ordoñez, Patrick A. Jansen, Stephanie A. Bohlman, Han Olff   +5 more
wiley   +1 more source

Fabricação de Dispersores de Álcool para o Município de Santana do Araguaia-PA

The Journal of Engineering and Exact Sciences, 2021
Considerando o surto de um novo coronavírus que assolou todo o mundo mudando a rotina de quase toda humanidade, a situação não foi diferente no município de Santana do Araguaia no interior do Pará. Como primeira atitude de conter um surto foram estabelecidas várias medidas de prevenção, que incluíam isolamento social e quarentena.
Franckeliny de Paula Sales Amaral, José Rubens Scantimburgo da Silva, Karoline Borges, Carlos Maviael de Carvalho, Leonardo Carlos Barbosa, Samuel da Silva Souza   +5 more
openaire   +2 more sources

El rol de Turdusfalcklandii (Aves: Passeriforme) como dispersor de plantas invasoras en el archipiélago de Juan Fernández [PDF]

Revista chilena de historia natural, 2013
La Reserva Mundial de la Biosfera, Archipielago de Juan Fernandez (33° S) presenta la flora insular con mayor endemismo m-2 en el mundo. Tres especies de arbustos introducidos invaden y desplazan la vegetacion nativa de Juan Fernandez, especialmente en la isla Robinson Crusoe.
Smith-Ramirez, Cecilia, Arellano, Gisella, Hagen, Erin, Vargas Gaete, Rodrigo Ignacio, Castillo, Jessica, MIRANDA, ALEJANDRO   +5 more
  +8 more sources

Waterbird seed‐dispersal networks are similarly nested but less modular than those of frugivorous birds, and not driven by functional traits

Functional Ecology, Volume 34, Issue 11, Page 2283-2291, November 2020., 2020
A free Plain Language Summary can be found within the Supporting Information of this article. Abstract Frugivory is widely recognized as vital for the dispersal of many plants. Moreover, plant species and their frugivorous dispersers form seed‐dispersal assemblages whose structure has important implications for the persistence and stability of the ...
Esther Sebastián‐González, Ádám Lovas‐Kiss, Merel B. Soons, Bas van den Broek, Andy J. Green, Colleen Seymour   +5 more
wiley   +1 more source

PREFERENCIAS ALIMENTARIAS Y POTENCIAL DISPERSOR DEL LAGARTO HERBIVORO PHYMATURUS FLAGELLIFER (TROPIDURIDAE) EN LOS ANDES [PDF]

Gayana (Concepción), 2005
La mayoria de los reptiles, especialmente los lagartos, son insectivoros u omnivoros, razon por la cual poco se sabe acerca del rol que juegan como dispersores de plantas. Phymaturus flagellifer es una lagartija andina saxicola y herbivora. De acuerdo a observaciones preliminares sobre su comportamiento y a estimaciones de su ambito de hogar, esta ...
Celedón-Neghme, Constanza, Salgado, Cristián R, Victoriano, Pedro F   +2 more
openaire   +2 more sources