Results 31 to 40 of about 1,001 (185)

Ants disperse seeds farther in habitat patches with corridors

Ecosphere, 2022
Habitat fragmentation impacts ecosystems worldwide through habitat loss, reduced connectivity, and edge effects. Yet, these landscape factors are often confounded, leaving much to be investigated about their relative effects, especially on species ...
Melissa A. Burt, Julian Resasco, Nick M. Haddad, Susan R. Whitehead   +3 more
doaj   +1 more source

Dispersal of non-myrmecochorous plants by a >keystone disperser> ant in a Mediterranean habitat reveals asymmetric interdependence [PDF]

, 2012
In contrast to other plant-animal mutualisms, seed dispersal interactions, and particularly seed dispersal by ants, are generally considered asymmetric, non-specialized relationships in which dispersers depend less on plants than vice versa.
Barroso, Ángel, Amor, Fernando, Cerdá, Xim, Boulay, Raphaël   +3 more
core   +1 more source

Ant species that remove diaspores alone are more efficient removers

Sociobiology, 2022
Secondary diaspore removal on the ground is an important ecosystem process. In this process, solitary foraging ants with larger body sizes are more efficient because they may remove more diaspores, faster and carry them at greater distances.
Icaro Wilker, Mariana A. Rabelo, Marina A. Angotti, Carla R. Ribas   +3 more
doaj   +1 more source

Questioning the mutual benefits of myrmecochory: a stable isotope‐based experimental approach [PDF]

Ecological Entomology, 2013
Mutualisms play a key part in ecological systems and drive the evolution of much of the world's biological diversity. Among them, myrmecochory, seed dispersal by ants, is a worldwide mechanism throughout many ecosystems.
Caut, Stéphane, Jowers, Michael J., Cerdá, Xim, Boulay, Raphaël   +3 more
openaire   +2 more sources

Opening myrmecochory's black box: what happens inside the ant nest?

Ecological Research, 2010
Abstract In the process of seed dispersal by ants (myrmecochory), foragers bring diaspores back to their nest, then eat the elaiosome and usually reject viable seeds outside the nest. Here, we investigate what happens inside the nest, a barely known stage of the myrmecochory process, for two seed species (
Servigne, Pablo, Detrain, Claire
openaire   +2 more sources

The role of insects in pollination and dissemination of some plant species in high-mountains of the Ukrainian Carpathians

Біологічні студії, 2016
On the example of 5 species of herbaceous flowering plants of the Ukrainian Carpathians it is shown that they are in close relationships with a number of insects, some of which are involved into pollination and hence in the formation of mature seeds.
O. S. Sachok, I. J. Tsaryk
doaj   +1 more source

Fruit and seed structural characteristics and seed dispersal in Mercurialis annua L. (Euphorbiaceae)

Acta Societatis Botanicorum Poloniae, 2014
The fruit of Mercurialis annua L. is a two-seeded capsule with a caruncle, a small appendage which arises from the outer integument in the micropylar area. The inner integument has a thick layer of Malpighian-like cells, interrupted at the micropyle by a
Marcello Lisci, Ettore Pacini
doaj   +1 more source

Extreme fire severity interacts with seed traits to moderate post-fire species assemblages. [PDF]

Am J Bot
Abstract Premise Climate change is globally pushing fire regimes to new extremes, with unprecedented large‐scale severe fires. Persistent soil seed banks are a key mechanism for plant species recovery after fires, but extreme fire severity may generate soil temperatures beyond thresholds seeds are adapted to.
Sano M, Tangney R, Thomsen A, Ooi MKJ.
europepmc   +2 more sources

Does Atta laevigata (Smith, 1858) act as Solanum lycocarpum seed dispersers?

Sociobiology, 2016
Ants can act as seed dispersers, modifying their distribution, affecting the reproductive success and the vegetation spatial structure. The leaf-cutting ants function, as dispersers of non-myrmecochorous plants, is little known.
Paulo Roberto de Abreu Tavares, Valter Vieira Alves Junior, Glaucia Almeida de Morais   +2 more
doaj   +1 more source

Adaptive advantages of myrmecochory: the predator‐avoidance hypothesis tested over a wide geographic range [PDF]

Ecography, 2005
The predator‐avoidance hypothesis states that once released from the parent plant, myrmecochorous seeds are rapidly taken by ants to their nests, where they are protected from predators. Previous studies conducted to test this hypothesis have frequently neglected two major aspects necessary for its verification: 1) the influence of
Antonio J. Manzaneda, Jose M. Fedriani, Pedro J. Rey   +2 more
openaire   +3 more sources