Results 31 to 40 of about 998 (184)
In this study, I tested the efficacy of ants as secondary seed dispersers of Ricinus communis in southeastern Brazil. In a natural population of 143 individuals, I determined the ballistic dispersal distance for 62 seeds and 100 additional seeds were ...
Mário Marcos do Espírito Santo
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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
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Questioning the mutual benefits of myrmecochory: a stable isotope‐based experimental approach [PDF]
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 +3 more
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Fruit and seed structural characteristics and seed dispersal in Mercurialis annua L. (Euphorbiaceae)
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
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Extreme fire severity interacts with seed traits to moderate post-fire species assemblages. [PDF]
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
Opening myrmecochory's black box: what happens inside the ant nest?
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
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Does Atta laevigata (Smith, 1858) act as Solanum lycocarpum seed dispersers?
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 +2 more
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Morphological and chemical attributes of diaspores in myrmecochorous plants have been shown to affect seed dispersal by ants, but the relative importance of these attributes in determining seed attractiveness and dispersal success is poorly understood ...
Chelsea N. Miller +2 more
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The Importance of Poneromorph Ants for Seed Dispersal in Altered Environments
Changes in species composition and an increase in the probability of local or regional extinctions alone are considered alarming consequences of human disturbances. However, these changes bring other damages that have passed unnoticed by scientists, such
Fabio Souto Almeida +2 more
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Taxonomic composition and ecological characteristics of the endemic flora of the lower Duero Basin (Iberian Peninsula) [PDF]
The taxonomical composition and an analysis of four ecological characteristics of the 46 endemic species occurring in the lower Duero Basin (CW Iberian Peninsula) have been made.
Aguiar, Carlos +4 more
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