Human activities have led to global simplification of ecosystems, among which Neotropical dry forests are some of the most threatened. Habitat loss as well as edge effects may affect insect communities. Here, we analyzed ...

Forest edges have been long recognized as the first landscape elements to be invaded by alien plant species in forest ecosystems. However, little is known about the role of forest edge type in invasive species patterns. ...

The aquatic communities of headwater streams are highly influenced by the surrounding matrix. The edge effects of forest fragments are known to influence terrestrial communities; however, their influence on aquatic communities ...

The first part of this thesis concerns monochromatic cycle partitions. We make the following three contributions. Our first result is that for any colouring of the edges of the complete bipartite graph $K_{n,n}$ with 3 ...

Large-scale agricultural production in Brazil preferentially occupies plateaus reclaimed from areas originally covered by Cerrado (savanna). Depending on the region, a percentage of the pristine vegetation coverage must ...

The influence of the landscape context on weed communities in farmland has been investigated mostly in temperate regions, while there is a paucity of information for the Neotropics. The aim of this study was to estimate ...