P. G. Vaz

Meta-analysis of livestock effects on tree regeneration in oak agroforestry systems

This study conducts a 33-year meta-analysis showing livestock negatively affects oak regeneration, with small livestock like sheep and goats having a stronger impact than mixed-size systems.

Grazing hinders seed dispersal during crop failure in a declining oak woodland

The paper examines how cattle grazing and crop failure affect acorn dispersal and seedling recruitment in cork-oak woodlands, finding grazing reduces dispersal distance while crop failure increases dispersal distance and seedling recruitment.

Carnivores cross irrigation canals more often through overpasses than through culverts

The paper compares carnivore crossing rates through irrigation canal culverts and overpasses, finding overpasses are more effective in facilitating crossings.

Heavily burned wood from wildfires is less likely to provide functionality in streams

This study examines how burning level and season affect stream wood functions post-fire, finding heavily burned wood is less likely to provide substrate for aquatic biota.

Endozoochory of a dry fruited tree aids quarry passive restoration and seed soaking further increases seedling emergence

The paper examines how carnivore-mediated endozoochory and seed soaking affect seedling emergence in quarry restoration, finding that endozoochorous carob seeds perform similarly to untreated seeds and soaking improves emergence.

Unravelling associations between tree seedling performance, herbivory, competition, and facilitation in high nature value farmlands

The paper investigates how herbivory, competition, and facilitation affect oak seedling performance in Mediterranean agroforestry systems, finding unexpected positive associations between herbivory and seedling growth and survival.