Davi de Lacerda Ramos
A5065858395- Plant and animal studies
- Insect and Pesticide Research
- Insect and Arachnid Ecology and Behavior
- Plant Parasitism and Resistance
- Ecology and Vegetation Dynamics Studies
- Land Use and Ecosystem Services
- Insect-Plant Interactions and Control
- Insect behavior and control techniques
- Animal and Plant Science Education
Universidade de Brasília
2018-2025
Brazilian Agricultural Research Corporation
2023-2024
Universidade Católica de Brasília
2016
Human land use threatens global biodiversity and compromises multiple ecosystem functions critical to food production. Whether crop yield-related services can be maintained by a few dominant species or rely on high richness remains unclear. Using database from 89 studies (with 1475 locations), we partition the relative importance of richness, abundance, dominance for pollination; biological pest control; final yields in context ongoing land-use change. Pollinator enemy directly supported...
ABSTRACT Human land use threatens global biodiversity and compromises multiple ecosystem functions critical to food production. Whether crop yield-related services can be maintained by few abundant species or rely on high richness remains unclear. Using a database from 89 systems, we partition the relative importance of abundance for pollination, biological pest control final yields in context on-going land-use change. Pollinator enemy directly supported independent abundance. Up 50%...
Abstract Seventy five percent of the world's food crops benefit from insect pollination. Hence, there has been increased interest in how global change drivers impact this critical ecosystem service. Because standardized data on crop pollination are rarely available, we limited our capacity to understand variation benefits yield, as well anticipate changes service, develop predictions, and inform management actions. Here, present CropPol, a dynamic, open, database It contains measurements...
Stingless bees (Apidae, Meliponini) comprise a group of eusocial with great potential for use in greenhouse pollination. However, low light and increased temperature these protected systems can compromise bee performance. This study evaluated the effect reduced incidence intensity spectral range ultraviolet (∼ 345 nm) green 540 on acclimation foraging behaviour three tropical stingless species (Melipona quadrifasciata, Frieseomelitta varia, Scaptotrigona cf. postica) experimental arenas. For...
The demand for insect-pollinated crops is increasing. Conventional agricultural intensification heavily relies on increased input of fertilizers, which can have negative effects local biodiversity. Such may be particularly accentuated in biodiversity hotspots that are naturally nutrient-poor. Ecological farming, i.e. practices increase production through the ecosystem services, emerges as an alternative to conventional intensification. For example, boost abundance and diversity crop...
Large floral displays favour pollinator attraction and the import export of pollen. However, large also have negative effects, such as increased geitonogamy, pollen discounting nectar/pollen robber attraction. The size display can be measured at different scales (e.g. flower, inflorescence or entire plant) variations in one these may affect behaviour flower visitors ways. Moreover, fragmentation natural forests visitation rates visitor behaviour. In present study, video recordings...
Abstract The use of Meliponini for crop pollination in protected environments is practically non-existent. One the reasons difficulty acclimatizing to temperature and light conditions inside greenhouses. We investigated how materials used greenhouses, which filter different intensities ultraviolet (UV) light, affect foraging behaviors, flight orientation, attraction walls ceilings, mortality Scaptotrigona cf. postica (Letreille, 1807), Frieseomelitta varia (Lepeletier, 1836), Melipona...
Abstract We evaluated how ultraviolet (UV) and green light in the solar spectrum, as well temperature, affected proportion latency of phototactic choice for three distinct stingless bee species within a Y-shaped maze. showed that all studied chose edges with higher incidence UV more often shorter latencies than other edges. Under conditions low at both ends maze, neither nor total intensity impacted orientation bees towards particular maze arm. The Frieseomelitta varia did not change...