Buscar
Mostrando ítems 1-10 de 1667
Forager abundance and its relationship with colony activity level in three species of South American Pogonomyrmex harvester ants
(Springer, 2013-02)
The proportion of foragers in ant colonies is a fairly constant species-specific characteristic that could be determined by intrinsic or extrinsic factors. If intrinsic factors are relevant, species with similar life history ...
Foraging behaviour of birds in an arid sand-dune scrubland in Argentina
(Csiro Publishing, 2005-12)
Studies of the foraging behaviour of birds allow exploration of the mechanisms that structure species assemblages. The major objective of this study was to describe relationships among various components of foraging behaviour ...
Sward structure and ingestive behavior of cows in tropical pastures managed under different forage allowances
(Arquivo Brasileiro Medicina Veterinaria Zootecnia, 2019-11-01)
This study evaluated how changing the structure of Brachiaria brizantha cv. Marandu pasture under different forage allowances (FA) of 4, 7, 10 and 13kg DM/100kg BW (body weight) affected animal behavior over a two-year ...
Feed intake, methane yield, and efficiency of utilization of energy and nitrogen by sheep fed tropical grasses
(Springer, 2021-11)
Forage allowance impacts dry matter (DM) intake and the use of nutrients by ruminants. The efficient use of protein and energy from pasture is related to better livestock performance and lower environmental impacts. The ...
Chemical composition, in vitro digestibility and gas production of Brachiaria managed under different forage allowances
(Pagepress Publ, 2014-01-01)
The objective of this study was to evaluate the chemical composition, in vitro digestibility, gas production and fermentation kinetics of three Brachiaria cultivars: Brachiaria brizantha cv. Marandu, Brachiaria brizantha ...
Spatio-Temporal Dynamics of Foraging Networks in the Grass-Cutting Ant Atta bisphaerica Forel, 1908 (Formicidae, Attini)
(Public Library Science, 2016-01-11)
Foraging networks are a key element for ant colonies because they facilitate the flow of resources from the environment to the nest and they allow the sharing of information among individuals. Here we report the results ...
Nectar source profitability influences individual foraging preferences for pollen and pollen-foraging activity of honeybee colonies
(Springer, 2019-03)
Abstract: Most foraging honeybees specialize in either pollen or nectar collection, although some do alternate between both resources. Little is known about this behavioral plasticity and the factors that control it. We ...
Diet overlap and foraging activity between feral pigs and native peccaries in the pantanal
(Public Library Science, 2015)
Inter-specific competition is considered one of the main selective pressures affecting species distribution and coexistence. Different species vary in the way they forage in order to minimize encounters with their competitors ...
Spatial analysis of foraging activity of the Polygynous Red Imported Fire Ant Solenopsis invicta (Hymenoptera: Formicidae)
(External Scientific Advisory Committe (ESAC), 2016)