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Sandpipers are more geared towards tactile foraging methods than the plovers, which favour more visual foraging methods, and this is reflected in the high density of tactile receptors in the tips of their bills. These receptors are housed in a slight horny swelling at the tip of the bill (except for the surfbird and the two turnstones). Bill ...
Group foraging can thus reduce an animal's foraging payoff. [27] Group foraging may be influenced by the size of a group. In some species like lions and wild dogs, foraging success increases with an increase in group size then declines once the optimal size is exceeded. A myriad number of factors affect the group sizes in different species.
The common sandpiper (Actitis hypoleucos) is a small Palearctic wader. This bird and its American sister species , the spotted sandpiper ( A. macularia ), make up the genus Actitis . They are parapatric and replace each other geographically; stray birds of either species may settle down with breeders of the other and hybridize .
Optimal foraging theory has been used to predict animal behaviour when searching for food, but can also be used for humans (specifically hunter-gatherers). Food provides energy but costs energy to obtain. Foraging strategy must provide the most benefit for the lowest cost – it is a balance between nutritional value and energy required.
These 98 species of sandpipers and allies in the family Scolopacidae are recognized by the International Ornithological Committee (IOC). In addition to the species directly called "sandpiper", the family includes curlews, godwits, stints, snipes, and a few other groups.
Calidris is a genus of Arctic-breeding, strongly migratory wading birds in the family Scolopacidae.These birds form huge mixed flocks on coasts and estuaries in winter. Migratory shorebirds are shown to have decline in reproductive traits because of temporal changes of their breeding seaso
Control fence to assess the impact of browsing by ungulates – outside the fencing, there is a lack of natural forest regeneration. Overbrowsing occurs when overpopulated or densely-concentrated herbivores exert extreme pressure on plants, reducing the carrying capacity and altering the ecological functions of their habitat.
The bar-tailed godwit (Limosa lapponica) is a large and strongly migratory wader in the family Scolopacidae, which feeds on bristle-worms and shellfish on coastal mudflats and estuaries.