pitfall trap造句

• The pitfall trap has evolved independently in at least two other groups.
• Some cave paintings show woolly mammoths in structures interpreted as pitfall traps.
• "Nepenthes rajah " is a carnivorous plant of the pitfall trap variety.
• Pitfall traps are mainly used for ecology studies and ecologic pest control.
• Animals that enter a pitfall trap are unable to escape.
• Specimens are usually retrieved from leaf litter samples but also occur in pitfall traps.
• They are assisted by a gypsy boy, Pablo, who they rescue from a pitfall trap.
• Pitfall traps are derived from rolled leaves, which evolved several independent times through convergent evolution.
• A "'pitfall trap "'is a trapping pit for small animals, such as insects, amphibians and reptiles.
• Individuals have only been obtained in pitfall traps, captured by hand, or obtained from local hunters.
• They are difficult to find other than when encountered in leaf litter samples or pitfall traps.
• The females apparently live in animal burrows and the males wander and are often caught in pitfall traps.
• It also differs from other passive trapping mechanisms such as those of the pitfall traps of pitcher plants.
• The colony is believed to be in decline, based on unpublished data and declining results of pitfall trap surveys.
• The cave has a large hole in the roof and is believed to have been used as a pitfall trap.
• A passive trap, pitfall traps attract prey with nectar bribes secreted by the peristome and bright flower-like anthocyanin patterning within the pitcher.
• The Queensland Dung Beetle project used pitfall traps at sites across Queensland to trap dung beetles, which were then identified and recorded.
• Another potential protocarnivorous pitfall trap is a species of teasel, " Dipsacus fullonum ", which has been only suggested as a possible carnivore.
• For example, in the R韔 Toachi forest of Ecuador " Tatuidris " specimens tend to fall in pitfall traps, instead of Winkler sacs.
• The most recent estimate, backed by archeological findings of pitfall traps as well as by geographical observations, was presented in a 2012 article by J髇as Kristj醤sson.