Answers for “Collecting ant specimens” With explanations

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Question 27-30:
27. TRUE (para 1, line 5-8: “of the collections. For taxonomy, or classification, long series,
from a single nest, which contain all castes (workers, including majors and minors, and, if
present, queens and males) are desirable, to allow the determination of variation within
species”)

28. NOT GIVEN

29. TRUE (para 1, line 8-10: “determination of variation within species. For ecological
studies, the most important factor is collecting identifiable samples of as many of the
different species present as possible”)

30. FALSE (para 1, last 4 lines: “are not always compatible. The taxonomist sometimes
overlooks whole species in favour of those groups currently under study, while the
ecologist often collects only a limited number of specimens of each species, thus
reducing their value for taxonomic investigations.”)

Question 31-36:
31. A (para 2, line 3-7: “ants, ground litter sampling, and the use of pitfall traps. Hand
collecting consists of searching for ants everywhere they are likely to occur. This
includes on the ground, under rocks, logs or other objects on the ground, in rotten wood
on the ground or on trees, in vegetation, on tree trunks and under bark”)

32. C (para 4, first 2 lines: “Many ants are small and forage primarily in the layer of leaves
and other debris on the ground. Collecting these species by hand can be difficult.”)

33. B (para 3, first 3 lines: “Baits can be used to attract and concentrate foragers. This often
increases the number of individuals collected and attracts species that are otherwise
elusive”)

34. D (para 5, line 11-13: “the traps will dry out. One advantage of pitfall traps is that they
can be used to collect over a period of time with minimal maintenance and intervention”)

35. A (para 2, line 7-8: “tree trunks and under bark. When possible, collections should be
made from nests or foraging columns and at least 20 to 25 individuals collected”)

36. D (para 5, line 9-11: “the study being undertaken. The preservative used is usually
ethylene glycol or propylene glycol, as alcohol will evaporate quickly and the traps will
dry out.”)

Question 37-40:
37. Heat
38. Leaf litter
39. Screen
40. Alcohol
(para 4, line 5-8: “This is most commonly done by placing leaf litter on a screen over a
large funnel, often under some heat. As the leaf litter dries from above, ants (and other
animals) move downward and eventually fall out the bottom and are collected in alcohol
placed below the funnel.”)

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