Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Entm 1000 > week 2 > Flashcards

week 2 Flashcards

1
Q

what makes insects so dominant

A

numerical dominance, wide distribution, reproductive potential, long evolutionary history

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

how many species are insects

A

53%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

how many animals are insects

A

75%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

how many described insect species

A

1 mil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

how many estimated insect species

A

2-10 mil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

how many ants per person

A

1.6 mil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

how many locusts in swarm

A

1 bil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

how much more insect biomass than vertebrate in brazilian rainforest

A

9 times more

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

1 out of how many animal species is a beetle

A

4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what is most diverse family of animals

A

rove beetles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

how many rove beetle species

A

61000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what percent of all biomass is arthropods

A

42%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

how many total insects

A

10 quintillion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

5 hospitibal places insects found

A

Lightless caves
Petroleum fields
Floating algal mats in ocean
40 species of flies in antarctica
Hot springs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what environment doesn’t contain many insects

A

ocean

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is interesting about termite queen

A

30000 eggs/day
live 12-20 yrs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

1 pair of house flies would result in how many after 5 months

A

190 quintillion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

single aphid from march to august would result in how much biomass

A

800 million tons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

how long insects been around

A

400 mil years

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

why have insects been so successful over history

A

small size, flight, exoskeleton

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what do insects decompose

A

plants, other organic matter, dead bodies, feces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

how is insect decomposition beneficial

A

improves soil condition, animal decomp used in forensic investigations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

animals (especially insects) responsible for pollinating what percent of wild flowering plants

A

80%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

global insect pollination value for 100 most important commodity crops how much per year

A

250 bil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

who eats insects

A

animals in almost all terrestrial and freshwater aquatic ecosystems ( including humans)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

what is biomimetic technology

A

Incorporating insect builds in our own technology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

what are some natural products insects make

A

Silk
Honey
Beeswax
Propolis
Royal jelly
Venom
Medicinal value
Dyes
Shellac
Bioactive compounds
Resource insects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

why are insects good research subjects

A

Insects small
-Easy to maintain
High reproductive rates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

what areas of research are insects used in

A

Bioindicators
Ecology
Evolution
Toxicology
Genetics
Physiology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

what makes an insect a pest

A

Nuisances of humans, pets and livestock
Damage crops, forests, human homes/products/possessions
Transmit disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

what percent of insects are pests

A

1%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

what percent of insects serious pests

A

0.1%

33
Q

what can insects destroy / be pests to

A

agriculture and forestry
-Can destroy plant and fruit and transfer disease
Veterinary pests and human pests
Damage to buildings, stored food, fiber, manufactured products

34
Q

what insects are pests of agriculture and forestry

A

Planthopper
Aphids
Wheat midge
Forest tent caterpillar

35
Q

what are some Veterinary pests and human pests

A

Stable fly
Mosquito
Tick
Wasp

36
Q

what are 2 types of pest control

A

Natural predators and parasitoids
insecticide

37
Q

insect Decomposition of plant
and other organic
matter is a vitally
important _____

A

ecosystem service

38
Q

what is a parasitoid

A

insects who lay eggs inside of other insects which eventually kill the insect

39
Q

why is taxonomy important

A

forms foundation of all other studies of biology

40
Q

what is goal of taxonomists

A

knowing everything about data on species characteristics, natural history and nomenclature

Gather as much info on their own species as possible

41
Q

what is a species concept

A

philosophical idea of What a species is

42
Q

what is the biological species concept

A

If 2 individual in a population can mate and produce same offspring, they are species

Only works for sexual species

43
Q

what is species delimitation

A

Science of recognizing species
Finding boundaries of where one species ends and one begins

44
Q

what is species identification (specimen identification)

A

Assigning specimens/individuals to an existing species name
Routine identification of specimens

45
Q

3 types of new species

A

new to us - found
new to the world - evolved
species concepts (what is a species)

46
Q

how do we classify insects and who does this

A

Classify them into increasingly specific groups

taxonomists do it

47
Q

some important insect grouping names

A

Phylum
Class
Order
Family
Genus
Species

48
Q

what type of insect grouping name always ends in oidea

A

Superfamily

49
Q

what type of insect grouping name always ends in idae

A

family

50
Q

what type of insect grouping name always ends in inae

A

subfamily

51
Q

what type of insect grouping name always ends in ini

A

tribe

52
Q

why should you use caution with common insect names

A

Don’t always have the same rules as scientific names
Can talk about 2 different species with same name
Names like fly and bug are used for insects in multiple orders
Not all common names neutral (may be offensive)

53
Q

how many words do most common family names have

A

2 words

54
Q

what does the common name containing a seperated common order name (eg. house fly) indicate about the insect

A

the insect is actually in that order

55
Q

what is the most under documented type of living things based on how many species they have

A

insects

56
Q

what do taxonomists keep track of

A

Specimens
-Maintenance of collection (historical record of biodiversity) typically role of taxonomists

Characteristics
-Study and comparison of species traits’

Literature
-Taxonomists read and keep track of old literature other biologists ignore
-Need to understand how our understanding of species changed over time

Names
-Taxonomists keep track of nomenclature, to ensure stable system of communication

57
Q

What is a taxonomists vast knowledge about a type of insect useful for

A

Invasive species identification

Species conservation
- knowing where insects are more widely distributed

agriculture
- need to distinguish pests and predators

medicine
- need to know what bit you and whats harmful

58
Q

where to find new species

A

Can go to remote areas and tropical rainforests
-Almost certain to find new species
Look closer to home
-Many undescribed species everywhere
Insect fossils and amber

59
Q

what are some basic tools for collecting insects

A

sweeping nets
aspirators
vile

60
Q

what are some tools for catching aquatic insects

A

Dip nets
D-nets
Dump into tray
Use pipettes, forceps to extract samples

61
Q

name 4 methods of collecting insects

A

Hand collecting
Beat sheeting
malaise trap
pitfall traps
cores and funnel traps
pan traps
black lighting
canopy fogging
emergence traps
trap nests

62
Q

what is beat sheeting

A

White or black depending on insect you want
Hit things and insects drop on sheet

63
Q

what is malaise trap

A

Flying insects
Insects hit panel and fly up into container
Kind of like tent

64
Q

what is pitfall trap

A

catches Ground crawling insects and arthropods
Hole with little plastic cup and collection inside
Rain cover

65
Q

what are core and funnel traps

A

catches Soil fauna
Throw soil and leaves into trap
Heat on top
Insects funnelled into bottom trap

66
Q

what are pan traps

A

Pan with water
insects go in
good for bottom of malaise trap

67
Q

why is black light useful for finding insects

A

White sheet behind
Scorpions florece

67
Q

what are trap nests

A

For bees and wasps
Let insects occupy themselves
good for finding parasites

67
Q

what is Canopy fogging

A

Beat net but with insecticide
good for getting insects high in trees

68
Q

can you find insects in snow

A

yes

69
Q

what are Emergence traps

A

funnel above water or soil
funnels insects emerging from water or soil into collection

70
Q

do people identify all the insects the collect? where do they go?

A

no, Not enough time or expertise
go into museums

71
Q

why are museum collections important

A

Reference collection
-Collection of biodiversity
-Repository for types
Teaching collection
Historical record
Wealth of undescribed species

72
Q

how do you know a species is undescribed

A

Expertise in taxon
-Need to know everything that is old

Taxonomic characters

Literature search

73
Q

what taxonomic characters do you use to know an insect is new

A

Morphological
-Different external or internal characters

Behavioral
-Eg. Different phenology, Different host

Genetic
-Different sequences

74
Q

what literature do you search to identify new species

A

Biodiversity heritage library
Greatly facilitated by databases
-taxapad, universal chalcidoidea database

75
Q

what are 2 types of key shape whats better

A

Fan shaped (best)
Comb shaped

76
Q

whats in a species description

A

Diagnosis
Synonyms
Material examined
Description
Physical description
Distribution
Variation
Etymology
Images & illustrations
Key to species

77
Q

who gets to name new species and what names can you use

A

Author of paper
Some rules, mostly based on good taste
Can’t use offensive name

Entm 1000 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions