Category Examples Flashcards
1
Q
Bacterium
A
- Streptomyces faecilis
- pheromones used to aggregate
- functional so they can mate and their resistance to antibiotics increases
- sender and receiver same
2
Q
Nudibranch (Navanax)
A
- lay down mucous trail for aggregation
- if attacked, changes substance to produce yellow alarm pheromone
- navenone: light sensitive and disintegrates quickly
3
Q
Barnacle (Balanus balanoides)
A
- airate eggs until spring
- when food is around release hatching pheromone prostaglandin
- settling pheromone, arthropodin, also used by adults to help eggs settle
4
Q
Blue Crab (Calinectes sapidus)
A
- pheromone is released in female urine to attract males
- male does mating dance and if accepted, carries female around until she molts and they can mate
5
Q
Dog tick (Dermacentor variabilis)
A
- attractant: 2, 6 dichlorophenol, attracts males and females of all species
- mounting: cholesteryl oleate, waxy and stays put after blood meal (not species specific)
- copulating: fa with 14, 16, 18, 20 C, species specific and differences in concentration
6
Q
Fowl tick (Argas persicus)
A
- aggregation: guanine
- if low humidity they come together to preserve moisture
- if high humdity they disperse
7
Q
Leafcutter ant (Atta)
A
- use trail pheromones to go out and bring back leaf pieces
- use leaves to cultivate fungus
- small ants ‘travel’ on leaves to prevent parasitic flies from laying eggs
- waxy coating of bacteria (antibiotics) used to control mold
- also use alarm pheromone when nest under attack
8
Q
Funnelweb Spiders
A
- males find females by following attractant pheromones
- males use pheromone to sedate female and allow copulation to take place
9
Q
Queen Butterfly (Danaus)
A
- male uses toxic compounds from plant to produce denaidone
- using male hairpins, brushes female antennae with 20%
- if she accepts, they mate and he transfers the rest (80%) to her
- she uses this to protect her eggs from being eaten
10
Q
European minnow (Phoxinus phoxinus)
A
- alarm system: H3O
- unstable in water, decomposes slowly
- located in outer layer of skin (mucus cells discharge alarm)
11
Q
Red-spotted newt
A
- female pheromone attracts males
- male pheromone increases female receptivity
- sexually motivated males release pheromone that gets rid of other males
12
Q
Red-bellied newt (Cynops pyrrhogastor)
A
- males produce female attractant sodefrin
- use tail to fan it towards female
13
Q
Goldfish (Carassius auratus)
A
- females produce steroidal hormone 17, 20 p
- released as eggs mature and acts as pheromone to increase milt production in males
- female produces prostaglandins during ovulation which acts as male attractant and initiates spawning
14
Q
Crested Auklet (Aethia cristatella)
A
- use pheromones in fragrant huddle
- able to distinguish each other, sex, age, sick, related
15
Q
King Cheetah and Dwarf Mongoose
A
- marking territory with urine
- let’s others know his fitness levels
- does hand stand to mark trees
