Identification Flashcards
What larvae has external gills?
salamander and newt
what larval species do not have external gills?
frogs
dorsal eyes (8)
WLPMGBAF (would let pete make garlilc bread after fucking)
- Wood frog
- Leopard frog
- Pickerel frog
- Mink frog
- Green frog
- Bullfrog
- American toad
- Fowler’s toad
Eyes lateral (4)
- Spring peeper
- Western/boreal chorus frog
- Grey treefrog
Only larval salamander (Ontario) that inhabits permanent lakes and rivers
mudpuppy
Use rocky flowing creeks as breeding habitat
Northern two-lined salamander
Restricted to the niagara peninsula
dusky salamander
External gills (4)
- spotted salamander
- ambystoma sp.
- four-toed salamander
- eastern newt
Breeding period for spring peeper
april - end of june
Breeding period for american toad
mid april - end of june
Breeding period northern leopard frog
mid april - mid july
Breeding period for pickerel frog
mid april - mid july
Breeding period for fowler’s toads
beginning of may - end of june
Breeding period for grey tree frog
start of may - end of june
Breeding period for mink frog
beginning of may - mid july
Breeding period for green frog
beginning of may - end of july
Breeding period for bullfrog
beginning of may - end of july
What is the rationale for conducting multiple surveys?
- not to over survey, may cause harm to habitat
- follow marsh monitoring program
- may cause harm to species
- only survey when wind is at 0 - 3
At what time of day should you conduct your call surveys?
- 1/2 hour past sunset to midnight
- wind 0-3 (if too strong you won’t be able to hear)
What is a key feature you can use to distinguish treefrog (Hyllidae) larvae from other larval anurans
- tree frogs have lalteral eye positions (side of the head)
- anurans have dorsal eye position
How can you distinguish larval anurans (frogs/toads) from larval caudates (salamanders) in Ontario?
- caudates have external gills
- anurans do not
2 pairs of species in Ontario that cannot be reliably distinguishable from one another in larval form
- Leopard frog and pickerel frog
- Blue spotted salamander and Jefferson salamander
