Species At Risk

COSSARO Candidate Species – Meeting Results

Status Reports and COSSARO Evaluations


Species Status Reports and COSSARO Evaluations are an important part of the assessment process. COSSARO reviews these detailed technical documents that contain information such as the habitat needs of a species, population size, and threats to the species.

May — June 2011 COSSARO Meeting

 Barn Swallow
Barn Swallow (PDF, 59kB) (Hirundo rustica)
threatened
TBD
Blanchard's Cricket Frog (Northern Cricket Frog)
endangered
This species is an excellent swimmer and is capable of leaping up to almost two metres in a single jump to escape predators.
Dwarf Lake Iris
Dwarf Lake Iris (PDF) (Iris lacustris)
threatened
TBD
Eastern Meadowlark
threatened
TBD
Henslow’s Sparrow
Henslow’s Sparrow (PDF, 42kB) (Ammodramus henslowii)
endangered
The Henslow’s Sparrow is a short-distance migrant, travelling only as far as the southern United States, primarily from Texas to Georgia.
Hickorynut
Hickorynut (PDF, 42kB) (Obovaria olivaria)
endangered
TBD
Hine's Emerald
Hine's Emerald (PDF, 40kB) (Somatochlora hineana)
endangered
TBD
Hungerford's Crawling Water Beetle
endangered
TBD
King Rail
King Rail (PDF, 49kB) (Rallus elegans)
endangered
During courtship, males present crayfish or small crabs to females in their bill.
Pygmy Snaketail
Pygmy Snaketail (PDF, 37kB) (Ophiogomphus howei)
endangered
TBD
Salamander Mussel
Salamander Mussel (PDF, 41kB) (Simpsonaias ambigua)
endangered
The larvae of most freshwater mussels must attach to a fish host in order to survive. Once attached, the tiny parasitic larvae consume nutrients from the fish until they transform into mussels. The Salamander Mussel is unique in that their larvae use the aquatic Mudpuppy salamander as a host, instead of a fish.
Silver Shiner
Silver Shiner (PDF, 50kB) (Notropis photogenis)
special concern
TBD
Small Whorled Pogonia
Small Whorled Pogonia (PDF, 39kB) (Isotria medeoloides)
endangered
The Small Whorled Pogonia appears to be primarily self-pollinated. The flowers lack nectar guides and fragrance and insect pollination has not been observed.

February 2011 COSSARO Meeting

Butler's Gartersnake
endangered
The Butler's Gartersnake exhibits a peculiar behaviour called side-winding. When excited, it will vigorously wriggle from side to side, making little forward progress.
Cerulean Warbler
Cerulean Warbler (PDF, 84kB) (Dendroica cerulea)
threatened
TBD
Eastern Mole
Eastern Mole (PDF, 36kB) (Scalopus aquaticus)
special concern
TBD
Jefferson Salamander
Jefferson Salamander (PDF, 42kB) (Ambystoma jeffersonianum)
threatened
Unlike most small animals, Jefferson salamanders can live a very long time – up to 30 years.
Nodding Pogonia
Nodding Pogonia (PDF, 44kB) (Triphora trianthophora)
endangered
Orchids can remain dormant in the soil before emerging when the conditions are suitable.
Pitcher's Thistle
threatened
Pitcher’s Thistle was named after Dr. Zina Pitcher, who discovered the plant while serving as an army surgeon during the 1820s at Fort Brady, Sault Ste. Marie on Lake Superior.
Purple Twayblade
Purple Twayblade (PDF, 33kB) (Liparis liliifolia)
threatened
Purple Twayblade often grows in grassland savanna – one of the most endangered habitats in Canada. This extremely rare community supports an amazing diversity of wildlife, plants, butterflies and other insects.
Showy Goldenrod
Showy Goldenrod (PDF, 46kB) (Solidago speciosa)
threatened (Boreal population), endangered (Great Lakes Plains population)
The root of this species was used by Aboriginal people for burns, strained muscles, trouble breathing and difficult labour.
Skinner's Agalinis
Skinner's Agalinis (Agalinis skinneriana)
Skinner's Agalinis is able to steal nutrients from other plants. It uses a fungus to attach its own roots to the roots of its host plant, and is then able to leech nutrients and water out of the plant.
Timber Rattlesnake
Timber Rattlesnake (PDF, 40kB) (Crotalus horridus)
Extirpated (no longer found in Ontario)
TBD
White Prairie Gentian
endangered
Bumblebees are one of the few insects that are strong enough to open the White Prairie Gentian's flowers and pollinate them.
Woodland Vole
Woodland Vole (PDF, 39kB) (Microtus pinetorum)
special concern
TBD

June 2010 COSSARO Meeting

Acadian Flycatcher
Acadian Flycatcher (PDF, 44kB) (Empidonax virescens)
endangered
The Acadian Flycatcher only spends about four months of the year in Canada. The rest of the time, it is migrating or wintering in the tropical forests of Central America and northern South America.
Barn Owl
endangered
These birds hunt in the dark and have keen hearing – so keen they can capture prey even in total darkness.
Bobolink
Bobolink (PDF, 82kB) (Dolichonyx oryzivorus)
threatened
These birds migrate from Ontario to Argentina - one of the longest migrations of any North American songbird.
Bogbean Buckmoth
endangered
TBD
Cucumber Tree
Cucumber Tree (PDF, 42kB) (Magnolia acuminata)
endangered
TBD
Dense Blazing Star
threatened
Dense Blazing Star is able to grow in soil that is contaminated with cadmium by turning this toxic heavy metal into a non-toxic form in its tissues.
Eastern Prickly Pear Cactus
endangered
Birds sometimes nest among the stems of the Eastern Prickly Pear Cactus, where spines of the cactus aid in protecting eggs and nestlings from predators.
Eskimo Curlew
Eskimo Curlew (PDF, 80kB) (Numenius borealis)
extirpated
TBD
Four-leaved Milkweed
Four-leaved Milkweed (PDF, 37kB) (Asclepias quadrifolia)
endangered
TBD
Fowler's Toad
Fowler's Toad (PDF, 49kB) (Anaxyrus fowleri)
endangered
Fowler’s Toads are nocturnal and are mostly active at night, but can occasionally be seen during rainy, overcast days.
Frosted Elfin
Frosted Elfin (PDF, 28kB) (Callophrys irus)
extirpated
TBD
Greater Prairie-Chicken
extirpated
TBD
Karner Blue
Karner Blue (PDF, 23kB) (Castanea dentata)
extirpated
TBD
Laura’s Clubtail
endangered
TBD
Northern Riffleshell
Northern Riffleshell (PDF, 73kB) (Epioblasma torulosa rangiana)
endangered
Northern Riffleshell may be the most imperiled mussel species we have in Ontario, as it is believed there are fewer than 15 locations where this species occurs globally.
Queensnake
Queensnake (PDF, 113kB) (Regina septemvittata)
threatened
Queensnakes are excellent swimmers and can often be seen swimming and hunting underwater for their main food source – freshly-moulted crayfish. When freshly moulted, crayfish are soft, defenceless and easier to swallow. Ironically, during winter hibernation, crayfish turn the table and will eat juvenile and hibernating Queensnakes.
Rayed Bean
Rayed Bean (PDF, 71kB) (Villosa fabalis)
endangered
The Rayed Bean is extremely rare throughout its range. It is known from fewer than 25 river systems in Canada and the United States.
Rusty-patched Bumble Bee
endangered
TBD
Spring Salamander
Spring Salamander (PDF, 27kB) (Gyrinophilus porphyriticus)
extirpated
TBD
Wavy-rayed Lampmussel
threatened
The Wavy-rayed Lampmussel can fish. To attract a fish host that its parasitic larvae can attach to, the female produces a lure that looks like a wriggling minnow. When a fooled fish attacks the lure, the mussel ejects its larvae, which have a better chance of attaching to the host at such a close distance.

November 2009 COSSARO Meeting

Eastern Sand Darter
Eastern Sand Darter (PDF, 0.2MB) (Ammocrypta pellucida)
endangered
During the breeding season, the normally drab-looking, male Eastern Sand Darters become flushed with yellowish colouration and can develop metallic blue and green colours on their cheeks.
Monarch
Monarch (PDF, 0.2MB) (Danaus plexippus)
special concern
Caterpillars store a toxin in milkweed plants they eat, making them poisonous to bird predators as adults.
Northern Barrens Tiger Beetle
endangered
Females lay about 50 eggs during early summer, placing each egg in an individual hole in the ground.
Pale-bellied Frost Lichen
endangered
This lichen grows on the surface of other plants, rocks, or structures and derives nutrients from the air and rain.
Pink Milkwort
Pink Milkwort (PDF, 0.2MB) (Polygala incarnata)
endangered
TBD
Virginia Goat's-rue
Virginia Goat's-rue (PDF, 0.2MB) (Tephrosia virginiana)
endangered
Virginia Goat's-rue has its own self-defence against pesky insects. The chemical rotenone has been found in the plant, a chemical that is used as an insecticide and piscicide.
Virginia Mallow
Virginia Mallow (PDF, 0.2MB) (Sida hermaphrodita)
endangered
In Poland and Russia, this plant is cultivated and used as biomass for creating energy and heat.
Yellow Rail
Yellow Rail (PDF, 0.2MB) (Coturnicops noveboracensis)
special concern
TBD

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