Tag Archive | Ecology

Beechdrops at the Morgan Arboretum

Beechdrops at the Morgan Arboretum

Physical Description Beechdrops (Epifagus virginiana) are annual flowering plants which parasitize beech tree roots all over Eastern North America. They completely lack chlorophyll and have smooth, brownish stems and branches that reach a height of about 30cm (Musselman, 1982).  During our own observations, they were very easy to miss under all the autumn leaf litter, […]

Shelf Fungus Diversity and Tree Health at the Morgan Arboretum

Shelf Fungus Diversity and Tree Health at the Morgan Arboretum

  The importance of shelf fungi in the St-Lawrence lowlands Polypores (also known as Shelf fungi and Bracket fungi) are found across North America, anywhere woody plants are present (Gilbertson, 1980). They usually grow on fallen logs, stumps, dead branches and even living trees whose bark has been breached and begins to decay (Roberts and […]

Here are your 2014 Natural History research questions!

This year’s St Lawrence Ecosystems course is off to a great start. As other years, we have a great suite of projects lined up, and students will be starting their field research next week.  Late last week, the students were all asked to tweet their research questions.  Please have a read and give the students […]

Small Arboreal Mammals of the St. Lawrence Lowlands

Small Arboreal Mammals of the St. Lawrence Lowlands

Small arboreal mammals, such as Eastern Gray Squirrels (Sciurus carolinensis), American Red Squirrels (Tamiasciurus hudsonicus) and Eastern Chipmunks (Tamias striatus), play important roles in forest ecosystems of the St. Lawrence Lowlands, including that of the Ste-Anne-de-Bellevue Morgan Arboretum. These species are essential to healthy forests because they distribute seeds from plants, as well as fungi […]

The Sugar Maple

The Sugar Maple

Acer saccharum, also known as “Sugar Maple”, is a deciduous tree species native to the St-Lawrence Lowlands’ area. It is usually found in the northeast of the United-States and in the southeast of Canada. The sugar maple is very dominant and broadly distributes in the northern hardwood forests of this region (Lovett & Mitchell, 2004). […]

The Black-capped Chickadee’s Natural History

The Black-capped Chickadee’s Natural History

Identification and Description                                   The Black-capped Chickadee (Poecile atricapillus) is a passerine bird belonging to the family Paridae. It is a charismatic species that approaches humans without fear, which makes it much easier to see than other birds. It is a very small bird with a total body length of around 12 to 15 cm and […]

Studying the diversity and ecological importance of aquatic macroinvertebrates

Studying the diversity and ecological importance of aquatic macroinvertebrates

When one looks out on the St. Lawrence waterway, they normally see large container ships passing by. However, the traffic below the surface is far greater, as it is teeming with life. Although they constitute a large part of this underwater community, aquatic macroinvertebrates are often overlooked. Despite this, they represent a key link between […]