Trees

Beech Bark Disease Severity vs. Tree diversity

Beech Bark Disease Severity vs. Tree diversity

The American beech tree (Fagus grandifolia) is a species of canopy tree found in the northeastern U.S and Canada, growing in mixed deciduous, hardwood, and temperate forests (Zhang et al., 2015). In the Morgan Arboretum, which is dominated primary by sugar maple and beech, these beech tree plays a significant role in the ecosystem by […]

Hay Scented Fern and its Effect on Sugar Maple Trees in the Morgan Arboretum

Hay Scented Fern and its Effect on Sugar Maple Trees in the Morgan Arboretum

Overview: Hay-scented fern (Dennstaedtia punctilobula) is an invasive, rhizomatous, perennial fern native to North America (Hippensteel and Bowersox, 1995). This species grows in many different conditions and spreads itself by dispersing its spores with the help of wind. This perennial fern is about 1-3’ tall, with deciduous leaves that are erect to ascending. It is […]

Eutypella Canker Disease of Maples

Eutypella Canker Disease of Maples

The sugar maple (Acer saccharum) is a hardwood species native to eastern Canada. It is significant in canadian culture and economy. Its leaf is featured on the national flag and its sap can be processed into maple syrup, a valuable commodity.  Canada alone manufactures around 80% of the world’s maple syrup. Most of it is […]

Earthworm Abundance in Relation to Buckthorn

Earthworm Abundance in Relation to Buckthorn

St. Lawrence lowland forests are home to an immense amount of diversity. However, this diversity can sometimes be put in danger with the introduction of invasive species. Invasive species are attributed to being the second leading cause of local extinction (Roth et al., 2015). One major invasive species in North American forests is the common […]

Woodpecker Damage on Ash Trees at the Morgan Arboretum

Woodpecker Damage on Ash Trees at the Morgan Arboretum

Introduction The emerald ash borer (EAB) has killed 75 million ash trees in North America since 2002 (“Ville de Montreal”, 2015), causing Montreal to invest 15 million dollars over the next three years to deal with the infestation, and plant new trees (Laframboise, 2016). Predators of the EAB larvae include woodpeckers (Jennings et al., 2013). […]

Solving a Myth: Do Lichens Know What Direction They’re Growing In?

Solving a Myth: Do Lichens Know What Direction They’re Growing In?

Introduction Growing up in Canada, our culture has always praised the pioneers who colonized what we call home. Lichens, in the way the first settlers tell us about a community, tell us a lot about an ecosystem. They are bioindicators for air quality and perhaps even cardinal direction. Join us in our investigation as we […]

Medicinal Plants in the Morgan Arboretum

Medicinal Plants in the Morgan Arboretum

Dominant tree species within a forest have resounding effects on the developmental direction an ecosystem takes. Different types of trees can affect the soil properties, water, light availability, and in our case, understory growth. A large portion of understory plants have medicinal properties, making them of special interest to humans both historically, having been used […]