Tag Archive | Invertebrates

Earthworms and Sugar Maple Saplings

Earthworms and Sugar Maple Saplings

Who would have thought that something so small would have such an impact on ecosystems? Lumbricus terrestris – the common earthworm – may not be as friendly as one might think. This species plays a major role in most ecosystems; in gardens and agricultural lands they are typically beneficial, but are they harming the iconic […]

Invasive Earthworms Posing Possible Threat to Yellow Birch Tree Population

Invasive Earthworms Posing Possible Threat to Yellow Birch Tree Population

The decline in tree populations around the world has become an alarming issue, as they play an important role in ecosystems, as well as in the economy. In the Saint Lawrence Lowlands, Yellow birch (Betula alleghaniensis), a uniquely golden yellow barked tree with a wintergreen essence, is an especially interesting species. Commercially, the yellow birch […]

Invertebrate Diversity in Coniferous and Deciduous Forests of the Morgan Arboretum

Invertebrate Diversity in Coniferous and Deciduous Forests of the Morgan Arboretum

Background Information on Invertebrates Representing the most dominant species in the animal kingdom (Spelman, 2012), and the majority of species diversity in terrestrial, marine, and freshwater ecosystems (New and Yen, 1995), invertebrates play a major role in the sustenance and health of the communities they thrive in. Some prime examples of their importance include their role in pollination […]

Human Impact on the Invertebrate Diversity in the Grasslands of the Morgan Arboretum

Invertebrates and Human Impact What would happen if invertebrates disappeared? It is a question one might have never pondered, for invertebrates by their small size and unpopular status, are often ignored. In short, it would be catastrophic. Invertebrates provide many essential ecosystem services and impact us in many ways. Ecosystem services are defined as the […]

Invertebrate Abundance and Diversity in Ponds

Invertebrate Abundance and Diversity in Ponds

Invertebrates are a diverse group of cold-blooded organisms that do not have or develop a backbone at any stage of their lives (Buchsbaum, Milne, 1960). They are so diverse in their structure, physiology, habitat, and behavior that they constitute approximately 95% of the total identified animal species on earth. With over 30 phyla, they are […]

Saproxylic Invertebrate Diversity in Decaying Ash Trees Vs. The Stage of Decay

Saproxylic Invertebrate Diversity in Decaying Ash Trees Vs. The Stage of Decay

Trees decay at very slow rates over the space of decades and constitute as much as 10-25% of the above ground biomass in forests (Ulyshen, 2014). Dead wood is a significant factor in nutrient cycling and is a host to many organisms, from unicellular microorganisms to complex invertebrates (Franklin et al., 1997). Organisms that depend […]

Leaf Litter Invertebrates of the Morgan Arboretum

Leaf Litter Invertebrates of the Morgan Arboretum

Invertebrates, while small, play an integral role in our ecosystem in the St. Lawrence Lowlands. In leaf litter, they aid greatly in the decomposition of organic matter, as cited by Vasconcelos and Laurance in their article on soil fauna (2005). Invertebrates are animals that lack a backbone, but this is where most of the obvious […]