I’ve struggled with getting a post written this spring. Partly I’m grappling with time and energy, which we all do, though the particular demands on our time differ. Chris cut down at least 10 large invasive white mulberry trees (Morus alba) for firewood, and cut up the large parts before he left for a month-long spring term in New Zealand. I have been cutting up the rest. My chain saw can handle up to 8-inch diameter logs and I have alternated days between cutting and hauling it to our two sheds, aka our Black Snake Exfoliation Spas. I have found myself staring at the growing pile of wood like I do my canning jars all lined up on their shelves in the fall with a mixture of self-admiration – I stacked all that wood to keep us warm – and incredulousness – how in the world did families survive without their backup furnace?
Often while working, a jumble of words and ideas forget to pass each other in the muddle of my mind and form an essay that I’d love to write. But when I do sit down at my computer, and need to work on my children’s books, the essays have tended to re-tangle in my mind instead of flow out my fingers. Mind you, it’s not like I’ve cut or hauled all day. My battery, and the two chain saw batteries I have, only give me about two hours, but that’s enough to drain me for hours afterward, and make me slow going the next morning.
I’m not complaining. I really do like that I can do this work and that we save on our heating bills, savor an old-fashioned heat and get exercise in the process. I know it still pollutes, returns carbon to the atmosphere, but at least I’ve had to work for my warmth.
One essay I would love to write is about the current state of politics and ecology regarding invasive species versus native species. I have some understanding about ecological processes in different habitats. I am full of concern about lack of understanding on the parts of those people who feel we must return a system to its native species (usually by poisoning) without an understanding that ecosystems are not static. And without an understanding of the underlying reason that said native species no longer exists. Usually all this does is create another disturbance for the same invasive or a new one to enter into the story – and at great economic and ecological cost. For a great example of this see the story of salt cedar on the Colorado River.*
I’m also full of confusion about to what state of nature people want to return our habitats. Before we, the worst invasive species ever, arrived in North America? One or two hundred years after we invaded and had already brought over species from Europe intentionally and unintentionally? See the following link for examples: http://eattheinvaders.org/we-came-over-on-the-mayflower-too/
I agree that some species are particularly aggressive and I would not be happy to find them at Halcyon. Kudzu particularly comes to mind. Would I succumb to using poison? Creeping Charlie is quite aggressive, but of course is small, easy to pull and actually to me quite beautiful. I spent $80.00 on grape hyacinth bulbs last fall to turn the front lawn into a brief purple sea each spring. Creeping Charlie is doing a much better job, for free.
So I remain tormented. I pull garlic mustard on my walks when I can easily reach it. I’ve seen it every year since we moved here 17 years ago and it has not taken over. I mow more than I want to keep ailanthus and mulberry from literally carpeting the yard around the house. However, I mow much less than the previous landowners in order to attract wildlife and protect the stream. Over the years we are finding a mixture of native species living with invasive species. There is a slowly growing and gorgeous patch of golden ragwort by the stream because I do not mow to the edge. I found black cohosh last year and wild comfrey this year. There was a small patch of spicebush when we bought the property. Now it is all over…a lovely invading native.
Perhaps I am only seeing a snapshot in time and the invasives will take over. But what if that model is wrong? And what does take over really mean? What if some selective cutting and benign neglect allow the natives a chance to adapt to a newcomer’s defensive strategies? It is possible. I have a right to be here. But, I also have a responsibility to tread as lightly as I can because of my big human footprint. Who am I to kill the house sparrows that nest in a blue bird box – sparrows my species introduced?
Well this essay seems to have spewed out finally, but is admittedly messy and incomplete. I know scholarly ecologists will find my ideas and concerns naïve if they subscribe to the current dogma of saving native habitats. Perhaps I am naïve. It is hard for me to know the best course of action, but I do know that Halcyon is a prettier, wilder (meaning more species live here than when we moved in), scrubbier place than when we bought it. I know too that our management choices – clearing for walking paths, planting mostly native trees, hand removing of some invasives and cutting our own firewood (always an invasive tree unless a native falls) – are disturbances to habitats and that with or without us and our impact on the land Halcyon will continue to change over time. I am just a small part in a small picture from a larger ecosystem.
What kind of story do we want to tell in the long run about our treatment of other species? What if humans don’t learn from past follies and continue to disturb habitats, which in turn advantage invasives? An invasive species is none other than an opportunist looking to take advantage of an open opportunity. An opportunist that could provide food, nitrifies the soil, provides oxygen for us and sequesters carbon. Services we can’t live without.
I don’t feel any more settled about what is the best course of action regarding invasive species. But I intend to go slower with decisions about certain species on the property. Observe them. Admire their tenacity and understand their adaptations. I don’t want to be a master in control of them; I want to feel part of a special place. A place I call home.
*Beyond the War on Invasive Species: A Permaculture Approach to Ecosystem Restoration by Tao Orion. Chelsea Green Publishing, Vermont. 2015.