Category Archives: Ecology

The Serviceberry: Abundance and Reciprocity in the Natural World, A Review

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Robin Wall Kimmerer is a botanist, ecologist, a teacher and a member of the Potawatomi people of the Great Lakes region, from whom she learned her people’s particular world view, one once common amongst many indigenous peoples and in stark contrast to that of our present day dominant culture, which has lead us to powerfully shape our our world today. Her three popular books, “Gathering Moss”, “Braiding Sweetgrass” and her latest, “The Serviceberry”, present to the reader a glimpse into the natural world as seen from this ‘alternative’ world view. All three are enlightening reads and not overly technical. They are ‘invitations’ to see the world from a different perspective. The latest is the smallest, a book barely over 100 pages, with large type and in a small page format…a quick read, unless you pause to give what she presents some additional thought. The best, and the one I read first, is “Braiding Sweetgrass”.  Continue reading →

The Seat of Awareness: On Plants and What We can Learn from Them

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“From the viewpoint of the evolutionary biologist it is reasonable to assume that the sensitive, embodied actions of plants and bacteria are part of the same continuum of perception and action that culminates in our most revered mental attributes. “Mind” may be the result of interacting cells. Mind and body, perceiving and living, are equally self-referring, self-reflexive processes already present in the earliest bacteria.”
—Lynn Margulis and Dorian Sagan, “What is Life?”, 1995

From what do sentience, awareness, consciousness and intelligence come from? Are these capacities a product of an organism’s complexity? At what point does it first appear? is it a property inherent to even the simplest organic chemicals? of peptide chains and amino acids, of atoms themselves?What of the organizing principle that seems to guide embryogenesis, the growth and form of every living individual of every species? Is it in action in the most ‘simple’ interactions between organic chemicals and the energy flowing through them, that favors one form over another and animates those same forms once they meet some critical minimal level of complexity?  Is this evolution towards complexity and ‘awareness’ an inevitability? A product of its component parts and the energies within it? [This is an idea that is separate from the notion of an inevitable ‘progress’ of life, always moving ‘forward’. Progress is a human notion, an assessment and a valuation of the change around us, not a ‘goal’ of natural selection and the animating ‘flux’ of energies within the universe.] Rudimentary awareness must exists at some necessary and basic level in the simplest single celled organisms…even in plants.

I look to that which is shared between all organisms and question the idea of the animal brain, and its neural system, as the basis for these things and its purported absence in plants, fungi, bacteria, viruses and archaea, as lacking in them. The brain itself and associated nervous system is a unique and complex structure present only in ‘higher’ animals. This bias in favor of the brain and neural systems, especially that of the human brain, as the seat of awareness and consciousness, ignores the requirements of any organism. We are biased in our insistence that these capacities must be located in a singular physical organ and no other. A singular occurrence in the universe. A huge conceit on our part, that this capacity exists in us alone, in and organ and tissues we could could physically evaluate, one which we ‘carry’ internally within us as we move freely about. The body, any body, is a vessel which contains life and is shaped by it. Life is both of the body and transcendent, existing beyond it. Life exists within the continuously unfolding moment. Life is not a ‘thing’ so one can hardly expect awareness, consciousness and intelligence to fit neatly into a limited organ, however we define it. The roots of this reach back into the study of evolution, ecology, cell biology, neurobiology, the metabolism and thermodynamics of life and the expanding field of quantum biology.

This latest thought piece has been inspired by three recent books I’ve read, Ed Yong’s, “An Immense World”, Paco Calvo’s, “Planta Sapiens” and Zoe Schlanger’s, “The Light Eaters”. I am not a scientist. I’m a student driven to make sense of this world. The connections and conclusions I make here are mine, although they may be suggested by the writings of others. Continue reading →

On Ornamental Trees and the Remaking/Unmaking of Place: Revising the City of Redmond’s Tree List, part 2

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How Much to Water?

Recommending trees from climates with significantly wetter growing seasons needs to stop if we are to continue growing our population. Landscapes as designed, and managed, are the single largest user of residential water. Recommending trees which ignore this problem is irresponsible. Lower water use residential landscapes are possible. Local codes and recommendations must, however, reflect this priority.

Additionally, how much to water is a bit of a mystery to all of us and especially so to non-gardeners. How much? How often? Our watering practices should be determined by the local precipitation and the tree’s needs. What is commonly done, however, is that we water for our lawns and that largely determines what our trees receive, unless we have separate drip systems. A tree’s root system doesn’t stay neatly between the lines. They quickly extend out well beyond the span of the tree’s leafy canopy. In many cases even 2-3 times as far, taking up water and nutrients. A roots of a tree, planted in a small bed, adjacent to an irrigated lawn area, will move out into the lawn. A tree isolated in a xeric bed with only a few drip emitters, will quickly demand more than such a meager system affords it and such a tree, if it requires summer moisture, will struggle while competing with its nearby  ground level growing neighbors. Again ‘neighbors’ should share compatible requirements so all can thrive on the same ‘diet’ and moisture regime. Continue reading →

On Ornamental Trees and the Remaking/Unmaking of Place: Revising the City of Redmond’s Tree List, Part 1

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Perhaps an odd tree to start this with, Juniperus scopulorum ‘Woodward’, is not a ‘shade tree’. It is not deciduous. It is a narrow, fastigiate form of Rocky Mtn. Juniper that, growing to a height of 20′ with a 2′-3′ spread can serve as a formal accent in colder climates like ours as a ‘replacement’ for the more tender Italian Cyperss, and it can do quite well here with very little supplemental water.

Trees, specifically ornamental shade trees, have become an expected and desired part of our urban lives, at least util their leaves fall and await our cleanup. Many associate long tree lined streets and avenues with urban living. Broad Maples. Lofty Elms. Plane Trees and, in tighter spaces, perhaps Cherrys, Crabapples and flowering Plums. Urban trees provide several notable ‘environmental services’ increasing our comfort level with their cooling shade, their capacity to remove pollutants from the air, cover and nesting places for birds and the sequestration of carbon. Trees are generally viewed as a public good, necessary even for our lives. We can get quite emotional about them. So it seems a bit ‘wrong’ to suggest that this ‘ideal’ may not always be ‘best’ or even desirable.

Broadleaved deciduous shade trees are ‘naturally’ members of mesic, temperate to cold-temperate regions of the world. That is where they evolved and where when we plant them out, where they do best. When we begin planting them outside of their historic natural ranges, especially when we ignore the conditions, the disparities and the extremes between their natural ranges and those where we choose to plant them, then we can have some serious problems. The trees may struggle along, or if we remain committed to making up for our local area’s lacking, usually in the form of supplying more water, they can do reasonably well. But this suggests possible real problems as one moves further away from the conditions of a tree’s natural limits and increase the numbers planted out. Where is this water coming from and what are the impacts of removing this water from its normal and healthy cycling of which it is a part? What will be going without? And, is that cost worth the losses it creates? Our selection and planting decisions depend on how we value that which is lost! In short, the typical deciduous shade tree of our imaginings does not belong here in a desert. Continue reading →

Mowing Firebreaks Across the Dry Canyon Bottom, Good Idea or No?

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Mowing weakens the native plant community and aids the growth of weeds.

Mown adjacent to unmown. Aggressive spreaders will fill in more quickly and because of the weeds already in place, they will sieze a larger proportion of the mown area as they grow and spread.

While recently walking home through the Canyon, last month in December, I noted 8 new  strips, presumably ‘fire breaks’, mown across relatively flat and uniform sections of bottomland, each maybe 50’+ wide, spanning the bottom between the paved eastern path and the the main dirt western bike path. While I understand the thinking here, removing ground level fuels, this is a single purpose treatment that works counter to the Park’s purpose as a natural area preserve. Mowing down the Rabbitbrush, a ruderal, transition species of the Sagebrush Steppe plant community, delays the development of a healthy native plant community and encourages an increased array and density of weeds and invasives. Mowing this way provides open space for weed species already in Dry Canyon, as well as those not yet here, giving them larger ‘launch points’ from which they can spread into the rest of the Canyon. Mowing weakens natives, which are naturally slower to rebound from the damage than the aggressive weed species. Continue reading →

From 0’ – 3,000’ in 70 Million Years:  Building Oregon, Dry Canyon, The Shaping of Redmond and the Geology of the Paleo-Deschutes, Part 3

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Cascade Volcanic Arc –

Over the last 2.5 million years, roughly corresponding with the Pleistocene Ice Age, there have been at least 1,054 volcanoes in a ‘belt’ from Mt. Hood running 210 miles south to the California border and then, after a break, continuing to Mt. Shasta and Mt. Lassen, in a band 16 to 31 miles in width. These latter two, southern most of the Cascades, show no effect of glaciation from Glacial Periods. They were far enough south of the Glacial Ice to be unaffected. The material ejected and flowing from these many volcanoes and vents come from the crustal material of the subducting Juan de Fuca plate. The Cascades are a defining feature of our region in terms of aesthetics, but also as a shaper of climate, as well as being a physical barrier limiting the movement of organisms and thus goes to determining the ‘shape’ of our lives here. The Arc is still active, magma is still being ‘delivered’, building incredible pressure below through these same processes which have shaped this place to date. While we may assess its various mountains as ‘active’ or not, the volcanic arc, is still very much a factor in determining our long term future. Where it will next erupt from, and what form that will take, is impossible to say within any degree of confidence. But the earth’s tectonic plates are still in movement. Magama is still slowly, but inexorably, coursing through its crustal layers and the movement and pressures will continue to result in further eruptions. Continue reading →

From 0’ – 3,000’ in 70 Million Years:  Building Oregon, Dry Canyon, The Shaping of Redmond and the Geology of the Paleo-Deschutes, Part 2

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Clarno Formation – 54 to 39 million years ago.

Getting back to Central Oregon, the Clarno Formation formed much of the region’s base rock, an accumulation of volcanic rock, their sediments and soils in layers to as much as 6,000’ thickness. 6,000’. The area was what geologist call an ‘extensional basin’, a broad low basin between the Blues and Wallowa Mountains and the accreting and volcanic landscape forming to its west.

As the Clarno was forming so was Siletzia off the coast of Oregon, Washington and British Columbia, building up relatively rapidly from intense and volcanic activity between 56-49 million years ago to the west. Siletzia was then accreted to the continent due to plate tectonics. In Oregon this terrane became the area we now recognize as our Coast Range and Willamette Valley.

This area looked far different before this period than at its end. It looked far different again, from when it attained its maximum elevation, to how it appears today. Trying to tack all of this is a bit like trying to follow a 3 ring circus…with many more rings, all proceeding at the same time, with generous overlaps. When looking at our landscape we are faced with the problem of the never ending processes of ‘addition’ and erosive ‘subtraction’. The ‘end’ of the period we define as the Clarno Formation is not one of some final result. The regions canyons, have today been deeply eroded, cut steep, with broken slopes, below the rim tops we see today. These were very different 39 Ma and they will look far more different in another million or ten million years from today, likely unrecognizable to us. Even if we were able to somehow survive until then to observe them, our ‘snapshot’ and pliable memory of them would have likely transformed over the many centuries. Erosion will have been at work over the intervening time together with those forces working to ‘build’ and ‘lift’, the working of plate tectonics locally continuing to drive the process as they continue in their slow motion crashing, transforming the surface from below.

During the Clarno those forces continued with, explosive eruptions, lava and pyroclastic flows, lahars that poured down from volcanoes of the Mutton Mountains in the formations northeast corner and Ochoco Mountains area, just west and south of the Blue Mountains, along with their mudstone, and conglomerates derived from the erosion of both accreted terranes and that of volcanically ‘built’ structures. And thus was ‘built’ the Clarno and the later John Day Formation. The three largest volcanic structures of the period in the Ochocos remain today as the Crooked River, Wildcat Mountain, and Tower Mountain Calderas. These volcanos have not been active for many millions of years. The center of volcanic activity in the region began to shift westerly during the Clarno with the tectonic changes accruing to the expanding continent’s edge developing into what would be the Cascade Volcanic Arc. The Ochoco Volcanic Area remained an active factor on through the development of the John Day Formation Period. Continue reading →

John Vaillant’s, “Fire Weather: A True Story from a Hotter World”

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‘Global warming’ and ‘climate change’ have become trigger phrases, hot buttons for millions of Americans. What were originally coined as descriptive, short hands to signify a complex climatological process induced and accelerated by human action, has been thoroughly politicized. Today they separate ‘us’ from ‘them’.

For those on one side, the earth, is a closed, limited and complex system we are ‘pushing’ beyond its inherent abilities to maintain dynamic balance within margins which organisms can live in a vital, healthy state, biological processes continuing in a familiar manner. This ‘side’ understands that we are adding vast quantities of carbon to the atmosphere causing the earth to retain more heat, heat which ‘spins’ the entire system faster, potentially beyond the limits that life evolved with. Such a more ‘carbonized’ atmosphere resembles that here of many millions of years ago, of a warmer earth, that was nonsupportive, too warm, for the vast majority of organisms which exits today. Too much carbon released into the atmosphere? These effects are easily demonstrable in a lab experiment. These people have some understanding of what they must do to slow and halt these changes, what we must do  to ameliorate the damage we’ll inevitably face. Pushed too far the system won’t return to the old ‘normal’ in a few weeks, months or years. It will be with us for generations to come.  Continue reading →

The Gene: An Intimate History, a Review

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I finished reading Siddhartha Mukherjee’s book from 2016, “The Gene: An Intimate History”, a dense, engaging book, written in a prose style, conversational, thorough, accessible and personal, exceedingly rare qualities to find in a book covering such technical topic. Mukherjee, trained and worked as an oncologist, won the Pulitzer Prize for his earlier book on cancer, “The Emperor of all Maladies: A Biography of Cancer”. He is currently an associate professor of medicine at New York Presbyterian Hospital/Columbia University. Understood to be the ‘best’, or most complete and thorough history of genetics, our understanding of it and the ethical questions of its increasingly influential applications in medicine, society and evolution. Of such broad scope in the changing landscape of medicine and its science, it has expectedly, become subject to an array of criticisms. The practice of science is not perfect. Our understanding is forever evolving and as much as promoters might insist that theirs is solid and fixed, our knowledge will always be imperfect. We circle around a topic, defining it closer and closer, but never quite understanding it fully, questions leading us to more questions, our knowledge shaped by what we already ‘know’, and very occasionally propose entirely new ways of explaining, new theories, that dislodge previous established theory. Continue reading →

The Much Maligned Western Juniper: The Role of Juniperus occidentalis in Central Oregon

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Old growth Junipers near Cline Buttes. These two rooted down long ago on top of this lava flow. Much of the lavas here were produced during the Deschutes Formation over many thousands of years more than 5 million years ago. Surface lavas, cliffs and slopes define the area with a few sediment filled basins dominated by Sagebrush and Bitterbrush.

The Western Juniper is the  singular native tree of Dry Canyon and the immediate Redmond area. I grew up with it here in Central Oregon. When we moved here in ’61 i remember driving north after passing through miles and miles of various Pine forests, which eventually yielded, riding in our VW bus, as we left Bend. Bend sits within the ecotone, the relatively narrow transition zone, between Ponderosa Pine forest and Juniper steppe. What were these trees? Coming from California’s Salinas Valley, the landscape could hardly be more different to a six year old. So different in form and detail, Junipers squatted darkly across the landscape, nothing like the tall, majestic Pines or Oaks I was more familiar with or even the Lodgepole Pine we drove through across the pumice plain of the LaPine area. Continue reading →