kickapoo valley reserve
My friend Peter Schmidt was visiting Germany recently and found this tree branch in a woodland area. He thoughtfully shared it with your local Lichen Hunter. I have no idea what it is, but am going to spend some time with my lichen resources to challenge myself.
On the left there are some distant branches with yellow lichen; a careful look around this woodland might find more interesting species in addition to these bright yellow ones.
Here’s a closer view. Although the resolution is not good enlarged, we can see it is a foliose type of lichen; it has some leafy growth in areas and looks wrinkled, as if it is not tightly attached to the branch, as a crustose lichen would be.
Last summer I posted images from British Columbia, Canada, of the yellow lichens that are very common there in the fir and spruce forests.
The Letharia is a fruticose type lichen; it has branches, grows upright or trailing and is attached to the tree at small, discrete spots, just like a shrub growing in the ground.
Letharia vulpina uses vulpinic acid to make the yellow color, which is poisonous. In some parts of the north it has been used as a poison to kill wolves and other animals. It is toxic to any meat-eating mammal, as well as to molluscs and insects. But it does not affect mice and rabbits! The lichens use vulpinic acid to control the amount of light absorbed. (Lichen Biology, Thomas H. Nash III). The German lichen may use a different chemical to make its yellow color; a mystery I won’t solve today.
Remember, look for the Tiny Ones when you are out walking.
It’s hard to stop at just one poem. Now I’m looking for quotes about lichens, and more poetry too. So here is another lichen poem, by a trained biologist. This one goes deep into Lichen’s personal life. You might enjoy having a glossary of lichen terms nearby to get the most out of her verse, but even without that, I hope you are amused. She gives a fairly good synopsis of lichen life. Memorize the poem (why not?) and amaze your friends.
Lichen Poem by Caryl Sue (National Geographic/BioBlitz)
Their love can be a bit crustose
with areoles in bloom;
Their love can produce thread-like string,
called hyphae, when they plume.
Their love has colonized the Earth
from deserts to the ice;
These extremophiles exist
on sand, on trees, on gneiss.
Who could these star-crossed lovers be?
Why are they symbiotes?
They reproduce asexually
unlike us mammal folk.
A fungus, a mycobiont,
is one part of the pair-
It often lives all on its own:
itself, dead things, and air.
The other love, photobiont
can turn light into food;
The trick is photosynthesis
a skill that’s pretty shrewd.
Photobionts can be algae,
Some lucky fungi can have both
at once, and that’s a fact.
A pair now caught between two worlds
not fungi, not algae
A composite organism
of one, or two, or three.
United now, this smart couple
sets out to reproduce;
Small spores or fragments of themselves
are set on winds, diffuse.
Some reproduce by using spores,
sped off to parts unknown.
These fungi that do not find mates
are doomed to die alone.
are reproductive packs
In orange, or green, or yellow hues,
or purple, white, or black.
O foliose! O fruticose!
O squamulose, and more!
The fungi and the algae have
so many types in store.
Animals use them for their nests—
hummingbirds and turkey;
They’re almost all that reindeer eat
in the winter, murky.
People eat them as “famine food”,
They’re not a tasty treat.
They’re used in herbal remedies-
in dyes, and perfumes sweet.
So, once upon a time ago,
fungi, algae convince—
They fell in love, and they have been
lichen it ever since.
The past several months watching Kilauea’s changes as she wakes up has been fascinating. I have friends who have a home in this area, so there is a personal interest in what is happening there. As we adjust to the losses and changes for the humans, we are also respectful of Pele’s part in creating the lovely land we know as Hawaii. She knows what she is doing, and over time the foundation she lays for all other life will again support the abundance we are familiar with. After Pele cools off, what happens? For an entertaining account of the volcanic process, read Krakatoa by Simon Winchester
As the lava cools, the new earth is immediately colonized by bacteria that comes floating in on air currents. Also carried by the air are tiny seeds, bits of soil from other places, and…….lichens! Lichens are the first life to colonize the new earth, beginning to add organic matter to the surface as they grow and die, and they also begin their work of moderating the surface temperature and moisture content. They provide shelter for the first insects, who also blow in on the wind, or crawl from adjacent areas. Then the birds and lizards come to eat the insects and lichens, and then the tiny mammals, snakes, and gradually the forest reappears.
Mt. St. Helens in Oregon, has changed dramatically after the eruption 35 years ago. This mountain was covered more in ash than lava, so many of the plants reappeared from under the ash; life did not have to restart from the tiniest bacteria and lichen spores.
Where there is any live topsoil nearby an area such as an industrial site or monocultured agriculture land, where no life has been for some time, the lichens are not always the first to live in those barren places. Seeds already are present, if not in the exposed earth they are nearby, and easily move into a barren area. But the lichens do appear on soil very soon, and when any trees have been growing for a few years, the lichens begin to appear.
The Hawaiian volcano process is a rapid “movie” of how life begins on new earth. Variations of that process occur everywhere, but are less easily observed. Check on science websites or local Hawaiian park sites or private blogs, USGS info, for news on how the land and life changes on the newly formed land.
Happy Lichen hunting!
It’s summer! We are in the season of Frog Walks, night time Bat Surveys, Birding Events, star gazing nights and more. The extravagant displays of color and sound, the always changing feast for the eyes is at it’s best in the Kickapoo Valley Reserve.
Many of us review our familiarity with birds and plants we consider old friends, as they reappear each spring and summer. What have you learned recently, that is completely new, about the ecosystem you are part of? Now that you know at least some of the birds, flowers, trees, bats, mammals and even fungi and insects, what else could be here?
Learning about lichens and their relatives in the fungi world is a good place to start because most of us have not thought much about these neighbors. An essential part of the natural world as we know it is made up of fungi and LICHENS. Lichens influence and in some ways may control the environment. Lichens are everywhere- rock, tree surfaces, and on the ground. Lichens are at least as diverse as any other group of organisms. Lichens are present every day of the year. Lichens may be enjoyed as you canoe down the river, walk on a trail, or sit under a tree watching birds. Lichens are colorful, beautiful, endlessly varied and so easy to get close to.
Take some time to read this website’s information, look at the lichen books at the KVR while you relax in the Visitor Center, and go for a lichen hike with a friend, or give me a call and we’ll go visit Lichen Land to see who’s there this time of year.
Join the KVR Lichen Project this year. Learn about lichens; the world of nature that you think you know will expand dramatically. Becoming familiar with lichens opens a doorway to the ‘web of life’ that all are part of. We mostly see individual parts; the bird, the tree, the river….but none of those are what they are without all the others they relate to aand interact with. Lichens are quintessential collaborators, cooperators, adaptors. Many of the other residents you are familiar with are dependent on lichens to some degree. What can we learn about those relationships?
While the lichens moderates the climate for the tree it lives on, the tree moderates the climate for the earth under it and all that live there, and moderates the air space it occupies, affecting all the air interacts with, on so on the web spreads. How many more relationships like this surround us? What happens when those interactive webs are changed or destroyed? What can we do to steward the health and survival of webs of life we do not understand well? How can we learn to see these connections better, to foster our understanding of what is going on around us?
Learning about lichens and becoming familiar with them as part of the beautiful world you interact with on your hikes and other activities in the green world is one way to enlarge your perspective and through that, your effectiveness in caring for both the KVR and the larger green world around us.
Lichens are a bit harder to find in the depths of summer greenery. Look on exposed rocks especially along the river. Lichens as well as mosses and liverworts abound on river cliffs. The lower parts of tree trunks are always easy to observe and have many lichen species growing on them. Notice the different lichens on different tree species. There are also some lichen species that seem to grow on many tree species. What could be the reason some grow almost everywhere and others are very particular about their location?
Wet weather wakes up lichens. Their colors are bright and they are actively photosynthesizing and reproducing. Take a picture, and compare it with the same lichen at another time of year, when conditions are dry. The lichen may be almost unrecognizable as the same one you saw on a wet day.
Enjoy the lichens wherever you find them this summer. Post a message here if you see any lichens you’d like to share!
The KVR has the first ever Drive-By Lichen Viewing Site! Yes, you now can see lichens without even getting out of your car. I do not recommend this, but if it’s raining, it’s ok to roll down the windows and take a quick look, then come back later and walk around.
The official name of this site is “Cut Off and County P” lichen site. It is located east of Highway 131 and Bridge 10, on County P at the intersection of Cut Off Road. There are no markers at this site, as it is on the road right of way, but it is easy to get to and hard to miss. Once you are here, please do get out and walk around. Check the details of this site and the lichens living here by going to the Lichen Site tab on the main page.
There are several special aspects to this site. The first is the easy access. There are numerous places to search for lichens in the immediate area as well as right on the roadside cliffs.
Secondly, the cliffs on each side of the road are directly exposed to the chemicals and poisons expelled in our car exhaust as we drive through the narrow channel made by the rock walls. This may be the site most affected by air pollution on the reserve. Another interesting aspect of this site is that one cliff faces north and one faces south. The north facing cliff gets almost no direct sunlight, and is black in color.
The south facing cliff is in full sun all year long and shows the usual brown colors of sandstone. Each surface has a different mix of plants, lichens, and fungi. Throughout the year the populations of each change in size, color and quantity.
Most of the lichens at this site are crustose type, but there are also several foliose species here. If you search the nearby trees and some of the cliffs farther back in the forest, you may find some fruticose lichens too. Usually fruticose lichens are more sensitive to air pollution so if you find any of that type of lichen at this roadside site, please let us know, and take a picture of it for our records.
How many different crustose lichen can you see on each cliff face? What lichens are only on one cliff face and not the other cliff? This is an easy site to visit periodically. When you come back, are there different colors on the rocks? Can you find more lichens or less, than the last time you looked? Send your observations to the Lichen Project, and be part of Citizen Science explorations!
Thanks for visiting the KVR Lichen Project. Come visit us in Lichen Land!
Here in Lichen Land, the tiny but vast community of lichens, bryophytes and fungi are having a party on the Wintergreen Trail. Cladonia and Peltigera, Stereocaulon and Candelariella, Xanthoparmelia and a small crowd of their crustose friends are sporting fancy apothecia (disc or cup that produces spores) in many shapes and colors. The place is decorated in the brightest colors-turquoise, jade green, yellow, white, black, gray, brown, rust, pale blue. A Cladonia first caught my eye; she was fringed and spangled with intricate weavings of pale green, crowned with a russet apothecia/cap perched on her tall slender podetia (stalk). Many other Cladonias waved jade colored cups, some fringed and some smooth edged. The Peltigera rufescens, that not long ago sported velvety gray thallus and dramatic, hooded, vase-like apothecia, now were a bit faded in places. But some of them had grown dozens of tiny, white rhizines (root like structures) from the underside of the thallus (the vegetative part of a lichen that contains the photobiant and mycobiont.
All this elaborate activity goes on within one inch of the ground. A wrong step by a human would destroy many years of growth. But you can join the party; pack a 6x or 10x hand lens, your camera, and just walk into Lichen Site 4. They’ll all be there. Once you step down the two stone steps and turn right, slow down. Stop. Take out the hand lens. Breathe and relax. Even though it’s a party down there, we need to slow down to join up with the Tiny Ones.
Have you ever hunted for 4-leaf clovers? Use the same type of gaze and attitude; you’ll be more successful with lichens because there are so many of them, you can’t miss them. Once a few are seen on the pine needle covered ground you will start to see the stalk-like podetia everywhere. Get down close to them, use your hand lens held close to your eye, then move closer or farther from the lichen to focus, keeping the lens close to your eye.
At ground level the elaborate, fringed structures make a fairyland scene. A few weeks ago, the podetia were straight and smooth pointed stalks. Now they sport cups, caps and fringes. The thallus (the leafy part) may have rhizines, brighter color and also more elaborate shapes. There are many very tiny lichen growing among the taller ones so be careful where you step! It truly is a forest in miniature, with a canopy, mid layer and ground layer of plants and animals.
There are several types and species of lichen sharing Cladonia’s forest. Peltigera sp. has been introduced earlier, but there are many more lichen here. On the edge of the narrow pathway, rocks with lichens barely discernible in the summer now are alive with color and texture. These are crustose lichens, and there are quite a few species here. Many
species of crustose lichen on the rocks at this site have produced apothecia. Look for dark spots in the light colored crustose lichen body. Most of the lichen on these rocks are white, gray, or blue-gray. There also are some black crustose lichen here. Look closely with your hand lens to check for apothecia on the black lichen; they are hard to see. How many different species of lichen can you find? These can be very hard to identify without a high powered microscope to see details, and chemicals to test certain reactions lichens may have. At this time, the Lichen Hunters are simply recognizing these are ‘crustose’ forms.
On the low, sandy cliff (the cliff is 2-3 feet high) at the top of this area, the walls have been decorated in turquoise, green and white. The colors are bright and clear. In the shadows under the rocky overhang, the gauzy, lacy texture of lichen mixed with moss, spider webs and falling grains of sand make a confusing scene. What is lichen, and what is sand grains, or spider webs?
As the sunbeams illuminated strands of turquoise and green against the dark recesses it seemed to be an endless mass of tangled threads. Much of the lichen here is probably a Stereocaulon sp. commonly called ‘Rock Foam’. There are several species, some of which, in the arctic, are food for caribou during famine.
Pixie Foam, a miniature Stereocaulon species, often grows where there is a high concentration of metals in the rock. Lichens are used all over the world to prospect for minerals by analyzing the mineral content of the lichen thallus. (From ‘Lichens of the North Woods).
How many species of lichens can you sort out, under the sandy ledge? There are also mosses, ferns and fungi here. How many different life forms can you find, of any kind? This is a rich, active place, yet we know almost nothing about the lives here, or what their place in the world might be.
This visit to Lichen Land left me feeling as if I’d crashed a party. The last time I was here, the lichen were growing podetia but were much smaller. Today I crossed the threshold of two stone steps into their world, and it had changed dramatically. Colors were brilliant, forms were elaborate; the lichens seemed more alive! They didn’t seem like the same lichens I’d seen earlier. It was quiet, but I felt there was music and shouting and dancing going on, in a tiny way. It felt like a party.
As I walked away I thought about how the earth, rock, sand, and trees, each have a community of lichen. They are not plants, they are not animals; they are simply something else. What do they weave for the web of life in the world as we know it? Why do they cover such a large part of the earth’s land surface? There are over a hundred species of lichens on the base of the trees in the Kickapoo Valley Reserve. We don’t know how many different ones are in the canopy, or the soil or on the rocks here. Everything in Nature has a place and a purpose. The Lichen Hunters are exploring what that might be for the lichens in the Kickapoo. Come on out for a walk in the woods and help us learn about the Tiny Ones.
We may be hearing a lot more in the future about mycorrhizal fungus. This site is an ongoing story about lichen, and officially, mycorrhizal fungi are not really ‘cousins’ of lichens. But cousins are often the most numerous relatives we have, so I use that term to foster awareness that the fungus Kingdom is varied and vast. Sometimes getting to know one member of a family entails getting to know other members of the family one had not planned on meeting, or even knew existed. At the party called Daily Life on Earth, meeting all the relatives is part of the fun.
I met a mycorrhizal fungus last fall, on a dead tree trunk at the end of the Wintergreen Trail. I believe it is hyphae but do not know the fungus species. If anyone reading this knows, please post your ideas! Even deceased, it was an impressive presence. Long dark threads hung from the leaning tree trunk where the dry bark had separated from the inner wood. The threads formed a complex web several feet long, dangling in the air. The strands were so strong I could not break them by hand. There was yards and yards of this fibrous material. It seemed to have covered most of the surface of the tree trunk, under the bark.
Fiber strings from under tree bark
The picture is blurry, but the very dark strings and dark bark had no noticeable detail, so the picture is close to what I saw. The extent of the fiber mass was impressive.
Why am I talking about this mat of dark threads? Because I was exploring the NASA Global Climate Change site and found a story on mapping the mycorrhizae locations in forests, by mycorrhizae species. Read the story for why NASA is doing this; it’s interesting. There are two mycorrhizal species and trees use one or the other. The forests are regulated by the signals the mycorrhizae send through the trees. They work with other plants too. Scientists think this is important enough to make maps of where each species is in the forest, in relation to the tree species, and they are doing so by satellite images. So that old adage “you can’t see the forest for the trees” is true for us in a much deeper way than we ever understood before. The trees are one part of a vast and complex web of living beings, all talking to each other and cooperating to regulate themselves and their environment. Once we lift the curtain of our preconceptions, amazing things start to show up everywhere. If we only see trees, birds and some flowers, we are missing the major part of the forest. There is far more diversity and number of living beings in and under the soil than above it, and as much metabolic function occurs on and in the ground as above. The Small Ones may be at least as interesting as the large plants and animals we easily recognize.
After reading the article and thinking again about the mycorrhizae, I wonder about the relationships between fungus that don’t make lichen and those that do; between the chemistry created by one group of trees and fungus, and the signals of moisture, temperature, nutrients and more that may be allowing or encouraging certain other living beings to take up residence nearby. We know so little about the extensive activity going on just underground. What similar actions may the lichen be doing? After bacteria, they are the original homesteaders, setting up the terrain to be hospitable to the first mosses and vascular plants. Lichen are very good at getting along with other life forms and have made a place for themselves everywhere on earth. Maybe they have something to tell us about their part in regulating the forest, beyond their original activity of creating soil and available nutrients from rock and wood and air.
So, no lichen pictures today, just questions about this green and shining world we share with unknown others.
Check this blog again soon, for information on our first KVR lichen survey route.