Archive for category Native Wildlife
Wonder Spouse and I have been privileged to live on the same five acres of North Carolina Piedmont for 30 years. When I first saw the land covered in melting snow on a January day in 1989, I knew enough to recognize its potential. A diverse array of mature trees offered clues about soils and microclimates. In my mind’s eye, I could imagine the native species that should be present, and others that would do well if I added them.
Still, my little green haven exceeds my expectations nearly every time I walk it. Something — or someone — new is always appearing, and I believe it is because Wonder Spouse and I have deliberately chosen plants that have filled in some of the missing pieces of native ecosystems that I detected three decades ago. As a friend recently wrote to me, “If you plant it, they will come.”
When some birder friends of ours stopped by last fall and walked our land with us, they said they observed/heard about 60 bird species during the course of our walk. The high number is in part due to the growing beaver-built pond and wetland off our property on the other side of the creek. The raised water levels have attracted all manner of aquatic species of birds, mammals, reptiles, and amphibians. Many of those species occasionally wander over to our side of the creek to explore. I know this for a fact now, thanks to the critter camera that Wonder Spouse gifted me with this past January. We attached it to a tree and aimed it at a path along the creek, where we often see deer tracks. Thanks to the camera, we now know that many species besides deer routinely travel that path.
I realize that most folks aren’t lucky enough to live beside a healthy wetland, but even a quarter-acre lot possesses microclimates created by directional exposure and topographic variations. You can instantly serve more native wildlife guests by providing a small water feature, such as an ornamental pond. We have such a feature at our front entrance. Every year, frogs from the wetland find it, chorus lustily, then deposit gelatinous eggs that become tadpoles that eventually morph into new frogs. Amphibians are always on the lookout for such ponds, because they are usually protected from at least some of their predators, raising the odds of success for tadpoles to become frogs.
On this Earth Day 2019, I encourage all my plant-loving readers to revisit your landscape designs for additional opportunities to provide habitat for native wildlife. Rapid urbanization of the southeastern US Piedmont region is destroying many areas that once sheltered our wildlife. Ecological degradation caused by environmental pollution, invasive non-native species intrusion, and climate change-related weather shifts is causing dramatic reductions in our native wildlife from insects to birds to larger animals. Every human home landscape can make a critical difference to the continuing survival of our native wildlife.
You may not see quite the diversity of species my critter camera has captured on my five acres, but you will notice an uptick in beautiful songbirds if you plant native shrubs that provide food and cover and perhaps add a few nesting boxes and a bird bath or two. Those same shrubs will provide habitat for the caterpillars songbirds use to feed their nestlings. But they won’t eat them all, meaning you’ll see an uptick in butterflies and moths.
Your yard will come to life before your eyes. Your landscape will be vibrantly beautiful and healthy. And you will have the satisfaction of knowing you are doing your small but vital part to keep the blue-green jewel we call Mother Earth alive and healthy.
Those of you who have read this blog for a while may remember when I first wrote about the invasive non-native insect called Emerald Ash Borer here. This insect species is killing almost (maybe all) ash tree species in North America — no joke. It started in areas like Canada and Michigan, and has been marching steadily southward ever since. Its occurrence is widespread in North Carolina. Dr. Kelly Oten, Forest Health Monitoring Coordinator for the North Carolina Forest Service, told me that confirmed sitings are reported for every county around me. The closest infestation she knows of is about 10 miles north of my five acres.
I had read about an experimental program Dr. Oten’s office is using to combat the Emerald Ash Borer (EAB) — the release of a parasitic wasp species native to the same part of Asia where EAB evolved. I believe the wasps used in NC parasitize EAB eggs by laying their own eggs inside EAB eggs. A couple of wasp species that parasitize EAB larvae also exist, as described in a US Forest Service publication on EAB biocontrols here.
I assumed that my little five-acre patch of Piedmont would be too small for this experimental wasp release program, but a forester friend of mine encouraged me to give Dr. Oten a call, so I did. I was delighted to discover that Dr. Oten was interested in the stand of 37 mature Green Ash trees growing on the floodplain portion of my land. However, she cannot release wasps unless she is certain the EAB is present on my land, because the wasps will die without a food source.
I have seen no evidence of EAB damage in my ashes <knock wood>, such as crown dieback and a yellowing of leaves (Here’s a link to a PDF from the Canadian Forest Service containing everything you need to know about detecting EAB damage.), so Dr. Oten suggested that we set up a couple of EAB traps at the appropriate time. That time is early April, because that’s when EAB egg-laying occurs, and it is EAB eggs that the experimental wasps look for to parasitize.
On the morning of April 11, Dr. Oten arrived with two traps to hang on a couple of my ash trees. The traps are shipped flat in pairs that are stuck together by the sticky fly-paper like glue used to snag passing EABs. In the above photo, she has successfully pulled the two purple traps apart and has begun to fold the one she is holding so that the sticky glue is on the outside of the three-sided trap. The traps are purple, she told me, because research shows this color attracts EABs most effectively, perhaps, it is theorized, because young ash leaves often possess a purplish hue.
Besides the EAB-preferred purple color, traps also contain a bag of scent lure that is hung inside the trap. Dr. Oten is holding one of those bags in the above photo (click on any photo to see a larger version). The scent emulates the smell of an ash tree in distress. Many studies have confirmed that plants engage in sophisticated chemical warfare with their insect enemies. In many plants, when a plant is under attack, it emits a scent signifying its distress, which in turn stimulates nearby plants of the same species to begin producing chemicals that may help them repel invading insects. This doesn’t work for the ash trees with EAB, because North American ash trees did not evolve with this insect; thus, they have not developed any defenses against EAB attacks.
After she attached lure bags to the center of the EAB traps, Dr. Oten used the long extension pole in the photo to attach the traps to sturdy horizontal branches on two ash trees at opposite ends of my floodplain. This turned out to be trickier than you might think, because my canopy-size ash trees don’t possess many horizontal branches within reach of the pole. Dr. Oten’s first attempt to hang the trap was unsuccessful; the sticky trap fell into a stand of bladdernut shrubs, thus becoming adorned with bits of bladdernut leaves and flowers. Her second attempt with a different tree was successful.
In the second photo above, you can see bits of bladdernut leaf and flower stuck to the trap. Dr. Oten said this will not interfere with the trap’s effectiveness in luring EABs.
Next, we slogged through the mud to the far side of my floodplain, where Dr. Oten selected a second ash tree suitable for trap-hanging. This operation went more smoothly than the first, and the trap was soon hung.
Dr. Oten explained that EABs are actively flying and egg-laying in my area from early April until about June. She plans to return to my floodplain in about four weeks to inspect the traps for EABs. If she doesn’t see any, she will add fresh lure bags and return in another four weeks. If no EABs are found on the traps during that time period, it is less likely — but not impossible — that EABs have found my ash trees — yet. If she does find EABs stuck to the sticky glue on the purple traps, she will release parasitic wasps into that area.
Note that the wasps are not expected to stop the demise of my ash trees. My understanding is that the introduction of the wasps is part of a long-game biocontrol strategy that may, perhaps decades from now, yield benefits. It is an entomological shot in the dark, as it were.
For me, helping with this experiment is far better than the two alternatives available:
- Doing nothing but watch the ashes decline as the woodpeckers feast on their dying remains full of EAB larvae, leaving behind a floodplain almost fully devoid of its canopy tree cover.
- Having an arborist inject systemic poisons into the trees. Besides the exorbitant expense (37 60-70-foot tall ash trees), the poisons kill any insect that takes a bite out of treated trees. In his classic book, Bringing Nature Home, Douglas Tallamy notes the number of different insect species that rely on native trees for food. For ash species, his number is 150; that’s 150 different insect species that rely on ash trees as a food source. So if you poison your ash trees to prevent EAB invasion, you will also potentially poison at least 150 native species of insects that rely on ash trees. Further, those now-dead insects — mostly caterpillars — would have fed myriad species of nesting songbirds, which also will likely now die from starvation.
You cannot break one link in the chain of life without affecting every other link. I pray every day that humanity figures this out — and acts on that knowledge — before so many links are broken that the chain cannot be mended.
The snow finally stopped falling last Monday afternoon – about 9 inches all told. This morning’s TV reporters chirped merrily about clear roads, and how all is returning to normal today. “But watch out for patches of black ice,” they cautioned.
This is one of those times when I feel as if I live on a different planet. Our low temperature this morning bottomed out at 21 degrees Fahrenheit. Our long driveway remains buried in about 5 inches of snow, making walking to the garage an adventure. Snow has morphed into a solid block of ice; it will take Friday’s “warm” rains to eradicate it.
But there are compensations for this icy inconvenience. Exhibit A: this morning’s sunrise. As if struggling against the cold, the sun only gradually warmed the sky, first painting it peach, then rose, and for a few brief seconds, deep red. Framed against a snow-covered landscape, the show was worth freezing on my back deck to snap photos as I listened to plaintive cries of yellow-bellied sapsuckers, rattling calls of kingfishers, melancholy songs of white-throated sparrows, and squeaky-toy chirps from brown-headed nuthatches high in the loblollies. Our overflowing creek chuckled softly — background to the bird bustle – then I spotted the does.
With obvious caution, they took their time placing each foot onto the cold-hardened snow, waiting for their weight to break through before moving the next foot. It was a slow trek across the ribbons of water criss-crossing the floodplain, now fire-painted by the rising sun. As each doe reached the edge of the creek, she paused, clearly reluctant to wade across a stream too wide to jump over. I could almost hear each one sigh as she delicately stepped into the rosy water, testing the creek bottom for solidity. Each left a ripple of fire water behind her as she waded in slow motion to the far side of the creek, then plodded on through the snowy wetland on the other side.
I am sure that local wildlife challenged by the snowy landscape would agree with me that life has not yet returned to “normal.” But while they perhaps didn’t appreciate it, I know I feel blessed to have witnessed this morning’s five minutes of magnificence.
In my region of central North Carolina, it has been a very sparse year for butterflies and moths. The local lepidopterists (folks who study this group of insects) suspect that an especially severely cold winter followed by a wet early spring may be responsible for the dearth of this insect group. This is not just bad news for those of us who enjoy watching colorful butterflies drift in clouds from flower to flower. It is very bad news for the ecosystem, because myriad species of animals — most especially nesting birds — rely exclusively on the larvae of this group (caterpillars) to feed their young. Caterpillars are the perfect baby bird food — packed with protein and other key ingredients that insure that chicks grow quickly to fledgling stage, where they become less vulnerable to predators. In fact, caterpillars are the only food parent birds of familiar species such as Eastern Bluebird, Carolina Chickadee, and Carolina Wren can use; their chicks require the specific nutrients in those proportions to grow and fledge.
The well-known classic, Silent Spring, by Rachel Carson warned the world about what happens when insects disappear from ecosystems. The banning of DDT saved our birds that time. A more recent classic, Bringing Nature Home: How Native Plants Sustain Wildlife in Our Gardens, by Douglas W. Tallamy, details specifically which species of insect rely on which species of native plants. The list is long and alarming — at least to me — because many species of insects rely exclusively on only one species of plant to feed their larvae. If that plant species is unavailable, the insects that rely on it cannot complete their life cycles. If the host plant species becomes widely unavailable (as species of Ash trees are becoming now, due to devastation by the non-native Emerald Ash Borer), insects that rely on those species will disappear.
I was delighted to spot this fresh-looking Juniper Hairstreak dining on Swamp Milkweed in my pollinator garden yesterday. This small butterfly is often overlooked, because of its soft green color, but it is relatively common in the Piedmont region of North Carolina because its larval food plant — Eastern Red Cedar (Juniperus virginiana) is also relatively common. On my five acres, we are lucky to have a number of 40-foot mature specimens. They provide shelter for birds and other creatures, their bluish “berries” (actually cones) are beloved by Cedar Waxwings and other birds, and their sturdy shade and deep green color make this evergreen species well-suited for any landscape. If sited where air flow can stagnate, a colorful fungus that uses this species as an alternate host can appear, but I solved this issue in my yard simply by limbing up the trees to permit better air circulation.
References tell me that male Juniper Hairstreaks linger on branch tips of their host tree until a female is attracted. Females lay single eggs on the tips of branches, which eventually hatch to become very well-camouflaged caterpillars similar to the one in this link. I’ve never seen one on my trees, but then again, I’ve never gone looking for them either.
But the presence of this fresh-looking specimen on my Swamp Milkweed yesterday tells me that my Red Cedars have been playing host to green caterpillars that have likely been helping to feed the three broods of Eastern Bluebirds reared by the ambitious parents that nested on my property this year.
In a world so filled with darkness these days, the appearance of this petite green butterfly gives me at least small hope for my planet’s future.
I always carry my camera with me when I step outside this time of year, even if I’m just walking the 100 yards to the mailbox. If I don’t bring it, some butterfly, bee, bunny, or bird does something photo-worthy that I don’t catch if I’m unprepared. These shots are what I caught today.
I spent the morning working in the vegetable garden. I needed to work longer, but the sun is ferocious, the humidity unforgiving. Yesterday, I finally harvested our first squash and first two eggplants. We ate them last night and I can report that they were delicious. Today, I picked another eggplant, decided to give a couple of squash one more day to fill out, exhorted the tomato plants bent low with the weight of green orbs to hurry up and ripen, and rejoiced in sighting the first bean flowers on all three varieties I’m growing. A little photographic documentation follows. To enlarge a photo and see its caption more easily, click on it.
To get to the vegetable garden, I travel through the front yard and pollinator gardens. Here’s a sample of what I saw today.
In the center of my front yard, the Chinese Pearl-bloom tree commands full attention as it nears peak bloom.
We especially enjoy this time of year because of the near-daily emergence of tiny new amphibians from the front water feature. A few days ago in the early morning after a night-time shower, Wonder Spouse and I counted 25 hiding on various plants growing nearby. I suspect that most are Cope’s Gray Treefrogs, but I’ve heard other amphibians singing lustily beside the pond at night too, especially Narrow-mouthed Toads. When they are this tiny, though, I have no idea how to tell them apart.
Every day brings new discoveries, fresh food, and hard work. I wouldn’t have it any other way.
Gardeners are time travelers. Our ties to good earth, green plants, and all the creatures that rely on them anchor our bodies while simultaneously transporting our minds through a river of time that flows both ways, forward and back. When we plant a seed or a young tree, we see in our minds what that plant will become. When we see a mature oak, its full green branches laden with acorns, our minds travel back to the time when the acorn that became the mighty oak was planted. As I plant and tend a garden, I slip into the timestream, seeing clearly the ripe tomatoes I will pick in a few weeks, ivory flowers that will perfume the air when a Bigleaf Magnolia attains blooming size, and the berry-eating birds that will flock to the holly and viburnum fruits produced by the shrubs I settle into the ground today.
Experienced gardeners and other adept readers of the land, such as ecologists, slip easily into the Green World timestream as we go about our lives. Visions of past and future landscapes unfold with our footsteps; trees and rocks whisper their stories to us.
Such was the case when I first encountered a gnarled tree with heart-shaped leaves standing stoically beside the pond of the Piedmont Patch demonstration site on the grounds of a small church in Chapel Hill, NC. The vicar of that church was eager to show me the tree because she was deeply attached to it, even though she didn’t know its identity. Her parishioners had wanted to cut it down, but she resisted the suggestion. To her, I think, it represents resiliency; despite its apparent suffering, as evidenced by gnarled branches sporting spindly green shoots and obvious dead branches, the tree had not died. The vicar showed it to me that day hoping that I would be able to give her beloved tree a name.
Heart-shaped leaves narrowed down identity options considerably, which helped. It wasn’t a redbud; leaves and branches were all wrong for those species. It wasn’t – thank heavens – an invasive non-native Princess Tree (Paulownia tomentosa).
By that time, the vicar had told me the story of the land her church occupied. It was a piece of an old farm; they use the old farmer’s home as their parish house. The small pond was part of the farm too, stocked with fish and regularly visited by local fishermen for generations. The church is committed to maintaining the pond for those fisherfolk, even supplying poles for those who care to stop by and try their luck.
As I listened to her describe the history of the pond, the puzzle resolved. I knew instantly that the gnarled old tree was a Southern Catalpa (Catalpa bignonioides). Technically native to slightly more southern states, these trees have naturalized in North Carolina, likely in part because humans have been planting them beside fishing holes for generations as bait trees.
Southern Catalpa is the host food plant for the caterpillar of a sphinx moth (Ceratomia catalpae) that is commonly called a catalpa worm. The outer skins of these caterpillars are tough enough to anchor a fish hook, and their insides emit a scent – even under water – that is catnip to catfish and other fish likely to inhabit farm ponds. Practical fisherfolk of earlier generations soon learned to plant Southern Catalpas beside their favorite fishing spots, so that bait would be handy when they got a hankering to toss out a line.
When I had my aha moment of identification, my mind carried me back to earlier times – probably at least 50 years in this case – when a time-traveling fisherman planted this Southern Catalpa because he could see that it would grow large beside the pond, be visited by moths that would lay eggs that would hatch into fat catalpa worms, providing irresistible bait for fish caught to feed hungry families.
I pointed out the tree to a fellow plantsman, who was intrigued by its story. He remembered it when he was acquiring plants at a local nursery and noticed in a corner two very pot-bound saplings of Southern Catalpa that the owners were planning to discard. He asked if he could have them, they happily said yes, and he brought them to me to plant beside the pond that has become the home of the Piedmont Patch demonstration site. Wonder Spouse helped me plant them last year, not far from the gnarled original. They are growing well, and the vicar was pleased that if her old gnarled friend succumbed to time’s travails, its tale would be carried forward by the two new trees.
Fast-forward to late May of this year, when I was visiting the site to slip in some beautiful donated plants from another nursery, lovingly dug up and delivered to me by a wonderful plantswoman who works there. I had finished my work and was taking a few photos of what was blooming on this patch of piedmont that is transforming rapidly, thanks to the addition of over 1000 native plants added this year by volunteers who support this vision of creating a sanctuary of native plants to feed and shelter local wildlife being displaced by the rapid urbanization of the region.
I walked down to admire the young Southern Catalpas, which now stand near a honeybee hive added this past spring – a fortuitous location, given that flowers of these trees – when they are old enough to start blooming — are beneficial to these pollinators. That’s when I noticed that the elder Southern Catalpa had more fresh leaves growing on it than I had seen since I met it two years ago.
When I approached it for a closer look, I realized it was covered in gorgeous flowers! They reminded me a bit of orchids, hanging in pendulous clusters. My mouth gaped long enough that I was lucky one of the nearby honeybees didn’t fly right in.
Of course, I took photos – lots of photos. When I told the vicar, she was astonished. “That tree has never bloomed!” she exclaimed. “How is this possible?”
I can only speculate, of course, but I do have a couple of theories. My first is that perhaps the tree felt valued again when we planted two more of its kind nearby. That is an entirely subjective explanation I realize, but if you want to put a scientific veneer on it, I could offer that perhaps increasing the plant diversity of the site as a result of the Piedmont Patch project somehow enlivened the plants already growing there.
My second theory has no scientific basis, but as a time-traveling gardener, I have to wonder if perhaps this tree slipped into the Green World timestream back to a time when it was more vigorous. Maybe the work of Piedmont Patch volunteers on the site carried it back to more vibrant times, causing it to burst forth in an enthusiastic flower display more typical of past decades.
Transformation is definitely the motif of the Piedmont Patch demonstration site. Already, every day brings new wildflower blooms, new birds, and a continuous stream of volunteers bearing plants and offering labor to further the creation of this native haven. Already, it is a place of peace, beauty, and above all, hope.
As I travel forward in my mind to envision this site a few years from now, I see volunteers – the Piedmont Patch Stewardship Team – tending the site. As they pull out unwanted plants and add more native species, work to eradicate nearby stands of invasive non-native species, and document the site’s continuing transformation, I see this site serving as inspiration for new piedmont patches springing up in the region. Every patch will be different – as unique as the group creating it and the site upon which it is established. But all will be growing green havens of native beauty that shelter and feed wildlife, from pollinators to birds to lizards, frogs, and cottontail rabbits.
All will be symbols of hope, refuges also for souls of weary humans who too often lose touch with their connection to the Green World. Perhaps these havens will help more of those disconnected souls regain a knack for time travel, to see what a healthy future for the region – and the planet – looks like. As a time-traveling gardener, I hold on to that hope for transformation. How can I not, when I see a seemingly dying tree burst into spring bloom, and a pond-side full of random weeds become a vibrant assembly of native grasses and wildflowers?
On this blog on past Earth Days, I have mounted what I call my green pulpit to preach about the struggling biosphere on our beleaguered planet. Frankly, I am so discouraged by what humanity is allowing to happen these days that I almost didn’t bother to write anything today. But a recent local event motivated this post.
Wonder Spouse and I have lived on the same wonderful five acres for 29 years. Because we live beside a perennial creek with an adjacent wetland, beavers have moved into our immediate area several times. Photos throughout this post are of the current beaver pond adjacent to our property. The transformations they manifest on the local environment are immediate and mostly wonderful. From a human perspective, though, because they cut down and eat trees and raise water levels to flood multiple acres, they are often considered a nuisance.
About ten years ago, the last healthy 1000-acre stand of forest near our house was erased and replaced with a truly enormous subdivision full of houses packed so closely together that I am sure neighbors can hear each other with the windows tightly shut. Yards are tiny and all look alike, adhering, no doubt, to strict HOA rules. Frankly, the place gives me the heebie-jeebies.
But the California company that erected this monstrosity over fierce objections from the local community was clever. They market this massive people prison as “nature-friendly,” because they left alone small patches of forest around creeks and wetlands (where they couldn’t build houses easily anyway). They built trails through it, and I gather it is used heavily by residents. In fact, many of the residents claim they chose to live there because they are “nature lovers.”
One border of this suburban nightmare is less than a mile from my house, so it is no surprise that the creeks that run through it host a healthy beaver population. Recently, beaver activity there covered one of the expensive pedestrian bridges in their trail system, and the HOA voted to have the beavers exterminated, which created such an uproar from some of the residents that their protests gained local news coverage, and the HOA has temporarily halted their extermination plans pending further review of possible solutions to “the beaver problem.”
On this Earth Day, I describe this to you because I am flummoxed by the ability of the residents of this massive subdivision to see trees but no forest. In other words, they pick and choose what bits of the natural world they like and which parts they dislike, oblivious to the reality that nature is a system of complexly interlocking parts that evolved over spans of time beyond their easy comprehension.
These residents have decided they like beavers. But these same residents team up in blocks to get a group rate on poison applications in their yards to kill ticks and mosquitoes. The poison doesn’t outright kill honeybees, but it is concentrated in their honey. More important, the poison, which is sprayed 30 feet high into the trees, also kills aquatic animals like fish and frogs (big mosquito eaters). Imagine what it likely does to nesting birds!
So on the one hand, these beaver-lovers are fighting to save the wetlands created by these industrious rodents, while simultaneously poisoning that environment, all because they want to be able to sit on their patios without being bothered by the insects that are a key food for that aquatic environment.
These same residents trap squirrels visiting their bird feeders and release them elsewhere. This is illegal, by the way, but also demonstrates ignorance of ecology. If you remove squirrels, more squirrels will move into the vacated spaces. I guarantee it.
Another resident of this suburban monstrosity told me of the big argument she had with a pesticide company over not spraying poisons in her house. She told me that it is apparently a selling point of this subdivision that all the homes are constructed with pipes running through the walls. Once a month a pesticide company hooks up its tank of poison to the outlet to these pipes and fumigates inside the walls to kill any insect foolish enough to consider moving in.
As for ticks — which I readily admit are significant disease vectors — balanced ecosystems are less likely to be overwhelmed by them. White-tailed deer and white-footed mice are two key transporters of ticks. Both species are very happy dining on over-fertilized lawns and shrubbery and beneath messy bird feeders. Adding clusters of native shrubs that feed and shelter birds and reducing lawns in favor of, say, small pollinator gardens of flowers would help dwindling insect and bird populations and reduce the need for supplemental bird feeding except during winter months when food is scarce. Small brush piles provide habitat for birds and opossums — known by ecologists as “tick vacuums,” because when they are present, the ticks they pick up are eliminated by their meticulous grooming habits.
To all these residents who moved here from elsewhere, I ask you to embrace the fact that you now live in the southeastern United States. Our mild climate means insects thrive year-round. We who grew up here know this and long ago adapted to that reality. When you attempt to kill or remove every animal that you don’t like, your choices impact more than just those target species. You hurt the environment you profess to love. You hurt the home of those furry rodents you have anthropomorphized into your friends. This is not an either-or situation. Nature is a system, an orchestra composed of myriad instruments, a chorus of many voices. The richness of the song is diminished every time you exterminate a voice. The viability of the entire system becomes more fragile every time you impose your will onto the environment that supports all of us.
On this Earth Day, I implore my neighbors to embrace all of Nature’s parts, whether or not they inconvenience you. If you can find a way to co-habit with beavers, that’s great. But if at the same time you do not protect the health of the wetlands they create by ceasing to poison and over-fertilize your yards, by replacing biologically sterile lawns with native flowers, shrubs, and trees that support wildlife, by learning the names of all the native plants, animals, birds, and insects in your environment and teaching those names to your children, then you are merely killing your beloved beavers by slower methods than those planned by your HOA.