Posts Tagged 'books'

Twins

MACRO:

A Planet To Win: Why We Need a Green New Deal

“It is clear the political establishment is collapsing in the United States and beyond. Clinging to it makes it possible for reactionaries like Trump to gain more ground the world over and brings climate catastrophe closer. The fundamental issue is this: As the center shrinks and the time for decarbonization tightens, milquetoast climate action on the margins will satisfy hardly anyone. If centrist Democrats spurn the insurgent Left and instead see centrist Republicans [i.e Bloomberg, Buttigieg, Klobuchar] as their most reliable allies, they’ll pull the planet out of the frying pan–and into the fire.”

For every young person you know.

MICRO:

Nature’s Best Hope

“We need to practice conservation where we live, where we work, and where we farm, because we humans now occupy or have seriously altered nearly all of the spaces outside our parks and preserves.”

Douglas Tallamy, entomologist and ecologist, has been particularly influential. His Bringing Nature Home is a key source for a lot of people in the field(s). His newest book charges us with doing what we can. Chief amongst these things is turning our lawns from sterile water-and chemical dependent dead zones into habitat, into parts of what he calls the Homegrown National Park.

But not every plant is equal. Gardeners and plant-sellers are still pushing an out-dated aesthetic of what makes a pretty yard and garden. They’re still releasing invasives, still contributing to the reduction of carrying capacity, biodiversity, and ecological complexity. Of many examples he gives: most of Portland, Oregon’s street trees are, by far, exotics from abroad or other areas of North America. Everybody ooohs and ahhhs over the tree-lined streets. But these trees simply do not support the insects that feed on native plants (and the insects that feed on native plant feeders); fewer insects mean the birds don’t have anything to eat. In Portland a few years ago, I saw damn few birds until I got up in the hills.

An example Tallamy doesn’t use. It’s new: the Brooklyn Botanic Garden is touting its brand new crape myrtle (Lagerstroemia) hillside. It’s 2020 and these damn fools, who should be leading the city in education about native plantings and biological complexity, are planting this ecologically useless exotic! And celebrating it! They are actively contributing to the reduction of our insect, and hence bird, carrying capacity. And they are modeling this for gardeners.

Almost unbelievable — but not when you know the recent history of the place. The destructive head of that debased institution — who fired all the scientists, eviscerated the historic mission, tried to ship the herbarium out-of-state, and turned the place into a wedding venue — has finally left town, but the board who let him hijack the garden remains in place. What a dreadful legacy he leaves behind and the board perpetuates.
***

If you don’t have a bookstore, bookshop.org is a new alternative to paying for Jeff Bezos’s five hundredth bathroom.

Oaks to Caterpillars to Birds

The National Wildlife Foundation has a county-level guide, the Native Plant Finder, to native plants that support caterpillars. Why caterpillars? Because they are esentially the foundation of the food chain for song birds. Even the seedeaters that come to your feeders for seeds and suet in winter feed their young caterpillars. Caterpillars are relatively soft as insects go, and they are simply packed with fats, proteins and carotenoids, which are vital for avian development and feather pigmentation.

The stats on caterpillar consumption are mind-boggling: a single nesting pair of Carolina Chickadees will feed their young ones 6000-9000 caterpillars before fledgling, meaning over sixteen days on average. After fledgling, nobody has counted, but fledged Chickadees get feed for up to three more weeks. It’s rare to see Carolina Chickadees in Brooklyn.

Here’s another: a Wilson’s Warbler pair were closely observed. The male carried food to the nest 241 times a day, the female 571 times a day. For five days. That’s a minimum of 4060 caterpillars, if each trip was one caterpillar’s-worth. Often as not there are more than one caterpillar in the parent’s bill, at least in places un-assaulted by chemical warfare and invasive species.

Bobolinks: parents brought food to nest 840 times a day for ten days in a row.

A UK study of ten different passerines found an average of 259 food trips to nest per day.

Audubon’s Plants for Birds is another good source for information on plants to grow in your area. Many of the plants sold for yards and gardens are the WORSE thing you could do for local food webs. After all, they’re for sale so people can make money. Pretty and exotic is sterile. Ornaments and decorations, it turns out, are actively working AGAINST nature.

“Bird-friendly” shade grown coffee? Nope, not if the shade is being thrown by eucalyptus trees, which are often used because they grow fast… and provide shade. But they provide next to nothing for the birds because they provide nothing for local insects.

(In California, where they went crazy for eucalyptus a century ago, precisely one species of insect has adopted to living off these exotic and invasive trees in that time.)

It’s not just biodiversity. The kind of plant makes a lot of difference. Some keystone species are disproportionately productive for food webs. “A landscape without keystone genera will support 70 to 75 percent fewer caterpillar species than a landscape with keystone genera, even though the keystone-less landscape may contain 95% of the native plant genera in the area.”

The single best insect-friendly species to plant in 84% of U.S. counties are white oaks and their relatives. They support some 934 caterpillar (butterfly and moth) species nation-wide. Compare with tuliptree (21 caterpillar species), black gum (26), Sweetgum (35), persimmon (46), and hemlock (92). In the mid-Atlantic states, white oaks host nearly 600 species of Lepidoptera larvae.

Do you know how many species of butterfly in their larval state live on Buddleja, the famous “butterfly bush” much touted as food for butterflies, in North America? One out of the 725 species.

But wait! Of the 511 caterpillar species found on oaks in Chester Co., PA, 95% of them fall to the ground when they’re fully grown. They don’t pupate in the trees themselves, probably because they want to escape predators. Instead, they burrow into leaf litter, dig themselves into the ground, and even chew their way into rotten wood. So a stately oak in a patch of turf grass, well-mowed and sprayed, with hard-packed soil, tidied up every fall of all those rich leaves, is a desert. Put in native shrubs and/or flowers like wild ginger, foamflower, and woodland phlox. Or keep the leaf “litter.” (Change the name of litter to “natural fertilizer” and/or “habitat.”)

All data and quotations taken from Doug Tallamy’s new book, Nature’s Best Hope, to be discussed tomorrow. A book for your neighbors, I’m guessing.

Caterpillars at Backyard & Beyond.

Whale Ho

I came across some research that showed a Bombus bumblebee species whose members got physically smaller in competition with the commercial livestock that are honey bees.

I was reminded of this when I read Richard J. King‘s reference to the shrinkage in the size of whales killed between 1900 and 1986, when the international moratorium on whale-hunting finally went into effect. Sperm whales showed the most dramatic declines: ones killed in the 1980s were one average 13.1 feet shorter than those killed in 1905.

The diminishment of whale populations in absolute numbers and size has had ricocheting effects throughout the oceans. Whale excrement was a major source of nitrogen, essential for phytoplankton, before the run-off from farms and suburban laws poured too much nitrogen in. The death of a great whale was an enormous boon to deep sea creatures.

The more whales there were, the more other lifeforms in the sea.

Japanese cast iron whale, paperweight or totem, piloted into our ken by a friend.

Dinosaurs Past and Present

What do we know about dinosaurs now and, perhaps more interestingly, how do we know these things? Michael J. Benton lays it out in Dinosaurs Rediscovered: The Scientific Revolution in Paleontology . Origins, taxonomy, intelligence, reproduction, diet, locomotion, and, of course, the cause(s) of extinction are topics covered here.

Surely the most notable and surprising thing in our understanding of dinosaurs in the last couple of decades has been the discovery of dinosaur feathers. Colored feathers! (Good gravy, there were ginger dinosaurs!) With the added brain-expander that these feathered creatures were not fliers. They were using feathers for insulation and/or sexual attraction before feathers for flight.

Those scaly toes, those beaks! Most of the dinosaurs were wiped out 66 million years ago. But not all of them.
Birds in Winter: Surviving the Most Challenging Season by Roger F. Pasquier is a compendium of research. From migration to toughing it out, our feathered dinosaurs are no slouches when it comes to the cold. (The absence of cold, on the other hand, is already telling in our warming planet, especially for sea birds who depend on cold currents that enrich the seas at the base of their food chain.) There is no no one size fits all to this, by the way. The great takeaway from this relentless collection of natural history observations —there are thirty pages of bibliography — is that variety is all.

Just one example: American Kestrels cache food throughout the year. In the non-breeding season, they’ll often store food for later in the day, and sometimes even the next day. Vertebrate prey can obviously hold up longer in the cold. Our breeding pair seemed to store food overnight. I’ve seen no winter caching myself. Research suggests that the birds will eat before the long cold night.
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And this just in: colorful bird eggs, not something seen in reptiles, are another inheritance from dinosaurs.

Against the Grain

“The founding of the earliest agrarian societies and states in Mesopotamia occurred in the latest five percent of our history as a species on this planet. […] Measured by the roughly 200,000-year span of our species, then, the Anthropocene began only a few minutes ago.”

And look what we don’t that tiny bit of our time here on Earth!

If you’re like me, you learned that the first states, and hence civilization, arose with agriculture and sedentary lifestyles (sedentism) in early city-states. But we now know that agriculture and sedentism predated all this by a couple thousand years.

James C. Scott’s Against The Grain: A Deep History of the Earliest States is one of those books that overturns stale thinking and makes you look afresh at the world we’ve made. Things like the reluctance, until quite recently, of the great majority of the world’s population (call them barbarians, pastoralists, hunter-gatherers, peasants, etc.) to be sucked into cities/states. Cities were places of slavery, disease, and simplification. Nomadic people were far healthier than urbanites, until quite recently. The state is based on the domestication of fire, captives, livestock, plants, and women.

And from a wide range of plant and animal food, we’ve been whittled down to a handful of grains, hard little nubbins that are easy to count, tax, and control.

The book begins with this gut-punch quote from Claude Levi-Strauss: “Writing appears to be necessary for the centralized, stratified state to reproduce itself…. Writing is a strange thing… The one phenomenon which has invariably accompanied it is the formation of cities and empires; the integration into a political system, that is to say, of considerable number of individuals… into a hierarchy of castes and classes….It seems to favor rather the exploitation than the enlightenment of mankind.”

Our oldest story is Gilgamesh. It is not insignificance that the killing of the forest guardian Humbaba (Huwawa) precedes the cutting down of the cedars.

Migratory Restlessness

Of course the Germans have a word for it: Zugunruhe. Migratory restlessness is best known in birds, but other animals have it as well. In spring and fall, these animals feel the need to get a move on. Hormones trigger it.

Here’s Melville making an analogy in Pierre, or, The Ambiguities, published in 1852:

“So the sweet linnet, though born inside of wires in a lady’s chamber on the ocean coast, and ignorant all its life of any other spot, yet, when spring-time comes, it is seized with flutterings and vague impatiences; it can not eat or drink for these wild longings. Though unlearned of any experience, still the inspired linnet divinely knows that the inland migratory time has come.”

Migration complicates the notion of species, including out own. (Paywall.)

A Reading List


I’m just catching up to the Swift Guide to Butterflies of North America by Jeffrey Glassberg. Glassberg is an old butterfly hand, who’s written a couple of other guidebooks to the subject. (Never enough guidebooks!) He takes a firm stand against amateur netters and collectors (i.e. killers), commercially raised butterflies, and butterfly releases at weddings (I didn’t know this was a thing). This is a photo-based guide with a lot of rarities who show up in the LRGV (took me a second to track this down: Lower Rio Grande Valley, which is, of course, essentially Mexico). A lot of the very similar species are next to each other, which is of course helpful. I’d rank it pretty darn good, so let’s see if the next butterfly season presents me some puzzlers to solve with this book.

Princeton University Press has really gone in hard for the field guide market. A brand new addition is the Field Guide to the Flower Flies of Northeastern North America. They profile over 400 fly species, mostly using museum specimens with some photos of live insects in situ. This is a case where drawings might have worked better, but that would have taken a monumental effort. As in many examples of the varied world of Insecta, some species can’t be identified beyond genus level without the body in hand. Still, a valuable addition to the shelf, not least for telling us how many fly species are out there doing pollination.


Fraud in the Lab by Nicolas Chevassus-au-Louis, translated by Nicholas Elliot, is quite important. This should be read by everybody, but especially people in the science communication business, whose job it is to translate scientific discoveries from the arcana of the literature to every-day language. Media hype over scientific discoveries that may be powered by ambition, prestige, and/or plain old greed are an awful combo. Was interested to see that Charles Baggage’s 1830 Reflections on the Decline of Science in England had a taxonomy of scientific fraud that still holds up.

On the to-do list:


Ahab’s Rolling Sea: A Natural History of Moby Dick by Richard J. King. King’s two other books suggest this one will be fun.

Tarka The Otter, by Henry Williamson, coming in April. First published in 1927 and never made into Disney codswallop because it makes Watership Down look like a bunny story. It’s really a re-telling of the First World War with an otter and a hunting dog for veteran Henry Williamson and the Hun. Just add a T to Hun and you get hunt: otter hunting used to be a thing in the UK. From 1900-1950, some 200 a year were killed in sanctioned hunts; as these are official numbers, this is probably an undercount. The population was halved during the 1960s. Only about 8 a year were hunted into the early 1970s, before the wretched practice was banned. Fox hunting, meanwhile, that other orgy of upper class sadism, was finally banned in 2002 (Scotland) and 2004 (England and Wales); it’s still legal in Northern Ireland, evidently.

What’s on your natural history to-read list?

All my book notices and/or reviews are found here.

Based on DNA evidence, the Great Auk was in no danger of extinction before humans started slaughtering them. How very Megafaunal.


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