Category Archives: population dynamics

Discordant harmonies in views of natural systems by The Sierra Club and others

This essay was first publish at the blog of the Green Congregation Committee, First Parish in Needham, on the Parish Realm Web site and communications board. The views obviously are those only of its author, not of First Parish or … Continue reading

Posted in Anthropocene, Association to Preserve Cape Cod, biology, Buckminster Fuller, Carl Safina, civilization, coastal communities, conservation, Daniel B Botkin, discordant harmonies, ecological disruption, ecological services, Ecological Society of America, ecology, environment, field biology, field science, First Parish in Needham, forest fires, fragmentation of ecosystems, Gaylord Nelson, George Sugihara, invasive species, Lotka-Volterra systems, marine biology, Nature's Trust, Peter del Tredici, philosophy of science, population biology, population dynamics, quantitative biology, quantitative ecology, riverine flooding, shorelines, stream flow, sustainability, sustainable landscaping, unreason, water, wishful environmentalism | Tagged | Leave a comment

New Meetup: Massachusetts Mosses and Lichens

I have started a new Meetup group: Massachusetts Mosses and Lichens. I am inviting anyone with an interest in mosses and lichens to join in, particularly if you live in the “greater Massachusetts area”. Because of pandemic, there’ll be no … Continue reading

Posted in ABLS, American Bryological and Lichenological Society, American Statistical Association, biology, Botany, Brent Mishler, bryology, bryophytes, citizen data, citizen science, ecology, field biology, field research, field science, Hale Reservation, Janice Glime, Jerry Jenkins, lichenology, lichens, longitudinal survey of mosses, macrophotography, maths, mesh models, mosses, Nancy G Slack, National Phenology Network, population biology, population dynamics, Ralph Pope, science, spatial statistics, statistical ecology, Sue Williams, the right to know, Westwood | Leave a comment

Phase Plane plots of COVID-19 deaths with uncertainties

I. Introduction. It’s time to fulfill the promise made in “Phase plane plots of COVID-19 deaths“, a blog post from 2nd May 2020, and produce the same with uncertainty clouds about the functional trajectories(*). To begin, here are some assumptions … Continue reading

Posted in American Statistical Association, Andrew Harvey, anomaly detection, count data regression, COVID-19, dependent data, dlm package, Durbin and Koopman, dynamic linear models, epidemiology, filtering, forecasting, Kalman filter, LaTeX, model-free forecasting, Monte Carlo Statistical Methods, numerical algorithms, numerical linear algebra, population biology, population dynamics, prediction, R, R statistical programming language, regression, statistical learning, stochastic algorithms | Tagged | Leave a comment

dead bodies vs economic integrity

From The Financial Times.

Posted in pandemic, population biology, population dynamics, SARS-CoV-2 | Leave a comment

COVID-19 statistics, a caveat : Sources of data matter

There are a number of sources of COVID-19-related demographics, cases, deaths, numbers testing positive, numbers recovered, and numbers testing negative available. Many of these are not consistent with one another. One could hope at least rates would be consistent, but … Continue reading

Posted in coronavirus, count data regression, COVID-19, descriptive statistics, epidemiology, pandemic, policy metrics, politics, population biology, population dynamics, quantitative biology, quantitative ecology, sampling, SARS-CoV-2, statistical ecology, statistical series, statistics | 2 Comments

“Seasonality of COVID-19, Other Coronaviruses, and Influenza” (from Radford Neal’s blog)

Thorough review with documentation and technical criticism of claims of COVID-19 seasonality or its lack. Whichever way this comes down, the links are well worth the visit! Will the incidence of COVID-19 decrease in the summer? There is reason to … Continue reading

Posted in COVID-19, differential equations, diffusion, diffusion processes, epidemiology, Lotka-Volterra systems, meteorology, pandemic, population biology, population dynamics, Radford Neal, SARS-CoV-2, statistics | Leave a comment

What happens when time sampling density of a series matches its growth

This is the newly updated map of COVID-19 cases in the United States, updated, presumably, because of the new emphasis upon testing: How do we know this is the recent of recent testing? Look at the map of active cases: … Continue reading

Posted in American Association for the Advancement of Science, American Statistical Association, anti-intellectualism, anti-science, climate denial, corruption, data science, data visualization, Donald Trump, dump Trump, epidemiology, experimental science, exponential growth, forecasting, Kalman filter, model-free forecasting, nonlinear systems, open data, penalized spline regression, population dynamics, sampling algorithms, statistical ecology, statistical models, statistical regression, statistical series, statistics, sustainability, the right to know, the stack of lies | 1 Comment

Meteorological Spring, and the Atlantic’s primary producers are jumping the phenological gun

Primary producers These are from NASA’s Aqua-MODIS, meaning, Aqua satellite, MODIS instrument: (Click image to see a larger figure.) (Click image to see a larger figure.) (h/t Earth Observatory at NASA) See my related blog post. And, note, it’s all … Continue reading

Posted in NASA, oceans, phenology, plankton, population biology, population dynamics, primary productivity | Leave a comment

Reanalysis of business visits from deployments of a mobile phone app

Updated, 20th October 2020 This reports a reanalysis of data from the deployment of a mobile phone app, as reported in: M. Yauck, L.-P. Rivest, G. Rothman, “Capture-recapture methods for data on the activation of applications on mobile phones“, Journal … Continue reading

Posted in Bayesian computational methods, biology, capture-mark-recapture, capture-recapture, Christian Robert, count data regression, cumulants, diffusion, diffusion processes, Ecological Society of America, ecology, epidemiology, experimental science, field research, Gibbs Sampling, Internet measurement, Jean-Michel Marin, linear regression, mark-recapture, mathematics, maximum likelihood, Monte Carlo Statistical Methods, multilist methods, multivariate statistics, non-mechanistic modeling, non-parametric statistics, numerics, open source scientific software, Pierre-Simon Laplace, population biology, population dynamics, quantitative biology, quantitative ecology, R, R statistical programming language, sampling, sampling algorithms, segmented package in R, statistical ecology, statistical models, statistical regression, statistical series, statistics, stepwise approximation, stochastic algorithms, surveys, V. M. R. Muggeo | 1 Comment

More reasons why centralized grids and ISOs/RTOs cannot be trusted, with an afterthought

From Inside Climate News and I’m sure it’ll eventually show up at Legal Planet, where they touched the matter over a year ago: The new rules, approved by the Federal Energy Regulatory Commission, are designed to counteract state subsidies that … Continue reading

Posted in American Solar Energy Society, an ignorant American public, an uncaring American public, Ørsted, Berkeley Haas Energy, Bloomberg New Energy Finance, bridge to somewhere, Carbon Worshipers, children as political casualties, clean disruption, CleanTechnica, corporate litigation on damage from fossil fuel emissions, Cult of Carbon, decentralized electric power generation, decentralized energy, demand-side solutions, destructive economic development, distributed generation, ecomodernism, ecopragmatism, electric vehicles, electrical energy storage, electricity, electricity markets, emissions, energy levy, energy storage, fossil fuel infrastructure, green tech, Green Tech Media, greenhouse gases, grid defection, Hermann Scheer, Hyper Anthropocene, IEEE, investment in wind and solar energy, ISO-NE, Karl Ragabo, leaving fossil fuels in the ground, local generation, local self reliance, Mark Jacobson, Massachusetts Clean Energy Center, Mathematics and Climate Research Network, Michael Bloomberg, National Renewable Energy Laboratory, population dynamics, public utility commissions, PUCs, rate of return regulation, regulatory capture, solar democracy, solar domination, solar energy, solar power, solar revolution, SunPower, the green century, the right to be and act stupid, the right to know, the tragedy of our present civilization, the value of financial assets, Tony Seba, tragedy of the horizon, utility company death spiral, Westwood, wind energy, wind power, zero carbon | Leave a comment

Handel, 2018, “As the seas rise, can we restore our coastal habitats?”

Professor Steven Handel presents: Hint, hint: A subtle plug for allowing evolutionary dominance to advance, including permitting hearty invasive species to Do Their Thing. Indeed, it is my opinion, that the supposed plague of “invasive species” and associated regulations is … Continue reading

Posted in agroecology, Aldo Leopold, an ignorant American public, an uncaring American public, Anthropocene, argoecology, Botany, bridge to somewhere, Cape Cod, Commonwealth of Massachusetts, corporations, corruption, ecological disruption, Ecological Society of America, ecology, ecopragmatism, environment, environmental law, evolution, fragmentation of ecosystems, greenwashing, herbicides, Humans have a lot to answer for, Hyper Anthropocene, invasive species, living shorelines, Nature, pesticides, Peter del Tredici, population biology, population dynamics, quantitative biology, quantitative ecology, regulatory capture, shorelines, sustainability, sustainable landscaping, the green century, the tragedy of our present civilization, tragedy of the horizon, wishful environmentalism, yves tille | Leave a comment

A proposal: Challenge for the Green New Deal

There is a climate emergency. There are many ways of looking at this, from the big investments perspective (see also a Fed view), to human harms perspective (see also), to what it might cost to reverse these changes if they … Continue reading

Posted in alternatives to the Green New Deal, American Association for the Advancement of Science, American Chemical Society, American Meteorological Association, American Solar Energy Society, American Statistical Association, Amory Lovins, Anthropocene, basic research, Bloomberg New Energy Finance, bridge to somewhere, carbon dioxide, carbon dioxide capture, cement production, Clausius-Clapeyron equation, clear air capture of carbon dioxide, climate, climate business, climate change, climate data, climate disruption, climate economics, climate education, Climate Lab Book, ClimateAdam, consumption, David Archer, decentralized energy, demand-side solutions, ecological disruption, ecomodernism, ecopragmatism, electric vehicles, electrical energy storage, electricity, energy storage, environment, flooding, floods, food, food scarcity, geoengineering, geophysics, Glen Peters, Global Carbon Project, global warming, insurance, investing, investment in wind and solar energy, investments, leaving fossil fuels in the ground, local self reliance, National Center for Atmospheric Research, Our Children's Trust, planning, policy metrics, politics, population biology, population dynamics, radiative forcing, rationality, real estate values, rhetorical statistics, science, stream flow, sustainability, SVD, the right to know, UU Ministry for Earth, UU Needham, zero carbon, ZigZag | Leave a comment

Eli, who offers a clever and consistent consumption-based accounting scheme. Consumption-based Carbon accounting: Does it have a future? Consumption-based accounting of CO2 emissions

Posted on by ecoquant | Leave a comment

What if Juliana v United States fails?

This is a replica of a comment I made at another site. As of 23:55 EST on 21st January, it hasn’t been release from moderation. Perhaps the moderator is busy. I do not know. I am proceeding as if it … Continue reading

Posted in an ignorant American public, an uncaring American public, Anthropocene, being carbon dioxide, Boston Ethical Society, carbon dioxide capture, clear air capture of carbon dioxide, climate, climate business, climate change, climate disruption, climate economics, corporate litigation on damage from fossil fuel emissions, corporate supply chains, corporations, ecological disruption, ecomodernism, economics, ecopragmatism, environment, environmental law, extended producer responsibility, extended supply chains, First Parish Needham, fossil fuel divestment, fossil fuels, global warming, greenhouse gases, Hyper Anthropocene, investment in wind and solar energy, Juliana v United States, leaving fossil fuels in the ground, Mary C Wood, optimization, Our Children's Trust, pollution, population biology, population dynamics, Principles of Planetary Climate, quantitative biology, quantitative ecology, radiative forcing, rationality, reasonableness, sea level rise, sustainability, the tragedy of our present civilization, tragedy of the horizon, United States Constitution, United States Government, UU, UU Needham, zero carbon | Leave a comment

Aldo Leopold

We end, I think, at what might be called the standard paradox of the twentieth century: our tools are better than we are, and grow better faster than we do. They suffice to crack the atom, to command the tides. … Continue reading

Posted in Aldo Leopold, dynamical systems, ecological services, Ecological Society of America, ecology, Ecology Action, fragmentation of ecosystems, Lotka-Volterra systems, population biology, population dynamics | Leave a comment

Sustainable Landscaping

Update: 2018-05-26 It’s not about plants, not entirely. But it seems that, in one agricultural area, pollinators (bees) under stress have ceded their pollinating responsibility to a couple of species of exotic (read invasive) flies. See: J. R. Stavert, D. … Continue reading

Posted in adaptation, American Association for the Advancement of Science, argoecology, biology, Botany, Carl Safina, complex systems, conservation, ecological services, Ecological Society of America, ecology, Ecology Action, environment, fragmentation of ecosystems, invasive species, land use to fight, living shorelines, New England, population biology, population dynamics, quantitative biology, quantitative ecology, sustainability, sustainable landscaping, water as a resource | 4 Comments

“Carbon emissions and climate: Where do we stand, and what can be done if it all goes wrong?”

On Sunday, 11th February 2018, I presented an Abstract of a 3 hour talk on the subject, “Carbon emissions and climate: Where do we stand, and what can be done if it all goes wrong?” at the Needham Lyceum, hosted … Continue reading

Posted in Anthropocene, being carbon dioxide, Carbon Cycle, carbon dioxide, carbon dioxide capture, carbon dioxide sequestration, Carbon Tax, civilization, clear air capture of carbon dioxide, climate, climate change, climate disruption, COP21, Cult of Carbon, differential equations, dynamical systems, ecology, emissions, environment, exponential growth, fossil fuel divestment, fossil fuel infrastructure, fossil fuels, geoengineering, geophysics, Glen Peters, Global Carbon Project, global warming, greenhouse gases, Humans have a lot to answer for, Hyper Anthropocene, investments, James Hansen, Kerry Emanuel, liberal climate deniers, Mark Carney, Michael Bloomberg, Minsky moment, mitigation, nonlinear, nonlinear systems, oceanography, phytoplankton, population biology, population dynamics, precipitation, Principles of Planetary Climate, quantitative biology, quantitative ecology, radiative forcing, rationality, Ray Pierrehumbert, risk, sea level rise, sociology, stranded assets, supply chains, sustainability, T'kun Olam, the right to be and act stupid, the right to know, the tragedy of our present civilization, the value of financial assets, thermohaline circulation, tragedy of the horizon, unreason, UU, UU Needham, Wally Broecker, zero carbon | Leave a comment

on nonlinear dynamics of hordes of people

I spent a bit of last week at a symposium honoring the work of Charney and Lorenz in fluid dynamics. I am no serious student of fluid dynamics. I have a friend, Klaus, an engineer, who is, and makes a … Continue reading

Posted in Anthropocene, bifurcations, biology, Carl Safina, causation, complex systems, dynamic generalized linear models, dynamic linear models, dynamical systems, ecological services, ecology, Emily Shuckburgh, finance, Floris Takens, fluid dynamics, fluid eddies, games of chance, Hyper Anthropocene, investments, Lenny Smith, Lorenz, nonlinear, numerical algorithms, numerical analysis, politics, population biology, population dynamics, prediction markets, Principles of Planetary Climate, public transport, Ray Pierrehumbert, risk, sampling networks, sustainability, Timothy Lenton, Yale University Statistics Department, zero carbon, ``The tide is risin'/And so are we'' | 1 Comment

`How old is today?` (Carl Safina)

How old is today? light comes from everywhere and from nowhere. The ocean, glittering then vanishing in gauzy vapors, handles us more gently than anyone could have hoped. Snow flurries in and hurries out. Mists veil coasts so raw, so … Continue reading

Posted in Antarctica, Anthropocene, biology, Carl Safina, Charles Darwin, coastal communities, coasts, ecological services, Ecological Society of America, ecology, Ecology Action, Henry David Thoreau, humanism, Hyper Anthropocene, Nature, population biology, population dynamics | 1 Comment

Results of short literature search on impacts of climate change upon ecosystems and bird or animal migration patterns, from the journals of the Ecological Society of America

I decided to do a quick literature search on the impacts of climate change upon ecosystems and migration patterns. I could have kept the list private, but why not make it public? Not all these articles are purely about the … Continue reading

Posted in adaptation, American Statistical Association, Anthropocene, biology, climate change, climate education, climate models, complex systems, differential equations, dynamic generalized linear models, dynamical systems, ecological services, Ecological Society of America, ecology, Ecology Action, environment, evidence, global warming, Hyper Anthropocene, marine biology, mass extinctions, nonlinear systems, population biology, population dynamics, quantitative biology, quantitative ecology, tragedy of the horizon | Leave a comment

Amory Lovins, 2008: `Natural Capitalism: The Next Industrial Revolution with Amory Lovins`

An excellent presentation from über successful dropout from Harvard University and Oxford University, Dr Amory Lovins, at University of California at Berkeley:

Posted in Adam Smith, affordable mass goods, American Association for the Advancement of Science, Amory Lovins, Anthropocene, Bloomberg New Energy Finance, bridge to somewhere, capitalism, climate economics, destructive economic development, ecological services, ecology, Ecology Action, economic trade, economics, environment, ILSR, internal inconsistency, Joseph Schumpeter, leaving fossil fuels in the ground, population biology, population dynamics, quantitative biology, resource producitivity, solid waste management, stranded assets, supply chains, sustainability, the green century, the right to know, the tragedy of our present civilization, the value of financial assets, transparency | Leave a comment

Statements by the Ecological Society of America on the proposed U.S. exit from the Paris Agreement, and on Climate Change

By withdrawing from the Paris Agreement on climate change, the United States is abdicating its role as the world leader in using science-based information to inform policy. Business, political, and scientific leaders the world over are condemning the decision. More … Continue reading

Posted in adaptation, American Association for the Advancement of Science, American Statistical Association, Anthropocene, argoecology, Carl Safina, climate change, climate disruption, complex systems, ecological services, ecology, Ecology Action, environment, global warming, Hyper Anthropocene, marine biology, mesh models, model-free forecasting, population biology, population dynamics, quantitative biology, quantitative ecology, science, Science magazine, Spaceship Earth, sustainability, Takens embedding theorem, the tragedy of our present civilization, the value of financial assets, tragedy of the horizon, Wordpress, zero carbon | Leave a comment

`Environmental science in a post-truth world’ (Lubchenco and Kammen)

Jane Lubchenco is a Professor at Oregon State University, and was administrator of the U.S. NOAA from 2009 through 2013, the U.S. Science Envoy for the Ocean at the State Department from 2014 to 2016, and the president of the … Continue reading

Posted in Akaike Information Criterion, American Association for the Advancement of Science, American Statistical Association, being carbon dioxide, Buckminster Fuller, climate, climate change, coastal communities, coasts, ecological services, ecology, environment, environmental law, evidence, global warming, Humans have a lot to answer for, Hyper Anthropocene, ignorance, Jane Lubchenco, marine biology, mass extinctions, population biology, population dynamics, quantitative biology, quantitative ecology, risk, science, Spaceship Earth, sustainability, T'kun Olam, temporal myopia, the tragedy of our present civilization | Leave a comment

Enough Already

“If you’re in a hole, stop digging.” “The Sky’s Limit: Why the Paris Climate Goals Require a Managed Decline of Fossil Fuel Production”

Posted in Anthropocene, Bloomberg New Energy Finance, bridge to nowhere, climate change, climate disruption, corporate litigation on damage from fossil fuel emissions, fossil fuel divestment, fossil fuels, games of chance, global warming, Hyper Anthropocene, investing, leaving fossil fuels in the ground, Mathematics and Climate Research Network, natural gas, population biology, population dynamics, Principles of Planetary Climate, quantitative ecology, science, the energy of the people, the green century, the tragedy of our present civilization, the value of financial assets, wind energy, wind power, Yale University Statistics Department, zero carbon | Leave a comment

Carbon Sinks in Crisis — It Looks Like the World’s Largest Rainforest is Starting to Bleed Greenhouse Gasses

Originally posted on robertscribbler:
Back in 2005, and again in 2010, the vast Amazon rainforest, which has been aptly described as the world’s lungs, briefly lost its ability to take in atmospheric carbon dioxide. Its drought-stressed trees were not growing…

Posted in bifurcations, carbon dioxide, carbon dioxide sequestration, changepoint detection, climate, climate change, climate disruption, disruption, dynamical systems, environment, exponential growth, fossil fuels, geophysics, global warming, IPCC, Lévy flights, Lorenz, Minsky moment, model-free forecasting, physics, population biology, population dynamics, Principles of Planetary Climate, quantitative biology, quantitative ecology, random walk processes, Ray Pierrehumbert, reason, reasonableness, regime shifts, risk, Stefan Rahmstorf, the right to be and act stupid, the tragedy of our present civilization, UU Humanists | 2 Comments

Bayesian blocks via PELT in R

Notice of Update I have made some changes to the Bayesian Blocks code linked from here, on 24th November 2021. Also I note the coming and going of a “BayesianBlocks” package on CRAN which contained an optinterval function also based upon … Continue reading

Posted in American Statistical Association, AMETSOC, anomaly detection, astrophysics, Cauchy distribution, changepoint detection, engineering, geophysics, multivariate statistics, numerical analysis, numerical software, numerics, oceanography, population biology, population dynamics, Python 3, quantitative biology, quantitative ecology, R, Scargle, spatial statistics, square wave approximation, statistics, stepwise approximation, time series, Woods Hole Oceanographic Institution | 3 Comments

“Stochastic Parameterization: Towards a new view of weather and climate models”

Judith Berner, Ulrich Achatz, Lauriane Batté, Lisa Bengtsson, Alvaro De La Cámara, Hannah M. Christensen, Matteo Colangeli, Danielle R. B. Coleman, Daan Crommelin, Stamen I. Dolaptchiev, Christian L.E. Franzke, Petra Friederichs, Peter Imkeller, Heikki Järvinen, Stephan Juricke, Vassili Kitsios, François … Continue reading

Posted in biology, climate models, complex systems, convergent cross-mapping, data science, dynamical systems, ecology, Ethan Deyle, Floris Takens, George Sughihara, Hao Ye, likelihood-free, Lorenz, mathematics, meteorological models, model-free forecasting, physics, population biology, population dynamics, quantitative biology, quantitative ecology, Scripps Institution of Oceanography, state-space models, statistical dependence, statistics, stochastic algorithms, stochastic search, stochastics, Takens embedding theorem, time series, Victor Brovkin | 4 Comments

“Catching long tail distribution” (Ted Dunning)

One of the best presentations on what can happen if someone takes a naive approach to network data. It also highlights what is, to my mind, the greatly underappreciated t-distribution, which is typically only used in connection with frequentist Student … Continue reading

Posted in Cauchy distribution, complex systems, data science, Lévy flights, leptokurtic, mathematics, maths, networks, physics, population biology, population dynamics, regime shifts, sampling, statistics, Student t distribution, time series | Leave a comment

Ray Kurzweil predicts dominance of energy industry by Solar in 12 years

Read it and weep, Carbon Worshippers. Facts are, with so much cheap solar electricity around, even if its supply is uneven in any particular locale, (a) the energy storage business will have big incentives to roll out, and roll out … Continue reading

Posted in Anthropocene, Bill Nye, Bloomberg, Bloomberg New Energy Finance, BNEF, bridge to somewhere, Carbon Worshipers, citizenship, civilization, clean disruption, decentralized electric power generation, decentralized energy, demand-side solutions, destructive economic development, distributed generation, economics, efficiency, electricity, energy, engineering, environment, exponential growth, forecasting, fossil fuel divestment, fossil fuels, grid defection, Hermann Scheer, Hyper Anthropocene, investment in wind and solar energy, liberal climate deniers, local generation, planning, politics, population dynamics, public utility commissions, PUCs, quantitative ecology, rate of return regulation, rationality, Ray Kurzweil, reasonableness, regime shifts, regulatory capture, Sankey diagram, solar domination, solar energy, Solar Freakin' Roadways, solar power, SolarPV.tv, Stanford University, sustainability, the energy of the people, the green century, the value of financial assets, Tony Seba, utility company death spiral, wind energy, wind power, zero carbon | Leave a comment

Of my favorite things …

(Clarifying language added 4 Apr 2016, 12:26 EDT.) I just watched an episode from the last season of Star Trek: The Next Generation entitled “Force of Nature.” As anyone who pays the least attention to this blog knows, opposing human … Continue reading

Posted in Anthropocene, bridge to somewhere, bucket list, Buckminster Fuller, Carl Sagan, climate, climate change, climate disruption, climate education, compassion, data science, Earle Wilson, ecology, Ecology Action, environment, evolution, geophysics, George Sughihara, global warming, Hyper Anthropocene, life purpose, mathematics, mathematics education, maths, numerical analysis, optimization, philosophy, physical materialism, physics, population biology, population dynamics, proud dad, quantitative biology, quantitative ecology, rationality, reasonableness, science, sociology, statistics, stochastic algorithms | 5 Comments