Coffee-leaf rust (Hemileia vastatrix , la roya) hasn’t gone away, and threatens to clobber coffee plantations.
- Converting 35% of the acreage of a coffee farm to shade-grown culture can maximize revenue, according to new research by Amanda Rodewald et al. and summarized by Gustave Axelson. Depending on the premium paid for shade-grown coffee, that percentage can go as high as 85%.
- A smartphone attachment can test for the presence of norovirus in a drinking water sample and produce results in five minutes. The promising prototype comes from the biomedical engineering lab of Jeong-Yeol Yoon. Joe Palca reports.
In the wake of hurricanes and other storms, flooding can cause sewage systems to overflow, potentially mixing with water intended for drinking. Municipal water system managers would breathe easier if they could be certain they didn’t have to worry at all about norovirus contamination.
- How to cross a river. The water at Huntley Meadows Park is never this fast or cold.
- Melissa Errico submits a “self-tape” audition.
A roundup of coffee agriculture-related stories:
- Falling prices are leading coffee farmers in Guatemala to abandon their farms and relocate to the United States, as Kevin Sieff reports.
- The picture is similarly grim in Colombia, with farmers beset by global heating and unfavorable markets, per Richard Schiffman.
- Agroforestry of coffee and cocoa will be clobbered by losses of fruit, timber, and nitrogen-fixing trees, according to a new paper by Kauê de Sousa et al.
- So what’s really the difference between arabica and robusta?
- Sustainable baseball bats.
- The monster pear tree, featuring my teacher Carole Bergmann.
- Alexei Lubimov plays C.P.E. Bach on a tangent piano.
Richard Conniff makes the case for a carbon tax on beef.
Agriculture, including cattle raising, is our third-largest source of greenhouse gas emissions, after the energy and industrial sectors.
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Beef and dairy cattle together account for an outsize share of agriculture and its attendant problems, including almost two-thirds of all livestock emissions,….
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The emissions come partly from the fossil fuels used to plant, fertilize and harvest the feed to fatten them up for market. In addition, ruminant digestion causes cattle to belch and otherwise emit huge quantities of methane [a much stronger greenhouse gas than carbon dioxide].
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The way feedlots and other producers manage manure also ensures that cattle continue to produce methane long after they have gone to the great steakhouse in the sky.
Integrated pest management in Israel teams up with cross-border cooperation, as Josie Glausiusz reports.
Some links, Coffee and Birds Edition:
- Jodi Helmer reports on the nascent coffee industry in California. Even in this non-tropical climate, at least one farmer is going the shade-grown route:
Andy Mullins of Mullins Family Farm in Temecula… planted 1,000 coffee trees under the canopies of the avocado trees on his 4-acre farm.
- A study from India by Charlotte H. Chang et al. indicates that coffee plantations given over to robusta supported nearly the same level of biodiversity as arabica farms, as summarized by the Wildlife Conservation Society.
From the coffee and birds file: Juan Medrano et al. at the University of California, Davis have published the genome of Coffea arabica.
- A stunning 30-minute video documenting the end of Linotyping at the New York Times in 1978.
- Gabrielle Emmanuel’s series, “Unlocking Dyslexia,” begins with its definition.
- A lovely 5-minute video visit by Amanda Rodewald and Nick Bayly to a coffee finca: what’s the connection between shade-grown coffee and our neotropical migrants?
Gustave Axelson reminds us of the shade coffee-and-birds connection. His visit to a farm owned by Veronica Sanchez and her family is particularly heartening.
Why?, I ask Sanchez. Why do all this, preserving and planting trees and messing with plastic bottle traps, and forgo the money in the here-and-now that her neighbor is getting?
“We use good practices and we have a peace of mind knowing we are producing something of organic quality,” if not certified organic, she said.
“If we apply poisons to the coffee, we also poison the animals from the land and sky, such as insects and birds, and in turn we pollute the water.” And that affects everything from her family to the people who drink her coffee, she said.
“Por eso son malas prácticas,” she said. These are malpractices.
Species preservation and coffee agriculture meet: Ed Yong explains the conservation prospects for the Red Siskin (Spinus cucullata).
Stephanie Strom visits a big soybean/corn agricultural complex (spanning two states) and finds a old school farm practice that improves soil quality, reduces sediment runoff, and improves yields: cover crops.
Birds, habitat, coffee agriculture—and 10 ways of looking at Northern Virginia.
- Rex Graham summarizes the research of Daniel Karp, who established the link between insectivorous birds on coffee plantations and control of the Coffee Berry Borer (Hypothenemus hampei).
- Ted Floyd goes birding at Bon Secour NWR and reminds us of the differences between National Parks and National Wildlife Refuges.
- Alonso Abugattas gives a shout-out for the most awesomest North American anatid, the Wood Duck.
A reminder from BirdNote, with resource links, that shade-grown coffee is always a good idea.
A mini-roundup of bird-related links:
- Alan Neuhauser reports estimates of avian mortality attributable to various energy sources. Although wind takes a toll, the big killer, on an absolute basis, is coal. It would be interesting to see this data on a per-kWh basis.
- GrrlScientist summarizes recent research that indicates certain bird species do better in areas under more intensive agriculture that leaves some patches undisturbed (so-called “land-sparing farming”) while others to better under “land-sharing” (e.g., intercropping in a shade-grown coffee plantation).