Nov 1, 2017

Smaller forests are hurting some species and helping others

A forest fragment. Photo: Carlos Peres

Human encroachment into forests that is parceling dense forestry into smaller and smaller areas called forest edges, is affecting 85% of forest vertebrates — sometimes positively (46%) and sometimes negatively (39%), an international team of researchers said in a study published in Nature Wednesday.

Why it matters: Study author Marion Pfeifer tells Axios it's "fair to say that we did not expect to find a relatively high proportion of species actually 'winning' when forest fragmentation occurs. However, we do emphasize that the species that lose out under forest fragmentation, i.e. the species we call forest core species...are more likely to be species that are already of conservation concern."

Study details: Funded by the EU's European Research Council, the team examined 1,673 species of arboreal vertebrates on five continents over a five-year period. They created and used two new measurements to quantify the abundance of each of the 1,673 species around the world and any chances determined by how close they were to the edge of forests.

The findings:

  • 85% of the species analyzed were impacted by forest fragmentation and in particular edge effects.
  • 39% of those need the dense forest core to survive and are being squeezed into smaller areas. "This leads to some of them becoming endangered, such as the Sunda pangolin," Pfeifer said.
  • 46% of those like conditions at the edges and are thriving, she said, while adding "these species are not necessarily ones that benefit the local ecosystem." Predators sometimes thrive on the edge since the conditions makes it easier to locate their prey.

Powerful approach: Deanna Olson, research ecologist for the U.S. Forest Service who was not part of this study, tells Axios: "The importance of this lens on habitat degradation cannot be overemphasized."

"[This] is a powerful approach to examine patterns of biodiversity responses to forest edge effects. This mirrors approaches being used for examining effects of climate change projections or disease on species, but is novel for application to habitat fragmentation," Olson said.

Limitations and applications: However, Olson pointed out not all forests are simply an edge and a core. For example, she said in the Pacific Northwest forests of North America, changes in topography plus natural disturbances like landslides or fires make the forests more complex and potentially more sensitive to human-derived fragmentation. She says these areas should be studied further.

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Top Trump ally sounds 2020 election alarm over coronavirus response

Photo: Jim Watson/AFP via Getty Images

There is growing concern among top conservative leaders that the Trump administration isn't addressing the long-term economic impact of the coronavirus, several sources tell Axios. One top adviser said if the recovery is bungled it could cost President Trump the election.

What we're hearing: "The next 4-8 weeks is really going to decide whether Trump gets reelected," Stephen Moore, Trump's former nominee for the Federal Reserve board, told Axios. If the administration mishandles its economic recovery efforts, he said, Trump is "in big trouble."

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Global: Total confirmed cases as of 10 p.m. ET: 1,600,427 — Total deaths: 95,506 — Total recoveries: 354,006Map.
  2. U.S.: Total confirmed cases as of 10 p.m. ET: 465,329 — Total deaths: 16,513 — Total recoveries: 25,410Map.
  3. Public health latest: U.S. has expelled thousands of migrants under a CDC public health orderDr. Anthony Fauci said social distancing could reduce the U.S. death toll to 60,000.
  4. Business latest: The Fed will lend up to $2.3 trillion for businesses, state and city governments — After another 6.6 million jobless claims, here's how to understand the scale of American job decimation.
  5. 2020 latest: Top conservative leaders are concerned the Trump administration isn't addressing the virus' long-term economic impact.
  6. States latest: FEMA has asked governors to decide if they want testing sites to be under state or federal control.
  7. World latest: Lockdowns have led to a decline in murders in some of the world's most violent countries — Boris Johnson is moved out of the ICU but remains in hospital with coronavirus.
  8. In Congress: Senate in stalemate over additional funding for small business relief program.
  9. 1 SNL thing: "Saturday Night Live" will return this weekend in a remotely produced episode.
  10. What should I do? Hydroxychloroquine questions answeredPets, moving and personal healthAnswers about the virus from Axios expertsWhat to know about social distancingQ&A: Minimizing your coronavirus risk.
  11. Other resources: CDC on how to avoid the virus, what to do if you get it.

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Federal court temporarily blocks coronavirus order against some abortions

Gov. Greg Abbott. Photo: Tom Fox-Pool/Getty Images

A federal judge ruled Thursday that clinics in Texas can immediately offer medication abortions — a pregnancy termination method administered by pill — and can also provide the procedure to patients nearing the state's time limits for abortions.

Driving the news: The decision comes after federal appeals court ruled 2-1 on Tuesday in favor of an executive order by Republican Gov. Greg Abbott that prohibits abortions during the coronavirus outbreak.

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