European
Conference on Ecological Restoration 2012, Budejovice, Czech Republic
The first
day of ECER 2012 was filled with only plenary talks. Richard Hobbs who co-authored
the Davies et al 2011 paper “Don´t judge species based on their origin”
defended their paper that received a lot of criticism among people who did not
like the approach of accepting novel ecosystems with invasive species as the
new normal. My general reflection of this paper is that I don´t understand what
is so controversial about it. The paper basically states that invasive species
should not be eradicated, unless they are a problem, in which case they should
be eradicated. Professor Hobbs warned about what he saw as a trend that the
sound-bite society with polarized camps on most debates, with few taking a
middle ground is moving from the mainstream media to the scientific debate. He
stated that he does not mean that we should give up on invasive species, but if
we are struggling with getting rid of the species and e.g. repeatedly use
pesticides, we should ask ourselves “What are we doing?”. One person in the
audience commented that his ideas are not controversial among managers who are
the ones who have to do the work. Professor Hobbs agreed, and said that the
problems are the academics.
Professor
James Aronson spoke about Natural capital and Ecosystem services.
Natural
capital is the stock e.g. natural and near natural ecosystems and their
biodiversity. The ecosystem services represent the dividend (flux) that flow
from Natural capital. Although I generally like the concept of Ecosystem
services, and agree with that we need to put a price tag on nature to be able
to explain what the loss of an ecosystem service would cost, I see a big
problem with this. No matter how high the value of an ecosystem service is (climate
regulation from wetlands by carbon storage), this value is still fictional as
long as someone can destroy the asset without having to pay for it. If I break
your computer, I will have to pay for it. If I start a coal-power plant, I will
not have to pay for changing the climate or the contribution to premature
deaths nearby the power-plant, no matter how valuable clean air is. That is, polluters
don´t pay.
Rudy van
Diggelen finished the day with a fiery talk, where he asked where SER Europe is
now that big changes are occurring in EU Nature legislation. He mentioned the
EU 2020 biodiversity targets that include a statement that 15% of the degraded
areas should be restored. This is a remarkable statement, if one thinks like I
do, that most of Europe is a degraded ecosystem he continued. He was also
worried about the focus on the hyped term resilience that is gaining foothold
in EU nature legislation. This concept, although not new, has gotten a lot of
attention recently, and there is for example a research institute in Stockholm
that focuses on resilience science. The host, Karel Prach strongly urged people
to not use the term resilience, and Professor Hobbs has stated that resilience
risks leading to conceptual mudding without providing an operational utility.
Rudy named an example were EU environmental subsidies had gone to transform a
potato-field into a golf-course, and the argument given has been that “Well, a
golf-course is a much more resilient ecosystem than a potato-field. We need, to
have answers to this, otherwise we will just be standing on the sideline only being
able to later say “I told you so”. I personally do not see the term resilience
as a threat, and I think Elmqvist et al´s (2003) paper shows clearly how the
concept of resilience is useful.
The day finished with a welcoming dinner, and a mandatory Budweiser Budvar.
The day finished with a welcoming dinner, and a mandatory Budweiser Budvar.
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