...(and what we can do about them). Although these posts are primarily sketches for a book project on environmental critique I will also post from several other ongoing projects.
Tuesday, July 17, 2012
Saturday, July 14, 2012
Wednesday, July 11, 2012
A Rhamnus cathartica sighting in Killarney, Co Kerry? Turns out to be spindle!
| Euonymus europaeus |
| Euonymus europaeus |
The species is an old friend. Because it is a problematic species from a management perspective in the US, it is hunted down and controlled (cut, poisoned and burned!) when it interferes with conservation plans for a preserve. And rightly so, I would say. However, it is attractive, hardy, and a great success in the US - my relationship with it has always been that of pupil and master, or perhaps merely envy on my part. For whatever reason, I have spent the better part of a decade interested in this shrub, though truthfully we still don't know enough about it.
Those of you who know this plant well take a look a see if you agree with me that it is, in fact, buckthorn. If it is not, I will be back in the field in the coming days. The finely toothed leaves are almost opposite. Though it is not fruiting yet the fruits are developing in clusters. Also the bark is much grayer than I am used to seeing in the Midwest.
UPDATE 22nd July 2012: - There were enough differences between this specimen and R cathartica I am used to seeing in the midwest that I spend a little time working on it with some keys later that day. With the assistance of old pals Helena Twomey and Bill Quirke (of Conservation Services) it was a much better fit for spindle (Euonymus europaeus). Fortunately I found buckthorn a few days later in Co Mayo.
Friday, July 6, 2012
Rhamnus cathartica in Ireland
A very helpful note from Dr Daniel Kelly from the Botany Department at Trinity College on the location of R cathartica in Ireland. This otherwise very attractive shrub/small tree is a management nuisance in the Midwest, especially prevalent in the Chicago Wilderness region.
Dr Kelly reports from the 'Flora of Connemara & the Burren': "Woods, scrub, river-banks, rocky lake-shores and the margins of turloughs. Locally frequent on the limestone; very rare elsewhere..." "... Very frequent ... from near Oughterard to 3 km N. of Galway ... Locally abundant by the S. shore of L. Mask. Sparingly on the shore of L. Corrib in the grounds of Ashford Castle, and frequent on several of the islands."
It will be nice to see this plant in circumstances that do not provoke indignation and death-threats!
Ireland 2012 in preparation for Ireland 2013
Many of the posts for the coming weeks will be about the
National Parks and environs of Killarney, Connemara, and Wicklow. I will travelling there in preparation for a
study abroad trip scheduled there for DePaul students. The program is co-directed by me and Randall
Honold, a colleague at DePaul. Randall's training is in philosophy, mine is in ecology: what could possibly go wrong. For more information on the trip
see here.
I will be rereading and commenting on Robert Lloyd Praeger’s
book The Way That I Went as I go. Another
book that will travel the circuit with me is Tim Robinson’s Connemara: A Little
Gaelic Kingdom (Penguin Ireland, 2011), the third in his trilogy of Connemara
books.
Thursday, July 5, 2012
Spat out of Nature by Nature: Konrad Lorenz and the Rise and Fall of Ethology
Jackdaws
(Corvus monedula), widespread crows
throughout Ireland, make delightful pets.
A school friend of mine in Dublin, Sean Farrell, kept one for a few
months back in the late 1970s when we were both in our early teens. The bird had broken its wing and Sean nursed
it back to health. The jackdaw was a
noisy fellow and had his species' penchant for shiny things. Sometime later I was happy to read that
Konrad Lorenz (1903-1989), the Austrian ethologist, published a behavioral study
of a colony of Jackdaws that he maintained and included an account of the birds
in his charming book King Solomon’s Ring. King
Solomon’s Ring, (the title is taken from the legend that Solomon had a ring
that allowed him to talk to the animals), was a popularization of the emerging science
of ethology, that is, the biological study of behaviour, and was perhaps the first
book that confirmed to me that there was a to make a living out of what I
happened to like to do.
I
progressed from the lighter but nonetheless delightful accounts of animal
behavior in King Solomon’s Ring and in
Niko Tinbergen’s Curious Naturalists
to the greater heft of Lorenz’s classic On
Aggression (1966) which I read as a zoology undergrad at University College
Dublin in the 1980s. In this book,
published later in his career when he was in his sixties, Lorenz shared his
mature analysis of how insights from the study of the instinctual behaviour of
animals can be helpful in thinking about the human condition. As we shall see, as a good Darwinian he regarded
human conduct as revealing much about our essentially animal nature, but unlike
other animals we posses, he argued, a characteristic of being able to overcome
this legacy. In fact, he deemed it
critical to our species survival that we simultaneously evaluate the evolution
of aggressiveness in a clear-headed way while we find cultural solutions to
discharging these unavoidable tendencies in a harmless way. More harmless than war, that is. Lorenz had lived through a war and he was
committed to helping humanity avoid another one on that scale.
Before
looking at the details of Lorenz’s analysis of human nature (in the post to follow
this one) a word or two about the science of ethology which emerged as biological
subdiscipline in the 20th Century under Lorenz’s and Tinbergen’s
influence. Together with Karl von
Frisch, who worked out the details on the so-called “waggle-dance” of honeybees
that allowed the hive to share information on the location of a food source,
Lorenz and Tinbergen shared the Nobel Prize (in medicine) in 1973. A primary task of ethology was to place
questions about the behaviour of animals in an evolutionary context. How does the behavior function to increase
the success of the animal; what are the triggers for the expression of that
behavior, how does the behavior develop in the life of that individual; and,
finally, what was the pattern in the evolutionary development of the behavior?[1],[2] Some regarded it as a strength of the discipline
that it simultaneously asked questions about the adaptive nature of the
behavior, the mechanism by which the behavior is displayed, and how functions in
the ecology of the organism. Critics, however, saw in this the danger that teleological
thinking could creep into the analysis: the assumption that behavior developed
to the point of ever increasing perfection as the behavior reached a
preordained goal.
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