Re: Maldaptation, Extinction and Natural selection

Jim writes: Sure, natural selection can be occurring while extinction is taking place, but the extinction is NOT the result of natural selection. If you don't wish to buy my examples, which I'll certainly stand by, it nevertheless might be useful to remember that Darwin labeled one of his

Re: Questioni: what would a bankrupt U.S. government mean for wildlife conservation

This is a really interesting document and question Stan raises. Conservation faces an unfortunate dilemma – funding is often easier to get during “good” economic times, yet a hypercharged economy does quite a bit of damage to the systems we’re trying to study/protect/restore. If you doubt the

estimating points from published figures?

Hello all, I'm trying to estimate points from some very old (40s and 50s) published = figures. I'm currently measuring them with a digital caliper, which is = very time consuming and error prone. i'm curious if anyone is aware of a digital method, like where I could = scan the figure and then

Measuring the Caribbean Barrel Sponge (Xestospongia)

I am interested in the growth of the Caribbean Barrel Sponge Xestospongia muta. In order to measure it I plan to insert a material to measure the diameter at certain heights along the body. I was wondering how inserting this material (possibly 3mm or wider) may affect the growth of the

Field Technician Position

POSITION ANNOUNCEMENT Rank: Technician I (H4M1IX) or Technician II (H4M2TX) Opening Date: Immediately Closing Date: 14 August 2005 (or later if positions not filled) Period of Appointment: 1 September 2006 through 28 February 2007 Salary: Approximately $11.64 (Technician I) or $13.46

field technician position in Florida panhandle

NATURAL RESOURCE SPECIALIST 1 POSITIONS AVAILABLE, Virginia Tech University. These are long-term positions with full benefits through Virginia Tech University. Work location is Eglin Air Force Base, Florida. Will work as part of a team with project PIs (Jeff Walters and Carola Haas),

Re: Maldaptation, Extinction and Natural selection

Wirt, I will certainly disagree here! Friendly disagreement, of course. In my continuing bid to become the group's curmudgeon, Since there are no other candidates, I guess you will be elected! :-) Natural selection judges only whatever advantages it finds in populations in the moment. What

Re: Maldaptation, Extinction and Natural selection

Jim writes: Sorry, the scenario is to poorly defined to say anything about it, and there is probably no contradiction. But, there is also no reason to think that natural selection is always in action. And, certainly, natural selection CANNOT select for extinction. In my continuing

Postdoctoral position-Seed dispersal in a fragmented landscape

POSITION ANNOUNCEMENT – POSTDOCTORAL RESEARCH ASSOCIATE Department of Ecology, Evolution Environmental Biology Columbia University Quantifying seed dispersal by birds in a fragmented tropical landscape A post-doctoral position is available to work with Dr Maria Uriarte (Columbia University)

Re: Maldaptation, Extinction and Natural selection

Perhaps there are valid points on both sides of this argument: James J. Roper, Ph.D. wrote: Natural selection is not a judge. It is only differential representation of genes in subsequent generations, in which more successful genes become more common from one generation to the next.

Re: estimating points from published figures?

Hi Jean, I currently use g3d graph analyzer http://www.frantz.fi/index.php?page=software Cheers, Stefano data_pir8 wrote: Hello all, I'm trying to estimate points from some very old (40s and 50s) published = figures. I'm currently measuring them with a digital caliper, which is = very

Re: Maldaptation, Extinction and Natural selection

Norris writes: In my continuing bid to become the group's curmudgeon, let me say that natural selection can quite easily select for extinction. I might argue a semantic point here. While you make a valid argument that past natural selection can lead to evolutionary dead ends and

Re: Maldaptation, Extinction and Natural selection

It seems to me a bit arbitrary to accept that natural selection is taking place when a certain fraction of individuals are selectively culled from a population, yet when that fraction reaches 100% that something different is necessarily going on. To be sure, the RESPONSE of a population

information needed: fences and wildlife

I am working on a guide to wildlife friendly fences for the state of Montana, and I am searching for the following information: 1. Citations for research with data on the impact of fences on wildlife mortality, populations and movements, particularly anything applicable to the western US

Call for Award Nomination

IBS Awards: Call for Nominations for the Alfred Russel Wallace Award The ARW award was established by the International Biogeography Society (IBS) in 2004 to recognize a lifetime of outstanding contributions by an eminent scholar in any subdiscipline of biogeography. Previous recipients

Re: information needed: fences and wildlife

John K. Tucker (Illinois Natural History Survey) published a paper = several years ago on turtles getting caught in fences. I do not have = the citation, however, you should be able to get it. I think it was in = Herpetological Review. =20 VISIT HERPETOLOGICAL CONSERVATION AND BIOLOGY