Now on ScienceBlogs: Surveying the "integrative medicine" landscape (2012 edition)

ScienceBlogs Book Club: Inside the Outbreaks

Shifting Baselines

The Cure for Planetary Amnesia

The Shifting Baselines Blog

JacquetSEED.jpgJennifer Jacquet is a Ph.D. candidate with the Sea Around Us Project at the UBC Fisheries Centre. She works closely with Dr. Daniel Pauly, who coined the term Shifting Baselines, the syndrome on which this blog focuses. <img alt=
Josh Donlan
is a conservation scientist and a Visting Fellow at Cornell University. He often hides out in the backcountry of the Teton Mountains, pondering bygone giant beavers and ground sloths. He also is also the founder and Director of Advanced Conservation Strategies and has a habit of restoring remote islands.

RODodos.jpgScientist turned filmmaker Randy Olson, founder of the Shifting Baselines Ocean Media Project is also a blog contributor.

Search

Recent Posts

Recent Comments

Archives

Online Resources and Blogs

New Projects & Publications

November 2008 Jennifer Jacquet is lead author of the study In hot soup: sharks captured in Ecuador's waters published in Environmental Sciences.

November 27, 2008: Jennifer Jacquet gives the talk "Why Consumers Alone Can't Save Our Fish" at 1pm at Simon Fraser University in Vancouver, B.C.

August 2008: Josh Donlan is co-author on a new paper titled Integrating invasive mammal eradications and biodiversity offsets for fisheries bycatch: conservation opportunities and challenges for seabirds and sea turtles published in Biological Invasions.

August 2008: Jennifer Jacquet is co-author on a new paper titled Funding Priorities: Big Barriers to Small-Scale Fisheries published in Conservation Biology.

August 2008: Josh Donlan is an author on a new paper in Journal of Applied Ecology titled Diversity, invasive species, and extinctions in insular ecosystems.

July 26, 2008: Randy Olson's film Sizzle premieres on the East Coast at the Woods Hole Film Festival in MA.

July 24, 2008: Josh Donlan gives a talk on biodiversity offsets to The Alcoa Foundation and the Alcao Intalco Aluminum Plant in Bellingham, Washington.

July 22, 2008: Jennifer Jacquet gives the talk "A Way Forward in a Sea of Market Based Initiatives to Save Wild Fish" at the Scripps Institution of Oceanography in La Jolla, CA.

July 19, 2008: Randy Olson's film Sizzle premieres on the West Coast at Outfest in Hollywood, CA.

July 17, 2008: Jennifer Jacquet gives the talk "In Hot Soup: Shark's Captured in Ecuador's Waters" at the Society for Conservation Biology Annual Meeting in Chattanooga, TN.

July 9, 2008: Jennifer Jacquet gives the talk "Flawed Data, Reef Fisheries, And Food Security: A Close Inspection Of Marine Fisheries Catches in Mozambique, Tanzania, Fiji, And The Solomon Islands" at the 11th International Coral Reef Symposium in Ft. Lauderdale, FL.

June/July 2008: Josh Donlan attends training for his Kinship Conservation Fellowship in Bellingham, WA.

May 2008: Josh Donlan is an author on a new paper in Ambio titled High impact Conservation: Invasive Mammal Eradications from the Islands of Western Mexico.

May 15, 2008: Jennifer Jacquet reviews Bottomfeeder: How to Eat Ethically in a World of Vanishing Seafood at the Tyee.

April 2008: Trade Secrets: Renaming and Mislabeling of Seafood by Jennifer Jacquet and Daniel Pauly is published in Marine Policy.

April 2008: Randy Olson and the Puget Sound Partnership release the flash video Shifting Baselines in the Sound:.

Mar. 2008: Dr. Josh Donlan joins the Shifting Baselines blog.

Jan. 2008 Jennifer Jacquet launches the Eat Like a Pig Seafood Wallet Card EatLikeaPigHalf.jpg

« Galapagos Drama | Main | Subtle Shifts And Sex »

To Tortoise Or Not To Tortoise?

Category: Rewilding
Posted on: March 19, 2008 2:00 PM, by Josh Donlan

Ok, I would really like people to weigh in on this one. Jennifer is in the Galapagos, so I figured I might as well write about them. And what better topic to write about than rewilding the Galapagos. Here's the scenario: the Galapagos National Park and the Charles Darwin Foundation has spent the last 8 years or so removing feral goat and pig populations from a suite of the islands. I was the Science and Conservation Advisor for this massive project which was a huge success. One of the islands we restored was Pinta Island, where we removed a couple thousand goats. The island is now free of non-native mammals and the native vegetation has recovered. There is only one problem: no tortoises.

tortoise.png

Once abundant on Pinta Island, tortoises - the megafauna of the Galapagos - were first wiped out by whalers for food and then heavily impacted by habitat degradation by goats. The sole survivor from Pinta Island - Lonesome George - lives in captivity. No one can seem to talk Lonesome George into breeding with any tortoises from other islands. No libido apparently (they have been trying for over a decade). Many of the islands in the Galapagos, including Pinta, have genetically distinct giant tortoises populations. Closely related and the same species, but distinct.

So here is the question: should we reintroduce a closely related tortoise population to Pinta island to replace the tortoise population that was there historically? Should we try and restore the ecological role of tortoises back to the island (which we know was very important) and re-start evolution on the island? Or should we resist "playing god" and leave the island alone? (but are we already playing God?)

See a recent article in The Independent for my view and the Galapagos National Park's new restoration plan for Pinta Island.

Share on Facebook
Share on StumbleUpon
Share on Facebook
Find more posts in: EnvironmentLife Science

TrackBacks

TrackBack URL for this entry: http://scienceblogs.com/mt/pings/66854

Comments

1

I say bring the tortoises back. And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again.

Posted by: Micah | March 19, 2008 6:10 PM

2

Is there reproductive isolation between Pinta turtles and the other islands? If so, it's worth a serious re-assessment of how different an ecological role George and his ilk would play as opposed to other tortises. If they aren't even isolated (e.g. not enough time has passed for evolution to change that most fundamental of machinery), and it is plausible that a tortise could be transported, than it is not beyond the bounds of possibility that such an event could happen anyway. Why not!

Posted by: jebyrnes | March 19, 2008 8:47 PM

3

A choice to not act is still a choice.

If the tortoises from all of the islands are inter-fertile I would suggest seeding Pinta Island with a tortoise or two from each island (including Lonesome George). That way that 'neo-pintan' tortoises will be descended from as wide a genetic diversity as possible. (If the Pintan ecology is very well-restored it would be possible to harvest an occasional tortoise.)

Posted by: Christopher Gwyn | March 19, 2008 10:52 PM

4

Bring them back. I like Christopher's suggestion to use Lonesome George and tortoises from other islands. This would be the best way to avoid reseeding the island and minimize the founders effect.

Posted by: KevinC | March 20, 2008 8:01 AM

5

Transplant the tortoises! If there is an ecological niche for them and they will help the island trend back towards how it was pre-whalers, it seems like the best option.

Posted by: Milan | March 20, 2008 8:03 AM

6

I seem to recall a suggestion that (an)other Pinta tortoise(s) had been found (either misidentified in the captive populace or somewhere on island during the goat cull? Assuming that was inaccurate then go for it I say.

Posted by: tai haku | March 20, 2008 9:03 AM

7

Yes...and hell yes. Oh, and why not attempt to establish colonies on other islands or seperate locations so that in the event of a cataclysmic appearance of a pandemic disease of some other impact, natural or man-made, the legacy can be protected until it can be re-established. Humans never seem to hesitate to use our ability in disregard for the species that not just fascinate us but make the living system so productive that it can actually support us in our profligacy. It makes great sense to use it intelligently and carefully, but use it to keep the complexity that is so closely correlated to any system's productivity as complete as possible. Thanks for what you're doin'.

Posted by: doug l | March 20, 2008 12:44 PM

9

Yes!

Posted by: ~summer~ | March 21, 2008 8:24 PM

10

Lonesome George generates a lot of tourism. From an economic standpoint, does it make good sense (cents) to have more than one?

Posted by: Jennifer L. Jacquet | March 24, 2008 12:14 PM

11

Humans never seem to hesitate to use our ability in disregard for the species that not just fascinate us but make the living system so productive that it can actually support us in our profligacy.

Posted by: grow taller 4 idiots | August 29, 2009 2:50 AM

12

Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again.

Posted by: sex hikayeleri | August 10, 2010 4:57 AM

13

the species that not just fascinate us but make the living system so productive that it can actually support us in our profligacy. It makes great sense to use it intelligently and carefully, but use it to keep the complexity that is so closely correlated to any system's productivity as complete as possible.

Posted by: film izle | August 10, 2010 5:01 AM

14

It makes great sense to use it intelligently and carefully, but use it to keep the complexity that is so closely correlated to any system's productivity as complete as possible. Thanks for.

Posted by: orjin krem | August 19, 2010 2:50 AM

15

It makes great sense to use it intelligently and carefully, but use it to keep the complexity that is so closely correlated to any system's productivity as complete as possible. Thanks for.

Posted by: for men | August 26, 2010 12:43 AM

16

Humans never seem to hesitate to use our ability in disregard for the species that not just fascinate us but make the living system so productive that it can actually support us in our profligacy.Thanks a lot

Posted by: güzel sözler | August 31, 2010 8:04 AM

17

Lonesome George generates a lot of tourism. From an economic standpoint, does it make good sense (cents) to have more than one?

Posted by: kasko | September 3, 2010 11:59 PM

18

It makes great sense to use it intelligently and carefully, but use it to keep the complexity that is so closely correlated to any system's productivity as complete as possible. Thanks for.

Posted by: islam | November 30, 2010 6:02 AM

19

And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again.

Posted by: seo uzmanı | November 30, 2010 6:07 AM

20

And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again.

Posted by: seo uzmanı | November 30, 2010 6:07 AM

21

It makes great sense to use it intelligently and carefully, but use it to keep the complexity that is so closely correlated to any system's productivity as complete as possible. Thanks for.

Posted by: trafik sigortası | December 18, 2010 12:30 PM

22

And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again.

Posted by: ilhami doruk | December 23, 2010 5:34 AM

23

If the tortoises from all of the islands are inter-fertile I would suggest seeding Pinta Island with a tortoise or two from each island (including Lonesome George). That way that 'neo-pintan' tortoises will be descended from as wide a genetic diversity as possible. (If the Pintan ecology is very well-restored it would be possible to harvest an occasional tortoise.)

Posted by: güzel sözler | January 4, 2011 11:01 AM

24

And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again.

Posted by: panax | January 8, 2011 1:41 AM

25

Bu, akıllıca ve dikkatli kullanmak ama mümkün olduğunca eksiksiz olarak çok yakından herhangi bir sistemin verimliliği için ilişkilidir karmaşıklığı tutmak için kullanabilirsiniz büyük anlam ifade eder.

Posted by: panax | March 5, 2011 7:55 AM

26

And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again

Posted by: müzik dinle | March 31, 2011 2:37 AM

27

Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again.

Posted by: oyun download | April 10, 2011 4:59 AM

28

And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!)

Posted by: estetik cerrahi | April 19, 2011 12:30 PM

29

And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!)

Posted by: estetik cerrahi | April 19, 2011 12:31 PM

30

And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!)

Posted by: saç ekimi | April 19, 2011 12:34 PM

31

Is there reproductive isolation between Pinta turtles and the other islands? If so, it's worth a serious re-assessment of how different an ecological role George and his ilk would play as opposed to other tortises. If they aren't even isolated (e.g. not enough time has passed for evolution to change that most fundamental of machinery), and it is plausible that a tortise could be transported, than it is not beyond the bounds of possibility that such an event could happen anyway. Why not!

Posted by: porno | May 3, 2011 5:24 PM

32

If the tortoises from all of the islands are inter-fertile I would suggest seeding Pinta Island with a tortoise or two from each island (including Lonesome George). That way that 'neo-pintan' tortoises will be descended from as wide a genetic diversity as possible. (If the Pintan ecology is very well-restored it would be possible to harvest an occasional tortoise.) And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again.

Posted by: chat yap | May 11, 2011 7:56 AM

33

If the tortoises from all of the islands are inter-fertile I would suggest seeding Pinta Island with a tortoise or two from each island (including Lonesome George). That way that 'neo-pintan' tortoises will be descended from as wide a genetic diversity as possible. (If the Pintan ecology is very well-restored it would be possible to harvest an occasional tortoise.) And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again.

Posted by: panax | July 7, 2011 1:50 AM

34

If the tortoises from all of the islands are inter-fertile I would suggest seeding Pinta Island with a tortoise or two from each island (including Lonesome George). That way that 'neo-pintan' tortoises will be descended from as wide a genetic diversity as possible. (If the Pintan ecology is very well-restored it would be possible to harvest an occasional tortoise.) And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he ..

Posted by: panax | July 7, 2011 2:42 AM

35

Of course, we should try to restore old fauna of these islands. We need to fix those to applicable, which have made the whalers. I think you need to pay attention to these issues.

Posted by: Обслуживание ПК | July 15, 2011 2:26 AM

36

If the tortoises from all of the islands are inter-fertile I would suggest seeding Pinta Island with a tortoise or two from each island (including Lonesome George). That way that 'neo-pintan' tortoises will be descended from as wide a genetic diversity as possible. (If the Pintan ecology is very well-restored it would be possible to harvest an occasional tortoise.) And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again

Posted by: panax | July 29, 2011 12:05 PM

37

That way that 'neo-pintan' tortoises will be descended from as wide a genetic diversity as possible.

Posted by: panax | July 31, 2011 6:30 PM

38

the species that not just fascinate us but make the living system so productive that it can actually support us in our profligacy. It makes great sense to use it intelligently and carefully, but use it to keep the complexity that is so closely correlated to any system's productivity as complete as possible

Posted by: panax | August 12, 2011 6:27 AM

39

the species that not just fascinate us but make the living system so productive that it can actually support us in our profligacy. It makes great sense to use it intelligently and carefully, but use it to keep the complexity that is so closely correlated to any system's productivity as complete as possible

Posted by: takı | August 12, 2011 4:21 PM

40

If they aren't even isolated (e.g. not enough time has passed for evolution to change that most fundamental of machinery), and it is plausible that a tortise could be transported, than it is not beyond the bounds of possibility that such an event could happen anyway

Posted by: panax | September 24, 2011 8:40 AM

41

If the tortoises from all of the islands are inter-fertile I would suggest seeding Pinta Island with a tortoise or two from each island (including Lonesome George). That way that 'neo-pintan' tortoises will be descended from as wide a genetic diversity as possible. (If the Pintan ecology is very well-restored it would be possible to harvest an occasional tortoise.) And free Lonesome George! Who knows, maybe if George was free to roam as king of Pinta Island, and had a harem of female tortoises, he would come out of his shell (!) and start mating again.

Posted by: şarkı dinle | October 24, 2011 3:39 AM

42

Tortoises are one of my favorite animals. Even thou I don't know the reason for that I still love them, maybe the reason that they are so slow and can't to mush harm to the people

Posted by: Army bases | November 21, 2011 11:33 AM

Post a Comment

(Email is required for authentication purposes only. On some blogs, comments are moderated for spam, so your comment may not appear immediately.)





ScienceBlogs

Search ScienceBlogs:

Go to:

Advertisement
Follow ScienceBlogs on Twitter

© 2006-2011 ScienceBlogs LLC. ScienceBlogs is a registered trademark of ScienceBlogs LLC. All rights reserved.