Navigation Links
Indigenous societies' 'first contact' typically brings collapse, but rebounds are possible
Date:4/3/2014

It was disastrous when Europeans first arrived in what would become Brazil -- 95 percent of its population, the majority of its tribes, and essentially all of its urban and agricultural infrastructure vanished. The experiences of Brazil's indigenous societies mirror those of other indigenous peoples following "first contact."

A new study of Brazil's indigenous societies led by Santa Fe Institute researcher Marcus Hamilton paints a grim picture of their experiences, but also offers a glimmer of hope to those seeking ways to preserve indigenous societies.

Even among the indigenous societies contacted in just the last 50 years, says Hamilton, "all of them went through a collapse, and for the majority of them it was disastrous," with disease and violence responsible in most cases, and with lasting detrimental effects. "That's going on today -- right now."

Brazil is "a tragic natural experiment," Hamilton says: several hundred native tribes contacted by outsiders remain, according to Instituto Socioambiental, a non-governmental organization that reports census data on 238 of those societies going back a half-century or more. That volume of data makes possible a detailed analysis of the health and prospects of the surviving contacted -- and uncontacted -- societies, an analysis that wouldn't be possible any where else in the world.

Using a method called population viability analysis, the researchers found that contact by outsiders is typically catastrophic, yet survivable. While first contacts in Brazil led to population declines of 43 percent on average, that decline bottomed out an average of eight or nine years after contact, following which population numbers grew as much as four percent a year -- about as much as possible. Projecting those results into the future suggests that contacted and as-yet uncontacted populations could recover from a low of just 100 individuals.

Hamilton and co-authors Robert Walker and Dylan
'/>"/>

Contact: Marcus Hamilton
marcusj@santafe.edu
Santa Fe Institute
Source:Eurekalert

Page: 1 2

Related biology news :

1. Plant breeding academy opens to boost Africas food supply with improved indigenous crops
2. Environment change threatens indigenous know-how
3. Mites form friendly societies
4. World Food Prize winner among speakers at agronomy, crop and soil science societies meetings
5. Physiological societies partner with Wiley on new open access journal
6. Medical societies unite on patient-centered measures for nonsurgical stroke interventions
7. Medical societies to launch large-scale study on vein filter use
8. IOF Worldwide Conference of Osteoporosis Patient Societies opens in Helsinki
9. AMP joins the Federation of American Societies for Experimental Biology
10. Scientific societies face modern challenges
11. Common bias known as the endowment effect not present in hunter-gatherer societies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/6/2015)... 2015 NXT-ID, Inc. (NASDAQ: NXTD ) ... focused on the growing mobile commerce market, announced ... for MINIATURE, MULTI-PURPOSE ANTENNA METHOD AND SYSTEM ... NXT-ID introduces a new revolutionary method and system ... use of miniature antenna modules for multiple purposes ...
(Date:4/2/2015)... Fingerprint Cards (FPC) has received ... the distributor World Peace Industrial Group (WPI), part of ... the major part of the shipments will take place ... smartphone manufacturers in China . The ... communicated revenue guidance of + 1 000 MSEK for 2015.  ...
(Date:3/31/2015)... March 31, 2015   Guidepoint , a leading ... the Post-Surgical Pain Management TRACKER, part of the ... trends in the medical device and therapeutics markets. The ... including treatment volumes, market share, and adoption rates across ... with joint surgery. The Post-Surgical Pain Management ...
Breaking Biology News(10 mins):NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 2NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 3NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 4Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 110 Million 2Guidepoint Launches Post-Surgical Pain Management TRACKER 2Guidepoint Launches Post-Surgical Pain Management TRACKER 3
... available in German . , International agreements such ... have one snag: it is almost impossible to independently verify ... of whether or not the countries have achieved their reduction ... that are signatories to the UNFCCC (,United Nations Framework Convention ...
... bone health in postmenopausal women and people of all ... a simple, proactive solution to help prevent fractures and osteoporosis: ... numerous fruits, including figs, dates, strawberries and raisins, and none ... bone density that dried plums, or prunes, have," said Bahram ...
... computing becomes the next big consumer techo trend, allowing ... store everything from playlists to photos, it,s also ... done. Using the cloud model as inspiration, biomedical informatics ... Translational Research Informatics and Data management grid (TRIAD), a ...
Cached Biology News:Fudging in greenhouse gas stats? 2Fudging in greenhouse gas stats? 3No bones about it: Eating dried plums helps prevent fractures and osteoporosis 2Biomedical research gets its head into cloud computing 2Biomedical research gets its head into cloud computing 3Biomedical research gets its head into cloud computing 4
(Date:5/6/2015)... TAMPA, Fla. , May 6, 2015  Oxis ... International, Inc. OTC: OXIS, OXI.PA, announced today that ... Oncology, Division of Cancer Medicine at the University of ... board.  Dr. Yee is also Professor, Department of Immunology, ... Therapy, Center for Cancer Immunology Research at the University ...
(Date:5/6/2015)... 2015 Dr Jaspreet Singh , Senior ... deliver a speech at the 2015 Asian Starch Conference, to ... Expo Center.  , ... the topic: ,Potato Starch: A Potential Source for the ... Co-editor of a 528 page text book entitled ...
(Date:5/5/2015)... AND TORONTO, May 5, 2015 /PRNewswire/ - Aptose Biosciences Inc. ... reported financial results for the three months ended March ... otherwise, all amounts are in Canadian dollars. ... fiscal year end from May 31 to December 31. ... period being reported is for the three months ended ...
(Date:5/5/2015)... Hayden-McNeil is pleased to announce ... materials for smaller courses. This program is specifically designed ... students. , “I’m very excited about offering our ... instructors,” said Jeff McCarthy, Hayden-McNeil president. “By working with ... part to make education both more effective and affordable.” ...
Breaking Biology Technology:Oxis Biotech Appoints Cassian Yee, M.D. To Its Scientific Advisory Board 2Oxis Biotech Appoints Cassian Yee, M.D. To Its Scientific Advisory Board 3Potato Starch: A Potential Source for the Creation of Next Generation Bulk-ingredients and Smart Foods 2Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 2Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 3Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 4Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 5Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 6Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 7Aptose Biosciences Reports Results for the First Quarter Ended March 31, 2015 8Hayden-McNeil Expands Publishing Program to Service Lower Enrollment Courses 2
... introduced the world to tiny robots demonstrating soccer ... competition designed to advance microroboticsthe field devoted to ... dimensions are measured in micrometers (millionths of a ... Technology (NIST), in collaboration with IEEE, is inviting ...
... While other states jockeyed for position on Business ... its ranking as best in the Midwest and No. ... bioscience industry . , (Logo: ... bioscience ranking is in part due to updated estimates ...
... A faster tool for cell programming and a new way ... prizes of the 2009 Collegiate Inventors Competition, a program of ... Fund, the non-profit foundation of the global health care company ... Harris Wang, who invented a new way of cell ...
Cached Biology Technology:Is your microrobot up for the (NIST) challenge? 2Ohio Bioscience Industry Leads Midwest, Among Best in Nation as Investment Destination 2Winners Announced in 2009 Collegiate Inventors Competition(R) 2Winners Announced in 2009 Collegiate Inventors Competition(R) 3Winners Announced in 2009 Collegiate Inventors Competition(R) 4Winners Announced in 2009 Collegiate Inventors Competition(R) 5Winners Announced in 2009 Collegiate Inventors Competition(R) 6Winners Announced in 2009 Collegiate Inventors Competition(R) 7
Mouse monoclonal [H4B4] to LAMP2 - Lysosome Marker (Phycoerythrin) ( Abpromise for all tested applications). entrezGeneID: 3920 SwissProtID: P13473...
... NIS-Elements revolutionizes imaging software for the ... to microscopes, cameras, components and peripherals ... achiving tools. Its intuitive interface simplifies ... times while providing powerful features such ...
AVOID FREEZE/THAW CYCLES. Recognizes the ~32 kDa DNase IIα chain and the ~40 kDa proenzyme. DNase II causes both DNA condensation and DNA fragmentation. ...
Vented Caps for 75 cm2 Flasks...
Biology Products: