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카테고리 없음

주말

맥주 마시고 진격의 거인이랑 도로헤로도 보고, 편하고 좋다. 강력한 만화를 두 개나 보니 대략 정신이 멍해진다만. 주말 동안 회의 준비 해야지. 월요일 부터 까다로운 회의가 잡혔네. 다음 주말엔 베이커 스트리트 방문할 듯 흐흐. 며칠은 멍 때려도 되겠지.. 


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http://www.werc.usgs.gov/ProductDetails.aspx?ID=4846
이런 식으로 cost space 만들어서 동물 행동을 연구하는 경우가 많다. 간단히 말하면, 동물을 움직이게 만드는 요인들을 거리에 가중하는 방법을 써서, 그렇게 재구성된 공간에서 동물이 어떻게 움직이는지 보는 것. 제대로 읽진 못했고, 새로 나온 연구라 링크 


Mapping behavioral landscapes for animal movement: A finite mixture modeling approach

Released: 2013
Citation: 
Tracey, JA, J Zhu, E Boydston, L Lyren, RN Fisher, KR Crooks. 2013. Mapping behavioral landscapes for animal movement: A finite mixture modeling approach. Ecological Applications 23(3): 654-669. doi: 10.1890/12-0687.1 
 





Enhancing conservation of large-river biodiversity by accounting for tributaries
Brenda M Pracheil 1*, Peter B McIntyre 1, and John D Lyons 2

Alteration of rivers for human use has resulted in substantial biodiversity declines, particularly for species restricted to the largest rivers. Conservation and restoration efforts on large rivers often focus on the mainstem, but societal reliance on benefits derived from these alterations generally prevents complete restoration of the river. We propose that certain tributaries, by virtue of their lower degree of alteration, offer underappreciated opportunities for conserving large-river biota. Using the distribution patterns of large-river specialist fishes from the Mississippi River Basin, we identify a threshold discharge (166 cubic meters per second) beyond which tributaries support all or most of these species. We merge our macroecological analysis of assemblage structure with data on dam locations to identify tributaries where restoration efforts offer the highest potential conservation gains for 60 of the 68 large-river specialist fish species that are of state, federal, or international conservation concern. Given the highly altered state of many mainstem rivers, this analytical approach could be used to select tributaries that will aid in the conservation of large-river species worldwide.

소개글 1
http://www.esa.org/esablog/research/looking-to-large-tributaries-for-conservation-gains/
소개글2 (이게 인터뷰도 있고 맥락이 잘 잡힘) 
http://limnology.wisc.edu/blog/thinking-big-may-not-be-best-approach-to-saving-large-river-fish/
소개 

엄청 큰 강에만 사는 물고기도 많은데 그런 고기 보전 대책에 대한 연굽니다. 지류를 잘 보전하면 넓은 서식지에 특화된 중 보전 도울 수 있다 (여기선 문턱 유량 발견 166 m3/s) 는 결론. 보나 구조물 설치에 관련해서 우리나라에 시사점 있을 듯 해서 소개합니다. 


Figure 3 -- Pracheil, B., McIntyre, P., & Lyons, J. (2013). Enhancing conservation of large-river biodiversity by accounting for tributaries Frontiers in Ecology and the Environment, 11 (3), 124-128 DOI: 10.1890/120179

Mississippi River Basin. Green tributaries have sufficient flow for large-river specialist fishes, and long stretches unobstructed by obstacles of civilization. Blue tributaries fall below a critical flow threshold. Yellow tributaries discharge enough water, but are blocked by dams.
source: http://www.esa.org/esablog/research/looking-to-large-tributaries-for-conservation-gains/

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http://www.washingtonpost.com/blogs/wonkblog/wp/2013/04/12/bitcoin-is-ludicrous-but-it-tells-us-something-important-about-the-nature-of-money/
비트코인에 대해 폴 님이 추천한 글. 상당히 교육적이고 잘 쓰였다.  


먼 북소리가 뜬금없이 용이 책꽂이에 있어서 들고 나왔다.