據(jù)4月11日的《科學(xué)》（Science）雜志報(bào)道說(shuō),，馬達(dá)加斯加是全球公認(rèn)的生物多樣性的熱區(qū),，該國(guó)政府打算將被保護(hù)的土地面積擴(kuò)大3倍,，而研究人員現(xiàn)在已經(jīng)有了應(yīng)該將哪些地區(qū)納入這一擴(kuò)充保護(hù)地之內(nèi)的計(jì)劃。Claire Kremen及其共同作者說(shuō),，他們的決策方法應(yīng)該也適用于其它的生物多樣性熱區(qū),。
根據(jù)文章的作者披露，大約有50%的植物及超過(guò)70%的脊椎動(dòng)物種系集中在占地球陸地面積僅2.3%的生物多樣性熱區(qū)中。Kremen及其同事對(duì)許多物種進(jìn)行了分析,，并將地理區(qū)域分成較小的區(qū)塊,。他們收集了有關(guān)螞蟻、蝴蝶,、蛙類(lèi),、壁虎、狐猴及各種植物等地方特有物種的資料,，并據(jù)此繪制了一幅被認(rèn)為是擴(kuò)大目前保護(hù)地網(wǎng)絡(luò)最為重要的區(qū)域地圖,。這些地區(qū)包括位于中部高原群山及海岸林內(nèi)的數(shù)個(gè)地區(qū)，而這些地區(qū)的森林覆蓋面積相對(duì)較小但卻有相當(dāng)大的生物多樣性,。這些地區(qū)在歷史上被忽視,，因?yàn)槿藗兏鼰嶂杂诒Ｗo(hù)大塊的森林區(qū)域。（來(lái)源：EurekAlert!中文版）
生物谷推薦原始出處：
（Science）,，Vol. 320. no. 5873, pp. 222 - 226,，C. Kremen，M. L. Zjhra
Aligning Conservation Priorities Across Taxa in Madagascar with High-Resolution Planning Tools
C. Kremen,1,2* A. Cameron,1,2 A. Moilanen,3 S. J. Phillips,4 C. D. Thomas,5 H. Beentje,6 J. Dransfield,6 B. L. Fisher,7 F. Glaw,8 T. C. Good,9 G. J. Harper,10 R. J. Hijmans,11 D. C. Lees,12 E. Louis, Jr.,13 R. A. Nussbaum,14 C. J. Raxworthy,15 A. Razafimpahanana,2 G. E. Schatz,16 M. Vences,17 D. R. Vieites,18 P. C. Wright,19 M. L. Zjhra9
Globally, priority areas for biodiversity are relatively well known, yet few detailed plans exist to direct conservation action within them, despite urgent need. Madagascar, like other globally recognized biodiversity hot spots, has complex spatial patterns of endemism that differ among taxonomic groups, creating challenges for the selection of within-country priorities. We show, in an analysis of wide taxonomic and geographic breadth and high spatial resolution, that multitaxonomic rather than single-taxon approaches are critical for identifying areas likely to promote the persistence of most species. Our conservation prioritization, facilitated by newly available techniques, identifies optimal expansion sites for the Madagascar government's current goal of tripling the land area under protection. Our findings further suggest that high-resolution multitaxonomic approaches to prioritization may be necessary to ensure protection for biodiversity in other global hot spots.
