Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1080/11956860.2020.1793561 |
| Zooplankters in an oligotrophic ocean: contrasts in the niches ofGlobigerinoides ruberandTrilobatus sacculifer(Foraminifera: Globigerinida) in the South Pacific | |
| Scott, George H. | |
| 通讯作者 | Scott, GH |
| 来源期刊 | ECOSCIENCE
 |
| ISSN | 1195-6860 |
| EISSN | 2376-7626 |
| 出版年 | 2020 |
| 卷号 | 27期号:4页码:269-278 |
| 英文摘要 | Distributions of the planktonic foraminifersGlobigerinoides ruber(d'Orbigny) andTrilobus sacculifer(Brady) from the tropical-subtropical South Pacific Ocean are related to sea surface temperature (SST), chlorophyll-a, nitrate, phosphate, salinity and oxygen to determine whether their niches overlap. Their distributions in the ForCenS database of species in seafloor sediment are studied as proxies for upper ocean data. In the occurrence analysis (MaxEnt) SST is the strongest predictor of niche suitability followed by chlorophyll-a; environments between 0-20 degrees S are the most suitable for both species: niches are undifferentiated. Contrarily, abundance analysis (Random Forests) identifies nitrate and chlorophyll-a as primary variables forGlobigerinoides ruber, and SST and chlorophyll-a forTrilobatus sacculifer. Maximum abundances of the former are predicted in the subtropical hyper-oligotrophic zone while maxima of the latter are predicted at its margins and near the West Pacific Warm Pool. The high relative abundance ofGlobigerinoides ruberin the hyper-oligotrophic zone is attributed to its photosymbiotic relation with on-board dinoflagellates; this compensates for the low primary productivity in the zone. It is the best-adapted planktonic foraminifer in this huge marine 'desert' and is a proxy for hyper-oligotrophic environments. The photosymbiotic relation is weaker inTrilobatus sacculiferwhich primarily depends on particulate nutrition. |
| 英文关键词 | Planktonic foraminifera ecology trophic resources species abundance models dinoflagellates photosymbiosis |
| 类型 | Article |
| 语种 | 英语 |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000549041700001 |
| WOS关键词 | PLANKTONIC-FORAMINIFERA ; PHOTOSYMBIOSIS ; PRODUCTIVITY ; VARIABILITY ; PREDICTION ; SACCULIFER ; ABUNDANCE ; RUBER ; LIFE |
| WOS类目 | Ecology |
| WOS研究方向 | Environmental Sciences & Ecology |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/325062 |
| 作者单位 | [Scott, George H.] GNS Sci, Dept Paleontol, Lower Hutt, New Zealand |
| 推荐引用方式 GB/T 7714 | Scott, George H.. Zooplankters in an oligotrophic ocean: contrasts in the niches ofGlobigerinoides ruberandTrilobatus sacculifer(Foraminifera: Globigerinida) in the South Pacific[J],2020,27(4):269-278. |
| APA | Scott, George H..(2020).Zooplankters in an oligotrophic ocean: contrasts in the niches ofGlobigerinoides ruberandTrilobatus sacculifer(Foraminifera: Globigerinida) in the South Pacific.ECOSCIENCE,27(4),269-278. |
| MLA | Scott, George H.."Zooplankters in an oligotrophic ocean: contrasts in the niches ofGlobigerinoides ruberandTrilobatus sacculifer(Foraminifera: Globigerinida) in the South Pacific".ECOSCIENCE 27.4(2020):269-278. |
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