Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1111/1365-2656.13225 |
| Camouflage accuracy in Sahara-Sahel desert rodents | |
| Nokelainen, Ossi1; Brito, Jose Carlos2,3; Scott-Samuel, Nicholas E.4; Valkonen, Janne K.1; Boratynski, Zbyszek2,3 | |
| 通讯作者 | Nokelainen, Ossi |
| 来源期刊 | JOURNAL OF ANIMAL ECOLOGY
 |
| ISSN | 0021-8790 |
| EISSN | 1365-2656 |
| 出版年 | 2020 |
| 卷号 | 89期号:7页码:1658-1669 |
| 英文摘要 | Camouflage helps animals to hide from predators and is therefore key to survival. Although widespread convergence of animal phenotypes to their natural environment is well-established, there is a lack of knowledge about how species compromise camouflage accuracy across different background types in their habitat. Here we tested how background matching has responded to top-down selection by avian and mammalian predators using Sahara-Sahel desert rodents in North Africa. We show that the fur colouration of several species has become an accurate match to different types of desert habitats. This is supported by a correlation analysis of colour and pattern metrics, investigation of animal-to-background similarities at different spatial scales and is confirmed by modelling of two predator vision systems. The background match was closest across large (or global) spatial scales, suggesting a generalist camouflage tactic for many background types. Some species, may have a better match to the background over small (or focal) spatial scales, which could be the result of habitat choices or differential predation. Nevertheless, predicted discrimination distances of fur colouration were virtually indistinguishable for mammalian and low for avian vision model, which implies effective camouflage. Our study provides one of the best documented cases of multilevel camouflage accuracy in geographically widespread taxa. We conclude that background matching has become an effective and common adaptation against predatory threat in Sahara-Sahelian desert rodents. |
| 英文关键词 | background matching desert Dipodinae Gerbillinae QCPA top-down selection vision model |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Finland ; Portugal ; England |
| 开放获取类型 | Green Accepted, Green Submitted |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000526019200001 |
| WOS关键词 | DISRUPTIVE COLORATION ; GEOGRAPHIC-VARIATION ; CRYPTIC COLORATION ; ANIMAL CAMOUFLAGE ; BACKGROUND CHOICE ; FORAGING BEHAVIOR ; SELECTION ; POLYMORPHISM ; COMPROMISE ; EVOLUTION |
| WOS类目 | Ecology ; Zoology |
| WOS研究方向 | Environmental Sciences & Ecology ; Zoology |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/314857 |
| 作者单位 | 1.Univ Jyvaskyla, Dept Biol & Environm Sci, Jyvaskyla, Finland; 2.Univ Porto, CIBIO InBIO Associate Lab, Porto, Portugal; 3.Univ Porto, Res Ctr Biodivers & Genet Resources, Porto, Portugal; 4.Univ Bristol, Sch Psychol Sci, Bristol, Avon, England |
| 推荐引用方式 GB/T 7714 | Nokelainen, Ossi,Brito, Jose Carlos,Scott-Samuel, Nicholas E.,et al. Camouflage accuracy in Sahara-Sahel desert rodents[J],2020,89(7):1658-1669. |
| APA | Nokelainen, Ossi,Brito, Jose Carlos,Scott-Samuel, Nicholas E.,Valkonen, Janne K.,&Boratynski, Zbyszek.(2020).Camouflage accuracy in Sahara-Sahel desert rodents.JOURNAL OF ANIMAL ECOLOGY,89(7),1658-1669. |
| MLA | Nokelainen, Ossi,et al."Camouflage accuracy in Sahara-Sahel desert rodents".JOURNAL OF ANIMAL ECOLOGY 89.7(2020):1658-1669. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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