Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1071/BT16104 |
Rainfall and grazing: not the only barriers to arid-zone conifer recruitment | |
Zimmer, Heidi C.1,2; Florentine, Singarayer K.1; Enke, Rita3; Westbrooke, Martin1 | |
通讯作者 | Zimmer, Heidi C. |
来源期刊 | AUSTRALIAN JOURNAL OF BOTANY
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ISSN | 0067-1924 |
EISSN | 1444-9862 |
出版年 | 2017 |
卷号 | 65期号:2页码:109-119 |
英文摘要 | An understanding of the drivers of infrequent recruitment is fundamental in managing for species persistence. Callitris glaucophylla Joy Thomps. & L.A.S. Johnson (white cypress-pine) is a slow-growing, long-lived conifer, with a distribution that extends across arid Australia. Arid populations of C. glaucophylla are endangered in New South Wales, and are characterised by infrequent recruitment. We examined recruitment patterns of C. glaucophylla in differential grazing exclosures (excluding rabbits, excluding large herbivores or excluding both) and in unfenced areas. More recruitment occurred in rabbit-proof exclosures, compared with nearby large herbivore and control exclosures, although some rabbit-proof exclosures recorded no recruitment. Increases in recruitment at several long-term exclosures were associated with wet periods, as was recruitment at some unfenced sites. Apart from grazing and rainfall, recruitment was related to mature tree size and stand density (probably because of their influence on seed availability). These endangered arid C. glaucophylla woodlands are all that remains of a once extensive distribution, and are habitat for a suite of threatened species. Reduction in grazing pressure, particularly from rabbits, is clearly critical to maintain recruitment in these remnant populations. Chances of recruitment appear to be enhanced in low-density stands, around large trees, and in dune blow outs-fencing should focus on these areas. |
英文关键词 | Callitris glaucophylla cypress pine desert rabbits regeneration seedlings |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000398537900003 |
WOS关键词 | PINE CALLITRIS-GLAUCOPHYLLA ; MIXED-EFFECTS MODELS ; NEW-SOUTH-WALES ; DEMOGRAPHIC PATTERNS ; AUSTRALIAN CONIFER ; EASTERN AUSTRALIA ; SEED PRODUCTION ; TREE ; GROWTH ; POPULATION |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
来源机构 | Arizona State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/197736 |
作者单位 | 1.Federat Univ Australia, Fac Sci & Technol, Ctr Environm Management, POB 663, Mt Helen, Vic 3350, Australia; 2.NSW Off Environm & Heritage, POB 1967, Hurstville, NSW 1481, Australia; 3.NSW Natl Pk & Wildlife Serv, Off Environm & Heritage, POB 318, Buronga, NSW 2739, Australia |
推荐引用方式 GB/T 7714 | Zimmer, Heidi C.,Florentine, Singarayer K.,Enke, Rita,et al. Rainfall and grazing: not the only barriers to arid-zone conifer recruitment[J]. Arizona State University,2017,65(2):109-119. |
APA | Zimmer, Heidi C.,Florentine, Singarayer K.,Enke, Rita,&Westbrooke, Martin.(2017).Rainfall and grazing: not the only barriers to arid-zone conifer recruitment.AUSTRALIAN JOURNAL OF BOTANY,65(2),109-119. |
MLA | Zimmer, Heidi C.,et al."Rainfall and grazing: not the only barriers to arid-zone conifer recruitment".AUSTRALIAN JOURNAL OF BOTANY 65.2(2017):109-119. |
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