干旱区生态环境知识资源中心(Arid): Pollination ecology of Tetratheca species from isolated, arid habitats (Banded Iron Formations) in Western Australia

Arid

DOI	10.1071/BT18249
	Pollination ecology of Tetratheca species from isolated, arid habitats (Banded Iron Formations) in Western Australia
	Ladd, P. G.1; Yates, C. J.2; Dillon, R.2; Palmer, R.2
通讯作者	Ladd, P. G.
来源期刊	AUSTRALIAN JOURNAL OF BOTANY
ISSN	0067-1924
EISSN	1444-9862
出版年	2019
卷号	67 期号:3 页码:248-255
英文摘要	Pollination and reproductive ecology of arid zone species in Australia are neglected topics. This is particularly true of rare species, some of which are threatened by mining operations. The bee community at Windarling Range in southern Western Australia and the pollination ecology of four rare Tetratheca taxa with distributions restricted to Banded Iron Formation inselbergs in the arid south-west were examined in winter and spring to understand if pollination rate was affecting the reproductive ecology of the plants. The bee fauna on the Windarling Range was sampled using coloured pan traps at three landscape positions of ridge (where Tetratheca paynterae subsp. paynterae occurs), slope and flats and the insect visitors to T. paynterae subsp. paynterae were quantified by direct observation. The bee fauna varied over the two years with average richness higher in 2010 than 2011 and was higher on the ridge compared with the slope and flats below the inselberg. The Tetratheca species are buzz pollinated and T. paynterae subsp. paynterae is only visited by a subsection of the bee fauna, mainly Lasioglossum species, which were shown to be relatively faithful to the species in terms of the pollen they carried. Flowering mainly occurs after the winter wet season, but may occur at other times when there has been substantial rain. This may not coincide with bee activity. In the winter flowers may be poorly serviced if maximum daytime temperatures are below 20 degrees C. However, in spring when temperatures are higher the majority of flowers were pollinated and there was no significant difference in proportion of pollinated flowers between the four taxa examined. As T. paynterae is outcrossing the propensity for bees to attend few flowers on a visit to each plant, often on the outer part of the plant canopy, will likely ensure a high success rate for seed formation. High seed set in such an arid environment with few suitable sites for seedling establishment is essential so some propagules can find safe sites for establishment to maintain population numbers.
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000468055600008
WOS关键词	POLLEN ; HYMENOPTERA ; LANDSCAPE ; APIFORMES ; FLOWERS ; SHRUB ; FIRE
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214564
作者单位	1.Murdoch Univ, Environm & Conservat Sci, Murdoch, WA 6150, Australia; 2.Dept Biodivers Conservat & Attract, Biodivers & Conservat Sci, Locked Bag 104,Bentley Delivery Ctr, Bentley, WA 6983, Australia
推荐引用方式 GB/T 7714	Ladd, P. G.,Yates, C. J.,Dillon, R.,et al. Pollination ecology of Tetratheca species from isolated, arid habitats (Banded Iron Formations) in Western Australia[J],2019,67(3):248-255.
APA	Ladd, P. G.,Yates, C. J.,Dillon, R.,&Palmer, R..(2019).Pollination ecology of Tetratheca species from isolated, arid habitats (Banded Iron Formations) in Western Australia.AUSTRALIAN JOURNAL OF BOTANY,67(3),248-255.
MLA	Ladd, P. G.,et al."Pollination ecology of Tetratheca species from isolated, arid habitats (Banded Iron Formations) in Western Australia".AUSTRALIAN JOURNAL OF BOTANY 67.3(2019):248-255.