Habitat segregation of 'Banksia marginata' and 'B. spinulosa' at Gibraltar Range, NSW

S Virgona; Glenda Vera Vaughton; Michael William Ramsey

Abstract

Post-fire regeneration studies have shown that plant species may segregate into different habitats early in the lifecycle. At Gibraltar Range in northern NSW, 'B. marginata' is largely confined to swamp margins, whereas 'B. spinulosa' occurs in surrounding woodland. Both species are highly serotinous, although 'B. marginata' is an obligate seeder and 'B. spinulosa' is a resprouter. This project takes advantage of the recent fires of 2002 to examine factors operating during juvenile lifecycle stages to explain the observed habitat segregation. In the glasshouse under optimal moisture conditions, a reciprocal germination and seedling establishment experiment demonstrated that soil type was not a key factor contributing to habitat segregation. However, in the field both species had similar germination in the swamp, but 'B. marginata' had reduced germination in the drier woodland. The reduced 'B. marginata' germination may be caused by low soil moisture, and may determine habitat segregation. Additional glasshouse experiments will examine the effects of different soil moisture conditions on seedling growth and survival. Also, a reciprocal seedling transplant experiment will be conducted in the field to examine habitat effects on growth and survival. These results will be used to examine further the pronounced habitat segregation of these Banksia species.

Original language	English
Pages	208-208
Publication status	Published - 2003
Event	ESA 2003: 28th Annual Conference of the Ecological Society of Australia - University of New England, Armidale, Australia Duration: 8 Dec 2003 → 10 Dec 2003

Conference

Conference	ESA 2003: 28th Annual Conference of the Ecological Society of Australia
City	Armidale, Australia
Period	8/12/03 → 10/12/03

Keywords

Community Ecology (excl Invasive Species Ecology)

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https://hdl.handle.net/1959.11/4590

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Cite this

@conference{4e2f4084aa994667a0dbfdc78567a870,

title = "Habitat segregation of 'Banksia marginata' and 'B. spinulosa' at Gibraltar Range, NSW",

abstract = "Post-fire regeneration studies have shown that plant species may segregate into different habitats early in the lifecycle. At Gibraltar Range in northern NSW, 'B. marginata' is largely confined to swamp margins, whereas 'B. spinulosa' occurs in surrounding woodland. Both species are highly serotinous, although 'B. marginata' is an obligate seeder and 'B. spinulosa' is a resprouter. This project takes advantage of the recent fires of 2002 to examine factors operating during juvenile lifecycle stages to explain the observed habitat segregation. In the glasshouse under optimal moisture conditions, a reciprocal germination and seedling establishment experiment demonstrated that soil type was not a key factor contributing to habitat segregation. However, in the field both species had similar germination in the swamp, but 'B. marginata' had reduced germination in the drier woodland. The reduced 'B. marginata' germination may be caused by low soil moisture, and may determine habitat segregation. Additional glasshouse experiments will examine the effects of different soil moisture conditions on seedling growth and survival. Also, a reciprocal seedling transplant experiment will be conducted in the field to examine habitat effects on growth and survival. These results will be used to examine further the pronounced habitat segregation of these Banksia species.",

keywords = "Community Ecology (excl Invasive Species Ecology)",

author = "S Virgona and Vaughton, \{Glenda Vera\} and Ramsey, \{Michael William\}",

year = "2003",

language = "English",

pages = "208--208",

note = "ESA 2003: 28th Annual Conference of the Ecological Society of Australia ; Conference date: 08-12-2003 Through 10-12-2003",

}

TY - CONF

T1 - Habitat segregation of 'Banksia marginata' and 'B. spinulosa' at Gibraltar Range, NSW

AU - Virgona, S

AU - Vaughton, Glenda Vera

AU - Ramsey, Michael William

PY - 2003

Y1 - 2003

N2 - Post-fire regeneration studies have shown that plant species may segregate into different habitats early in the lifecycle. At Gibraltar Range in northern NSW, 'B. marginata' is largely confined to swamp margins, whereas 'B. spinulosa' occurs in surrounding woodland. Both species are highly serotinous, although 'B. marginata' is an obligate seeder and 'B. spinulosa' is a resprouter. This project takes advantage of the recent fires of 2002 to examine factors operating during juvenile lifecycle stages to explain the observed habitat segregation. In the glasshouse under optimal moisture conditions, a reciprocal germination and seedling establishment experiment demonstrated that soil type was not a key factor contributing to habitat segregation. However, in the field both species had similar germination in the swamp, but 'B. marginata' had reduced germination in the drier woodland. The reduced 'B. marginata' germination may be caused by low soil moisture, and may determine habitat segregation. Additional glasshouse experiments will examine the effects of different soil moisture conditions on seedling growth and survival. Also, a reciprocal seedling transplant experiment will be conducted in the field to examine habitat effects on growth and survival. These results will be used to examine further the pronounced habitat segregation of these Banksia species.

AB - Post-fire regeneration studies have shown that plant species may segregate into different habitats early in the lifecycle. At Gibraltar Range in northern NSW, 'B. marginata' is largely confined to swamp margins, whereas 'B. spinulosa' occurs in surrounding woodland. Both species are highly serotinous, although 'B. marginata' is an obligate seeder and 'B. spinulosa' is a resprouter. This project takes advantage of the recent fires of 2002 to examine factors operating during juvenile lifecycle stages to explain the observed habitat segregation. In the glasshouse under optimal moisture conditions, a reciprocal germination and seedling establishment experiment demonstrated that soil type was not a key factor contributing to habitat segregation. However, in the field both species had similar germination in the swamp, but 'B. marginata' had reduced germination in the drier woodland. The reduced 'B. marginata' germination may be caused by low soil moisture, and may determine habitat segregation. Additional glasshouse experiments will examine the effects of different soil moisture conditions on seedling growth and survival. Also, a reciprocal seedling transplant experiment will be conducted in the field to examine habitat effects on growth and survival. These results will be used to examine further the pronounced habitat segregation of these Banksia species.

KW - Community Ecology (excl Invasive Species Ecology)

UR - http://trove.nla.gov.au/work/11407100

UR - http://www.ecolsoc.org.au/2003/index.html

M3 - Abstract

SP - 208

EP - 208

T2 - ESA 2003: 28th Annual Conference of the Ecological Society of Australia

Y2 - 8 December 2003 through 10 December 2003

ER -