CANOPY-STORED SEED BANKS OF ALLOCASUARINA-DISTYLA AND A-NANA IN RELATION TO TIME SINCE FIRE
Allocasuarina distyla is single-stemmed and fire-sensitive; A. nana resprouts multiple stems from a lignotuber following fire. Vegetative above-ground plant growth correlates with seed bank size in A. distyla better than in A. nana. There is c10 times the canopy-stored seed in A. nana 8 yr after fir...
| मुख्य लेखकों: | , |
|---|---|
| स्वरूप: | Journal article |
| प्रकाशित: |
1993
|
| _version_ | 1826285037103874048 |
|---|---|
| author | Pannell, J Myerscough, P |
| author_facet | Pannell, J Myerscough, P |
| author_sort | Pannell, J |
| collection | OXFORD |
| description | Allocasuarina distyla is single-stemmed and fire-sensitive; A. nana resprouts multiple stems from a lignotuber following fire. Vegetative above-ground plant growth correlates with seed bank size in A. distyla better than in A. nana. There is c10 times the canopy-stored seed in A. nana 8 yr after fire than in A. distyla 9 yr after fire. The critical period to initial seed set in A. distyla is between 7-9 yr. In A. nana, this period is typically longer but appears to depend on the age of the seed-producing genets. The age structure of the seed banks in both species remains more or less constant in time, with most seed being young. Seed viability declines in A. distyla from an initial 60% to <10% within 12 yr after seed set. A similar pattern appears likely for A. nana, although initial seed viability is c40%. Attrition in seed viability is attributed to seed predation by insects, fungal attack and seed senescence. -from Authors |
| first_indexed | 2024-03-07T01:22:52Z |
| format | Journal article |
| id | oxford-uuid:90f671a9-cf0b-448b-9c9a-c1e3b10562eb |
| institution | University of Oxford |
| last_indexed | 2024-03-07T01:22:52Z |
| publishDate | 1993 |
| record_format | dspace |
| spelling | oxford-uuid:90f671a9-cf0b-448b-9c9a-c1e3b10562eb2022-03-26T23:15:12ZCANOPY-STORED SEED BANKS OF ALLOCASUARINA-DISTYLA AND A-NANA IN RELATION TO TIME SINCE FIREJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:90f671a9-cf0b-448b-9c9a-c1e3b10562ebSymplectic Elements at Oxford1993Pannell, JMyerscough, PAllocasuarina distyla is single-stemmed and fire-sensitive; A. nana resprouts multiple stems from a lignotuber following fire. Vegetative above-ground plant growth correlates with seed bank size in A. distyla better than in A. nana. There is c10 times the canopy-stored seed in A. nana 8 yr after fire than in A. distyla 9 yr after fire. The critical period to initial seed set in A. distyla is between 7-9 yr. In A. nana, this period is typically longer but appears to depend on the age of the seed-producing genets. The age structure of the seed banks in both species remains more or less constant in time, with most seed being young. Seed viability declines in A. distyla from an initial 60% to <10% within 12 yr after seed set. A similar pattern appears likely for A. nana, although initial seed viability is c40%. Attrition in seed viability is attributed to seed predation by insects, fungal attack and seed senescence. -from Authors |
| spellingShingle | Pannell, J Myerscough, P CANOPY-STORED SEED BANKS OF ALLOCASUARINA-DISTYLA AND A-NANA IN RELATION TO TIME SINCE FIRE |
| title | CANOPY-STORED SEED BANKS OF ALLOCASUARINA-DISTYLA AND A-NANA IN RELATION TO TIME SINCE FIRE |
| title_full | CANOPY-STORED SEED BANKS OF ALLOCASUARINA-DISTYLA AND A-NANA IN RELATION TO TIME SINCE FIRE |
| title_fullStr | CANOPY-STORED SEED BANKS OF ALLOCASUARINA-DISTYLA AND A-NANA IN RELATION TO TIME SINCE FIRE |
| title_full_unstemmed | CANOPY-STORED SEED BANKS OF ALLOCASUARINA-DISTYLA AND A-NANA IN RELATION TO TIME SINCE FIRE |
| title_short | CANOPY-STORED SEED BANKS OF ALLOCASUARINA-DISTYLA AND A-NANA IN RELATION TO TIME SINCE FIRE |
| title_sort | canopy stored seed banks of allocasuarina distyla and a nana in relation to time since fire |
| work_keys_str_mv | AT pannellj canopystoredseedbanksofallocasuarinadistylaandananainrelationtotimesincefire AT myerscoughp canopystoredseedbanksofallocasuarinadistylaandananainrelationtotimesincefire |