DOI: 10.1016/j.foreco.2015.10.040
Scopus记录号: 2-s2.0-84945574865
论文题名: Loss of habitat for a secondary cavity nesting bird after wildfire
作者: Stojanovic D. ; Webb nee Voogdt J. ; Webb M. ; Cook H. ; Heinsohn R.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 360 起始页码: 235
结束页码: 241
语种: 英语
英文关键词: Carrying capacity
; Forest
; Lathamus discolor
; Survival analysis
; Threatened species
; Tree hollow
Scopus关键词: Animals
; Birds
; Conservation
; Ecosystems
; Electric current carrying capacity (cables)
; Fires
; Stochastic systems
; Forest
; Lathamus discolor
; Survival analysis
; Threatened species
; Tree hollow
; Forestry
; abundance
; anthropogenic effect
; bird
; carrying capacity
; comparative study
; endangered species
; forest management
; habitat loss
; long-term change
; nesting behavior
; stochasticity
; survival
; wildfire
; Animalia
; Aves
; Lathamus discolor
; Psittacidae
英文摘要: Tree cavity dependent animals are sensitive to changes in cavity availability in forests. Fire is important in the long-term dynamics of cavity creation and loss, but there are few data on how fire impacts nesting resource availability for animals. We assessed the survival of 189 trees and 191 cavities used for nesting by an endangered secondary cavity nesting bird, the swift parrot Lathamus discolor, over a decade. A subset of monitored trees were burned in an uncontrolled fire. At the site of that fire, we compared swift parrot habitat quality before and after burning. We also evaluated the risk of total tree collapse due to stem destabilisation from basal scarring by calculating the critical failure stress for all monitored trees. Modelled persistence of unburned swift parrot nest cavities was more than twice that of scorched cavities over ten years. Likewise, unburned nest trees were more likely to still be standing at the end of the ten years than scorched trees. Fire caused an acute local increase in cavity and tree collapse. At the site of the fire, 62.8% of scorched nest cavities were destroyed compared to only 9.1% over the unburned remainder of the study area. Likewise, 48.6% of scorched nest trees collapsed at the fire affected site, compared to only 3.8% of unburned trees elsewhere. Burning associated tree collapse led to a significant decrease in tree diameter at breast height and number of potential cavities at monitored plots. This destroyed most of the existing nest cavity resource for swift parrots at the local scale and cavity abundance is unlikely to be replenished quickly. Loss of nesting resources may outweigh longer-term benefits of fire as an agent of cavity creation if animals miss opportunities for reproduction in locations where habitat is diminished by cumulative stochastic events and anthropogenic changes. © 2015 . Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65181
Appears in Collections: 影响、适应和脆弱性
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作者单位: Fenner School of Environment and Society, Australian National University, Australia; School of Zoology and Anthropology, Georg-August-University of Göttingen, Germany
Recommended Citation:
Stojanovic D.,Webb nee Voogdt J.,Webb M.,et al. Loss of habitat for a secondary cavity nesting bird after wildfire[J]. Forest Ecology and Management,2016-01-01,360