Extent of Occurrence and Area of Occupancy of Tallow Tree (Sapium sebiferum): Using the Red list Criteria for Documenting Invasive Species Expanse
IR@IHBT: CSIR-Institute of Himalayan Bioresource Technology, Palampur
View Archive Info| Field | Value | |
| Title |
Extent of Occurrence and Area of Occupancy of Tallow Tree
(Sapium sebiferum): Using the Red list Criteria for Documenting
Invasive Species Expanse
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| Creator |
Jaryan, V
Uniyal, S K Kumar, Amit Gupta , R C Singh, R D |
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| Subject |
Plant sciences
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| Description |
Invasion by exotic species is a prime threat to
biodiversity and information on their expanse is pivotal for
effective management of bioresources, with this perception
we worked out the extent of occurrence (EOO) and area of
occupancy (AOO) of Sapium sebiferum (L.) Roxb. in the
Himalayan state of Himachal Pradesh (HP), as is done for
IUCN plant threat categorization. Three methods namely
aerographic method (AM), cartographic method (CM) and
cartographic method by conglomerates (CMC) were
deployed and compared for the same in the geographic
information system environment. As expected, the three
results varied amongst themselves, with AOO being
1127.58, 4046.00 and 734.12 sq km for AM, CM and
CMC, respectively. On the other hand the EOO was
4,091.44 sq km. This is a considerable expanse and
amounts to more than 7 % of the total geographical area of
HP. Based on field surveys and observations, CMC was
found to give the most reliable estimates. Though, primarily
devised by IUCN for threat categorization of native
species, we feel that EOO and AOO may appropriately be
applied to invasive species also.
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| Date |
2013
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://ihbt.csircentral.net/1345/1/134_Extent_of_occurrence.pdf
Jaryan, V and Uniyal, S K and Kumar, Amit and Gupta , R C and Singh, R D (2013) Extent of Occurrence and Area of Occupancy of Tallow Tree (Sapium sebiferum): Using the Red list Criteria for Documenting Invasive Species Expanse. Journal of National Academy Science Letters, 36 (1). pp. 85-91. |
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| Relation |
http://ihbt.csircentral.net/1345/
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