Biodiversity

Species Profile and Threats Database


For information to assist proponents in referral, environmental assessments and compliance issues, refer to the Policy Statements and Guidelines (where available), the Conservation Advice (where available) or the Listing Advice (where available).
 
In addition, proponents and land managers should refer to the Recovery Plan (where available) or the Conservation Advice (where available) for recovery, mitigation and conservation information.

EPBC Act Listing Status Listed as Endangered
Listing and Conservation Advices Commonwealth Listing Advice for Norfolk Island Flora - 16 Endangered Species (Threatened Species Scientific Committee (TSSC), 2003z) [Listing Advice].
 
Recovery Plan Decision Recovery Plan required, included on the Commenced List (1/11/2009).
 
Adopted/Made Recovery Plans Norfolk Island Region Threatened Species Recovery Plan (Director of National Parks (DNP), 2010) [Recovery Plan].
 
Federal Register of
    Legislative Instruments
Inclusion of species in the list of threatened species under section 178 of the Environment Protection and Biodiversity Conservation Act 1999 (03/11/2003) (Commonwealth of Australia, 2003a) [Legislative Instrument].
 
Scientific name Senecio evansianus [55340]
Family Asteraceae:Asterales:Magnoliopsida:Magnoliophyta:Plantae
Species author Belcher
Infraspecies author  
Reference Kew Bulletin 47(4): 765 (1992).
Distribution map Species Distribution Map

This is an indicative distribution map of the present distribution of the species based on best available knowledge. See map caveat for more information.

Illustrations Google Images

Scientific name: Senecio evansianus

Conventionally accepted as Senecio evansianus (Green 1994).

Senecio evansianus is a low growing herb, growing to 3–30 cm in height, that is often woody at the base. Stems are hairy near the base, with crowded leaves that have hairy margins and undersides. Lower leaves have only short stalks (subpetiolate), are obovate (egg-shaped) and blunt. The leaves of the upper stem are lance-shaped with slightly serrated margins and are occasionally arranged along the stem symmetrically (pinnately). Upper leaves are small and more pointed lanceolate in shape (Green 1994). The flower heads are a loose, flat to convex grouping of 10–20 yellow flowers each with four or five petals. Three or four cup-shaped bracteoles (leaves that act to protect flower buds as they develop), 1.5–2 mm long and 0.5 mm wide, along with seven to nine involucral bracts (leaves that sit below the flower head) 4–5 mm long, surround each flower. Only one seed is produced and is 2–2.5 mm long, ribbed, hard, and brown in colour. The seed has a fine covering of hairs known as pappus hairs that are easily detached (Green 1994).

The species is endemic to Norfolk Island, and has been recorded at the following locations (DNP 2010; Green 1994):

  • Rocky Point
  • Bumbora Reserve above Cresswell Bay
  • Bloody Bridge
  • East of Bloody Bridge.

Surveys undertaken in 2003 identified less than 200 mature plants (TSSC 2003z).

Senecio evansianus occurs in small numbers in the Hundred Acres Reserve on Norfolk Island (NIPFS 2003b).

The species is thought to be restricted to well-watered clay soils beneath open stands of Norfolk Island Pine (Araucaria heterophylla) (Green 1994).

The main threat to Senecio evansianus is competition from weeds, particularly Kikuyu (Pennisetum clandestinum) (DNR 2010).

Senecio evansianus is included in the National Norfolk Island Region Threatened Species Recovery Plan (DNR 2010). Specific actions identified to aid in the recovery of the species include:

  • Weed control activities.
  • Forest revegetation, including seed collection and propagation, and replanting of the species in shaded areas.
  • Implementation of quarantine measures to protect the island's biodiversity.
  • Engagement of the community.

Management documents for Senecio evansianus can be found at the start of this profile. Other documents relevant to the species include:

  • Hundred Acres Reserve Plan of Management Part B Section Six (NIPFS 2003b).

The following table lists known and perceived threats to this species. Threats are based on the International Union for Conservation of Nature and Natural Resources (IUCN) threat classification version 1.1.

Threat Class Threatening Species References
Ecosystem/Community Stresses:Indirect Ecosystem Effects:Restricted geographical distribution (area of occupancy and extent of occurrence) Commonwealth Listing Advice for Norfolk Island Flora - 16 Endangered Species (Threatened Species Scientific Committee (TSSC), 2003z) [Listing Advice].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation Pennisetum clandestinum (Kikuyu) Norfolk Island Region Threatened Species Recovery Plan (Director of National Parks (DNP), 2010a) [State Recovery Plan].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation by weeds Norfolk Island Region Threatened Species Recovery Plan (Director of National Parks (DNP), 2010a) [State Recovery Plan].
Species Stresses:Indirect Species Effects:Low numbers of individuals Commonwealth Listing Advice for Norfolk Island Flora - 16 Endangered Species (Threatened Species Scientific Committee (TSSC), 2003z) [Listing Advice].

Director of National Parks (DNP) (2010). Norfolk Island Region Threatened Species Recovery Plan. [Online]. Canberra, Director of National Parks Department of the Environment, Water, Heritage and the Arts. Available from: http://www.environment.gov.au/biodiversity/threatened/publications/recovery/norfolk-island.html.

Green, P.S. (1994). Norfolk Island & Lord Howe Island. In: Flora of Australia. 49:1-681. Canberra, ACT: Australian Government Publishing Service.

Norfolk Island Parks and Forestry Service (NIPFS) (2003d). Hundred Acres Reserve Plan of Management Part B Section Six. [Online]. Available from: http://www.info.gov.nf/registry_lands/POMs/Section%206%20-%20Hundred%20Acres.pdf.

Threatened Species Scientific Committee (TSSC) (2003z). Commonwealth Listing Advice for Norfolk Island Flora - 16 Endangered Species. [Online]. Available from: http://www.environment.gov.au/biodiversity/threatened/species/norfolk-island-flora-endangered.html.

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This database is designed to provide statutory, biological and ecological information on species and ecological communities, migratory species, marine species, and species and species products subject to international trade and commercial use protected under the Environment Protection and Biodiversity Conservation Act 1999 (the EPBC Act). It has been compiled from a range of sources including listing advice, recovery plans, published literature and individual experts. While reasonable efforts have been made to ensure the accuracy of the information, no guarantee is given, nor responsibility taken, by the Commonwealth for its accuracy, currency or completeness. The Commonwealth does not accept any responsibility for any loss or damage that may be occasioned directly or indirectly through the use of, or reliance on, the information contained in this database. The information contained in this database does not necessarily represent the views of the Commonwealth. This database is not intended to be a complete source of information on the matters it deals with. Individuals and organisations should consider all the available information, including that available from other sources, in deciding whether there is a need to make a referral or apply for a permit or exemption under the EPBC Act.

Citation: Department of the Environment (2014). Senecio evansianus in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Thu, 18 Sep 2014 21:26:01 +1000.