The removal of rodents from Yabu island allows survival of benefit species

Description

Enregistrements de données

Les données de cette ressource données d'échantillonnage ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 1 enregistrements.

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Versions

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Bulimaitoga M (2022): The removal of rodents from Yabu island allows survival of benefit species. v1.3. Training Organization. Dataset/Samplingevent. https://training-ipt-c.gbif.org/resource?r=birdlife_yabuisland&v=1.3

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est BirdLife International, Pacific Partnership Secretariat. En vertu de la loi, l'éditeur a abandonné ses droits par rapport à ces données et les a dédié au Domaine Public (CC0 1.0). Les utilisateurs peuvent copier, modifier, distribuer et utiliser ces travaux, incluant des utilisations commerciales, sans aucune restriction.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 2051e7db-8199-480a-b6f5-7f6b1fde4df4.  BirdLife International, Pacific Partnership Secretariat publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du Secretariat of the Pacific Regional Environment Programme.

Mots-clé

Samplingevent

Contacts

Couverture géographique

Yabu, also called by local people ‘Bird Island’ is a 7 ha, uninhabited island in Kadavu Province, Fiji (18° 50’ 40’’ S, 178° 30’ 08’’ E) (Figure 1). It is located 3.5 km from Buliya Island (home of the landowners); 63 km from Vunisia, Kadavu Island; and 25 km from Suva, Fiji’s capital. Yabu is only accessed by sea. On the south side, Yabu Island rises steeply from a narrow plateau, adjacent to the main beach, to a ridge that reaches 50 m at its highest point. The island is bound by cliffs on its west and north sides. Most of the cliffs are covered with vegetation all the way to the rocks at the bottom. There are a couple of cliff areas that are devoid of vegetation halfway to the bottom. There is a sparsely vegetated rock stack off the northern tip of the island. In addition to the main beach on the south side, there are two smaller ones on the east side. On this side the island slopes down from the ridge to the beaches.

Couverture temporelle

Données sur le projet

https://www.gbif.org/project/BID-PA2020-003-USE/using-invasive-species-and-biodiversity-data-for-decision-making-in-the-pacific-region

Les personnes impliquées dans le projet:

Méthodes d'échantillonnage

Rat Trapping 60 Snap traps baited with roasted coconut were deployed across the island following the established transect lines from the eradication operation. See the locations of the rat snap traps in relation to the original rat bait stations from the 2018 rat eradication operation in Appendix 1. The rat snap trap monitoring was conducted over 3 consecutive nights (17th – 19th February). The snap trap status in each station throughout all the transect lines was recorded at (6-8am the next morning). Bird Population Count The bird population count was conducted from 4pm to 6pm on 20th February 2020. The bird counts were carried out from a distance, in a boat, using binoculars and with the naked eye. The count started from the southern part of the island (camp site) around the western part of the island, the northern then the eastern side of the island. The number of roosting seabirds and nests along the coastline was recorded. Bird counts were conducted by two observers in which one concentrated on counting the Red footed boobies while the other observer counted the Brown boobies and the Lesser frigate birds. Land Bird Assessment Spot lighting is a search method used, at night, to find and catch birds using headlamps and torches to illuminate the sky to attract bird’s attention. This was conducted to monitor other ground nesting or burrowing seabirds that can potentially breed on the island. Yabu Island will likely attract ground nesting birds such as the collared petrel now that the rats have been removed. Spotlighting was conducted over 2 nights (19-20 February, 2020) at 2 different sites. The first night of spotlighting was conducted at a high elevation spot on the eastern side of the island and the second night conducted on the western side of the island, but along the beach. See Appendix 1 for the locations of the spot lighting sites. The bird species encountered during the 2 nights of spotlighting was recorded. Opportunistic Observation All general observations by each team member was recorded.

Description des étapes de la méthode:

1. Rat Trapping 60 Snap traps baited with roasted coconut were deployed across the island following the established transect lines from the eradication operation. See the locations of the rat snap traps in relation to the original rat bait stations from the 2018 rat eradication operation in Appendix 1. The rat snap trap monitoring was conducted over 3 consecutive nights (17th – 19th February). The snap trap status in each station throughout all the transect lines was recorded at (6-8am the next morning). Bird Population Count The bird population count was conducted from 4pm to 6pm on 20th February 2020. The bird counts were carried out from a distance, in a boat, using binoculars and with the naked eye. The count started from the southern part of the island (camp site) around the western part of the island, the northern then the eastern side of the island. The number of roosting seabirds and nests along the coastline was recorded. Bird counts were conducted by two observers in which one concentrated on counting the Red footed boobies while the other observer counted the Brown boobies and the Lesser frigate birds. Land Bird Assessment Spot lighting is a search method used, at night, to find and catch birds using headlamps and torches to illuminate the sky to attract bird’s attention. This was conducted to monitor other ground nesting or burrowing seabirds that can potentially breed on the island. Yabu Island will likely attract ground nesting birds such as the collared petrel now that the rats have been removed. Spotlighting was conducted over 2 nights (19-20 February, 2020) at 2 different sites. The first night of spotlighting was conducted at a high elevation spot on the eastern side of the island and the second night conducted on the western side of the island, but along the beach. See Appendix 1 for the locations of the spot lighting sites. The bird species encountered during the 2 nights of spotlighting was recorded. Opportunistic Observation All general observations by each team member was recorded.

Métadonnées additionnelles