Breeding colonies of the New Zealand fur seal Arctocephalus forsteri

Occurrence Observation
最新バージョン Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node により出版 8月 3, 2024 Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node
公開日:
2024年8月3日
ライセンス:
CC-BY 4.0

DwC-A形式のリソース データまたは EML / RTF 形式のリソース メタデータの最新バージョンをダウンロード：

DwC ファイルとしてのデータ ダウンロード 19 レコード English で (6 KB) - 更新頻度: not planned
EML ファイルとしてのメタデータ ダウンロード English で (13 KB)
RTF ファイルとしてのメタデータ ダウンロード English で (13 KB)

説明

This dataset is from a paper by Dussex et al. looking at the low spatial genetic differentiation associated rapid recolonization of the New Zealand fur seal Arctocephalus forsteri.Population declines resulting from anthropogenic activities are of major consequence for the long-term survival of species because the resulting loss of genetic diversity can lead to extinction via the effects of inbreeding depression, fixation of deleterious mutations, and loss of adaptive potential. Otariid pinnipeds have been exploited commercially to near extinction with some species showing higher demographic resilience and recolonization potential than others. The New Zealand fur seal (NZFS) was heavily impacted by commercial sealing between the late 18th and early 19th centuries, but has recolonized its former range in southern Australia. The species has also recolonized its former range in New Zealand, yet little is known about the pattern of recolonization. Here, we first used 11 microsatellite markers (n = 383) to investigate the contemporary population structure and dispersal patterns in the NZFS (Arctocephalus forsteri). Secondly, we model postsealing recolonization with 1 additional mtDNA cytochrome b (n = 261) marker. Our data identified 3 genetic clusters: an Australian, a subantarctic, and a New Zealand one, with a weak and probably transient subdivision within the latter cluster. Demographic history scenarios supported a recolonization of the New Zealand coastline from remote west coast colonies, which is consistent with contemporary gene flow and with the species’ high resilience. The present data suggest the management of distinct genetic units in the North and South of New Zealand along a genetic gradient. Assignment of individuals to their colony of origin was limited (32%) with the present data indicating the current microsatellite markers are unlikely sufficient to assign fisheries bycatch of NZFSs to colonies.

データ レコード

この オカレンス（観察データと標本) リソース内のデータは、1 つまたは複数のデータ テーブルとして生物多様性データを共有するための標準化された形式であるダーウィン コア アーカイブ (DwC-A) として公開されています。 コア データ テーブルには、19 レコードが含まれています。

この IPT はデータをアーカイブし、データ リポジトリとして機能します。データとリソースのメタデータは、 ダウンロード セクションからダウンロードできます。 バージョン テーブルから公開可能な他のバージョンを閲覧でき、リソースに加えられた変更を知ることができます。

バージョン

次の表は、公にアクセス可能な公開バージョンのリソースのみ表示しています。

引用方法

研究者はこの研究内容を以下のように引用する必要があります。:

Dussex N, Robertson B C, Salis A T, Kalinin A, Best H, Gemmell N J (2024). Breeding colonies of the New Zealand fur seal Arctocephalus forsteri. Version 1.0. Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node. Occurrence dataset. https://nzobisipt.niwa.co.nz/resource?r=nzfs_breeding_colonys&v=1.0

権利

研究者は権利に関する下記ステートメントを尊重する必要があります。:

パブリッシャーとライセンス保持者権利者は Southwestern Pacific Ocean Biogeographic Information System (OBIS) Node。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF登録

このリソースは GBIF に登録されていません。

キーワード

Occurrence; Observation

連絡先

Nicholas Dussex
  • メタデータ提供者 ●
  • 最初のデータ採集者 ●
  • 連絡先
  • Researcher
Department of Zoology, University of Otago
Dunedin
NZ
Bruce C. Robertson
  • 最初のデータ採集者
School of Biological Sciences, University of Canterbury
Christchurch
NZ
Alexander T. Salis
  • 最初のデータ採集者
  • Researcher
Department of Zoology, University of Otago
Dunedin
NZ
Aleksandr Kalinin
  • 最初のデータ採集者
  • Researcher
School of Biological Sciences, University of Canterbury
Christchurch
NZ
Hugh Best
  • 最初のデータ採集者
  • Researcher
Marine Conservation Unit, Department of Conservation
Wellington
NZ
Neil J. Gemmell
  • 最初のデータ採集者
  • Researcher
School of Biological Sciences, University of Canterbury
Christchurch
NZ
Kevin Mackay
  • データ利用者

地理的範囲

New Zealand and Australia

座標（緯度経度） 南 西 [-48.025, 122.048], 北 東 [-33.761, 179.024]

収集方法

Dussex et al. (2016) investigated the contemporary population structure and dispersal patterns of the New Zealand fur seal by obtaining genetic samples from individuals in breeding colonies. Supplementary material provided by Dussex et al. (2016) include Mitochondrial Cytochrome b sequences for 261 NZ fur seal pups, Microsatellite genotypes for 383 NZ fur seal pups, and Microsatellite and Cytochrome b input data file for DIYABC

Study Extent Breeding colonies of New Zealand fur seal in New Zealand and Australia.

Method step description:

  1. Otariids are capable of significant dispersal, which means that analyzing genetic data from adults would likely underestimate the true population structure of the species. Moreover, high dispersal presents the possibility of intra- and inter-seasonal variation in the genetic composition of adults at colonies and haulouts (e.g., Robertson et al. 2006). In order to avoid a bias caused by high adult dispersal and yearly variation in dispersal, we sampled pups, as they are a direct genetic representation of each breeding colony (i.e., influenced by female philopatry) in any given year.
  2. Genetic samples were obtained from 397 NZFS pups at 19 breeding colonies covering the entire range of the species. For each pup, a small piece of skin was taken from the tip of a digit on a hind flipper using piglet ear notch pliers (Majluf and Goebel 1992) and stored in 70% ethanol.

書誌情報の引用

  1. Dussex, Nicolas et al. (2018). Data from: Low spatial genetic differentiation associated with rapid recolonization in the New Zealand fur seal Arctocephalus forsteri [Dataset]. Dryad. https://doi.org/10.5061/dryad.4v551
  2. Nicolas Dussex, Bruce C. Robertson, Alexander T. Salis, Aleksandr Kalinin, Hugh Best, Neil J. Gemmell, Low Spatial Genetic Differentiation Associated with Rapid Recolonization in the New Zealand Fur Seal Arctocephalus forsteri, Journal of Heredity, Volume 107, Issue 7, 2016, Pages 581–592 https://doi.org/10.1093/jhered/esw056

追加のメタデータ

marine, harvested by iOBIS

代替識別子 https://nzobisipt.niwa.co.nz/resource?r=nzfs_breeding_colonys