説明
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、20 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。:
Nako E, Matheus S, Fabiano E (2025). Small mammals occurrence across Namibia, 2023. Version 1.0. University of Namibia. Occurrence dataset. https://cloud.gbif.org/africa/resource?r=small_mammals_of_namibia&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 University of Namibia。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF登録
このリソースをはGBIF と登録されており GBIF UUID: de6a2f72-361a-4bc1-aa16-0f012e95aa46が割り当てられています。 Participant Node Managers Committee によって承認されたデータ パブリッシャーとして GBIF に登録されているUniversity of Namibia が、このリソースをパブリッシュしました。
キーワード
Occurrence; small mammals; Namibia; environmental gradient; taxonomic presence
連絡先
- 連絡先
- Research fellow
- 最初のデータ採集者
- Undergraduate student
- 連絡先
- Research fello
- +264818448874
- データ利用者
地理的範囲
This dataset encompasses small mammal occurrence records collected across seven administrative regions in Namibia: Khomas, Oshikoto, Kunene, Hardap, //Kharas, and Zambezi. These regions span diverse ecological and climatic zones, from hyper-arid deserts to mesic woodlands, offering rich spatial and habitat coverage. Khomas Region (approx. 22.56° S, 17.08° E) Located in central Namibia, Khomas includes the elevated Khomas Highland and parts of the Central Plateau. The region features semi-arid thornbush savanna and rugged topography, serving as a transition zone between the Namib Desert and interior highlands. Oshikoto Region (approx. 18.47° S, 16.80° E) Situated in north-central Namibia, Oshikoto lies within the Cuvelai Basin. The region is characterized by mopane woodlands and ephemeral drainage systems, with a semi-arid climate and seasonal wetlands influencing local small mammal communities. Kunene Region (approx. 18.74° S, 13.99° E) Covering northwestern Namibia, Kunene spans a gradient from arid desert systems to mountainous and semi-arid savannas. It includes parts of the Kaokoveld and Etendeka Plateaus, supporting desert-adapted mammals and unique microhabitats. Hardap Region (approx. 24.35° S, 17.67° E) Located in south-central Namibia, Hardap consists of escarpment areas, ephemeral river valleys, and karoo shrubland. It experiences low and erratic rainfall, with sparse vegetation and isolated water sources shaping the distribution of mammalian fauna. //Kharas Region (approx. 27.61° S, 17.52° E) The southernmost and largest region in Namibia, //Kharas, is dominated by the Namib Desert, rocky hills, and open gravel plains. It includes sections of the Succulent Karoo biome and supports highly xeric-adapted small mammals. Zambezi Region (approx. 17.50° S, 24.27° E) Located in the far northeastern tip of Namibia, Zambezi is ecologically distinct with high rainfall and permanent water systems. It forms part of the Zambezi floodplain and miombo woodland belt, harbouring rich biodiversity and unique mammal assemblages.
| 座標（緯度経度） | 南 西 [-27.878, 12.261], 北 東 [-17.56, 23.95] |
|---|
生物分類学的範囲
This dataset includes small mammal records from two orders: Rodentia and Macroscelidea, representing three families and a total of seven genera. These taxa were recorded during field surveys conducted across various ecological regions in Namibia. Order Rodentia Family Nesomyidae: Petromyscus Family Muridae: Tatera, Desmodillus, Aethomys, Steatomys, Micaela Order Macroscelidea Family Macroscelididae: Elephantulus The dataset primarily features rodents, including desert-adapted gerbils (Tatera, Desmodillus), rock mice (Petromyscus), and other small murids. It also includes elephant shrews (Elephantulus), which are insectivorous mammals with distinct ecological roles.
| Series | Tatera leucogaster |
|---|---|
| Species | Petromyscus collinus, Petromyscus collinus, Desmodillus auricularis, Desmodillus auricularis, Desmodillus auricularis, Tatera leucogaster, Desmodillus auricularis, Tatera brantsii, Desmodillus auricularis, Tatera leucogaster, Elephantulus rufescens, Elephantulus rufescens, Petromyscus collinus, Petromyscus collinus, Petromyscus collinus, Aethomys kaiseri, Steatomys pratensis, Micaelamys namaquensis, Micaelamys namaquensis |
時間的範囲
| 生成(収集）期間 | November to December 2023 |
|---|
プロジェクトデータ
The project has 4 primary and measurable objectives as follows: 1. Streamlined National Reporting Across Biodiversity-related Multi-lateral Environmental Agreements 2. National Scale and Trans-boundary Land-Use Planning (i.e., Protected Areas, Land Degradation and Restoration Strategies) is Guided by the Outputs of the Spatial Biodiversity Data Products 3. Increased Capacity for the Sustained Production of National-scale Spatial Biodiversity Data Products 4. Upscaled Impacts to other African Countries through the Provision of Technical Documentation and Workflows for Spatial Data Products The current formulation of the post2020 Global Biodiversity Framework includes multiple spatially based goals and targets (e.g., Goal A (area, connectivity and integrity of ecosystems), Goal B (national environmental accounts), Target 1 (land and sea-use change); Target 2 (area-based restoration), Target 3 (area-based protection), Target 10 (area under sustainable agriculture and forest management), etc.). New techniques integrating nationally based data with remotely sensed data products are emerging that can inform more strategic and sustainable land-use management that address multiple policy targets across multiple conventions addressing such issues as land degradation (i.e. UN Convention on Combating Desertification (UNCCD)), biodiversity conservation (i.e., UN Convention on Biological Diversity (UNCBD)), restoration (both UNCCD and UNCBD), and carbon sequestration (i.e., UN Framework Convention on Climate Change (UNFCCC) as well as more specific national development policies (e.g., agricultural policy governing livestock grazing). These efforts include spatial analyses pioneered in Africa (spatial biodiversity assessments using Red-List of Ecosystem methodology) along with new approaches for defining, mapping, and measuring land-degradation in relation to conservation, restoration, and carbon sequestration targets. This approach will provide direct benefits in terms of more integrated and sustainable approaches to the management of ecosystems in Namibia and neighboring countries and the tracking of related targets under multiple conventions. Having the spatial data products managed on a spatial data repository and accessible through a customizable MEA Tracking Platform will ensure data collection is directly serving policy needs and the tracking and guidance for targets is streamlined across multiple agencies with land-use planning mandates. This approach will lower the threshold for Namibia to develop its own national spatial monitoring
| タイトル | Establishing Capacity for the Sustained Production of National Spatial Biodiversity Data Products: Guiding Progress towards the post2020 Global Biodiversity Framework Goals and Targets |
|---|
プロジェクトに携わる要員:
- 研究代表者
- 連絡先
収集方法
Within each quarter-degree cell, standardized 50 x 50 meter plots were established for small mammal trapping. In nine of the twelve cells, six such plots were selected—three intensively sampled and three randomly selected. Site selection considered factors like habitat type, human disturbance, and accessibility. Plots were deliberately positioned to capture contrasts between relatively undisturbed (natural) and more impacted environments. Fifteen Sherman live traps were deployed per plot, arranged along three 50-meter transects spaced 10 meters apart, with five traps per transect. Bait consisted of peanut butter and oats, and traps were set between 16:00 and 19:00, placed near features such as shrubs and logs to increase capture likelihood. Traps were checked early each morning (06:00–09:00) for three consecutive days. Captured individuals were identified to species, and information such as sex, body weight, body length, tail length, and age class was recorded. Animals were photographed and released at the site of capture.
| Study Extent | This study was carried out across Namibia at twelve distinct sampling locations strategically selected across Namibia to capture a range of habitats, environmental gradients, and species richness. the study period was between November and December 2025. These sites were distributed across nine regions: Kunene, Oshana, Oshikoto, Zambezi, Kavango East, Khomas, Hardap, and //Kharas, each representing different biomes and climatic conditions. Sampling sites were based on quarter-degree cells, each approximately 25 x 25 km in size, chosen for their ecological heterogeneity, including variation in vegetation, soil types, and biome structure. The northern regions (Kunene, Oshana, Oshikoto, Zambezi, Kavango East) are characterized by a subtropical semi-arid to arid climate with rainfall ranging between 700 mm and 400 mm. Vegetation includes mopane woodlands, Acacia savannas, and shrublands. The central regions (Khomas and Hardap) include arid environments with annual rainfall between 50–150 mm, dominated by desert shrublands and escarpment landscapes. The southern region, //Kharas, encompasses the Namib Desert and is characterized by extremely arid conditions with rainfall often below 100 mm, supporting highly adapted desert species. Three of the twelve quarter-degree cells—located in Kunene, Zambezi, and //Kharas—were further subdivided into 5 x 5 km sub-cells for more intensive coverage due to their ecological significance and representation of three distinct biomes: Acacia tree and shrub savannah (Kunene), desert (//Kharas), and broadleaved tree and shrub savannah (Zambezi). |
|---|---|
| Quality Control | To ensure consistency and data quality, all Sherman traps were cleaned, inspected, and calibrated before deployment. Trap mechanisms were adjusted to optimize sensitivity and reduce injury risk. Field personnel were trained in species identification, animal handling, and ethical sampling techniques. Each plot and trap location was georeferenced using GPS to ensure precise spatial tracking. To minimize observer bias, teams followed a standardized sampling protocol, and trapping was carried out under similar climatic conditions across sites. Captured animals were marked using non-toxic permanent markers to avoid double-counting during repeated visits. |
Method step description:
- Site Selection: Based on quarter-degree cells distributed across ecological zones, emphasizing environmental variation. Plot Establishment: 50 x 50 meter plots delineated at each site, stratified by disturbance and accessibility. Trap Setup: 15 Sherman traps placed in three transects per plot, baited with peanut butter and oats. Daily Monitoring: Traps were activated from 18:00 to 06:00 for three nights; animals checked each morning. Data Collection: For each captured individual, weight, body length, tail length, sex, and age were recorded; tissue samples and photographs taken. Release: Animals were released at their original capture sites. Post-Trapping: Traps were closed during daylight to avoid accidental captures and were retrieved after three days.
追加のメタデータ
| 謝辞 | |
|---|---|
| 目的 | |
| メンテナンス内容 | The dataset will be maintained on an as-needed basis. Updates may be made when new data become available, when taxonomic changes occur, or when corrections or user feedback are received. Although there is no fixed update schedule, the dataset curator will make sure the information remains accurate and relevant. Significant changes or additions will be documented in updated versions of the dataset. |
| 代替識別子 | https://cloud.gbif.org/africa/resource?r=small_mammals_of_namibia |