Náttúrulegt birkilendi á Íslandi er kortlagning yfir alla náttúrulega birkiskóga og birkikjarr á Íslandi. Helstu upplýsingar eru hæð, þekja og aldur. Skilið er á milli núverandi hæðar og aldur fullvaxta birkis. Það er gert samkvæmt alþjóðlegum skilgreiningum um hæð trjágróðurs þar sem miðað er við hæð fullvaxta skógar. Birki var fyrst kortlagt á árunum 1972-1975 og var unnin leiðrétting á gögnunum og gerðar frekari greiningar á árunum 1987-1991. Gögnin voru því komin nokkuð til ára sinna þegar ákveðið var að hefja endurkortlagningu á öllu náttúrulegu birki á Íslandi. Fór sú vinna fram á árunum 2010-2014 og er núverandi þekja því afrakstur þeirrar vinnu. Flatarmál náttúrulegs birkis á Íslandi er 150.600 ha. Frá árinu 1987 hefur flatarmál birkis með sjálfsáningu aukist um 9% og nemur 13.000 ha. Gögnin voru upphaflega hugsuð fyrir mælikvarða 1:15.000, hins vegar var talsvert stór hluti landsins kortlagður í mælikvarða 1:5000 – 1:10.000.

Likelihood of Presence of Finback Whales in the Bay of Fundy and Port Hawkesbury Area Response Plan. The Coastal Oceanography and Ecosystem Research section (DFO Science) reviewed reported opportunistic whale sightings and local knowledge sources to estimate areas where Finback whales are seasonally present and delineate these areas. A version of this dataset was created for the National Environmental Emergency Center (NEEC) following their data model and is available for download in the Resources section. Cite this data as: Lazin, G., Hamer, A.,Corrigan, S., Bower, B., and Harvey, C. Data of: Likelihood of presence of Finback Whale in Area Response Planning pilot areas. Published: June 2018. Coastal Ecosystems Science Division, Fisheries and Oceans Canada, St. Andrews, N.B. https://open.canada.ca/data/en/dataset/7e2f85b3-19eb-4ecf-8557-69c8df1bc084

PURPOSE: The research survey provides a fisheries-independent source of information about all marine living organisms that are captured by the fishing trawl used to obtain samples in the southern Gulf of St. Lawrence. DESCRIPTION: Tow, catch, length frequency, and biological information for fish caught during the annual September research vessel trawl surveys in the southern Gulf of St. Lawrence (NAFO Division 4T). Abundance indices and spatial distribution patterns of commercial and non-commercial groundfish. The catch data that appear in this dataset SHOULD NOT BE USED FOR ECOLOGICAL ANALYSES INVOLVING CATCH RATES. Important factors such as vessel, fishing gear and diurnal periods must be accounted for to use these data in analyses. Please contact the data custodians if you are interested in using this data for any kind of ecological analyses involving catch rates. PARAMETERS COLLECTED: abundance estimates (ecological); distribution (ecological); species counts (ecological); gear (fishing); vessel information (fishing); point (spatial) NOTES ON QUALITY CONTROL: Scientific names listed in the survey species list have been mapped to recognized standards - marine taxa have been mapped to the World Register of Marine Species (WoRMS) using their online taxon match tool. All sampling locations were plotted on a map to perform a visual check confirming that the latitude and longitude coordinates were within the described sampling area. In 2003, because of a fire aboard the Alfred Needler, the Wilfred Templeman was used for the survey. However, no comparative fishing experiments have been conducted between the Alfred Needler and the Wilfred Templeman. We are therefore unable to integrate the indices derived for 2003 to the remainder of the survey time-series. SAMPLING METHODS: Sampling Method: Consult the "Protocols for research vessel cruises within the Gulf Region (dermersal fish) (1970-1980)" report, link provided in the citations list. USE LIMITATION: To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.

The National Ecological Framework for Canada's "Land and Water Area by Province/Territory and Ecoregion” dataset provides land and water area values by province or territory for the Ecoregion framework polygon, in hectares. It includes codes and their English and French descriptions for a polygon’s province or territory, total area, land-only area and large water body area.

Canadian nesting zones are broad, general areas, corresponding roughly to Bird Conservation Regions (version 2014. updates have been made in 2022) https://www.canada.ca/en/environment-climate-change/services/avoiding-harm-migratory-birds/general-nesting-periods/nesting-periods.html The limits of nesting zones reflect: - variations in species diversity - variations in mean annual temperature - similarities in the nesting periods within and between zones Changes in the nesting period between adjacent nesting zones occur as a gradient. When working near the boundary of a zone, you should also consider the nesting period of the adjacent zone.. More detail technical information are available here: https://publications.gc.ca/site/eng/9.843362/publication.html Warning: This technical information on timing of nesting migratory birds are published by EC to support the planning of activities in order to reduce the risk of detrimental effects to migratory birds, their nests and eggs. This technical information constitutes advice only. This information does not provide an authorization for harming or killing migratory birds or for the disturbance, destruction or taking of nests or eggs as prohibited under the MBR. This information does not provide a guarantee that the activities will avoid contravening the MBR or other laws and regulations. This is general information not intended to be relied on as official advice concerning the legal consequences of any specific activity. It is not a substitute for the MBCA, the MBR, or any other legislation. It is the responsibility of individuals and companies to assess their risk with regards to migratory birds and design relevant avoidance and mitigation measures.

Dreifing hvítabjarna sem sést hafa á Íslandi í mismunandi mælihvarði. Þekja ni_G500v_hvitabjorn, punktalag. [Distribution of polar bear sightings in Iceland in different scales. Point layer ni_G500v_hvitabjorn.] Ekki er hægt að tala um hvítabirni sem íslenska tegund en þó hafa þeir tekið hér land af og til og teljast því til flökkudýra. Upplýsingar eru til um rúmlega 560 hvítabirni sem skráðir hafa verið hérlendis frá upphafi landnáms. Síðast varð vart við hvítabjörn við Höfðaströnd í Jökulfjörðum 2024. Viss ónákvæmni er þarna um að ræða því vafalaust hafa einhver dýr gengið hér á land án þess að menn hafi haft þar vitneskju um eða skráð sérstaklega. [Polar bears are not native to Iceland, although they do occasionally turn up in Iceland and are thus classified as vagrants. Information exists on just over 560 polar bears recorded as having arrived in Iceland from the beginning of human settlement on the island to the present day. This is a somewhat imprecise figure, since polar bears have undoubtedly come ashore without their presence going noticed, while bear sightings and encounters were not always documented in the past. The last polar bear observation was at Höfðaströnd, Jökulfjörður, Westfjords, in 2024. Table entries are in Icelandic.] Nákvæmni tíma [Accuracy of time]: varies depending on the source. If only the year of the sighting is known, you find this year under fitjueigindi 'ártal 1' (artal1). In case there are more details known, there are as well entries for fitjueigindir 'dags hvítabjarnakomur' (dagsHvitabjarnakomur) or 'ártið' (artid). If the year is not quite definit, there is an entry in fitjueigindi 'um' (um). Entries in both fitjueigindir 'ártal 1' and 'ártal 2' (artal1, artal2) define a timespan for the sighting. Nákvæmni staðarins [Accuracy of location]: varies depending on the source. All sightings for Íceland are grouped in the center of Iceland and the value for fitjueiginde 'nákvæmni XY' (nakvaemniXY) is '9000'. Sightings for Norðurland are grouped on Tröllaskagi, sightings for Norðvestur are placed in the center of the Vestfjords, sightings on Melrakki are grouped just off the north coast (nakvaemniXY = 3000 or 2000). If only the area is know, the data is placed in the center of the corresponding 10-km-reit (nakvaemniXY = 1000). If the location is known in detail, t.d. bæ, the entry for 'nakvaemniXY' is '100'. Sometimes the sources do not state the location of the sighting but the farm where the animal was processed [unnin]. And one has to keep in mind that a 'dot' in the data set can also represent an animal that has been in Iceland for a longer period of time and has traveled a longer distance. If there are several sightings for the same place or area, the entries are scatterd using a 1-km-reit system. Entries on age, sex, and size or weight are often missing. Fitjueigindi 'RM númer' (RMnumer) corresponds with the Natural History Collection of Náttúrufræðistofnun. Heimild [Source]: Náttúrurfræðistofnun Íslands and the publication: Rósa Rut Þórisdóttir 2018. Hvítabirnir á Íslandi. Reykjavík: Bókaútgáfan Hólar.

Study area is a polygon feature class showing the extent of where most of the bird sightings were recorded and then used in the atlas. A few rare species have been included as well that go beyond this area.

Many cetacean species were depleted in Canadian Pacific waters by commercial whaling, which ended in 1967. Although some populations have since shown evidence of recovery, there is limited information about the current abundance and geographic distribution of many species, particularly in difficult-to-survey offshore regions. This lack of baseline data hampers conservation status assessments, including estimating population-level impacts of anthropogenic activities. From July to early September 2018, we conducted ship-based surveys of cetaceans throughout the coastal and offshore waters of British Columbia. Density surface modelling (DSM) was used to produce spatially-explicit abundance estimates and distribution maps for four commonly-encountered cetacean species: the humpback whale (Megaptera novaeangliae), fin whale (Balaenoptera physalus), Dall’s porpoise (Phocoenoides dalli) and harbour porpoise (Phocoena phocoena). We estimated abundances of 7,030 (95% CI = 5,733-8,620) humpback whales, 2,893 (95% CI = 2,171-3,855) fin whales, 23,692 (95% CI = 19,121-29,356) Dall’s porpoises and 5,207 (95% CI = 2,769-9,793) harbour porpoises throughout Canadian Pacific waters. Our results complement design-based abundance estimates calculated from the same survey data, and can be compared with past habitat modelling studies and historical whaling catch data to estimate the extent of recovery of previously harvested populations. The return of these predators to habitats from which they were previously extirpated will have important ecosystem-level implications. The DSM results can contribute to calculations of Potential Biological Removal estimates to inform fisheries bycatch, as well as providing spatial data that can be used to assess the risk of entanglements, ship strikes, acoustic disturbance, and other anthropogenic threats. This dataset contains model-predicted densities of four commonly-encountered cetacean species (humpback whale, fin whale, Dall's porpoise and harbour porpoise) that were estimated using ship-based, visual survey data collected during the Pacific Region International Survey of Marine Megafauna (PRISMM) in July-August of 2018. Abundance of each species (where relevant) is provided for three gridded strata (25 km2 cell size) in the Pacific Region: one for the offshore, extending to Canada’s exclusive economic zone (EEZ), and two for coastal areas (the North Coast and the Salish Sea).

Rare species is a point feature class containing rare species sightings.