Natural sites filling gaps cited by IUCN

Connected Sites: 37

Natural WHS that have been entered after the 2003/2004 publication of the "Filling the Gaps" document, which points out underrepresented themes and areas. Site should be labelled as such in that document, or referenced to "filling a gap" in later IUCN documents. Filling the Gaps

Connected Sites

  • Vredefort Dome
    Vredefort Dome
    South Africa
    Inscribed: 2005
    1.97
    35
    4
    meteorite impact
  • Rainforests of the Atsinanana
    Inscribed: 2007
    3.49
    43
    3
    Madagascar moist forests ecoregion
  • Tajik National Park
    Inscribed: 2013
    3.46
    28
    3
    tectonic sites
  • Namib Sand Sea
    Inscribed: 2013
    4.08
    113
    4
    Namib and Kalahari deserts habitat
  • Lakes of Ounianga
    Inscribed: 2012
    3.61
    6
    2
    Sudd-Sahelian savanna and flooded grasslands ecoregion
  • Sanganeb
    Inscribed: 2016
    3.04
    5
    1
    Red Sea corals
  • Anticosti
    Inscribed: 2023
    2.13
    6
    2
    "The 2021 IUCN study "Geological World Heritage: a revised global framework for the application of criterion (viii) of the World Heritage Convention" highlighted as a significant gap on the World Heritage List "the interface between Palaeontology and global change over geological timescales, especially the mass extinction events", noting that (...) the equally profound Palaeozoic extinctions at the end of the Ordovician, Devonian and Permian are not yet represented on the World Heritage List. As a representative site of the O/S boundary interval, the nominated property would therefore fill an important identified gap on the World Heritage List." (Official description)
  • Wadden Sea
    Wadden Sea
    Denmark, Germany, Netherlands
    Inscribed: 2009
    3.06
    292
    11
    European saline wetlands
  • 'Uruq Bani Ma'arid
    Inscribed: 2023
    2.59
    10
    1
    "its inscription would be a starting point to address a significant gap on the World Heritage List under criterion (ix) as it would be the only property to represent the Arabian Desert Udvardy Province." and "would also fill a gap on the World Heritage List following the delisting of the Arabian Oryx Sanctuary World Heritage property (Oman)." (AB ev)
  • Marquesas Islands
    Inscribed: 2024
    3
    0
    Polynesian rainforest
  • Gulf of California
    Inscribed: 2005
    3.50
    77
    6
    Gulf of California ecoregion
  • Cold winter deserts of Turan
    Cold winter deserts of Turan
    Kazakhstan, Turkmenistan, Uzbekistan
    Inscribed: 2023
    2.37
    29
    3
    Central Asian deserts (AB ev)
  • Evaporitic Karst and Caves
    Inscribed: 2023
    2.02
    52
    5
    "Evaporitic karst, both salt and gypsum, is identified as a gap on the World Heritage List in the 2008 IUCN World Heritage Caves and Karst Thematic Report and in the 2021 IUCN Geological World Heritage global framework." (AB ev)
  • Inscribed: 2025
    1.15
    6
    1
    "a 2020 IUCN World Heritage gap analysis called for the creation of a transnational serial site in the Upper Guinean part of the Guinean Forests of West Africa biodiversity hotspot to complement the existing Taï National Park" (AB ev)
  • Inscribed: 2013
    3.13
    37
    3
    cold winter desert - Taklamakan
  • Wrangel Island
    Inscribed: 2004
    2.53
    2
    1
    Tundra
  • Tugay forests
    Tugay forests
    Tajikistan
    Inscribed: 2023
    0.38
    4
    1
    "The nominated property would close an important gap on the World Heritage List as it overlaps with the Middle Amu Darya freshwater ecoregion, the Badghyz and Karabil semi-desert terrestrial ecoregion and the Hindu-Kush Highlands Udvardy biogeographical province, all of which are currently not represented on the World Heritage List." (AB ev)
  • Tropical Rainforest Sumatra
    Inscribed: 2004
    3.56
    41
    7
    tropical montane forests of Sumatra, Philippines and Sulawesi
  • Tehuacán-Cuicatlán Valley
    Inscribed: 2018
    3.00
    43
    5
    the TCV region has been identified in various past studies as a gap on the World Heritage List in terms of exceptional biodiversity values (IUCN ev)
  • Swiss Tectonic Arena Sardona
    Inscribed: 2008
    2.96
    118
    7
    tectonic sites
  • Socotra Archipelago
    Inscribed: 2008
    3.79
    20
    3
    Socotra ecoregion
  • Rock Islands
    Inscribed: 2012
    4.00
    31
    6
    Palau ecoregion
  • Putorana Plateau
    Inscribed: 2010
    3.46
    4
    2
    tundra
  • Okavango Delta
    Inscribed: 2014
    4.14
    85
    4
    habitats: flooded grasslands such as Okavango and the Sudd Swamps
  • Mount Hamiguitan
    Mount Hamiguitan
    Philippines
    Inscribed: 2014
    2.73
    13
    4
    tropical montane forests of Sumatra, Philippines and Sulawesi
  • Inscribed: 2012
    3.56
    9
    3
    tundra
  • Ilulissat Icefjord
    Inscribed: 2004
    4.14
    40
    5
    Polar systems (Arctic)
  • Hyrcanian Forests
    Hyrcanian Forests
    Azerbaijan, Iran
    Inscribed: 2019
    2.25
    26
    5
    Hyrcanian Forests Centre of Plant Diversity which is not yet represented on the World Heritage List and has been identified as a gap. Furthermore the nominated property is situated in the terrestrial ecoregions (Caspian Hyrcanian Mixed Forests and Elburz Range Forest Steppe) which are also not currently represented on the World Heritage List. (AB ev)
  • Dolomites
    Inscribed: 2009
    4.08
    252
    7
    stratigraphy
  • Chaîne des Puys
    Inscribed: 2018
    2.85
    102
    5
    ".. illustrate the overall continental break-up process and, thus, may becconsidered to fill a gap on the World Heritage List with regard to the theme of continental rifting." (AB ev)
  • Cape Floral Region
    Inscribed: 2004
    3.40
    170
    5
    Cape Floral habitat
  • Blue and John Crow Mountains
    Inscribed: 2015
    2.59
    41
    3
    The BJCM has also been identified as a gap in representation of World Heritage sites: it belongs to a Centre of Plant Diversity and an Udvardy biogeographic province not yet represented on the List and as noted above it overlaps with one of 78 most irreplaceable protected areas in the world (AB ev)
  • Bale Mountains National Park
    Inscribed: 2023
    3.01
    14
    1
    "IUCN’s 2013 global gap analysis noted the Bale Mountains as one of the 78 most irreplaceable protected areas for the conservation of the world’s amphibian, bird and mammal species." (AB ev)
  • Inscribed: 2024
    2.69
    7
    1
    "The 2021 IUCN thematic study on the application of criterion (viii) noted that the nominated property belongs to one of the evident geographical gaps (Central and East Asia) in current listings. The nominated property also represents desert lakes and playas (i.e. flat and dry desert basins), which are recognised as lacking appropriate recognition on the World Heritage List. In addition, the nominated property is seen as holding potential of filling a gap for evidencing historic climatic change." (AB ev)
  • Western Ghats
    Inscribed: 2012
    3.03
    60
    5
    Western Ghats ecoregion
  • Kenya Lake System
    Inscribed: 2011
    3.18
    68
    3
    Rift Valley Lakes habitat
  • Los Alerces National Park
    Inscribed: 2017
    3.68
    23
    4
    rainforests of Southern Chile