mudflat
Mudflats or mud flats, also known as tidal flats or, in Ireland, slob or slobs, are coastal wetlands that form in intertidal areas where sediments have been deposited by tides or rivers. A global analysis published in 2019 suggested that tidal fl ...
s and shoreline of the Solway Firth about 10 km south of
Dumfries
Dumfries ( ; sco, Dumfries; from gd, Dùn Phris ) is a market town and former royal burgh within the Dumfries and Galloway council area of Scotland. It is located near the mouth of the River Nith into the Solway Firth about by road from the ...
, in
Dumfries and Galloway
Dumfries and Galloway ( sco, Dumfries an Gallowa; gd, Dùn Phrìs is Gall-Ghaidhealaibh) is one of 32 unitary council areas of Scotland and is located in the western Southern Uplands. It covers the counties of Scotland, historic counties of ...
, Scotland. It lies between the River Nith and the Lochar Water, and consists of a variety of wetland habitats including bare mud and sand, merse and marshes, and is fringed by neutral grassland on the landward side. A nature reserve was designated in 1957 at the instigation of the Duke of Norfolk. The NNR covers an area of and is an internationally important wintering site for waterfowl and wading birds.
The NNR is now managed by NatureScot, but remains under private ownership, being managed by SNH under lease agreements. As much of the reserve is intertidal, Crown Estate Scotland are one of the major landowners. Management of the site seeks to balance the human activities (fishing, wildfowling and farming interests) with those of nature.
Ecology
Virtually the entire
Svalbard
Svalbard ( , ), also known as Spitsbergen, or Spitzbergen, is a Norwegian archipelago in the Arctic Ocean. North of mainland Europe, it is about midway between the northern coast of Norway and the North Pole. The islands of the group range ...
population of barnacle goose (roughly 38,000 as of 2015) overwinters here. More than 140,000 wading birds, including
pink-footed geese
The pink-footed goose (''Anser brachyrhynchus'') is a goose which breeds in eastern Greenland, Iceland and Svalbard. It is migratory, wintering in northwest Europe, especially Ireland, Great Britain, the Netherlands, and western Denmark. The na ...
curlews
The curlews () are a group of nine species of birds in the genus ''Numenius'', characterised by their long, slender, downcurved bills and mottled brown plumage. The English name is imitative of the Eurasian curlew's call, but may have been i ...
and oystercatchers.
Caerlaverock is also home to the UK's most northerly population of natterjack toads , which live in shallow pools on the landward side of the reserve. SNH estimate that Caerlaverock (and the surrounding areas) may be home to up to 10% of the UK's breeding population.
Carerlaverock NNR is part of the Upper Solway Flats and Marshes, which is a
Ramsar site
A Ramsar site is a wetland site designated to be of international importance under the Ramsar Convention,8 ha (O)
*** Permanent 8 ha (P)
*** Seasonal Intermittent < 8 ha(Ts)
**
protected area
Protected areas or conservation areas are locations which receive protection because of their recognized natural, ecological or cultural values. There are several kinds of protected areas, which vary by level of protection depending on the ena ...
by the International Union for Conservation of Nature. There are other national nature reserves on the other side of the Solway firth, in England.
The reserve was formerly included among UNESCO's Biosphere Reserves. The site was designated in the 1970s, but subsequently the focus of the UNESCO programme shifted from the idea of isolated natural environments to one that allows for the interaction with man in terms of sustainable living and education. After new criteria for biosphere reserves were agreed in 1995, Caelaverock was among four Scottish sites delisted.