Page 137 - Atlas Sea Birds Ver1
P. 137

Papendorp saltworks                               formerly used for  guano collection, were expanded  and
                  Coordinates: 31.6988 S, 18.2077 E                 transformed into a visitor centre and new buildings, includ-
                  Description: The saltworks are located south of and ad-   ing a viewing hide, were erected at the island.
                  jacent to the Olifants River near its mouth and fall within   Breeding flats at the centre of the island were reported
                  the Olifants River Estuary IBA (Marnewick et al. 2015). The   to be covered by penguins in the early 1900s (Shelton et al.
                  estuary is used by Great White Pelicans (Pelecanus ono-   1984). Penguins also bred under boulders and occasion-
                  crotalus) that breed at Dassen Island in their non-breeding   ally nested on the mainland opposite the island (Shelton
                  season and by Caspian  Terns.  It  also holds threatened   et al. 1984). In the early 20th century gannets occupied
                  species such as Lesser Flamingo (Phoeniconaias minor),   the central flats, parts of which were then paved to facili-
                  Greater Flamingo (Phoenicopterus roseus), African Marsh   tate guano collection. The nesting distributions of the dif-
                  Harrier (Circus ranivorus), Black Harrier (C. maurus), a pair   ferent seabird species c. 1970 were mapped by Jarvis and
                  of which breeds regularly at the estuary, and African Black   Cram (1971). At that time the western side of the gannet
                  Oystercatcher (Haematopus  moquini) (Marnewick  et  al.  colony was protected by a low sea-defence wall (Jarvis and
                  2015).                                            Cram 1971), but this later broke up and heavy seas have
                  Conservation status:  The saltworks are not protected.   since sometimes shifted deposits of mussel shells up the
                  Species and  numbers breeding:  Numbers  of pairs  of   shoreline into the perimeter of the gannet breeding area.
                  Hartlaub’s Gull to have bred at the site in different years   Cape and Crowned cormorants nested on flat and rocky
                  are shown on the following table.                 ground at the island, on disused boats in the harbour and
                                                                    on roofs of nearby buildings. In the 2010s, Crowned Cor-
                       Year               Hartlaub's Gull           morants also nested on pine trees in Lambert’s Bay town.
                                                                    Bank and White-breasted cormorants usually bred on high
                      1970                     8                    rocks and the gulls and terns on the ground, although Kelp
                      1995                     8                    Gulls also used roofs. Cape, White-breasted and Crowned
                      2022                     0                    cormorants nested on wooden bars attached to poles to
                                                                    provide extra nesting space.
                  Cliff north of Doringbaai (s Strandfontein)         A consequence of the causeway was that a number of
                  Coordinates: 31.7869 S, 18.2314 E                 alien plants and a lesser number of alien animals became
                  Description: A sea cliff north of Doringbaai having a cave   established at, or accessed, the island (Saul and Fortuin
                  that provides  safe nesting places for a few cormorants.   2015). Interlopers included Water Mongoose (Atilax palu-
                  Conservation status: It is not protected.         dinosus), which occupied the island for a short period of
                  Species and numbers breeding: Cape and White-breast-   time and fed on bird eggs before being removed. Feral cats
                  ed cormorants bred at the cliff. Numbers of pairs recorded   (Felis catus) also resided on the island.
                  to have done so are shown on the following table.   There were five records of Australasian Gannet (Morus
                                                                    serrator) at Bird Island, Lambert’s Bay, between 1982 and
                                                 White-breasted     2010 (Dyer 1990, Dyer et al. 2001, BMD unpubl.).
                      Year     Cape Cormorant                         Seabird guano was collected at the island in 91 years
                                                   Cormorant
                                                                    between 1897 and 1991, the total quantity removed from
                      1980           4                 0            the island in that time being 20,708 metric tons (Tom et al.
                      2015           0                 7            2024).
                                                                      Between 1871 and 1905 at least 73,600 African Penguin
                  Source: 1980 (Cooper et al. 1982, LG Underhill  in litt.);  eggs (data were  unavailable  for 17 years of this period)
                  2015 (DFFE unpublished record)                    were  collected  at  the island  (Makhado  et  al. 2024).
                  Note: White-breasted Cormorants bred at the site in the  Conservation status:  Lambert’s Bay Penguin  Island
                  1950s (Winterbottom 1957).                        Nature Reserve was established as a Provincial  Nature
                                                                    Reserve in terms of Section 6 of the Nature Conservation
                  Penguin (Bird) Island, Lambert’s Bay              Ordinance  (Ordinance  19 of  1974) and proclaimed  as
                  Coordinates: 32.0899 S, 18.3029 E                 such by Proclamation No. 23/1988 on 9 March 1988 in the
                  Description: It is a coastal island having an area of about  Provincial Gazette of 18 March 1988. It is administered by
                  3.2 ha and rising to 7 m above sea level. It is mostly rocky   the Western Cape Nature Conservation Board (CN).
                  and has sparse vegetation  that includes  some Malva   Species and numbers breeding: Ten species of seabird
                  bushes (Rand 1963). It lies at the west of Lambert’s Bay   have bred at Lambert’s Bay. Numbers estimated to have
                  harbour. A concrete  harbour wall was built on the  south-   done  so  in  different  years  are  shown  on  the  following
                  ern side of the island in 1957. A second harbour wall was   Table 1 applicable to Penguin Island, Lambert’s Bay.
                  constructed north of the island in the early 1960s. A map of   In the early 1900s the African Penguin population was
                  the island at this stage of its development is given in Rand   estimated  to be at least 2,700  birds  (Frost et al. 1976).
                  (1963). Several navigational structures, including beacons,   There were about 250 pairs of African Penguin at the island
                  were  placed  at the island.  Subsequent  constructions  in-   in 1956 (Rand 1963) but only c. 50 pairs in 1979 (Shelton
                  cluded joining the island with the mainland in the south via   et  al. 1984)  and  the colony  became  extinct in 2006
                  a causeway c. 1959 (Jarvis and Cram 1971). Other har-   (Crawford et al. 2011).
                  bour improvements were the construction of several rock   No Cape Gannets bred at the island in the early 1900s
                  and concrete retaining walls along the eastern side of the   (Crawford et  al. 1983).  The earliest record of  gannets
                  island. Sand dredged from the harbour was pumped in be-   breeding at the island was of one or two pairs in 1912 (Jar-
                  hind these walls to increase the island’s surface area (Saul   vis 1971). In 1956, about 5,700 pairs bred at the island.
                  and Fortuin 2015). Old buildings at the island, which were   From 1986–2003 numbers often exceeded 10,000 pairs,


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