- 51 - COOK ISLANDS WJDSCAPE Edwin Doran Jr. The Southern Cook Islands are intermediate in character between the large, high, and rainy F i j i and Solomon Islands and the tiny, low, and sparse atolls of the Gilberts and Marshalls (Fig. 12). The areas of Aitutaki and Rarotonga, f o r example, are respectively 6 and 26 square miles. I f the en t i r e group is considered we f ind an interest ing t rans i - t i on vhich not only presents a miniature cross-section of the types of topography to be found i n the Pacific but as well i l l u s t r a t e s the sequence of configurations to be expected w i t h the Darwinian hypothesis of a t o l l formation t h u g h subsidence. On the south Rarotonga consists consists pr incipal ly of a !rB.Ssi~e core of igneous rock surrounded by a narrow fringing reef of coral (pig. 13). This intensively dissected volcanic remnvlt extends upward i n jag- ged ridges and spires t o elevations over 2000 fee t , the whole engirdled by a narrow coastal plain and reef. Aitutaki represents a second stage in which the o l d volcano has subsided while cora l has grown up and out to form a ba r r i e r reef encircling a lagoon (Fig. 14). The maximum e l e - vation is a modest 450 feet , and the rounded sunmit with i ts thick cover of reddish s o i l bears witness t o a long period of weathering and denuda- t ion. The t h i r d stage, with the presumed volcanic core long vanished below the sea, i s shown by Tongareva, a typical a t o l l (Fig. 15). A l l t h a t remains is a th in annulus between lagoon and ocean. Although va r i ab i l i t y i n the 60 inches of precipi ta t ion averaged a t Aitutaki occasionally produces drought years with a s few as 30 inches the general aspect is one of adequate rain; Rarotonga does not vary markedly from its annual average of about 80 inches. Totals greater than these - 52 - are t o be found in the Northern Gilberts and Southern Marshdls, but the means fo r those groups taken together are not only lower but much more variable as well. The high Melanesian islands, on the contrary, average considerably more. Vegetation i n the Cook Islands, i n terms of luxuriance and number of species, also f a l l s in to an intermediate position. The crude population density of the Cook Islands, 85 persons per square mile, may be contrasted with f igmes well in to the hundreds on the atolls and below 50 for the large islands. Although this density gives r i s e t o some pressure it i s not extreme, and people support them- selves rather comfortably by an economy based on subsistence f ishing and agriculture. The coconuts found everywhere along coastl ines are u t i l i z e d by all, from dignified vil lage leaders t o t ruants evading school. As through most of the Pacific ta ro is a s taple which may be varied when bre-it is in season. The physical environment, then, i s one which has offered optimum conditions fo r development of a typica l Polynesian culture. One br ie f comparative note on the inter-relationships between phys- i c a l landscape and population density may be cited. Where population pressures e x i s t and where the landscape changes i n character a s one passes from fr inging reef in to the land t o e i the r in t e r io r lagoon or mountains islanders recognize the necessity of dis t r ibut ing the land i n Such fashion t h a t all persons have access to all types of terrain. The radial pattern of land-holdings from the island center r e su l t s from t h i s recognition. The pie-shaped tapere of Rarotonga and the c ross- i s le t weye of the Marfiha1l.s mu: certainly mal~oua shapes. They document m implieit recngnition on the part of both Marshall Islanders and Cook - 5 3 - Islanders of a controll ing geomtry within trlflich t h e i r respective land tenure patterns had to be developed. No such control obtains i n the Solornons where the larger l imi t s of landholdings are only roughly dicta- ted by topography and the small square o r rectangular p lo ts under c u l t i - vation have l i t t l e re lat ion t o the major aspects of is land form. ,% Ai tu tok i p H e r v e y T o k a t e o g Q A t i u 1 M i t i a r o 2 0 ~ o u k e 0 0 M o n g o i o 2 2 C O O K I S L A N D S R A R O T O N G A A I T U T A K I TONG