Food Web Database

The food webs are based on published studies of various types of habitat. The original food web matrix is not a square matrix.  It contains m columns of predators and n rows of preys with a 1 at the intersection to indicate a direct feeding relation. We converted the original food web matrix into a community matrix and set a_ij = -1 and a_ji = 1 if species i feeds on species j. You can decide if a self-loop is added to each species or to the primary producer.

Web Number:
1 ,	2 ,	3 ,	4 ,	5 ,	6 ,	7 ,	8 ,	9 ,	10 ,	11 ,	12 ,	13 ,	14 ,	15 ,
16 ,	17 ,	18 ,	19 ,	20 ,	21 ,	22 ,	23 ,	24 ,	25 ,	26 ,	27 ,	28 ,	29 ,	30 ,
31 ,	32 ,	33 ,	34 ,	35 ,	36 ,	37 ,	38 ,	39 ,	40 ,	41 ,	42 ,	43 ,	44 ,	45 ,
46 ,	47 ,	48 ,	49 ,	50 ,	51 ,	52 ,	53 ,	54 ,	55 ,	56 ,	57 ,	58 ,	59 ,	60 ,
61 ,	62 ,	63 ,	64 ,	65 ,	66 ,	67 ,	68 ,	69 ,	70 ,	71 ,	72 ,	73 ,	74 ,	75 ,
76 ,	77 ,	78 ,	79 ,	80 ,	81 ,	82 ,	83 ,	84 ,	85 ,	86 ,	87 ,	88 ,	89 ,	90 ,
91 ,	92 ,	93 ,	94 ,	95 ,	96 ,	97 ,	98 ,	99 ,	100 ,	101 ,	102 ,	103 ,	104 ,	105 ,
106 ,	107 ,	108 ,	109 ,	110 ,	111 ,	112 ,	113 ,

Title: Antarctic marine ecosystems Citation: Antarctic Ecology, M. W. Hoidgate, Ed. (Academic Press, New York, 1970) 1:69-96. Year: 1970 # of species 19 Add self-loop to only primary producers Add self-loop to all species Community Matrix:   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1 -1 0 0 -1 -1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 -1 0 0 0 -1 -1 -1 0 0 0 0 0 0 0 0 0 0 0 3 0 0 -1 0 0 0 0 -1 0 0 0 0 0 0 0 0 0 0 0 4 1 0 0 0 -1 0 0 0 -1 0 0 0 0 0 0 0 0 0 0 5 1 0 0 1 0 1 0 0 0 -1 0 0 0 0 0 0 0 0 0 6 0 1 0 0 -1 0 0 -1 0 -1 -1 0 0 0 0 0 0 0 0 7 0 1 0 0 0 0 0 0 -1 0 -1 -1 -1 0 0 -1 0 -1 0 8 0 1 1 0 0 1 0 0 0 0 0 0 0 -1 0 0 0 0 -1 9 0 0 0 1 0 0 1 0 0 0 0 0 0 0 -1 -1 0 0 0 10 0 0 0 0 1 1 0 0 0 0 -1 0 0 0 0 0 0 0 0 11 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 -1 0 0 12 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 13 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 -1 -1 0 14 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 -1 15 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 -1 0 -1 0 16 0 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 0 0 0 17 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 18 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 19 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 Species# Species 1 epontic microalgae 2 planktonic microalgae 3 detritus 4 copepods, Orchomonoposis 5 bottom notothenids, fry of trematormus 6 phytoplankton filter feeders 7 Euphausia superba, E. cystallorophias 8 benthic filter feeding invertebrates 9 trematomus borchgrevinki, Pleuogramma antarctica 10 predatory planktonic invertebrates 11 predatory cephalopods 12 whales, crabeater seals 13 penguins, petrels 14 pycnogonids, polychaetes, Glyptonotus, Lineus, Odonaster 15 predatory fishes 16 Weddell seals 17 toothed whales 18 leopard seals 19 predatory benthic fishes