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: An ecological study of a Hawaiian mangrove swamp Citation: In: Estuaries, 0. H. Lauff, Ed. (AAAS Publication 83, Washington, DC, 1967), pp. 420-431. Year: 1967 # of species 22 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 20 21 22 1 -1 0 0 0 0 0 0 0 -1 0 -1 0 0 0 0 0 -1 0 -1 0 0 0 2 0 -1 0 0 0 0 0 0 -1 -1 -1 -1 -1 -1 -1 0 -1 0 0 0 -1 -1 3 0 0 -1 0 0 0 0 0 0 0 -1 -1 0 -1 0 0 0 0 0 0 0 0 4 0 0 0 -1 0 0 0 0 0 0 0 -1 -1 -1 -1 0 -1 0 0 0 0 0 5 0 0 0 0 -1 0 0 0 0 0 0 0 0 -1 0 0 0 0 0 0 0 0 6 0 0 0 0 0 -1 0 0 0 0 0 0 0 -1 -1 0 0 0 -1 0 0 0 7 0 0 0 0 0 0 -1 0 0 0 0 0 0 0 0 0 0 0 -1 0 0 0 8 0 0 0 0 0 0 0 -1 0 0 0 0 0 0 0 0 0 0 -1 0 0 0 9 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11 1 1 1 0 0 0 0 0 0 0 0 0 0 -1 -1 -1 0 0 0 0 0 0 12 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 -1 -1 -1 0 0 0 14 0 1 1 1 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 15 0 1 0 1 0 1 0 0 0 0 1 0 0 0 0 0 -1 -1 0 0 0 0 16 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 -1 0 0 17 1 1 0 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 -1 0 0 18 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 19 1 0 0 0 0 1 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 21 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Species# Species 1 detritus 2 diatoms 3 Chlamydomonas 4 Ulothrix 5 nematodes 6 ostracods 7 Melampus parvulus 8 Littornia scabra 9 Tilapia mossambica 10 podophthalums vigil 11 copepods 12 Metopograpsis messor 13 Macrobrachium 14 Oxyurichthyes lonchotus 15 Palaemonetes 16 Kuhlia sandvicensis 17 Charybdis orientalis 18 Scylla serrata 19 Eleotris sandwicensis 20 Conger marginatus 21 Mugil cephalus 22 Chonophorous genivittatus