Annals of the South African Museum, Volume 90The Museum, 1982 - Natural history |
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Page 51
... individual longevity is 9 years . Age ( x ) ( years ) Number of live individuals Number of dead individuals ( dx ) Rate of mortality % ( qx ) 500 400 ( lx ) 0-1 500 250 50 1-2 250 25 10 2-3 225 22 10 3-4 203 20 10 4-5 183 37 20 5-6 146 ...
... individual longevity is 9 years . Age ( x ) ( years ) Number of live individuals Number of dead individuals ( dx ) Rate of mortality % ( qx ) 500 400 ( lx ) 0-1 500 250 50 1-2 250 25 10 2-3 225 22 10 3-4 203 20 10 4-5 183 37 20 5-6 146 ...
Page 53
... individual longevity is 9 years . Age ( x ) ( years ) Number of live individuals ( lx ) Number of dead individuals ( dx ) Rate of mortality % ( qx ) 0-1 1.000 700 70 1-2 300 150 50 2-3 150 75 50 3-4 75 30 40 4-5 45 9 20 5-6 36 6-7 29 7 ...
... individual longevity is 9 years . Age ( x ) ( years ) Number of live individuals ( lx ) Number of dead individuals ( dx ) Rate of mortality % ( qx ) 0-1 1.000 700 70 1-2 300 150 50 2-3 150 75 50 3-4 75 30 40 4-5 45 9 20 5-6 36 6-7 29 7 ...
Page 54
... individuals who die each year will be quite similar in shape to the age profile of those who remain alive ... individuals born at more or less the same time ; second , a census may be conducted of all those individuals alive at any one ...
... individuals who die each year will be quite similar in shape to the age profile of those who remain alive ... individuals born at more or less the same time ; second , a census may be conducted of all those individuals alive at any one ...
Contents
figures and 1 table | 2 |
Systematic discussion | 41 |
Synopsis of the Afrotropical genera of Philosciidae | 47 |
Copyright | |
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Common terms and phrases
age classes age profiles Agulhas Bank Antenna Antennular Antennule Apanthura apex attritional b/c and d/c Barnard basal bipunctatum body chamber Budde-Lund Cape Town capensis carpus cephalon Chrysomya coiling Collignon Coniacian croceipalpis crown height Crustacea d/c co-ordinates Damalacra Diagnosis diameter DIEGO distal dorsal view Elandsfontein endite endopod endopodite Exiteloceras False Bay female Figure flagellum Forresteria Forresteria fossil genera genus Haliophasma hirsuta Hoepen Holotype individuals Isopoda Kensley Langebaanweg lateral tubercles Leptanthura lifespan lobe Malacanthura male Mandible margin Maxilliped mid-dorsal mortality profiles Nahia Natal Natalscia Neancyloceras noduli laterales non-ovig Nyanzachoerus outer ovig paratypes Pelorovis pereon segment pereonites Pereopods 4-7 Philoscia Pleon Pleopod Pleopod 1 exopodite population posterior propodal palm Raphicerus ribs rounded Saldanha Bay samples Schlüter setae Setaphora South African Museum specimens spines spiracles Taiti & Ferrara Telson Transkei triangular Type material Holotype type species ungulate Uropodal Uropodal exopod ventral whorl Yabeiceras Zululand