June 1 - 3 , 1978 - University of Hawaii at Manoa

More documents

Recommendations

Info

HAWAII IBP SYNTHESIS: 6. GENETIC VARIATION AND POPULATION STRUCTURE IN ISLAND SPECIES* Hampton L. Carson Department of Genetics University of Hawaii at Manoa Honolulu, Hawaii 96822 Evolution is an extremely active process on islands, even in highly isolated archipelagos like Hawai'i and Galapagos. Species formation is frequently exuberant and, in many cases, wholly novel adaptations have developed. At first glance, it seems remarkable that this should be true because it is clear that in many relevant instances the lineage which evolves actively in the islands can be traced ultimately to one or only a few continental founder individuals. Even more founder effects appear to occur as new species are formed within an archipelago. On the surface, this appears to be a system which might deplete genetic variability and thus reduce evolutionary potential. Precise data on genetic variation within island species of Drosophila flies have been accumulating now for about 15 years. Modern methods of analysis of genetic variability (biochemical, chromosomal, and polygenic) have been employed to assay genetic variability in various endemic and introduced species. Virtually without excep- tion, these species have local populations which are fully as polymorphic genetically as those of widespread continental species. Accordingly, such populations are highly competent for adaptive evolution. Most island species, however, have small total populations. Thus, even though the local populations may be rich in genetic variability, the total variability sequestered within continental species is certainly much larger, but this does not appear to be a crucial difference. In high-altitude archipelagos like Hawai'i, many factors promote isolation. The serial isolations to which island populations are subjected have a profound effect on their genetic structure. This is true not only for populations between islands (species formation is by interisland founder effects) but also for local populations within an island or even a volcano. As long ago as 1932, Sewall Wright proposed that the condi- tions most favorable for rapid evolutionary change exist within a species which is subdivided into local semi-isolated populations, some of which have quite small effective sizes. Many island species appear to reflect precisely this dispersive type of population structure and this may explain their observed evolutionary momentum. In Addition to IBP support, this work has been supported by grants GB 27586, 29288, and BMS 22532 from the National Science Foundation. Abstract
SOME ASPECTS OF A SHELL DISEASE IN THE HAWAIIAN FRESHWATER SHRIMP, ATYA BISULCATA (RANDALL) John G. Chan Department of Biology University of Hawaii at Hilo Hilo, Hawaii 96720 INTRODUCTION A disease syndrome characterized by dark necrotic areas of the exoskeleton has been reported in a number of aquatic crustaceans (Rosen 1970). The syndrome has been called black spot disease, brown spot disease, rust disease, burnt disease, and shell disease. Shell disease was reported in the American lobster, Homarus americanus, by Hess (1937). The disease in this species was thought to be promoted by crowded condition of the lobster holding pens. Similarly, Alaskan king crabs, Para- lithodes sp., often developed necrotic "rust" spots when h e l d n captivity. The "rust" appeared to be superficial infections occurring most commonly on the ventral body area at natural breaks and abraded surfaces (Bright, Durham, & Knudsen 1960). Rosen (1967) described a necrotic shell disease of American blue crab, Callinectes sapidus, collected from shedding pens in Crisfield Harbor, Maryland. The crabs had been crowded into enclosures until ecdysis yielded the more desirable "soft-shell" crabs. While the shell disease syndrome is most discernible among crustaceans held in captivity, its occurrence has been reported among crustaceans in their nat-ur-a1 .habitat-. More ~ ~ - (1969) ~ -~ reported severely eroded carapaces among blue crabs, - C. sapidus, caught in Galveston Bay, Texas. And recently Iversen and Beardsley (1976) reported shell disease among marine crustaceans of South Florida. They found pitted, darkened carapaces among the commercially important stone crab Menippe mercenaria, and several other species. Shell disease has also been reported in a freshwater prawn, Macrobrachium rosenbergii (Sindermann 1974) and is believed to occur among pond reared specimens in Hawai'i (R. Nakamura, pers. comm. ) . The presence of shell disease in M. rosenbergii is not surprising since Kubota (1972) reported a severe necrotic shell disease in a closely related species, the Tahitian prawn, - M. - lar in Kahana Stream on O'ahu. . , This study describes the shell disease syndrome in the Hawaiian freshwater atyid shrimp, Atya bisulcata, with emphasis on the frequency of occurrence, the nature of the lesion, and its etiology.
Page 1 and 2: COOPERATIVE NATIONAL PARK RESOURCES
Page 3 and 4: PREFACE TABLE OF CONTENTS Apple, Ru
Page 5 and 6: Gon, Samuel M., 111 ALTITUDINAL EFF
Page 7 and 8: Stemmermann, Lani HALEAKALA NATIONA
Page 9 and 10: ROOF RAT DEPREDATIONS ON HIBISCADEL
Page 11 and 12: Feeding upon seed pods Immature see
Page 13 and 14: NENE REINTRODUCTION PROGRAM AND RES
Page 15 and 16: R. C. L. Perkins (1903) also believ
Page 17 and 18: Although Nene in HAVO pens are expo
Page 19 and 20: irds have been forced to mate with
Page 21 and 22: TABLE 1. Individual results of 6nl
Page 23 and 24: TABLE 2. Combined results of NEnS b
Page 25 and 26: therefore be of interest to review
Page 27 and 28: wasp was found to parasitize the la
Page 29 and 30: In line with this thinking, immedia
Page 31 and 32: aIal 5 ." U) 0 a, U u C 0 4 w rlw r
Page 33 and 34: BIOLOGICAL CONTROL OF WILDLAND WEED
Page 35 and 36: 15 species of introduced insects es
Page 37 and 38: HALEAKALA NATIONAL PARK CRATER DIST
Page 39 and 40: areas include the planthoppers (Del
Page 41 and 42: HAWAII IBP SYNTHESIS : 5. SHORT-TER
Page 43 and 44: We in the Forest Service are excite
Page 45 and 46: shrubby Dubautia and numerous hybri
Page 47: TABLE 1. Dubautia and Argyroxiphium
Page 51 and 52: Induction of Lesions To induce lesi
Page 53 and 54: lesions. Or they may be part of the
Page 55 and 56: LITERATURE CITED Akin, D. E., and H
Page 57 and 58: TABLE 3. Isolation of chitinoclasti
Page 59 and 60: FOREST BIRD POPULATIONS ON O'AHU Ma
Page 61 and 62: LEK BEHAVIOR AND ECOLOGY OF TWO HOM
Page 63 and 64: either species) after an encounter
Page 65 and 66: HAWAII IBP SYNTHESIS : 3. THE KILAU
Page 67 and 68: RESULTS AND DISCUSSION Fifteen exot
Page 69 and 70: One exotic bird not found but previ
Page 71 and 72: TABLE 1. A list of the birds in the
Page 73 and 74: TABLE 2. Densities (birds/4O ha) of
Page 75 and 76: FIGURE 1. A map showing the locatio
Page 77 and 78: FIGURE 3. A map showinq native fore
Page 79 and 80: Several patterns in avian distribut
Page 81 and 82: LITERATURE CITED Eden, J. T. 1971.
Page 83 and 84: TABLE 1--Continued . Scientific Nam
Page 85 and 86: The objective of this paper is to a
Page 87 and 88: Selective field hybridizations yiel
Page 89 and 90: Corn, C. A. 1979. Variation in Hawa
Page 91 and 92: POLY MORPHA ---- NO SEED - SEED PRO
Page 93 and 94: THE RARE AND THREATENED PLANTS IN T
Page 95 and 96: open ideas for consideration and to
Page 97 and 98: Presence-absence trait analysis fur
Page 99 and 100:
small clearings of soil-humus depos
Page 101 and 102:
LITERATURE CITED Barrau, J. 1961. S
Page 103 and 104:
WIDTH OF LARGEST WALL (cm) TOTAL AR
Page 105 and 106:
ESTABLISHMENT OF SOME RECENT IMMIGR
Page 107 and 108:
An egg parasite*, Trissolcus sp., w
Page 109 and 110:
caterpillars were found on young nu
Page 111 and 112:
'IRBLE 1. Sunnnq of sm recent imniq
Page 113 and 114:
can be expected to provide will be
Page 115 and 116:
Dombois 1977). Of course the trees
Page 117 and 118:
We see from the two figures that in
Page 119 and 120:
Ole HEALTHY, h FIGURE 1. Probabilit
Page 121 and 122:
EVALUATION OF A NEW TECHNIQUE FOR H
Page 123 and 124:
in the vial cap and was immersed in
Page 125 and 126:
usually requiring only a few minute
Page 127 and 128:
FACTORS CONTROLLING THE DISTRIBUTIO
Page 129 and 130:
With respect to the distribution of
Page 131 and 132:
native rain forest. However, the se
Page 133 and 134:
mites are parasitic forms which hav
Page 135 and 136:
LITERATURE CITED Atyeo, W. T., and
Page 137 and 138:
TABLE 2. Feather mites recovered £
Page 140 and 141:
Hirstionyssidae Rhinonyssidae (Rode
Page 142 and 143:
STUDY SITE The ahupua'a of Manuka,
Page 144 and 145:
DISCUSSION The trend of increasing
Page 146 and 147:
litter habitats at lower and higher
Page 148 and 149:
plant species diversity. The more d
Page 150 and 151:
vegetational situation, and habitat
Page 152 and 153:
TABLE 1. mmber of families encounte
Page 154 and 155:
KEY: Nmhr of families colleded fran
Page 157 and 158:
HALEAKALA NATIONAL PARK CRATER DIST
Page 159 and 160:
Isopterygium Plagiothecium cavifoli
Page 161 and 162:
TABLE 1. Phytogeographic relationsh
Page 163 and 164:
In Hawai'i rain water percolates ra
Page 165 and 166:
Most continental troglobites are co
Page 167 and 168:
(5) Caves are fragile ecosystems an
Page 169 and 170:
the current onslaught. It is true t
Page 171 and 172:
Maciolek, J. A., and R. E. Brock. 1
Page 173 and 174:
In the fallowing paper, a quick sum
Page 175 and 176:
have been identified which include,
Page 177 and 178:
LLTERATURE CITED Htmda, N., and J.
Page 179 and 180:
TABLE 2. Cmpnents for the tree laye
Page 181 and 182:
TABLE 4. Example of a vegetation ty
Page 183 and 184:
ETGLTRE 2. Location of the U. S. Fi
Page 185 and 186:
The sweet potato is unique in that
Page 187 and 188:
tempting to suggest that the introd
Page 189 and 190:
LITERATURE CITED Brand, D. D. 1971.
Page 191 and 192:
DEDICATION ADDRESS FOR HAWAII FIELD
Page 193 and 194:
I want to say that I strongly disag
Page 195 and 196:
We will see how far these ideas get
Page 197 and 198:
While the $28,000 would not even bu
Page 199 and 200:
By no means, however, do I imply th
Page 201 and 202:
Due primarily to lack of personnel
Page 203 and 204:
National Park Service. 1969. Dark-r
Page 205 and 206:
HAWAII IBP SYNTHESIS : 7. IMPACT OF
Page 207 and 208:
Management Techniques The first clu
Page 209 and 210:
!IWLE 1. Summary of production at 6
Page 211 and 212:
PART A: Shipnan Strain Geese (14 Ge
Page 213 and 214:
WLE 4. Gn5 restoration project reco
Page 215 and 216:
HUMAN PERCEPTION OF THE HAWAIIAN EN
Page 217 and 218:
public opinion concerning the issue
Page 219 and 220:
(Question) Variables No Bsponse TAB
Page 221 and 222:
(Question) Variables 10 11 12 13 14
Page 223 and 224:
This is a survey to find out how th
Page 225 and 226:
THE SEPTEMBER 1977 ERUPTION OF KILA
Page 227:
General Conclusions 1. Zonal (or co
Page 230 and 231:
- )RIGIN - TeC - TeL - TrP - 11.000
Page 232 and 233:
A SOIL FUNGUS SET I B C ZONES SET2
Page 234 and 235:
The high tree species diversity of
Page 236 and 237:
It is probable that ecological gene
Page 238 and 239:
THE ROLE OF THE HAWAIIAN TWO-LINED
Page 240 and 241:
HABITAT UTILIZATION AND NICHE COMPO
Page 242 and 243:
Hawaii Field Research Center. The p
Page 244 and 245:
It is understandable that there is
Page 246 and 247:
To accomplish the objectives of the
Page 248 and 249:
FIGURE 1. Map of the island of Hawa
Page 250 and 251:
METHODS Old mamane seed pods were c
Page 252 and 253:
Seedling survival Seedling survival
Page 254 and 255:
TABLE 1. Comparisons of percent see
Page 256 and 257:
254 Figure 2--Cumulative number of
Page 258 and 259:
COMMUNICATIONS TECHNIQUES AND THE S
Page 260 and 261:
In a ten-minute paper like today's,
Page 262 and 263:
ut are now growing in a normal upri
Page 264 and 265:
Table 1--Grafting trials of Acacia
Page 266:
Table 3--Treatments applied to Acac
Page 269 and 270:
Table 5--Clonal variation in rootin
Page 271 and 272:
with the major distribution being i
Page 273 and 274:
as size classes (height and diamete
Page 275 and 276:
there were more available microhabi
Page 277 and 278:
CONCLUSIONS The Devastation Study A
Page 279 and 280:
TABLE 1. Habitat 5. Structure and v
Page 281 and 282:
VBLC 3. Witat 5. Wantitative charac
Page 283 and 284:
HABITAT PROFILE - NOS. 1.2,4,5,6 OF
Page 285 and 286:
HALEAKALA NATIONAL PARKCRATER DISTR
Page 287 and 288:
LITERATURE CITED Bryan, W. A. 1915.
Page 289 and 290:
climates experience alternating per
Page 291 and 292:
correlated with the amount and phys
Page 293 and 294:
HALEAKALA NATIONAL PARK CRATER DIST
Page 295 and 296:
LITERATURE CITED Degener, 0. 1930.
Page 297 and 298:
TABLE 2. Potentially aggressive wee
Page 299 and 300:
- Rubus rosaefolius Sn. 2 !l%e thim
Page 301 and 302:
Land availability is necessary to a
Page 303 and 304:
Conf irmatlon of existing informati
Page 305 and 306:
A NECROPSY PROCEDURE FOR SAMPLING D
Page 307 and 308:
Division, P. 0. Bos 243, Cockeysvil
Page 309 and 310:
Instructions RESULTS The following
Page 311 and 312:
I. External Analysis (Examine bird
Page 313 and 314:
PART I1 (1) Face, legs, or feet: le
Page 315 and 316:
(14) Feather, follicle, or skin par
Page 317 and 318:
Examine a wet smear of intestinal c
Page 319 and 320:
SUMMARY More work needs to be done
Page 321 and 322:
TABLE 1. Summary of diseases in avi
Page 323 and 324:
TABIE l--Continued '. Disease Patho
Page 325 and 326:
TABLE 1--Continued '. Disease Patho
Page 327:
' Information not our own is £ran
Page 330 and 331:
the bare-root system have failed. K
Page 332 and 333:
Results of the efforts on the first
Page 334 and 335:
Areas for these vegetation communit
Page 336 and 337:
FIGURE 1. Courses of the topographi
Page 339 and 340:
2500 mm ---+ MEAN ANNUAL PRECIPITAT
Page 341 and 342:
FOREST BIRD POPULATION VARIATION AS
Page 343 and 344:
SPP . r Pelea sp., and Vaccinium ca
Page 345 and 346:
PREHISTORIC HAWAIIAN BIRDS * Alan C
Page 347 and 348:
List of Participants (Continued) De
Page 349 and 350:
List of Participants (Continued) Ca
show all

June 1 - 3 , 1978 - University of Hawaii at Manoa

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?