|
Date, # of nets |
Location |
Elevation (metres) |
Forest cover |
Species and number |
Comments |
|
Note : All bats are males unless otherwise noted. |
|||||
|
May 20 1 |
Wormhole Cave |
high |
logged |
0 |
|
|
May 26 1 |
Deer Drop forest edge |
high |
clearcut/old growth margin |
0 |
|
|
June 10 1 |
Camp pond |
high |
clearcut/old growth margin |
0 |
|
|
June 12 3 |
Marshswallow, marsh & cave |
mid |
old growth |
1 EPFU |
marsh capture. |
|
June 13 4 |
Marshswallow, marsh & cave |
mid |
old growth |
0 |
|
|
June 15 4 |
Whistling, Fallen Giant, Slot Canyon Caves, slot canyon |
mid |
Whistling is logged; rest are old growth |
0 |
|
|
June 16 1 |
Leiner River |
low |
forested |
0 |
|
|
June 18 3 |
Road end bog |
high |
old growth |
0 |
|
|
July 6 3 |
Camp pond, Orifice of Doom Cave |
high |
old growth /clearcut margin, logged |
0 |
|
|
July 7 2 |
Boneyard Cave littoral margin |
low |
forested |
0 |
|
|
July 8 1 |
Greens |
low |
forested |
1 MYKE |
female, stream estuary. |
|
July 29 3 |
Skypot Cave, pond in dry creek |
high |
logged |
2 MYVO |
large pit - feeding site. |
|
July 30 4 |
Labyrinth, Cathedral, Keyhole Caves |
high |
old growth |
6 MYVO, 2 MYLU, 1 MYKE |
7 at Labyrinth, 2 at Cathedral |
|
July 31 2 |
Wormhole, Marmot Mausoleum Caves |
high |
logged |
3 MYVO, 2 MYLU/YU |
captures at Wormhole only. |
|
Aug 1 3 |
Slot Canyon Cave (2 ent.), Whistling Cave |
mid |
old growth |
2 MYVO, 1 MYKE |
captures at Slot canyon cave only. |
|
Aug 3 4 |
Camp pond, Road end bog, Orifice of Doom Cave |
high |
old growth/ clearcut margin, old growth, logged |
0 |
|
|
Aug 4 4 |
Deer Drop, Fracture Caves |
high |
old growth |
4 MYVO, 3 MYLU |
4 at Deer Drop, 3 at Fracture. 1 MYVO is radio tagged. |
|
Aug 5 3 |
Cave 47H, Drafty Drop Cave |
high |
old growth |
1 MYVO, 1 MYKE |
captures at 47H only. |
|
Aug 6 3 |
Liquid Sky Cave |
low |
old growth |
0 |
|
|
Aug 7 3 |
Calypso Cave, cliff base |
high |
old growth |
2 MYVO |
captures at cave only. |
|
Table 1, continued 1998 BAT CAPTURES |
|||||
|
Date, # of nets |
Location |
Elevation |
Forest cover |
Species and number |
Comments |
|
Aug 10 2 |
Boneyard Cave, littoral margin |
low |
forested |
0 |
|
|
Aug 11 2 |
Knoll Hole, Crab Crevice Caves |
low |
logged |
3 MYKE |
2 female, 1 juvenile male. |
|
Aug 13 3 |
X Cave and environs |
high |
logged |
1 MYVO, 1 MYKE |
deep pit cave. |
|
Sept 1 3 |
Waymore, Moldy Hole Caves and pond |
high |
old growth |
1 MYKE |
capture at Waymore cave. |
|
Sept 2 4
|
Labyrinth, Cathedral Caves |
high |
old growth |
9 MYVO, 7 MYLU, 3 MYKE, 1 MYLU/YU, 1 MYYU |
50% caught at each cave. 4 juveniles, one is female MYKE. 2 females total. 4 MYVO wing punches taken. |
|
Sept 3 4 |
Slot Canyon Cave (2 ent.), Whistling Cave, lower entrance |
mid |
old growth, logged (Whistling) |
3 MYKE, 1 MYVO |
none at Whistling. 1 MYKE voucher specimen taken. |
|
Sept 4 4 |
Knoll Hole Cave, Leiner River estuary |
low |
old logging, regrown |
0 |
many bats heard feeding over estuary. full moon. |
|
Sept 8 3 |
Ursa Major Cave |
high |
old growth |
0 |
clearing after rains. some calls heard. |
|
Sept 10 2 |
Headwall Cave (upper ent.), Fallen Giant Cave (lower ent.) |
mid |
old growth |
0 |
F. G. net was inside lower entrance. rain during session. |
|
Sept 11 3 |
Deer Drop, Fracture Caves, Cave 47I |
high |
old growth |
3 MYLU, 1 MYYU, 1 MYVO |
3 at Deer Drop, 1 at Fracture, 1 at 47I. |
|
Sept 13 3 |
Boggle Cave |
high |
old growth |
1 MYVO, 1 MYLU/YU |
MYVO is radio-tagged. |
|
Oct 10 3 |
Deer Drop, Fracture Caves |
high |
old growth |
0 |
no calls heard. |
|
NET NIGHTS: Early summer (May 20-July 8) - 20, Late summer (July 29-Sept 13) - 63 |
|||||
Table 2
CAPTURE SUMMARY 1998
|
category |
net nights |
captures |
capture ratio |
|
caves - mid to high, early summer |
7 |
0 |
0 |
|
surface - mid to high, early summer |
13 |
1 |
0.077 |
|
caves - low, early summer |
1 |
0 |
0 |
|
surface - low, early summer |
3 |
1 |
0.333 |
|
caves - mid to high, late summer |
43 |
65 |
1.512 |
|
surface - mid to high, late summer |
8 |
0 |
0 |
|
caves - low, late summer |
8 |
3 |
.375 |
|
surface - low, late summer |
3 |
0 |
0 |
|
TOTALS |
86 |
70 |
0.814 (average) |
Table 3
BONES COLLECTED FROM STUDY AREA CAVES 1995-1998
|
Cave |
Elevation |
Order |
Species |
RBCM# |
Specimen |
Age |
Location |
Collector |
Year |
Remarks |
|
SkyPot |
693 |
Artiodactyla |
Odocoileus hemionus |
19508 |
antler fragment |
subfossil? |
sp50 |
Martin Davis |
1995 |
|
|
Labyrinth |
939 |
Chiroptera |
Myotis keenii |
19507 |
skull, skeleton |
recent, fur present |
LA14 |
Martin Davis |
1995 |
|
|
Plume |
905 |
Chiroptera |
Myotis lucifugus |
19501 |
skull |
subfossil? |
pl19 |
Martin Davis |
1995 |
|
|
Plume |
905 |
Galliformes |
Dendragapus obscurus |
skeleton |
subfossil? |
pl11 |
Scott Mcnab |
1995 |
complete skeleton in cave? |
|
|
Plume |
905 |
Insectivora |
Sorex vagrans/monticolus |
19505 |
skull |
subfossil? |
pl11 |
Martin Davis |
1995 |
|
|
Marmot Mausoleum |
822 |
Rodentia |
Marmota vancouverensis |
19513 |
skull, skeleton |
subfossil |
mm10 |
Martin Davis |
1995 |
complete skeleton in cave |
|
Plume |
905 |
Rodentia |
Marmota vancouverensis |
19504 |
tips of upper incisors |
subfossil? |
pl20 |
Martin Davis |
1995 |
|
|
Plume |
905 |
Rodentia |
Microtus townsendii |
19502 |
skull |
subfossil? |
pl11 |
Martin Davis |
1995 |
|
|
Plume |
905 |
Rodentia |
Peromyscus sp? |
19503 |
skull, right mandible |
subfossil? |
pl11 |
Martin Davis |
1995 |
|
|
Plume |
905 |
Rodentia |
Peromyscus sp? |
19506 |
skull, mandibles |
subfossil? |
pl11 |
Martin Davis |
1995 |
|
|
Wormhole |
812 |
Carnivora |
Ursus sp? |
19512 |
phalanx, carpus? |
subfossil |
55-A |
Martin Davis |
1996 |
complete skeleton in cave |
|
Deer Drop |
825 |
Chiroptera |
Myotis lucifugus |
19509 |
skull |
recent |
44A20 |
Martin Davis |
1996 |
5 skulls on ledge |
|
Deer Drop |
825 |
Chiroptera |
Myotis lucifugus |
19510 |
skull |
recent |
44A20 |
Martin Davis |
1996 |
5 skulls on ledge |
|
Deer Drop |
825 |
Chiroptera |
Myotis lucifugus |
19551 |
skeleton |
recent, fur present |
44A30 |
Martin Davis |
1996 |
|
|
Keyhole |
899 |
Chiroptera |
Myotis yumanensis |
19511 |
skull |
recent, fur present |
K-21 |
Martin Davis |
1996 |
|
|
Labyrinth |
939 |
Chiroptera |
Myotis keenii |
19500 |
skull, skeleton |
recent, fur present |
beyond LA47d |
Martin Davis |
1996 |
found dead |
|
Wormhole |
812 |
Chiroptera |
Myotis yumanensis |
19514 |
skull, skeleton |
recent |
wm46 |
Martin Davis |
1996 |
dead bat |
|
Keyhole |
899 |
Chiroptera |
Myotis yumanensis |
19797 |
skull |
Recent |
K-B-3 |
Martin Davis |
1997 |
|
|
Labyrinth |
939 |
Chiroptera |
Myotis lucifugus |
19794 |
skull |
Recent |
Martin Davis |
1997 |
||
|
Labyrinth |
939 |
Chiroptera |
Myotis yumanensis |
19795 |
skull |
Recent |
Martin Davis |
1997 |
||
|
Wormhole |
812 |
Chiroptera |
Myotis yumanensis |
19799 |
skull |
Recent |
Wm 80aa |
Martin Davis |
1997 |
|
|
Labyrinth |
939 |
Insectivora |
Sorex monticolus |
19796 |
skull; mandible |
Recent |
Martin Davis |
1997 |
||
|
Wormhole |
812 |
Rodentia |
Peromyscus sp. |
19798 |
partial skull |
Recent |
Wm 80aa |
Martin Davis |
1997 |
|
|
? |
? |
Artiodactyla |
Odocoileus hemionus |
19989 |
right dentary |
Recent? |
Martin Davis |
1998 |
very young animal |
|
|
Calypso |
855 |
Chiroptera |
Myotis lucifugus |
19987 |
skull |
Recent |
Martin Davis |
1998 |
||
|
Liquid Sky |
400 |
Chiroptera |
Myotis sp. |
19988 |
skull |
Recent |
Martin Davis |
1998 |
||
|
Ursa major |
900 |
Chiroptera |
Myotis volans |
19986 |
skull, mandibles |
Recent |
Martin Davis |
1998 |
||
|
Wormhole |
812 |
Chiroptera |
Myotis evotis? |
19984 |
skull |
Recent |
Martin Davis |
1998 |
M. keenii/evotis probably evotis |
|
|
Wormhole |
812 |
Chiroptera |
Myotis yumanensis |
19985 |
skull |
Recent |
Martin Davis |
1998 |
||
|
Ursa major |
900 |
Rodentia |
Marmota vancouverensis |
19990 |
skull fragment |
fossil? |
Martin Davis |
1998 |
milk teeth, very young |
Return to - Island Karst Research - Bat Study Update 1998