commercial collection & pit fall trap updates€¦ · century wunderkammern – cabinet of...
TRANSCRIPT
& Pit Fall Trap Updates Commercial Collection
Jason L. Jones Herpetologist 23 June 2017 Commission Update
Everyone collects…
Everyone collects…
Some collections require permits… Some are illegal.
16-17th Century Wunderkammern – Cabinet of Curiosities
21st Century Wunderkammern – Cabinet of Curiosities
21st Century Wunderkammern – Cabinet of Curiosities
U.S. Reptile Stats (2009) 4.7 million households owned 13.6 million pet reptiles (1/20 houses had ~3 reptiles) vs. 37,397 hunters/anglers (1/2.5m) $1.4 billion annual revenues for U.S. reptile industry. 11.3 million live reptiles were exported from the United States. 900,000 live reptiles were imported into the United States. U.S. businesses dominate the global reptile industry. Wildlife smuggling (2nd only to drugs) accounts for $8 - $10 billion in sales. Reptiles are arguably the most trafficked live animals.
(Collins & Fenili 2011, USDI 2011)
$2,000+
Rare reptiles more profitable than heroin. – J. O’Kane
Physiology (“cold blooded” [no metabolic heat]) + Lack of international, federal, & state enforcement
But… Illegal take methods* Species origin falsified*
Species mislabeled “Captive Bred” misused
(Herrel & Meijden 2014)
*
*
(Herrel & Meijden 2014)
*
*
Top 15 Reptiles (non turtle) - 154,343/year
(Herrel & Meijden 2014)
Top 15 Reptiles (*introduced/non-native)
Export of U.S. (NV) Reptiles Year
Reptiles* Exported
NV Reptiles Collected
NV - US Exports?
2005 111,463 2006 161,147 2007 208,407 2008 139,649 2009 125,400 2010 25,652 Total 771,717
*Non-turtle/Top15
(Collins & Fenili 2011 Herrel & Meijden 2014)
Export of U.S. (NV) Reptiles Year
Reptiles* Exported
NV Reptiles Collected
NV - US Exports?
2005 111,463 20,173 18% 2006 161,147 15,636 10% 2007 208,407 13,012 6% 2008 139,649 15,806 11% 2009 125,400 14,988 12% 2010 25,652 13,081 51% Total 771,717 92,696 12%
*Non-turtle/Top15
(Collins & Fenili 2011 Herrel & Meijden 2014)
Nevada Reptiles for Sale in the US
2015 (#) Species EU ($) US ($) Total EU ($) Total US ($) 2,347 Horned Lizards 1,150 Leopard Lizard 1,118 Collared Lizard 411 Zebra-tailed Lizard 222 Desert Spiny Lizard 212 Chuckwalla 170 Side blotched 159 Fence Lizard (2spp*) 58 Whiptails 21 Gopher Snakes 15 Banded Gecko 11 Shovel-nosed Snake 7 Red Racer 6 Desert Iguana 4 Patch-nosed Snake
A Year in A Life of 1 Collector
PET TRADE REVENUE: ? (EU) or ? (US)
2015 (#) Species EU ($) US ($) Total EU ($) Total US ($) 2,347 Horned Lizards $110.00 $39.99 1,150 Leopard Lizard $77.53 $23.99 1,118 Collared Lizard $195.00 $39.99 411 Zebra-tailed Lizard $43.00 $14.99 222 Desert Spiny Lizard $64.63 $20.00 212 Chuckwalla $250.00 $109.99 170 Side blotched $41.98 $12.99 159 Fence Lizard (2spp*) $38.78 $12.00 58 Whiptails $51.67 $15.99 21 Gopher Snakes $380.00 $99.99 15 Banded Gecko $96.95 $30.00 11 Shovel-nosed Snake $96.91 $29.99 7 Red Racer $64.63 $20.00 6 Desert Iguana $141.00 $49.99 4 Patch-nosed Snake $80.79 $25.00
A Year in A Life of 1 Collector
PET TRADE REVENUE: ? (EU) or ? (US)
2015 (#) Species EU ($) US ($) Total EU ($) Total US ($) 2,347 Horned Lizards $110.00 $39.99 $258,170 $93,857 1,150 Leopard Lizard $77.53 $23.99 $89,154 $27,589 1,118 Collared Lizard $195.00 $39.99 $218,010 $44,709 411 Zebra-tailed Lizard $43.00 $14.99 $17,673 $6,161 222 Desert Spiny Lizard $64.63 $20.00 $14,348 $4,440 212 Chuckwalla $250.00 $109.99 $44,520 $23,318 170 Side blotched $41.98 $12.99 $7,136 $2,208 159 Fence Lizard (2spp*) $38.78 $12.00 $6,166 $1,908 58 Whiptails $51.67 $15.99 $2,997 $927 21 Gopher Snakes $380.00 $99.99 $7,980 $2,100 15 Banded Gecko $96.95 $30.00 $1,454 $450 11 Shovel-nosed Snake $96.91 $29.99 $1,066 $330 7 Red Racer $64.63 $20.00 $452 $140 6 Desert Iguana $141.00 $49.99 $846 $300 4 Patch-nosed Snake $80.79 $25.00 $323 $100
A Year in A Life of 1 Collector
PET TRADE REVENUE: $670,296 (EU) or $208,536 (USA)
2015 (#) Species EU ($) US ($) Total EU ($) Total US ($) 2,347 Horned Lizards $110.00 $39.99 $258,170 $93,857 1,150 Leopard Lizard $77.53 $23.99 $89,154 $27,589 1,118 Collared Lizard $195.00 $39.99 $218,010 $44,709 411 Zebra-tailed Lizard $43.00 $14.99 $17,673 $6,161 222 Desert Spiny Lizard $64.63 $20.00 $14,348 $4,440 212 Chuckwalla $250.00 $109.99 $44,520 $23,318 170 Side blotched $41.98 $12.99 $7,136 $2,208 159 Fence Lizard (2spp*) $38.78 $12.00 $6,166 $1,908 58 Whiptails $51.67 $15.99 $2,997 $927 21 Gophersnakes $380.00 $99.99 $7,980 $2,100 15 Banded Gecko $96.95 $30.00 $1,454 $450 11 Shovel-nosed Snake $96.91 $29.99 $1,066 $330 7 Red Racer $64.63 $20.00 $452 $140 6 Desert Iguana $141.00 $49.99 $846 $300 4 Patch-nosed Snake $80.79 $25.00 $323 $100
A Year in A Life of 1 Collector
PET TRADE REVENUE: $670,296 (EU) or $208,536 (USA)
Equivalent of Big Game Biomass?
2015 (#) Species EU ($) US ($) Total EU ($) Total US ($) 2,347 Horned Lizards $110.00 $39.99 $258,170 $93,857 1,150 Leopard Lizard $77.53 $23.99 $89,154 $27,589 1,118 Collared Lizard $195.00 $39.99 $218,010 $44,709 411 Zebra-tailed Lizard $43.00 $14.99 $17,673 $6,161 222 Desert Spiny Lizard $64.63 $20.00 $14,348 $4,440 212 Chuckwalla $250.00 $109.99 $44,520 $23,318 170 Side blotched $41.98 $12.99 $7,136 $2,208 159 Fence Lizard (2spp*) $38.78 $12.00 $6,166 $1,908 58 Whiptails $51.67 $15.99 $2,997 $927 21 Gophersnakes $380.00 $99.99 $7,980 $2,100 15 Banded Gecko $96.95 $30.00 $1,454 $450 11 Shovel-nosed Snake $96.91 $29.99 $1,066 $330 7 Red Racer $64.63 $20.00 $452 $140 6 Desert Iguana $141.00 $49.99 $846 $300 4 Patch-nosed Snake $80.79 $25.00 $323 $100
A Year in A Life of 1 Collector
PET TRADE REVENUE: $670,296 (EU) or $208,536 (USA)
Total Reptile Mass = 7.6 Male Big Horn Sheep (200lbs)
Total Reptile Mass = 7.6 Male Big Horn Sheep (200lbs)
Why?
Great Basin
Mojave
High SW Desert Spp. Endemism
(Stebbins 2003)
Relatively High Species Diversity
(Stebbins 2003)
53 spp.
Commercial (Regs)
Greatest
Low
Mod-High
Moderate
Only Western State Allowing Commercial Collection
(Stebbins 2003, Nanjappa & Conrad 2011)
Unique/Novel Species (can’t get them anywhere else)
+ High Diversity
+ Unlimited Take
1,000+ Out of State Points Not Depicted
Commercial Collection
0
5000
10000
15000
20000
25000
30000
35000
PET TRADE REVENUE: $10,511,548
Commercial Collection <450,000 reptiles self-reported to have been removed from landscape ~14,000 Reptiles Annually Removed
0
5000
10000
15000
20000
25000
30000
35000 31,803
Commercial Collection <450,000 reptiles self-reported to have been removed from landscape ~14,000 Reptiles Annually Removed
Commission & Courts
Commission Review
0
5000
10000
15000
20000
25000
30000
35000
Select Spp.
31,803
0
5000
10000
15000
20000
25000
30000
35000
Why The Decline?
Reptiles Collected (N = 104 - 3,180) Collectors (N = 2 - 31)
0
5000
10000
15000
20000
25000
30000
35000
288 308 8,028 760 1,559
0
5000
10000
15000
20000
25000
30000
350005 7 55 22 25
288 308 8,028 760 1,559
Herbivore/Saxicolous Annual recruitment 20% 15y Life Span 8.2y Generation 2-3y Maturity
Collected - 15,945
+5
-9
Chuckwalla (Sauromalus ater)
92 in 1 day
(Berry 1974)
Removal surveys found chuckwalla populations are slow to recover (small clutches, long lived, little/no migration, habitat specialists). These factors contribute to a population crash post removal.
(Brodie et al. 2003)
Collected - 105,093 Ant Specialist* Delayed Reproduction 8y Life Span 4y Generation 2y Maturity
+5
-7 Desert Horned Lizard (Phrynosoma platyrhinos)
>600 in 1 day
Collected - 105,093 Ant Specialist* Delayed Reproduction 8y Life Span 4y Generation 2y Maturity
+5
-7 Desert Horned Lizard (Phrynosoma platyrhinos)
>600 in 1 day
Top 8 NV Reptiles (5 SOCP) Average +5 and -8
Ivanpah-Pahrump Valleys
Amargosa Valley
Days Days
Reptiles/Day
Total Take
Reptiles/Day
Total Take
Amargosa Valley
Amargosa Valley
Days
Reptiles/Day
Total Take
0
5000
10000
15000
20000
25000
30000
35000
31,830
1994 2001 2009 2016
21,262
14.998
7,102
700+ Exist in SoNV
368 (307) Traps Checked 2016-17
197 Reptiles observed - 64% traps contained reptiles 96 mammals observed - 31% contained mammals 99 Scorpions observed - *69% contained scorpions
368 (307) Traps Checked 2016-17
197 Reptiles observed - 64% traps contained reptiles 96 mammals observed - 31% contained mammals 99 Scorpions observed - *69% contained scorpions
368 (307) Traps Checked 2016-17
Reptiles
53% 47%**
3%
96%
Mammals
27%
74%
Scorpions
“Live” Dead
**Greatly Underestimate % Dead: Predation + Beetle Decomposition
368 (307) Traps Checked 2016-17
Reptiles
53% 47%**
3%
96%
Mammals
27%
74%
Scorpions
“Live” Dead
**Greatly Underestimate % Dead: Predation + Beetle Decomposition
Pit Fall Traps - 309
100’s of traps destroyed in 2012 100+ destroyed in 2017 100’s remain
2017: Survey 30 Active Traps (40t) 0.5 Miles Dirt Road; May-June ‘17 Removed All Live & Dead Weekly
Repeated Pit Fall Surveys (30 traps)
0.00
0.20
0.40
0.60
0.80
1.005/
25
5/27
5/29
5/31 6/
2
6/4
6/6
6/8
6/10
6/12
6/14
6/16
6/18
6/20
Mammals (0/34)
% L
IVE
ANIM
ALS
Repeated Pit Fall Surveys (30 traps)
0.00
0.20
0.40
0.60
0.80
1.005/
25
5/27
5/29
5/31 6/
2
6/4
6/6
6/8
6/10
6/12
6/14
6/16
6/18
6/20
Reptiles (27/30)% L
IVE
ANIM
ALS
Repeated Pit Fall Surveys (30 traps)
0.00
0.20
0.40
0.60
0.80
1.005/
25
5/27
5/29
5/31 6/
2
6/4
6/6
6/8
6/10
6/12
6/14
6/16
6/18
6/20
Reptiles (27/30)
Scorpions (8/13)
% L
IVE
ANIM
ALS
Repeated Pit Fall Surveys (30 traps)
0.00
0.20
0.40
0.60
0.80
1.005/
25
5/27
5/29
5/31 6/
2
6/4
6/6
6/8
6/10
6/12
6/14
6/16
6/18
6/20
Reptiles (27/30)
Mammals (0/34)
Scorpions (8/13) @ $4 = $32
@ $2.50-6.00* = $106
% L
IVE
ANIM
ALS
Imagine the impact of 700+ traps, open 365 days/year for ~20 years…
100’s of traps destroyed in 2012 100+ destroyed in 2017 100’s remain
0
5000
10000
15000
20000
25000
30000
35000
Why The Decline?
Reptiles Collected (N = 104 - 3,180) Collectors (N = 2 - 31)
Captive Breeding Population Level Impacts
Reptiles play an important role in the economy, culture, & ecosystems in which they reside Reptiles are niche specialists & “best” indicators for assessing habitat & climate changes (ectothermic or “cold blooded”)
Collection targets & depletes population sources of long lived & reproductively limited species; requiring increased species diversity & collection areas (CA-AZ?) to match market demands Collection is additive to the ongoing list of current threats (e.g., habitat conversion/loss, drought, disease) Data has limited management/scientific value as the market not management dictates collection patterns & trends Given the increasing trend of captive breeding (90% US exports) there is a decreasing need for commercial collection Many of the top collected species fair poorly (die) in captivity (ethics)
Also of Concern: Disease & The Herp Trade
“Amphibians & reptiles are among the most commonly traded animals & this trade has raised concern because of its potential impact on natural populations, animal welfare & the spread of invasive species & emerging infectious disease.”
15 states; 30 spp. (England, Germany, & Australia)
Snake Fungal Disease
Chytrid
BSal
Europe & Asia (European pet trade)
Global (International pet trade)
Great Basin
Mojave
Nanjappa & Conrad 2011 -Modified
Commercial (Regs)
Greatest
Low
Mod-High
Moderate
Why NV is Great!
?
The End?
Jason L. Jones Herpetologist Diversity Division [email protected] 702-486-5127 ext 3718 photo & literature references available upon request