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Cougar Predation

Canada Balam Offline
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#74

(12-23-2020, 08:19 AM)Balam Wrote: Cougar predation on feral red deer across different sites in Argentina.

From: Un análisis preliminar de causas de mortalidad, mortandad relacionada a capturas y supervivencia en adultos de ciervo colorado en el noroeste de la Patagonia, by Flueck et al.


*This image is copyright of its original author


ABSTRACT. The red deer (Cervus elaphus), among the world’s 14 most invasive exotic mammals, hasrecently arrived in Patagonia. Forty-seven deer were captured, marked with radio collars, andmonitored in order to determine survival rates and identify causes of death. Net gunning froma helicopter allowed captures to be evenly distributed through the study area and in a timely manner.The absence of capture related mortality in our study agrees with previously reported low ratesfor this method. Animals were monitored for periods ranging from 5 to 2611 days. Ten animalsprovided censored values due to radio failures or being shot: they survived on average 811 days(SE = 221) after capture. Ten animals experienced natural deaths with an average time alive aftercapture of 413 days (SE = 106): eight were killed by puma (Puma concolor). The remaining 27 animalswere alive for an average of 974 days (SE = 52). Twenty-one percent of the animals died naturallyduring 38.549 deer-days. Using the Kaplan-Meier procedure, the annual survival rates for theyears 2001-2003 were 0.89, 0.91 and 0.92 respectively (n = 47); the average annual survival ratebeing 91%. Although predation was the most important cause of adult mortality, all mortalitysources combined (puma predation, legal and illegal hunting, disease, emigration) have not maintaineddeer population density low enough to prevent food limitation from occurring in the recent past. 

Cougar with red deer kill from the Luro park, in the pampas of Argentina where red deer are particularly plentiful:


*This image is copyright of its original author

Source

More data on the rates of predation on red deer in the Patagonia. From: ECOLOGÍA, IMPACTO Y MANEJO DEL CIERVO
COLORADO (Cervus elaphus) EN EL NOROESTE DE LA PATAGONIA, ARGENTINA, by María Andrea Relva & Javier Sanguinetti


*This image is copyright of its original author
"Another of the ecological functions affected by red deer in the northeast of the Patagonia is related to the disruption in the predator-prey interactions and the total modifications of the trophic web in the invaded ecosystem. Currently the red deer is a key prey for the cougar (Puma concolor), representing 43% of the consumed biomass of this carnivore (Novaro ey al., 2000)..."
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Messages In This Thread
Cougar Predation - smedz - 04-27-2019, 07:12 PM
RE: Cougar Predation - smedz - 04-28-2019, 05:39 AM
RE: Cougar Predation - Sanju - 04-28-2019, 04:54 PM
RE: Cougar Predation - smedz - 04-29-2019, 02:07 AM
RE: Cougar Predation - smedz - 04-29-2019, 02:09 AM
RE: Cougar Predation - epaiva - 04-29-2019, 02:42 AM
RE: Cougar Predation - smedz - 05-01-2019, 01:42 AM
RE: Cougar Predation - smedz - 05-02-2019, 01:34 AM
RE: Cougar Predation - smedz - 05-02-2019, 01:35 AM
RE: Cougar Predation - smedz - 05-03-2019, 02:01 AM
RE: Cougar Predation - smedz - 05-03-2019, 02:04 AM
RE: Cougar Predation - smedz - 05-03-2019, 02:08 AM
RE: Cougar Predation - smedz - 05-03-2019, 02:12 AM
RE: Cougar Predation - epaiva - 05-04-2019, 10:59 PM
RE: Cougar Predation - smedz - 05-05-2019, 09:24 PM
RE: Cougar Predation - smedz - 05-05-2019, 09:38 PM
RE: Cougar Predation - Sully - 05-31-2019, 08:26 AM
RE: Cougar Predation - johnny rex - 05-31-2019, 06:13 PM
RE: Cougar Predation - Sully - 05-31-2019, 08:56 PM
RE: Cougar Predation - Sully - 10-16-2019, 03:33 AM
RE: Cougar Predation - GreenGrolar - 10-19-2019, 01:04 PM
RE: Cougar Predation - Dark Jaguar - 11-19-2019, 02:57 PM
RE: Cougar Predation - Dark Jaguar - 11-19-2019, 04:00 PM
RE: Cougar Predation - BorneanTiger - 11-20-2019, 03:53 PM
RE: Cougar Predation - Dark Jaguar - 12-18-2019, 05:22 AM
RE: Cougar Predation - Dark Jaguar - 04-18-2020, 02:27 AM
RE: Cougar Predation - Dark Jaguar - 04-20-2020, 07:25 PM
RE: Cougar Predation - Balam - 05-14-2020, 07:35 AM
RE: Cougar Predation - Balam - 05-14-2020, 07:39 AM
RE: Cougar Predation - Balam - 05-14-2020, 07:41 AM
RE: Cougar Predation - Balam - 05-14-2020, 07:43 AM
RE: Cougar Predation - Balam - 05-14-2020, 07:44 AM
RE: Cougar Predation - Balam - 05-14-2020, 07:52 AM
RE: Cougar Predation - Balam - 05-24-2020, 08:08 AM
RE: Cougar Predation - Balam - 05-24-2020, 08:20 AM
RE: Cougar Predation - Balam - 05-26-2020, 07:30 PM
RE: Cougar Predation - Balam - 05-26-2020, 07:34 PM
RE: Cougar Predation - Spalea - 05-30-2020, 09:37 AM
RE: Cougar Predation - Balam - 06-19-2020, 03:12 AM
RE: Cougar Predation - Balam - 06-20-2020, 06:31 AM
RE: Cougar Predation - Balam - 06-21-2020, 08:07 AM
RE: Cougar Predation - bruin - 06-21-2020, 01:18 PM
RE: Cougar Predation - Balam - 06-23-2020, 06:23 PM
RE: Cougar Predation - Balam - 06-23-2020, 06:36 PM
RE: Cougar Predation - Balam - 06-23-2020, 06:46 PM
RE: Cougar Predation - Balam - 06-24-2020, 05:26 AM
RE: Cougar Predation - CatTiger010 - 06-26-2020, 02:11 AM
RE: Cougar Predation - Balam - 06-27-2020, 07:29 AM
RE: Cougar Predation - Balam - 07-01-2020, 06:08 PM
RE: Cougar Predation - Dark Jaguar - 07-11-2020, 06:52 PM
RE: Cougar Predation - Balam - 07-13-2020, 09:13 PM
RE: Cougar Predation - Balam - 07-18-2020, 05:54 AM
RE: Cougar Predation - Balam - 08-15-2020, 07:20 PM
RE: Cougar Predation - Balam - 08-21-2020, 03:59 PM
RE: Cougar Predation - Balam - 08-28-2020, 06:36 AM
RE: Cougar Predation - Balam - 09-03-2020, 03:49 AM
RE: Cougar Predation - Balam - 09-05-2020, 05:31 PM
RE: Cougar Predation - Balam - 10-10-2020, 04:27 AM
RE: Cougar Predation - Balam - 10-13-2020, 01:41 AM
RE: Cougar Predation - Balam - 10-13-2020, 02:26 AM
RE: Cougar Predation - Balam - 10-31-2020, 07:00 PM
RE: Cougar Predation - Dark Jaguar - 11-15-2020, 05:49 PM
RE: Cougar Predation - Dark Jaguar - 11-20-2020, 08:32 PM
RE: Cougar Predation - Balam - 12-02-2020, 06:56 AM
RE: Cougar Predation - pardusco - 12-09-2020, 05:32 AM
RE: Cougar Predation - pardusco - 12-11-2020, 01:46 AM
RE: Cougar Predation - Balam - 12-11-2020, 08:52 AM
RE: Cougar Predation - Balam - 12-12-2020, 07:59 PM
RE: Cougar Predation - pardusco - 12-13-2020, 02:56 AM
RE: Cougar Predation - Balam - 12-13-2020, 07:45 PM
RE: Cougar Predation - Balam - 12-13-2020, 07:43 PM
RE: Cougar Predation - Balam - 12-23-2020, 08:19 AM
RE: Cougar Predation - Balam - 12-24-2020, 12:48 AM
RE: Cougar Predation - Balam - 01-04-2021, 09:50 AM
RE: Cougar Predation - Sully - 01-06-2021, 09:26 PM
RE: Cougar Predation - Dark Jaguar - 01-13-2021, 06:02 PM
RE: Cougar Predation - Balam - 01-19-2021, 04:31 AM
RE: Cougar Predation - Acinonyx sp. - 01-21-2021, 09:25 PM
RE: Cougar Predation - Dark Jaguar - 01-27-2021, 10:57 PM
RE: Cougar Predation - TheNormalGuy - 01-28-2021, 05:06 AM
RE: Cougar Predation - Acinonyx sp. - 01-29-2021, 03:43 AM
RE: Cougar Predation - Balam - 02-20-2021, 02:56 AM
RE: Cougar Predation - Sully - 02-21-2021, 08:24 AM
RE: Cougar Predation - Balam - 02-22-2021, 09:50 PM
RE: Cougar Predation - Balam - 03-01-2021, 08:33 AM
RE: Cougar Predation - Balam - 03-09-2021, 01:01 AM
RE: Cougar Predation - Balam - 03-15-2021, 05:23 AM
RE: Cougar Predation - Balam - 03-26-2021, 04:39 AM
RE: Cougar Predation - Balam - 04-03-2021, 11:03 PM
RE: Cougar Predation - Dark Jaguar - 04-04-2021, 03:00 AM
RE: Cougar Predation - Balam - 04-04-2021, 04:17 PM
RE: Cougar Predation - Balam - 04-11-2021, 11:08 PM
RE: Cougar Predation - Balam - 04-15-2021, 01:01 AM
RE: Cougar Predation - Balam - 05-09-2021, 09:43 PM
RE: Cougar Predation - Balam - 05-20-2021, 07:26 PM
RE: Cougar Predation - Dark Jaguar - 06-21-2021, 02:49 PM
RE: Cougar Predation - Acinonyx sp. - 02-20-2022, 08:32 AM
RE: Cougar Predation - Twico5 - 03-16-2022, 04:14 AM
RE: Cougar Predation - Pckts - 04-20-2022, 10:39 PM
RE: Cougar Predation - LandSeaLion - 04-29-2022, 06:06 AM
RE: Cougar Predation - Twico5 - 05-13-2022, 08:15 PM
RE: Cougar Predation - Lycaon - 10-02-2022, 08:28 PM
RE: Cougar Predation - TheHyenid76 - 01-02-2024, 05:32 PM



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