Space-use behaviour of woodland caribou based on a cognitive movement model

被引：89

作者：

Avgar, Tal ^{[1
]}

Baker, James A. ^{[1
]}

Brown, Glen S. ^{[2
]}

Hagens, Jevon S. ^{[3
]}

Kittle, Andrew M. ^{[1
]}

Mallon, Erin E. ^{[1
]}

McGreer, Madeleine T. ^{[1
]}

Mosser, Anna ^{[1
]}

Newmaster, Steven G. ^{[1
]}

Patterson, Brent R. ^{[4
]}

Reid, Douglas E. B. ^{[3
]}

Rodgers, Art R. ^{[3
]}

Shuter, Jennifer ^{[3
]}

Street, Garrett M. ^{[1
]}

Thompson, Ian ^{[5
]}

Turetsky, Merritt J. ^{[1
]}

Wiebe, Philip A. ^{[5
]}

Fryxell, John M. ^{[1
]}

机构：

[1] Univ Guelph, Dept Integrat Biol, Guelph, ON N1G 2W1, Canada

[2] Ontario Minist Nat Resources, Ontario Wildlife Populat Monitoring Program, Sault Ste Marie, ON P6A 2E5, Canada

[3] Ontario Minist Nat Resources, Ctr Northern Forest Ecosyst Res, Thunder Bay, ON P7B 5E1, Canada

[4] Trent Univ, Ontario Minist Nat Resources, Wildlife Res & Monitoring Sect, Peterborough, ON K9J 7B8, Canada

[5] Canadian Forest Serv, Great Lakes Forestry Ctr, Sault Ste Marie, ON P6A 2E5, Canada

来源：

JOURNAL OF ANIMAL ECOLOGY | 2015年 / 84卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

apparent competition; attribute memory; informative prior; landscape of fear; perceptual range; redistribution kernel; resource selection; spatial memory; step selection; telemetry; ANIMAL MOVEMENT; SELECTION FUNCTIONS; RANGIFER-TARANDUS; HABITAT SELECTION; SPATIAL MEMORY; ECOLOGY; PREDATION; FIDELITY; DECLINE; MOOSE;

D O I：

10.1111/1365-2656.12357

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

1. Movement patterns offer a rich source of information on animal behaviour and the ecological significance of landscape attributes. This is especially useful for species occupying remote landscapes where direct behavioural observations are limited. In this study, we fit a mechanistic model of animal cognition and movement to GPS positional data of woodland caribou (Rangifer tarandus caribou; Gmelin 1788) collected over a wide range of ecological conditions. 2. The model explicitly tracks individual animal informational state over space and time, with resulting parameter estimates that have direct cognitive and ecological meaning. Three biotic landscape attributes were hypothesized to motivate caribou movement: forage abundance (dietary digestible biomass), wolf (Canis lupus; Linnaeus, 1758) density and moose (Alces alces; Linnaeus, 1758) habitat. Wolves are the main predator of caribou in this system and moose are their primary prey. 3. Resulting parameter estimates clearly indicated that forage abundance is an important driver of caribou movement patterns, with predator and moose avoidance often having a strong effect, but not for all individuals. From the cognitive perspective, our results support the notion that caribou rely on limited sensory inputs from their surroundings, as well as on long-term spatial memory, to make informed movement decisions. Our study demonstrates how sensory, memory and motion capacities may interact with ecological fitness covariates to influence movement decisions by free-ranging animals.

引用

页码：1059 / 1070

页数：12

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