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Simulated elephant-induced habitat changes can create dynamic landscapes of fear
ID
Fležar, Urša
(
Avtor
),
ID
Le Roux, Elizabeth
(
Avtor
),
ID
Kerley, Graham I. H.
(
Avtor
),
ID
Kuijper, Dries P. J.
(
Avtor
),
ID
te Beest, Mariska
(
Avtor
),
ID
Druce, Dave J.
(
Avtor
),
ID
Prinsloo, Dominique
(
Avtor
),
ID
Cromsigt, Joris P. G. M.
(
Avtor
)
URL - Izvorni URL, za dostop obiščite
https://doi.org/10.1016/j.biocon.2019.07.012
Galerija slik
Izvleček
Landscapes of fear have become widely studied in the northern hemisphere, but are still largely understudied in the more complex, diverse carnivore-prey communities of Africa. Habitat changes brought about by a megaherbivore, the African elephant (Loxodonta africana), can modify the perceived landscape of fear by predation vulnerable prey species (impala Aepyceros melampus and warthog Phacochoerus africanus) in contrast with non-prey species (white rhinoceros Ceratotherium simum). We hypothesized that by opening up woody vegetation, elephants may modify perceived risk at a landscape-scale, but also at a fine scale by depositing escape impediments in the form of coarse woody debris. We experimentally tested this in Hluhluwe-iMfolozi Park, South Africa, by simulating elephant-induced habitat changes on patch scale (opening up woody vegetation) and within-patch scale (deposition of coarse woody debris) and monitoring the herbivore visitation using camera traps. We compared visitation on the edge of grazing lawns (in proximity of dense vegetation) and the centre (open, highly visible patches), either with or without coarse woody debris and with or without fresh predator scat. We found that mesoherbivore prey species showed contrasting responses, with warthog avoiding plots close to dense vegetation and plots with coarse woody debris. Impala reduced their visitation to dense vegetation patches only during risky times, at night, especially in the presence of predator scat, but did not clearly avoid plots with coarse woody debris. Our study indicates that, in African savannas, the perceived landscape of fear is a highly dynamic phenomenon varying in both space and time and being species-specific. Elephant induced habitat changes may shape landscapes of fear in complex and contrasting ways.
Jezik:
Angleški jezik
Ključne besede:
megaherbivores
,
camera traps
,
predation risk
,
predator cue
,
coarse woody debris
,
Hluhluwe-iMfolozi Park
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
BF - Biotehniška fakulteta
Status publikacije:
Objavljeno
Leto izida:
2019
Št. strani:
Str. 267-279
Številčenje:
Vol. 237
PID:
20.500.12556/RUL-113096
UDK:
630*14:630*15:630*58
ISSN pri članku:
0006-3207
DOI:
10.1016/j.biocon.2019.07.012
COBISS.SI-ID:
5569190
Datum objave v RUL:
03.12.2019
Število ogledov:
1528
Število prenosov:
224
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Biological Conservation
Skrajšan naslov:
Biol. Conserv.
Založnik:
Applied Science Publishers
ISSN:
0006-3207
COBISS.SI-ID:
26719232
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
megaherbivori
,
foto-pasti
,
tveganje uplenitve
,
znaki prisotnosti plenilca
,
Nacionalni park Hluhluwe-iMfolozi
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