Dispersal pattern of mountain gazelles Gazella gazella released in central Arabia

Dunham, Kevin M.

doi:10.1006/jare.1999.0588

Cited by 14 publications

(11 citation statements)

References 15 publications

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“…The large home range size found in Wadi Nukhailan, corresponded with home range size of females dispersing from their release area during the course of Dunham's (1998a) study. This indicates that the newly released animals in Wadi Nukhailan were also still in a process of dispersal and had not yet fully settled one to two years after their release (see also Dunham, 2000). Grau (1974) reported on female home range size as considerably smaller in northern Negev (0.13e0.15 km 2 ) than in this or Dunham's (1998a) study, indicating that female resources (i.e.…”

Section: Discussionmentioning

confidence: 82%

“…On the other hand, because population density was also lower in Wadi Nukhailian, food availability per animal and consequently possible intensity of competition would not differ between areas. However, increased competition could lead to increased dispersal rates, and therefore to a larger number of emigrating animals which are supplanted into peripheral, less well protected areas of the reserve, with sub-optimal habitat conditions and increased human presence (maximum dispersal distance: 12.2 km; Dunham, 2000). Those animals are prone to human disturbance and increased hunting.…”

Section: Discussionmentioning

confidence: 99%

“…Between 1993 and 1995, 30 mountain gazelles were released into the Wadi Bawdan system (Wadi Jidr, Dunham, 1997a). During the years following the re-introduction, ear-tagged and radio-collared gazelles were intensively monitored and their dispersal patterns and home range extensions were established (Dunham, 1997a(Dunham, ,b, 1998a(Dunham, , 1999(Dunham, , 2000(Dunham, , 2001. By the beginning of 1995 it was estimated that about 185 mountain gazelles inhabited the reserve (Dunham, 1997a,c).…”

Section: Study Area and Populationmentioning

confidence: 99%

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Factors affecting population dynamics of re-introduced mountain gazelles (Gazella gazella) in the Ibex Reserve, central Saudi Arabia

Wronski

2010

Journal of Arid Environments

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Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Section: Study Area and Populationmentioning

confidence: 99%

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Factors affecting population dynamics of re-introduced mountain gazelles (Gazella gazella) in the Ibex Reserve, central Saudi Arabia

Wronski

2010

Journal of Arid Environments

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“…Often only a few individuals move exceptionally farther than the remainder of that population (Taylor 1978). Consequently, the distribution of dispersal distances is typically negatively skewed with a long tail-a pattern observed for many reintroduced and established animal populations (Dunham 2000;Larter et al 2000;Byrom 2002;Forsman et al 2002). In our study, however, dispersal distances did not fit a negative skew distribution model: 60% of surviving elk dispersed >30 km, 33% in excess of 50 km.…”

Section: Discussionmentioning

confidence: 94%

Movement and Spread of a Founding Population of Reintroduced Elk (Cervus elaphus) in Ontario, Canada

Yott

Rosatte

Schaefer

et al. 2011

Restoration Ecology

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Monitoring the distribution and movements of a species following reintroduction can aid resource managers in assessing release-site fidelity, rates of spread, initial project success, and feasibility of (or need for) future releases. We used radio-telemetry to monitor an entire founding population of 70 elk (Cervus elaphus) during 16 months following their reintroduction to eastern Ontario, Canada. At the end of the study, elk were widely scattered over a 27,000 km 2 area. Dispersal distances ranged from 2 to 142 km; 50% of animals moved >40 km from the release site. Dispersal distances differed by time periods and age but not sex. Calves dispersed significantly shorter distances than adults and many mature elk were isolated during the rut. In contrast to a random distribution model, movements had a strongly southwestern directional bias, perhaps owing to prevailing winds from the same direction. Mortality during the study period was 27%; the primary causes of known mortalities were emaciation, collision with automobiles, and illegal shooting. During the first 1 1/ 2 years, lack of releasesite fidelity and high dispersal coupled with animal-human conflicts and mortalities likely contributed to an initial lag in population growth. Resource managers planning animal reintroductions should consider using methodologies that enhance site fidelity following release.

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“…Bighorn (Ovis canadensis) rams of intermediate ranking can move to demes with a more favourable female ratio during the rut, seemingly to increase chances of reproduction (Festa-Bianchet 1986;Hogg 2000). Dunham (2000) recorded breeding dispersal of male and female mountain gazelles (Gazella gazella). But this was captive-born animals released in a reintroduction programme and it cannot be excluded that the movements were affected by this.…”

Section: Introductionmentioning

confidence: 99%

Male red deer (Cervus elaphus) dispersal during the breeding season

Jarnemo¹

2011

J Ethol

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Breeding dispersal can be of significant ecological and evolutionary importance. Yet, it is seldom considered in mammals. I present data on male red deer (Cervus elaphus) movements between sub-populations in southern Sweden during the rut. I investigated whether these movements could be breeding dispersal driven by mate competition. During the ruts of 1998-2009, I recorded 91 movements of males. The longest movement distance was 18.5 km. Dispersal was not restricted to yearlings or sub-adults, but also observed among adult stags. Of 91 movements observed, 7 were made by yearlings, 46 by sub-adults and 38 by adults. There was a significant move among yearlings and sub-adults towards areas with a higher ratio of females/adult males and towards areas with more females. The movements between rutting areas thereby seemed driven by sexual competition.

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Dispersal pattern of mountain gazelles Gazella gazella released in central Arabia

Cited by 14 publications

References 15 publications

Factors affecting population dynamics of re-introduced mountain gazelles (Gazella gazella) in the Ibex Reserve, central Saudi Arabia

Factors affecting population dynamics of re-introduced mountain gazelles (Gazella gazella) in the Ibex Reserve, central Saudi Arabia

Movement and Spread of a Founding Population of Reintroduced Elk (Cervus elaphus) in Ontario, Canada

Male red deer (Cervus elaphus) dispersal during the breeding season

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