Dispersing brush mice prefer habitat like home

Mabry, Karen E.; Stamps, Judy A.

doi:10.1098/rspb.2007.1541

Cited by 66 publications

(61 citation statements)

References 29 publications

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“…Recognition of and preference for habitat features that resemble those of the natal area by dispersing individuals is termed habitat imprinting or natal habitat preference induction (NHPI) [12][13][14]. This mechanism for habitat selection is thought to have adaptive significance because a natal area that supports offspring to dispersal age likely typifies quality habitat [15].…”

Section: Introductionmentioning

confidence: 99%

Evidence of natal habitat preference induction within one habitat type

Merrick¹,

Koprowski²

2016

Proc. R. Soc. B.

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Natal habitat preference induction (NHPI) is a mechanism for habitat selection by individuals during natal dispersal. NHPI occurs in wild animal populations, and evidence suggests it may be a common, although little studied, mechanism for post-dispersal habitat selection. Most tests of NHPI examine the influence of distinct, contrasting natal habitat types on post-dispersal habitat selection. We test the hypothesis that NHPI can occur within a single habitat type, an important consideration for habitat specialists. The Mount Graham red squirrel (Tamiasciurus hudsonicus grahamensis) is an endangered forest obligate restricted to a single mountain primarily within mixed-conifer forest. We test for NHPI by comparing intra-individual differences in natal and settlement habitat structure and composition to expected random pairwise differences. Dispersing juveniles appear to select settlement locations that are more similar to natal areas than expected in several forest structure and composition variables that include canopy cover and live basal area. Our results provide support for NHPI as a mechanism for post-dispersal habitat selection in habitat specialists that occupy a single vegetation community type.

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Section: Introductionmentioning

confidence: 99%

Evidence of natal habitat preference induction within one habitat type

Merrick¹,

Koprowski²

2016

Proc. R. Soc. B.

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“…This strong spatial pattern has been interpreted as evidence that, following an initial urban colonization event, additional urban populations were established in a leapfrog manner (Luniak et al 1990). This could have occurred because individuals were either adapted to the novel habitat or imprinted on it (Mabry & Stamps 2008). This leapfrog model of urban colonization is particularly plausible in migratory or partially migratory species, such as the blackbird, in which occasional long-distance dispersal events of over 300 km have been recorded, even though natal and adult dispersal distances are typically much shorter than this, at approximately 3 km (Paradis et al 1998).…”

Section: Introductionmentioning

confidence: 99%

Independent colonization of multiple urban centres by a formerly forest specialist bird species

et al. 2009

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Urban areas are expanding rapidly, but a few native species have successfully colonized them. The processes underlying such colonization events are poorly understood. Using the blackbird Turdus merula, a former forest specialist that is now one of the most common urban birds in its range, we provide the first assessment of two contrasting urban colonization models. First, that urbanization occurred independently. Second, that following initial urbanization, urban-adapted individuals colonized other urban areas in a leapfrog manner. Previous analyses of spatial patterns in the timing of blackbird urbanization, and experimental introductions of urban and rural blackbirds to uncolonized cities, suggest that the leapfrog model is likely to apply. We found that, across the western Palaearctic, urban blackbird populations contain less genetic diversity than rural ones, urban populations are more strongly differentiated from each other than from rural populations and assignment tests support a rural source population for most urban individuals. In combination, these results provide much stronger support for the independent urbanization model than the leapfrog one. If the former model predominates, colonization of multiple urban centres will be particularly difficult when urbanization requires genetic adaptations, having implications for urban species diversity.

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“…Growing evidence from a range of taxa demonstrates that dispersers often differ phenotypically from individuals that do not disperse (Benard and McCauley 2008;Clobert et al 2009) and that individuals with apparently similar capacities for dispersal may differ widely in how far they actually travel (Mabry and Stamps 2008). Behavioral, mor phological, or physiological differences between dispersers and nondispersers suggest that the interactions between dispersers and residents in the newly colonized patch may be quantitatively or qualitatively different than expected based on average values of these traits taken from both dispersers and nondispersers.…”

Section: Discussionmentioning

confidence: 99%

“…The dis tribution is often skewed toward many individuals dispers ing short distances, while a few individuals disperse over long distances. Moreover, as individuals search, they may be found long distances from the source population even though they may choose to settle and reproduce only a short distance away (Mabry and Stamps 2008). Here an average dispersal distance of 2 km ( a p 0.5) still leads to separation between the nearest and farthest pool location, while an average dispersal distance of 1 km ( a p 0.5) leads to prob able separation between all three.…”

Section: Spatial Context and Connectivitymentioning

confidence: 99%

Foraging Rates of Larval Dragonfly Colonists Are Positively Related to Habitat Isolation: Results from a Landscape‐Level Experiment

McCauley¹,

Brodin²,

Hammond³

2010

The American Naturalist

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There is increasing evidence of intraspecific variation in dispersal behavior. Individual differences in dispersal behavior may be correlated with other traits that determine the impact individuals have on patches they colonize. We established habitat patches-ar tificial pools-across a landscape, and these pools were naturally colonized by dragonfly larvae. Larvae were collected from pools at different levels of isolation and held under common lab conditions for 5 months. We then compared larval foraging rates. Foraging rate was positively related to habitat isolation, and colonists from the most isolated artificial pools had significantly higher foraging rates than individuals from the least isolated pools. Our results indicate that spatial patterns in colonist behavior can develop across a land scape independent of species-level dispersal limitation. This finding suggests that studies of community structure across space should include an assessment of the distribution of phenotypes as well as species-level dispersal limitation patterns.

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Dispersing brush mice prefer habitat like home

Cited by 66 publications

References 29 publications

Evidence of natal habitat preference induction within one habitat type

Evidence of natal habitat preference induction within one habitat type

Independent colonization of multiple urban centres by a formerly forest specialist bird species

Foraging Rates of Larval Dragonfly Colonists Are Positively Related to Habitat Isolation: Results from a Landscape‐Level Experiment

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