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Title of Journal: Behav Ecol Sociobiol

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Abbravation: Behavioral Ecology and Sociobiology

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Springer Berlin Heidelberg

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DOI

10.1016/j.apcata.2004.02.028

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1432-0762

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The behavioural consequences of translocation how

Authors: Lachlan J Pettit Matthew J Greenlees Richard Shine
Publish Date: 2016/12/07
Volume: 71, Issue: 1, Pages: 15-
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Abstract

Invasive species must respond appropriately to novel habitats as they expand their ranges The degree of habitat novelty is likely to be the highest immediately following humanmediated rangeexpansion which can move an individual very large distances beyond its home range within a short space of time How does translocation affect those critically important initial colonists We collected cane toads Rhinella marina in eastern Australia in heath and woodland habitats simulated either shortdistance or longdistance transport level of transport stress and then either returned toads to their exact collection point or reciprocally translocated them to a novel site Following release we radiotracked toads for 5 days and recorded their shelter types and microhabitat use daily We also examined the thermal and hydric conditions experienced by toads and tested if prey intake stomach mass and body condition of translocated toads differed from those of resident conspecifics Translocated toads used different types of diurnal shelters were more exposed by day and experienced higher diurnal temperatures but not more desiccating conditions Analysis of stomach contents indicated that translocation per se did not reduce feeding rates nor reduce body condition However toads exposed to higher transport stress simulating longdistance displacement exhibited changes to body condition and hydric balance Shifts in toad shelter site use induced by translocation may increase the toads’ visibility to diurnal predators thereby reducing toad survival but also exacerbating the ecological impact of toads during the initial phase of posttranslocation dispersalEach stage of the invasion process poses unique challenges for invading taxa and very few species possess the full suite of behavioural physiological or morphological traits required to pass through all stages of the invasion pathway Although the study of invasion biology has grown exponentially most research has focused on the determinants of invasion success during the later stages of establishment and spread neglecting the earlier stages of transport and introduction Understanding how species respond to all stages of the invasion process can clarify the nonrandom traits that allow certain species to become successful invaders


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  12. Experimentally elevated plasma levels of testosterone do not increase male reproductive success in blue tits
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  14. Underwater and above-water search patterns of an Arctic seabird: reduced searching at small spatiotemporal scales
  15. Reproductive trade-offs from mating with a successful male: the case of the tephritid fly Anastrepha obliqua
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