Forest corridors facilitate movement of tropical forest birds after experimental translocations in a fragmented Neotropical landscape in Mexico

Ana Ibarra-Macias, W. Douglas Robinson, Michael Gaines

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We evaluated effects of corridors between forest fragments surrounded by pastures in tropical Mexico. We used experimental translocations and capture-recapture data to measure the proportion of birds returning and time to return after translocation between connected and unconnected patches (five replicates for each treatment). Depending on each species' degree of forest dependence (forest-restricted and forest-unrestricted species), we assigned birds to two groups to evaluate influence of species characteristics on effects of corridors on movement. Birds translocated between connected patches (n = 75) were seven times more likely to be recaptured in their original capture site when compared with birds translocated between unconnected patches (n = 109). Effects differed among the two species groups. In the presence of corridors, 46% of forest-unrestricted birds returned to the capture site while only 5% returned between unconnected patches. Forest-restricted birds showed similar results, but were only twice as likely to return to a connected capture site. Birds translocated between unconnected patches took longer to return than birds translocated between connected patches. The strong positive effect of corridors on movement, even for forest-unrestricted species, suggests that forested corridors facilitate bird movement and help maintain connectivity even in this highly fragmented landscape.

Original languageEnglish
Pages (from-to)547-556
Number of pages10
JournalJournal of Tropical Ecology
Volume27
Issue number5
DOIs
StatePublished - Jan 1 2011

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translocation
tropical forests
tropical forest
Mexico
bird
birds
tropical pastures
corridor
habitat fragmentation
connectivity
pasture
effect

Keywords

  • bird movement
  • connectivity
  • dispersal
  • forest fragmentation
  • Mexico
  • Palenque National Park
  • tropical forest

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Cite this

Forest corridors facilitate movement of tropical forest birds after experimental translocations in a fragmented Neotropical landscape in Mexico. / Ibarra-Macias, Ana; Robinson, W. Douglas; Gaines, Michael.

In: Journal of Tropical Ecology, Vol. 27, No. 5, 01.01.2011, p. 547-556.

Research output: Contribution to journalArticle

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