No evidence for widespread bird declines in protected South American forests

Stouffer, Philip C.; Cockle, Kristina L.; Aleixo, Alexandre; Areta, Juan Ignacio; Barnett, Juan Mazar; Bodrati, Alejandro; Cadena, Carlos Daniel; Giacomo, Adrián S. Di; Herzog, Sebastián K.; Hosner, Peter A.; Johnson, Erik I.; Naka, Luciano N.; Sánchez, César

doi:10.1007/s10584-011-0162-1

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…We also observed the lowest proportion of diet specialists in old-growth forest. This finding is counterintuitive, yet consistent with previous reports showing a higher proportion of generalists in old-growth forests than in successional forests (Boyle and Sigel 2015; Bradfer-Lawrence et al 2018; Powell et al 2013; Stouffer et al 2011). This result too may be related to differential occupancy of old growth and successional habitats by migrants and residents.…”

Section: Discussionsupporting

confidence: 90%

Early successional habitat supports unique avian communities dominated by wintering migrants in a premontane tropical forest

Carello

Yanco

2023

J. Trop. Ecol.

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Forest succession drives concomitant changes in associated faunal communities. Thus, maintaining landscapes with high successional diversity can be an important consideration in habitat management. We sought to describe avian community characteristics across a successional gradient created by reforestation efforts in a tropical premontane wet forest in Costa Rica. Specifically, we examined the effects of successional stage on overall abundance, species richness, diet niche, migratory status, and community composition. We hypothesised that these metrics of bird abundance, diversity and community composition would differ across successional stages. Using data from transects conducted in 2018, we found that several metrics of avian abundance, diversity and community composition varied as a function of successional stage. Surprisingly, the earliest successional stage exhibited the greatest abundance, species richness and proportion of migrant species. We suggest that an ephemeral vegetation structure present for only a short period (early in succession) creates a unique habitat that results in a distinct avian community. This highlights the potential importance of early successional forests for avian communities, especially neotropical migrants.

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Section: Discussionsupporting

confidence: 90%

Early successional habitat supports unique avian communities dominated by wintering migrants in a premontane tropical forest

Carello

Yanco

2023

J. Trop. Ecol.

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“…For this reason, when I wrote the paper about the problem that apparently affects forest birds in South America (Nores 2009), I hoped that some researcher would show me that the problem is, at least, not so important as to have a significant impact on bird conservation. So, when I saw a group of 13 researchers from different countries (despite several of them not having experience in tropical forest birds) claim that there is no evidence for widespread bird decline in protected South American forests (Stouffer et al 2011); I saw this as a positive contribution. However, after reading the commentary, I am afraid that their arguments are insufficient to show that the problem may not be a threat to bird survival.…”

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confidence: 99%