Conservation of Nearctic Neotropical migrants: the coffee connection revisited

González-Prieto, Ana María

doi:10.5751/ace-01223-130119

Cited by 8 publications

(2 citation statements)

References 29 publications

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“…We were also able to identify the positive association of Gray‐cheeked Thrush ( n = 12 observations) with aboveground woody biomass (i.e., landscape forest cover), the only species to show this association and reflecting what has been found previously for this species at stopover and wintering sites in Colombia (Bayly et al. 2016 , González‐Prieto 2018 ). Yet, hierarchical community models are novel and additional research on relationships between community and individual species estimates would be valuable areas of further work.…”

Section: Discussionsupporting

confidence: 79%

Community modeling reveals the importance of elevation and land cover in shaping migratory bird abundance in the Andes

Arias

Wilson

Bayly

2021

Ecological Applications

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The tropical Andes are characterized by extreme topographic and climatic complexity, which has likely contributed to their outstanding current species diversity, composed of many range‐restricted species. However, little is known about how the distribution and abundance of highly mobile organisms, like long‐distance migratory birds, varies across different land covers, elevations, and climatic conditions within the Andes. We conducted 1,606 distance‐sampling point counts across the Colombian Andes, spanning elevations from 253 to 3,708 m, a range of precipitation regimes and representative land covers. We then employed a novel application of a multispecies hierarchical modeling approach to evaluate how elevation, local land cover, aboveground woody biomass, cloud cover, precipitation, and seasonality in precipitation shape the abundance of the migratory land bird community in the Andes. We detected 1,824 individuals of 29 species of migratory land birds, six of which were considered incidental in our study region. We modeled the abundance of the remaining 23 species, while considering observer and time of day effects on detectability. We found that both elevation and land cover had an overriding influence on the abundance of migratory species across the Andes, with strong evidence for a mid‐elevation peak in abundance, and species‐specific responses to both variables. As a community, migratory birds had the highest mean abundance in shade coffee plantations, secondary forest, and mature forest. Aboveground woody biomass did not affect the abundance of all species as a group, but a few showed strong responses to this variable. Contrary to predictions of a positive correlation between abundance and precipitation, we found no evidence for community‐level responses to precipitation, aside for a weak tendency for birds to select areas with intermediate levels of precipitation. This novel use of a multispecies model sheds new light on the mechanisms shaping the winter distribution of migratory birds and highlights the importance of elevation and land cover types over climatic variables in the context of the Colombian Andes.

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Section: Discussionsupporting

confidence: 79%

Community modeling reveals the importance of elevation and land cover in shaping migratory bird abundance in the Andes

Arias

Wilson

Bayly

2021

Ecological Applications

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“…2017) and that shade‐grown crops have positive impacts for biodiversity, maintaining the richness of forest specialists and generalist species, while contributing to dispersal pathways and conserving local species assembles (Pardini et al . 2009; González‐Prieto 2018; Narango et al . 2019).…”

Section: Discussionmentioning

confidence: 99%

Living in the shadows: Diversity of amphibians, reptiles and birds in shade‐grown yerba mate (Ilex paraguariensis) plantations

et al. 2020

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Native Ilex paraguariensis (yerba mate) is one of the most widespread crops in the Atlantic Forest region of southern South America and has an important economic and cultural value in Paraguay, Argentina, Brazil and Uruguay. Despite the known potential of shade-grown products (especially cocoa and coffee) to protect biodiversity, the benefits of shade-grown yerba mate for biodiversity conservation in the Atlantic Forest remain scarce, one of the most threatened ecoregions in the world, also considered a biodiversity hotspot. In order to understand these potential benefits, it is important to identify how species use shade-grown yerba mate plantations, as well as if it can be an strategy to improve or maintain biodiversity in complex socio-ecological landscapes. We analysed the potential benefits of forests with shade-grown yerba mate for birds, amphibian and reptiles in the Reserve for National Park 'San Rafael' and its buffer area (Itap ua Department, Paraguay). We evaluated differences in species richness and composition between three environments: forest with shade-grown yerba mate, forest edge and monoculture crop plantations analysing beta diversity. A total of 112 bird species were recorded in all three environments. Regarding the herpetological community, we recorded 10 species (seven amphibians and three reptiles). Our results indicate that forests with yerba mate plantations not only maintains the bird species richness, but also its species composition differs significantly from edge and croplands, which might be an indicator of the contribution of shade-grown yerba mate plantations to conservation. The results of the research would help to value the impact of sustainable agroforestry activities for the conservation of Atlantic Forest biodiversity. Abstract in Spanish is available with online material.

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Shade coffee or native forest? Indicators of winter habitat quality for a long-distance migratory bird in the Colombian Andes

González

Bayly

Wilson

et al. 2021

Ecological Indicators

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Conservation of Nearctic Neotropical migrants: the coffee connection revisited

Cited by 8 publications

References 29 publications

Community modeling reveals the importance of elevation and land cover in shaping migratory bird abundance in the Andes

Community modeling reveals the importance of elevation and land cover in shaping migratory bird abundance in the Andes

Living in the shadows: Diversity of amphibians, reptiles and birds in shade‐grown yerba mate (Ilex paraguariensis) plantations

Shade coffee or native forest? Indicators of winter habitat quality for a long-distance migratory bird in the Colombian Andes

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