Frugivory by the White-bearded Manakin (Manacus manacus, Pipridae) in restinga forest, an ecosystem associated to the Atlantic forest

Cestári, César; Pizo, Marco Aurélio

doi:10.1590/s1676-06032013000200038

Cited by 4 publications

(1 citation statement)

References 13 publications

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“…Then, seeds and fruits present in food samples were analyzed in a laboratory through a stereoscopic magnifying glass to identify at the lower taxonomic level, using a seed bank of the Laboratory of Applied Ecology from the Universidade Estadual de Santa Cruz. In addition, we used information present in the literature and specific guides for the identification of plants, fruits, and seeds (Cestari and Pizo, 2013…”

Section: Understory Seed-dispersal Interactionsmentioning

confidence: 99%

Deforestation Simplifies Understory Bird Seed-Dispersal Networks in Human-Modified Landscapes

et al. 2021

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Global biodiversity is threatened by land-use changes through human activities. This is mainly due to the conversion of continuous forests into forest fragments surrounded by anthropogenic matrices. In general, sensitive species are lost while species adapted to disturbances succeed in altered environments. However, whether the interactions performed by the persisting species are also modified, and how it scales up to the network level throughout the landscape are virtually unknown in most tropical hotspots of biodiversity. Here we evaluated how landscape predictors (forest cover, total core area, edge density, inter-patch isolation) and local characteristics (fruit availability, vegetation complexity) affected understory birds seed-dispersal networks in 19 forest fragments along the hyperdiverse but highly depauperate northeast distribution of the Brazilian Atlantic Forest. Also, our sampled sites were distributed in two regions with contrasting land cover changes. We used mist nets to obtain samples of understory bird food contents to identify the plant species consumed and dispersed by them. We estimated network complexity on the basis of the number of interactions, links per species, interaction evenness, and modularity. Our findings showed that the number of interactions increased with the amount of forest cover, and it was significantly lower in the more deforested region. None of the other evaluated parameters were affected by any other landscape or local predictors. We also observed a lack of significant network structure compared to null models, which we attribute to a pervasive impoverishment of bird and plant communities in these highly modified landscapes. Our results demonstrate the importance of forest cover not only to maintain species diversity but also their respective mutualistic relationships, which are the bases for ecosystem functionality, forest regeneration and the provision of ecological services.

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Section: Understory Seed-dispersal Interactionsmentioning

confidence: 99%

Deforestation Simplifies Understory Bird Seed-Dispersal Networks in Human-Modified Landscapes

et al. 2021

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Systems biology as a framework to understand the physiological and endocrine bases of behavior and its evolution—From concepts to a case study in birds

Fuxjager

Ryder

Moody

et al. 2023

Hormones and Behavior

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A synthesis of animal‐mediated seed dispersal of palms reveals distinct biogeographical differences in species interactions

Muñoz

Trøjelsgaard

Kissling

2019

Journal of Biogeography

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Aim:To synthesize published knowledge on palm-frugivore seed dispersal observations and to test whether broad-scale differences in geographic coverage, diversity, composition and functional structure of plant-animal interactions emerge between biogeographical regions.Location: Neotropics and Afrotropics. Methods:We constructed a meta-network for both regions by aggregating observations of pairwise palm-frugivore interactions from the primary literature. We assessed sampling completeness with accumulation curves and estimated knowledge gaps for individual palm species and geographic units within biogeographical regions. We compared the taxonomic composition as well as structural indices of regional interaction networks and tested whether functional trait matching (i.e., the relationship between palm fruit size and frugivore body size) differs between regions. Results:A total of 750 unique pairwise interaction records were retrieved from the primary literature covering 340 frugivores and 126 palms. Sampling completeness of frugivore interactions within biogeographical regions and for individual palm species was low (often <50%), geographic coverage limited, and relative knowledge gaps were largest in areas with high palm species richness.Interaction diversity and network modularity was larger in the Neotropics than the Afrotropics. A positive fruit size-body mass relationship (i.e., functional trait matching) was statistically significant in the Afrotropics, but not in the Neotropics. Main conclusions:Available data on palm-frugivore interactions suggest major biogeographical differences in ecological networks among regions, even when taking differences in palm species richness into account. The Neotropics showed a larger interaction diversity and more modular network structure than the Afrotropics.Broad-scale morphological trait matching among plants and frugivores was only observed in the Afrotropics. The lack of a Neotropical trait matching relationship might be driven by the late Quaternary extinctions of mammalian megafauna in this region. Although our work has increased the digital availability of palm-frugivore -

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Frugivory by the White-bearded Manakin (Manacus manacus, Pipridae) in restinga forest, an ecosystem associated to the Atlantic forest

Cited by 4 publications

References 13 publications

Deforestation Simplifies Understory Bird Seed-Dispersal Networks in Human-Modified Landscapes

Deforestation Simplifies Understory Bird Seed-Dispersal Networks in Human-Modified Landscapes

Systems biology as a framework to understand the physiological and endocrine bases of behavior and its evolution—From concepts to a case study in birds

A synthesis of animal‐mediated seed dispersal of palms reveals distinct biogeographical differences in species interactions

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