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Local extinctions of obligate frugivores and patch size reduction disrupt the structure of seed dispersal networks
(Wiley-Blackwell, 2018-11-01)
A central problem in ecology is to understand how human impacts affect plant-animal interactions that lead to effective seed dispersal services for plant communities. Seed dispersal services are the outcome of plant-frugivore ...
Are all patches worth exploring? Foraging desert birds do not rely on environmental indicators of seed abundance at small scales
(BioMed Central, 2019-06)
Background: Consumers should show strong spatial preferences when foraging in environments where food availability is highly heterogeneous and predictable. Postdispersal granivores face this scenario in most arid areas, ...
Temporal asynchrony in fine-root biomass may contribute to shrub and grass coexistence in mixed patches
(Wiley, 2014-01-15)
We described seasonal changes in fine-root biomass of a grass and a shrub dominant species in a plant community characteristic of the arid Patagonian Monte and then we inferred to want extent the observed differences could ...
MPT64 patch test for the diagnosis of active pulmonary tuberculosis: a randomised controlled trial in Peru
(International Union Against Tuberculosis and Lung Disease, 2018)
SETTING: There remains a lack of effective and inexpensive diagnostic tools for active tuberculosis (TB) disease. Testing immune responses to proteins secreted by Mycobacterium tuberculosis, such as MPT64, may be a diagnostic ...
Grassland connectivity explains entomophilous plant species assemblages in an agricultural landscape of the Pampa Region, Argentina
(Wiley Blackwell Publishing, Inc, 2017-06)
The Pampa grassland of Argentina is one of the most highly threatened biomes in the world. A high proportion of the original grassland cover has been transformed into land for agriculture or degraded. In the southern part ...
Exploration and exploitation of foraging patches by desert sparrows: environmental indicators and local evaluation of spatially correlated costs and benefits
(Wiley, 2015-05)
Conventional evolutionary and behavioral reasoning expects foragers to show strong spatial preferences in environments with heterogeneous resource distribution. Moreover, consumers should benefit from exploiting the ...
Patchiness of grass mycorrhizal colonization in the Patagonian steppe
(Academic Press Ltd - Elsevier Science Ltd, 2017-02)
In arid and semi-arid ecosystems vegetation is often arranged in high-density patches imbedded in an extensive matrix dominated by bare soil. This study explores the importance of vegetation pattern in the relationship ...
Patch exploitation strategies of parasitoids: The role of sex ratio and forager's interference in structuring metapopulations
(Elsevier Science BvAmsterdamHolanda, 2012)
Crab herbivory regulates re-colonization of disturbed patches in a southwestern Atlantic salt marsh
(Wiley Blackwell Publishing, Inc, 2011-06)
Recent work exploring the effects of physical stress and herbivory on secondary succession in estuarine plant communities agrees with basic stress models and reveal that herbivory is an important force in brackish and ...