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Bird habitat preferences drive hemoparasite infection in the Neotropical region

Integrative Zoology 2021年第5期16卷 755-768页

作者： gabriel massaccesi de la torre Karla Magalhães CAMPIÃO Biological Interactions Departamento de ZoologiaUniversidade Federal do ParanáCuritibaBrazil Programa de Pós-graduação em Ecologia e Conservação Universidade Federal do ParanáCuritibaBrazil

The role that the environment plays in vector-borne parasite infection is one of the central factors for understanding disease *** assessed how Neotropical bird foraging strata and habitat preferences determine infection by parasites of the genera Haemoproteus,Plasmodium,Leucocytozoon,and Trypanosoma and filarioids,and tested for phylogenetic signal in these host-parasite *** performed extensive searches of the scientific literature and created a database of hemoparasite *** collected data on host body mass,foraging strata,habitat preference,and migratory status,and tested if host ecological traits predict each hemoparasite occurrence and prevalence using a phylogenetic Bayesian *** of Plasmodium tend to infect birds from tropical forests while birds from altitudinal environments are likely to be infected by species of *** probability of a bird being infected by filarioid or Trypanosoma is higher in lowland *** species that occur in anthropic environments and dry habitats of tropical latitudes are more susceptible to infection by species of *** foraging strata is also influential and bird species that forage in the mid-high and canopy strata are more prone to infection by species of Haemoproteus and *** also identified phylogenetic signal for host-parasite associations with the probability of infection of Neotropical birds by any hemoparasite being more similar among more closely related *** provided a useful framework to identify environments that correlate with hemoparasite infection,which is also helpful for detecting areas with potential suitability for hemoparasite infection due to land conversion and climate change.

关键词： habitat use haemosporidians host-parasite interaction migratory birds prevalence

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The roles of anurans in antagonistic networks are explained by life-habit and body-size

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Integrative Zoology 2022年第4期17卷 530-542页

作者： Amanda Caroline DUDCZAK gabriel massaccesi de la torre Lorena EUCLYdeS Karla Magalhães CAMPIÃO department of Zoology Federal University of ParanáCuritibaBrazil Postgraduate Program in Zoology Federal University of ParanáCuritibaBrazil Postgraduate Program in Ecology and Conservation Federal University of ParanáCuritibaBrazil

Interactions among living beings are the structuring basis of ecosystems,and studies of networks allow us to identify the patterns and consistency of such *** networks reflect the energy flow of communities,and identifying network structure and the biological aspects that influence its stability is crucial to understanding ecosystem *** used antagonistic anuran interactions-predator-prey and host-parasite-to assess structural patterns and to identify the key anuran species structuring these *** tested whether anuran body-size and life-habit are related to their roles in these *** collected individuals of 9 species of anurans from an area of the Atlantic Forest in Brazil and identified their prey and helminth *** used network(modularity,specialization,and nestedness)and centrality metrics(degree,closeness,and betweenness)to identify the role of anuran species in both *** then evaluated whether anuran body-size or life-habit were related to anuran centrality using generalized linear mixed *** networks formed specialized interactions in compartments composed by key species from different *** our networks,anurans with rheophilic and cryptozoic habit are central in predator-prey networks,and those with larger body size and arboreal and cryptozoic habit in the host-parasite *** study represents a step towards a better understanding of the influential factors that affect the structure of anuran antagonist networks,as well as to recognize the functioning roles of anuran species.

关键词： diet disease food web helminth infection network centrality

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OPTIMUM POLYTOPAL VECTOR QUANTIZATION WITH COMPUTED PROGRESSIVE deCODING

OPTIMUM POLYTOPAL VECTOR QUANTIZATION WITH COMPUTED PROGRESS...

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International Conference on Signal Processing(ICSP’93)

作者： gabriel Robles-de-la-torre Guillermo Fernandez-Anaya U.N.A.M. Facultad de IngenieriaDIBCC.U.c.p.04510 and Universidad IberoamericanaDepto.de SistemasMexico D.F. U.N.A.M. Facultad de IngenieriaDIECC.U.c.p.04510 andDepto.de MatematicasMexico D.F.

＜正＞We present a new technique to design polytopal （euclidean distortion based） Vector Quantization （VQ） systems with reduced encoding complexity and the capability of both optimum encoding and progressive decoding with approximately a half of the memory required in the usual Tree-Structured VQ（TSVQ） technique used for this purpose.

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