3 results on '"Massocato, Gabriel"'
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2. The role of environmental temperature on movement patterns of giant anteaters.
- Author
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GIROUX, Aline, ORTEGA, Zaida, BERTASSONI, Alessandra, DESBIEZ, Arnaud Léonard Jean, KLUYBER, Danilo, MASSOCATO, Gabriel Favero, DE MIRANDA, Guilherme, MOURÃO, Guilherme, SURITA, Luciana, ATTIAS, Nina, BIANCHI, Rita de Cassia, GASPAROTTO, Vinícius Peron de Oliveira, and OLIVEIRA‐SANTOS, Luiz Gustavo Rodrigues
- Subjects
ENVIRONMENTALISM ,EXTREME weather ,MAMMAL behavior ,FOREST reserves ,BODY temperature ,MAMMAL conservation - Abstract
Mammals can show conspicuous behavioral responses to thermal variation, including changes in movement patterns. We used an integrative approach to understand how environmental temperature can drive the movement behavior of a mammal with low capacity for physiological thermoregulation, the giant anteater (Myrmecophaga tridactyla). We tracked 52 giant anteaters in 7 areas throughout the Brazilian savannah. We estimated the distance moved, area used, use of forest areas, and mean environmental temperature for each monitoring day of each individual. We modeled these data with Mixed Structural Equations — considering the possible interactions between our variables and controlling for sex and body mass. Giant anteaters reduced displacement and increased forest use with decreasing environmental temperature, probably because of their low body heat production. It is possible that they reduce distance moved and area used by reducing the duration of activity. With decreasing temperature, forest habitats become warmer than open ones, besides buffer rain and chilly winds. Reducing displacement and using forests are important strategies to reduce body heat loss and the energetic costs of thermoregulation. However, decreasing movement can limit food access and, consequently, fitness. Therefore, we highlight the importance of forests as thermal shelters. With increasing frequency and intensity of extreme weather events, we showed the need to preserve forest patches to offer suitable conditions for tropical mammals' behavioral thermoregulation. In this context, policies favoring deforestation on Brazilian territory are especially worrisome. Finally, we emphasize the need of integrative approaches to understand the complex interactions between organisms and the environment. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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3. Habitat selection and home range use by resident and reintroduced giant anteaters in two South American wetlands
- Author
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Di Blanco, Yamil Edgardo, Desbiez, Arnaud L. J., Jiménez Pérez, Ignacio, Kluyber, Danilo, Favero Massocato, Gabriel, and Di Bitetti, Mario Santiago
- Subjects
Ciencias Biológicas ,MODEL VALIDATION ,RESOURCE SELECTION FUNCTIONS ,Otras Ciencias Biológicas ,HABITAT USE ,MYRMECOPHAGA TRIDACTYLA ,FOREST ,RESOURCE AVAILABILITY ,CIENCIAS NATURALES Y EXACTAS - Abstract
One of the benefits of modeling habitat selection for a given population is the ability to predict patterns in another population that inhabits an ecologically similar area. We studied habitat selection and home ranges of reintroduced and wild giant anteaters (Myrmecophaga tridactyla) in 2 South American wetlands (Iberá, Argentina, and Pantanal, Brazil). Nine reintroduced (Iberá) and 10 wild (Pantanal) adult animals were tracked via VHF and GPS between 2007 and 2015. We used resource selection functions to assess habitat selection for the wild anteaters from Pantanal. Generalized lineal mixed models were constructed for resting and activity periods during both the wet and dry seasons. We then validated previous models built for reintroduced anteaters in Iberá using data from the wild animals from Pantanal. Habitat type (floodplain, grassland, open savanna, closed savanna, and forest) and distances to selected landscape traits were used as covariates. Locations near forests were positively selected in both populations. Selection of forests in Pantanal was less evident than in Iberá, probably due to the much higher availability of forests in the Brazilian site, with 38?53% of the landscape classified as good-to-high likelihood in Pantanal compared to only 4% in Iberá. Mean home range size of males was larger in Iberá (32.50 ± 7.64 km2) than in Pantanal (14.07 ± 1.97 km2), whereas home range sizes of females were similar in both areas (9.75 ± 1.74 km2 in Iberá; 9.62 ± 2.00 km2 in Pantanal). Results of this study suggest that model validation with geographically independent data is a useful tool to compare reintroduced and wild populations and to identify resources or landscape attributes that are important for a given species, even when these resources are abundant or highly available. Fil: Di Blanco, Yamil Edgardo. Centro de Investigaciones del Bosque Atlántico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; Argentina Fil: Desbiez, Arnaud L. J.. Royal Zoological Society Of Scotland; Reino Unido. Instituto de Pesquisas Ecológicas; Brasil Fil: Jiménez Pérez, Ignacio. The Conservation Land Trust; Estados Unidos Fil: Kluyber, Danilo. Instituto de Pesquisas Ecológicas; Brasil. Royal Zoological Society Of Scotland; Reino Unido Fil: Favero Massocato, Gabriel. Instituto de Pesquisas Ecológicas; Brasil. Houston Zoo; Estados Unidos Fil: Di Bitetti, Mario Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Universidad Nacional de Misiones. Instituto de Biología Subtropical; Argentina. Centro de Investigaciones del Bosque Atlántico; Argentina
- Published
- 2017
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