DSpace Coleção:
https://repositorio.ifgoiano.edu.br/handle/prefix/140
2023-01-27T23:27:04ZMAMÍFEROS CARNÍVOROS DAS UNIDADES DE CONSERVAÇÃO DO BRASIL: COMPOSIÇÃO, RIQUEZA E CONSERVAÇÃO
https://repositorio.ifgoiano.edu.br/handle/prefix/3302
Título: MAMÍFEROS CARNÍVOROS DAS UNIDADES DE CONSERVAÇÃO DO BRASIL: COMPOSIÇÃO, RIQUEZA E CONSERVAÇÃO
Autor(es): Bernardes, Patricia Rezende
Primeiro Orientador: Hannibal, Wellington
Abstract: The biodiversity loss caused by human actions that lead to environmental degradation profoundly affects the natural ecosystems maintenance, then the creation of Conservation Units (CUs) is one of the strategies that have been implemented to mitigate human actions that cause damage to natural environments. Carnivorous mammals are negatively affected by habitat loss, hunting and roadkill resulting from the use and modification of landscapes, which highlights the importance of conservation units. This study was carried out to investigate the importance of Conservation Units in Brazil in the carnivores’ conservation. Between August and December 2021, a survey was carried out on published documents that addressed the topic related to carnivores in Conservation Units in Brazil. The search was performed by combining the words: mammal*, carnivore, felidae, canidae, mustelidae, mephitidae, procyonidae AND “protected area”, “conservation unit” AND “Cerrado”, “Brazilian Savanna”, “Amazon*”, “Amazon rainforest”, “Wetlands”, “Caatinga”, “Atlantic forest”, “Pampa”. The searches for publications were made through the Web of Science, Scopus and Google Scholar databases, which cover the main articles published in the world. All analyzes were performed in the R Program, version 4.0.2 (R Core Team, 2020). A total of 86 documents were found, distributed in 73 different CUs, of which 49 are Integral Protection and 24 are of sustainable use, 16 of these still do not have a management plan. Twenty-six species of carnivorous mammals were present in the CUs listed in this study. The species S. venaticus, C. brachyurus, A. microtis, L. vetulus, L. guttulus, L. wiedii, L. tigrinus, L. geoffroyi, P. onca, H. yagouaroundi and P. brasiliensis that were recorded, are part from the Official List of Endangered Brazilian Fauna. The size of the area did not influence the species richness, but it influenced the composition of mammals.
Editor: Instituto Federal Goiano
Tipo: Dissertação2022-10-31T00:00:00ZECTOPARASITOS DE PEQUENOS MAMÍFEROS NÃO VOADORES DO BRASIL: TENDÊNCIAS, LACUNAS E UM ESTUDO DE CASO
https://repositorio.ifgoiano.edu.br/handle/prefix/3298
Título: ECTOPARASITOS DE PEQUENOS MAMÍFEROS NÃO VOADORES DO BRASIL: TENDÊNCIAS, LACUNAS E UM ESTUDO DE CASO
Autor(es): Linhares, Thaynara S
Primeiro Orientador: Hannibal, Wellington L
Primeiro Membro da Banca: Carvalho, Raimundo W
Segundo Membro da Banca: Fox, Eduardo G P
Abstract: Brazil is one of the countries that has one of the greatest biodiversity in the world, harboring a immense variety of species. However, biodiversity conservation becomes an increasing challenge in the face of increasing deforestation and degradation of ecosystems due to urban anthropic expansion. The proximity of human beings to animals is another worrying factor, since wild animals, such as small mammals of the order Rodentia (rodents) and order Didelphimorphia (marsupials), are easily found in wild and urban environments and act as hosts for ectoparasites that can transmit a number of zoonotic pathogens, important for public health. Thus, we have structured the dissertation into two chapters, which aim to: i- investigate trends and gaps in scientific production on the relationship between ectoparasites and their hosts belonging to the orders mentioned above and ii- describe the species of ectoparasites found in small mammals in a fragmented landscape of the southern state of Goiás, central Brazil. For the first chapter, we searched for documents published in the main databases Web of Science and Scopus. We found 602 published documents, with emphasis on the United States of America, Brazil and Israel, countries in which researchers published in high-impact international journals focused on the health area. Among Brazilian production, more than half was conducted in the Atlantic Forest biome. In the second chapter, we highlight the order Mesostigmata (n = 153 ectoparasites distributed in eight taxa), with the Laelapidae family being the most frequent, with emphasis on the species Gigantolaelaps wolffsohni. The ectoparasite-host relationship has been investigated, mainly with a focus on health, with ecological knowledge in the background, and this has implications for biodiversity conservation. Small mammals in the region studied are parasitized by an important diversity of ectoparasites. Despite its hotspot status, the Cerrado has been poorly investigated regarding the life history of these mammals. Thus, it is noteworthy that this is the first study involving the relationship ectoparasites-small non-flying mammals in this part of Brazil.
Editor: Instituto Federal Goiano
Tipo: Dissertação2022-10-27T00:00:00ZCARACTERIZAÇÃO DOS DETERMINANTES DA MANUTENÇÃO DO STATUS HÍDRICO EM PLANTAS DECÍDUAS E SEMPRE-VERDES NO CERRADO BRASILEIRO
https://repositorio.ifgoiano.edu.br/handle/prefix/2893
Título: CARACTERIZAÇÃO DOS DETERMINANTES DA MANUTENÇÃO DO STATUS HÍDRICO EM PLANTAS DECÍDUAS E SEMPRE-VERDES NO CERRADO BRASILEIRO
Autor(es): Martins, Ana Claudia
Primeiro Orientador: Farnese, Fernanda dos Santos
Abstract: The Cerrado is characterized as a seasonally dry tropical domain, with two well-defined seasons – the rainy season and the intense dry season. Although the species in this domain are acclimatized to the occurrence of seasonal drought, climate change models predict an increase in the frequency and intensity of droughts for Cerrado region in the coming years, which may result in water restriction events that exceed the thresholds of plants tolerance, causing the death and replacement of species. Tree species in this domain show different patterns of deciduousness, being defined as evergreen or deciduous. These phenological patterns are indicated as strategies for acclimatization to environmental conditions and deciduousness is often pointed out as a crucial mechanism for maintaining water potential. Therefore, the objective of this study was to evaluate the main determinants of water potential in deciduous and evergreen species from the Brazilian Cerrado during the dry and rainy seasons. The study evaluated 10 plant species in the Botanical Garden of the Instituto Federal Goiano Campus Rio Verde, being 5 evergreen and 5 deciduous species, with 4 adult replicates for each species. The collections were carried out over 3 months, two months during the dry season (May and August) and one during the rainy season (December). The month of May was defined as the beginning of the drought, August as the end of the drought and December as the rainy season. Environmental (soil moisture, air humidity and temperature, and rainfall) and plant analyzes were carried out, being these physiological (gas exchange) and water relations (water potential; residual transpiration - gcopae gstem, hydraulic conductivity of the leaf, curves pressure-volume and stem capacitance). Evergreen and deciduous species showed different survival strategies to seasonal drought and reflected in a differential capacity to maintain water potential. The deciduous strategy consisted of decreasing gs, and with that, they decreased photosynthesis, demonstrated ability to transport water and release stored water, maintaining greater Kleaf, CFT, CTLP and Cacaulinar. Evergreens maintained gs and photosynthesis. While evergreens prioritized the maintenance of the photosynthetic process and invested in non-stomatal strategies to reduce water loss, deciduous plants invested in processes related to the transport and release of water.
Editor: Instituto Federal Goiano
Tipo: Dissertação2022-08-26T00:00:00ZANÁLISES FISIOLÓGICAS E HISTOPATOLÓGICAS DA INTERAÇÃO ENTRE OS FITOPATÓGENOS Fusarium equiseti E Diaporthe ueckerae EM PLANTAS DE Gossypium hirsutum
https://repositorio.ifgoiano.edu.br/handle/prefix/2866
Título: ANÁLISES FISIOLÓGICAS E HISTOPATOLÓGICAS DA INTERAÇÃO ENTRE OS FITOPATÓGENOS Fusarium equiseti E Diaporthe ueckerae EM PLANTAS DE Gossypium hirsutum
Autor(es): Marques, Matheus Mendonça de Souza
Primeiro Orientador: Vitorino, Luciana Cristina
Abstract: Some fungi isolated from leaves of specimens of Gossypium hirsutum showed symptoms of
already known diseases, however, when identified, they were not exactly the etiological
agents of these diseases, but from the species Fusarium equiseti and Diaporthe ueckerae. The
concern about undescribed diseases is worrisome, since the diagnosis vetoed by producers
who are used to the field can be wrong, causing direct or indirect damage at various levels of
the environment. Therefore, this project aimed to describe physiological and/or anatomical
responses to attack by identified phytopathogens, aiming to better understand plant-pathogen
biological interactions and accumulate information to indirectly enhance disease recognition
and diagnosis for more effective decision-making, reduction in disease lethality and
optimizing management techniques. For this, to measure stress and physiological damage
generated in plants affected by these phytopathogens, analyzes were carried out to measure
levels of photosynthetic pigments, measurement of chlorophyll fluorescence parameters and
analyzes for gas exchange rates with the aid of IRGA; scanning electron microscopy;
statistical analyzes were performed using ANOVA and Tukey (0.05<P). Several physiological
alterations were observed in plants inoculated by Fusarium equiseti and by Diaporthe
ueckerae, mainly in plants inoculated in the root part of plants in the phenological phase
characterized by the presence of fruits, followed by plants in the flower bud phase.
Editor: Instituto Federal Goiano
Tipo: Dissertação2022-08-29T00:00:00Z