Daiana Souza Machado

Dr. Daiana Souza Machado


Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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27 August 2020 in Animals
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Journal Article
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Isadora TravnikIsadora Travnik
Isadora Travnik
Daiana MachadoDaiana Machado
Daiana Machado
Luana GonçalvesLuana Gonçalves
Luana Gonçalves
Maria Camila CeballosMaria Camila Ceballos
Maria Camila Ceballos
Aline Cristina Sant'AnnaAline Cristina Sant'Anna
Aline Cristina Sant'Anna
Temperament can be defined as interindividual differences in behavior that are stable over time and in different contexts. The terms ‘personality’, ‘coping styles’, and ‘behavioral syndromes’ have also been used to describe these interindividual differences. In this review, the main aspects of cat temperament research are summarized and discussed, based on 43 original research papers published between 1986 and 2020. We aimed to present current advances in cat temperament research and identify potential gaps in knowledge, as well as opportunities for future research. Proximate mechanisms, such as genetic bases of temperament, ontogenesis and developmental factors, physiological mechanisms, and relationships with morphology, were reviewed. Methods traditionally used to assess the temperament of cats might be classified based on the duration of procedures (short- vs. long-term measures) and the nature of data recordings (coding vs. rating methods). The structure of cat temperament is frequently described using a set of behavioral dimensions, primarily based on interindividual variations in cats’ responses toward humans and conspecifics (e.g., friendliness, sociability, boldness, and aggressiveness). Finally, cats’ temperaments have implications for human–animal interactions and the one welfare concept. Temperament assessment can also contribute to practical aspects, for example, the adoption of shelter cats.

15 April 2020 in PLOS ONE
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Journal Article
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Daiana MachadoDaiana Machado
Daiana Machado
POPaula Mazza Barbosa Oliveira
Paula Mazza Barbosa Oliveira
JMJuliana Clemente Machado
Juliana Clemente Machado
Maria Camila CeballosMaria Camila Ceballos
Maria Camila Ceballos
Aline Cristina Sant'AnnaAline Cristina Sant'Anna
Aline Cristina Sant'Anna
Identifying and preventing the occurrence of separation-related problems (SRP) in companion animals are relevant to animal welfare and the quality of human-pet interactions. The SRP are defined as a set of behaviors and physiological signs displayed by the animal when separated from its attachment person. In cats, SRP has been insufficiently studied. Thus, the objective of this study was to develop a questionnaire for cat owners which identifies behaviors that may indicate SRP, as well as relates the occurrence of SRP to the management practices applied in the sampled cats. The associations of SRP with cats’ characteristics, as well as owner, environmental, and management traits were investigated. The questionnaire was developed based on the scientific literature about separation anxiety syndrome in dogs and a few papers in cats, and it was completed by 130 owners of 223 cats. Analysis of owners’ answers was done through categorization and acquisition of relative frequencies of each response category, followed by Fisher’s exact test, chi-square tests in contingency table and Multiple Correspondence Analysis. Among the sampled animals, 13.45% (30 / 223) met at least one of the behavioral criteria we used to define SRP. Destructive behavior was the most frequently reported behavior (66.67%, 20 / 30), followed by excessive vocalization (63.33%, 19 / 30), urination in inappropriate places (60.00%, 18 / 30), depression-apathy (53.33%, 16 / 30), aggressiveness (36.67%, 11 / 30) and agitation-anxiety (36.67%, 11 / 30) and, in lower frequency, defecation in inappropriate places (23.33%, 7 / 30). The occurrence of SRP was associated with the number of females living in the residence (P = 0.01), with not having access to toys (P = 0.04), and no other animal residing in the house (P = 0.04). Separation-related problems in domestic cats are difficult to identify due to the limited amount of knowledge regarding the issue. The questionnaire developed in this study supported identification of the main behaviors likely related to SRP in cats and could be used as a starting point for future research.

5 December 2020 in Animals
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Journal Article
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Daiana MachadoDaiana Machado
Daiana Machado
Luana GonçalvesLuana Gonçalves
Luana Gonçalves
Rogério Ribeiro VicentiniRogério Ribeiro Vicentini
Rogério Ribeiro Vicentini
Maria Camila CeballosMaria Camila Ceballos
Maria Camila Ceballos
Aline Cristina Sant'AnnaAline Cristina Sant'Anna
Aline Cristina Sant'Anna
The quality of cat care practices depends in part on the type of management applied, which either positively or negatively impacts cat welfare. This study investigated whether the type of cat management (indoor vs. outdoor) was related to other cat care practices adopted by cat owners, associated with the quality of human-cat relationships and cat welfare. An online survey was distributed via social networks. Descriptive statistics, categorical Principal Component Analysis, Fisher’s Exact test and Chi-square test in contingency table were applied. A total of 16,302 cat owners returned the survey. Most Brazilian owners reported indoor management of their cats; this was related to owners living in apartments, more frequent use of cat care practices, and more interactions with their pets. Outdoor management was related to cats living in houses or farms, sleeping outdoors or around the neighborhood, and owners had fewer interaction with their pets. In conclusion, owners practicing indoor management seemed to be closer to their cats than owners reporting outdoor management. However, obesity and owner-reported behavioral problems were associated with indoor management.

12 January 2025 in Animals
Verified
Journal Article
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Luana GonçalvesLuana Gonçalves
Luana Gonçalves
Daiana MachadoDaiana Machado
Daiana Machado
MBMaria Eduarda Caçador Branco
Maria Eduarda Caçador Branco
GFGiovanne Ambrosio Ferreira
Giovanne Ambrosio Ferreira
CDChristopher Dickman
Christopher Dickman
Aline Cristina Sant'AnnaAline Cristina Sant'Anna
Aline Cristina Sant'Anna
Domestic cats (Felis catus) currently occupy the 38th place in the Global Invasive Species Database. Free-roaming cats potentially have broad-ranging impacts on wildlife, occupying most terrestrial environments globally as house pets, strays, or feral animals. In Australia, for example, cats are responsible for the decline in many vertebrate populations and extinction of several native mammals. However, in Brazil, few studies have explored either direct impacts of predation on wildlife, or other indirect impacts, such as competition for resources, niche overlap, hybridization, and disease transmission. In this review, we summarize and discuss 34 original research reports, published between 2001 and 2020, on impacts of free-roaming cats in Brazil. We briefly contextualize the history of cat domestication and present that, in Brazil, more studies have focused on the potential of free-roaming cats to transmit disease than to exert impacts via predation or competition on wildlife. More studies were conducted in Brazilian mainland areas (n = 23)—notably in Atlantic Forest—than on islands (n = 11). The review highlights potential impacts of cats on wildlife. We also discuss how control management strategies can affect the welfare of domestic cats, identifying potential knowledge gaps as well as opportunities for future research. Finally, understanding risks of cat predation is necessary to inform future measures to mitigate impacts on wildlife, without neglecting cat welfare.

5 July 2019 in Revista Acadêmica Ciência Animal
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Journal Article
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Daiana MachadoDaiana Machado
Daiana Machado
JMJuliana Clemente Machado
Juliana Clemente Machado
JSJosé Olimpio Tavares De Souza
José Olimpio Tavares De Souza
Aline Cristina Sant'AnnaAline Cristina Sant'Anna
Aline Cristina Sant'Anna
A permissão do livre acesso à rua e outros ambientes externos aos gatos domésticos (Felis silvestris catus) por seus tutores pode gerar muitos problemas. Os transtornos causados pela presença destes animais vão desde sérios impactos à fauna local das regiões com populações de gatos ferais e semi-domiciliados, até a disseminação de doenças graves. Gatos que não possuem áreas de vida delimitadas por seus tutores estão susceptíveis a sofrerem maus-tratos, contrair e disseminar patógenos e parasitos, sendo muitas das doenças veiculadas por eles, tidas como zoonoses. Portanto, o objetivo deste trabalho foi oferecer elementos e informações precisas que embasem uma reflexão acerca da importância de um manejo apropriado e tutela responsável do gato doméstico. Um método eficaz para solucionar os problemas associados ao livre acesso dos gatos à rua é a delimitação do espaço usado pelos mesmos. Animais que permanecem dentro de casa, em geral, estão seguros e com potencial de apresentar níveis adequados de bem-estar, além de não causarem impactos à fauna silvestre nem no bem-estar de outros animais domésticos.

10 September 2017 in Revista Brasileira de Zoociências
Verified
Journal Article
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Daiana MachadoDaiana Machado
Daiana Machado
ASAline Cristina Sant'ANna
Aline Cristina Sant'ANna
Entende-se por síndrome de ansiedade por separação (SAS) o conjunto de respostas fisiológicas e comportamentais, exibidas isoladamente ou em associação, por um dado animal quando na ausência de uma figura de apego. A SAS tornou-se um problema comportamental comumente reportado nos animais de companhia, sendo descritos sérios impactos sobre a qualidade da interação humano-animal e o bem-estar animal, em especial, dos cães. Por sua vez, para os gatos, tal temática tem sido abordada ainda de forma muito tímida, embora existam relatos de sua ocorrência na literatura científica. Os sinais comportamentais frequentemente relacionados à SAS são: reatividade anômala, vocalização excessiva, eliminação de fezes e / ou de urina em locais inadequados, comportamentos destrutivos e autolimpeza excessiva. A identificação e compreensão dos sintomas relacionados a este distúrbio, bem como, dos fatores que predispõe os animais a desenvolverem SAS, são de suma importância. Neste artigo será apresentada uma revisão sobre os principais fatores de risco já relacionados com a ocorrência de ansiedade por separação em cães e gatos domésticos, dentre eles, algumas características do próprio animal, do tutor e do ambiente de criação. Serão apontadas lacunas no conhecimento atual sobre a SAS, a fim de estimular mais pesquisas sobre este tema, que possam contribuir para a melhoraria do bem-estar, tanto dos animais, quanto das pessoas que com eles convivem.