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Article ; Online: Soil disturbance impacts on ant‐diaspore multilayer networks in a tropical savanna

Coelho, Paula Grandi L. / Antonini, Yasmine / da Costa, Fernanda Vieira

Ecological Entomology. 2023 June, v. 48, no. 3 p.295-306

2023

Abstract: 1. Current anthropogenic disturbances have changed natural environments, broadly impacting ecosystem services and functions. Here, the authors focused on the secondary dispersal of diaspores by ants, which serve an important ecological function in the ... ...

Abstract	1. Current anthropogenic disturbances have changed natural environments, broadly impacting ecosystem services and functions. Here, the authors focused on the secondary dispersal of diaspores by ants, which serve an important ecological function in the natural regeneration of degraded habitats. 2. The authors experimentally studied the effects of vegetation suppression and soil disturbance on (i) diaspore removal, (ii) the quality of secondary removal, and (iii) the structure of interaction networks between ants and diaspores. The authors tested whether the disturbance affected the species richness of seed removers, diaspore removal rate, removal distance and time, and removal effectiveness. Additionally, the authors tested whether the structure of ant‐diaspore networks, that is, specialisation, modularity and robustness, is altered by soil disturbance. To do that, the authors studied three degraded and three preserved areas in the Brazilian Cerrado. 3. The authors observed 25 ant species interacting with the diaspores. Disturbance did not affect ant species richness, removal distance or removal rate, but ants took twice as long to remove the diaspores in the preserved habitat. The frequency of interaction networks was higher in the preserved habitat, and the effectiveness of species in removing the diaspores differed between habitats. Surprisingly, the authors observed that ants considered effective dispersers mostly occurred in degraded habitats, highlighting the potential of myrmecochory in the regeneration of impacted environments. 4. The findings point to the potential of ants in acting as secondary seed dispersal, improving the restoration of areas highly impacted by soil disturbance. Moreover, this study contributes to understanding the effects of anthropogenic disturbances on ecological interactions and ecosystem functions.
Keywords	cerrado ; disturbed soils ; ecological function ; ecosystems ; entomology ; habitats ; myrmecochory ; natural regeneration ; savannas ; species richness
Language	English
Dates of publication	2023-06
Size	p. 295-306.
Publishing place	Blackwell Publishing Ltd
Document type	Article ; Online
Note	JOURNAL ARTICLE
ZDB-ID	196048-9
ISSN	0307-6946
ISSN	0307-6946
DOI	10.1111/een.13221
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Gender differences in traditional knowledge of useful plants in a Brazilian community.

da Costa, Fernanda Vieira / Guimarães, Mariana Fernandes Monteiro / Messias, Maria Cristina Teixeira Braga

PloS one

2021 Volume 16, Issue 7, Page(s) e0253820

Abstract: Genders differ in traditional ecological knowledge (TEK) about plants, but how gender influences TEK sharing is still poorly understood. Here, we examined how gender is associated with the diversity, transmission, and structure of TEK. We tested whether ... ...

Abstract	Genders differ in traditional ecological knowledge (TEK) about plants, but how gender influences TEK sharing is still poorly understood. Here, we examined how gender is associated with the diversity, transmission, and structure of TEK. We tested whether women and men differ in terms of plant knowledge (species richness, α-diversity), knowledge heterogeneity (β-diversity), and in the structure of social-ecological networks they form. The study was carried out in a suburban community in the city of Ouro Preto, Southeastern, Brazil. Using the snow-ball technique, semi-structured interviews, guided tours, and participant observation, we gathered information from 33 women and 33 men in the community. We collected information about their culture, social-economic profiles, and plant knowledge from which we identified 291 plant species in 10 use categories. Overall, our results indicated that the cognition and sharing of ethnobotanical knowledge are structured by gender. Women rated better in their plant knowledge repertory (greater α-diversity), while plant knowledge among men was more heterogeneous (greater β-diversity), suggesting less information sharing among them. We observed that the network among women is more connected, exhibited greater information sharing, with a greater number of central individuals, who likely provide the cohesion and maintenance of TEK in the community. Our findings indicate how social-ecological networks can provide insights and information to unveil social patterns of knowledge transmission. Understanding how TEK is fostered and shared among community members will favor better planning of ethnobotanical studies, as well as inform decision-makers about strategies for the conservation of plant TEK.
MeSH term(s)	Adult ; Aged ; Brazil ; Female ; Humans ; Interviews as Topic ; Knowledge ; Male ; Middle Aged ; Plants/classification ; Sex Factors ; Urban Population ; Young Adult
Language	English
Publishing date	2021-07-28
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1932-6203
ISSN (online)	1932-6203
DOI	10.1371/journal.pone.0253820
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Article ; Online: Is Methylprednisolone Acetate-Related Insulin Resistance Preventable in Cats?

Leal, Karine Marchioro / Rocha, Mariana Barcelos / Varela, Fernanda Venzon / Rodrigues, Luana / Furtado, Priscila Viau / da Costa, Fernanda Vieira Amorim / Pöppl, Álan Gomes

Topics in companion animal medicine

2022 Volume 49, Page(s) 100648

Abstract: Methylprednisolone acetate (MPA) is often prescribed to cats despite being recognized eventually as diabetogenic. To assess MPA-related insulin resistance and evaluate the efficacy of metformin or an obesity and diabetes mellitus (O&D) adjuvant diet as ... ...

Abstract	Methylprednisolone acetate (MPA) is often prescribed to cats despite being recognized eventually as diabetogenic. To assess MPA-related insulin resistance and evaluate the efficacy of metformin or an obesity and diabetes mellitus (O&D) adjuvant diet as protective factors, a randomized clinical trial was conducted with 28 owned cats undergoing glucocorticoid therapy. A single MPA dose of 20 mg intramuscularly was administered to each cat. Controls (n = 10) received only MPA. In the diet group (n = 9), replacement of their habitual diet by ad-libitum feeding of a feline commercial O&D diet (Equilíbrio O&D, Total Alimentos ADM) was made. In the metformin group (n = 9), metformin chlorhydrate 25mg/cat PO/q24h was administered for 30 days. All patients were clinically evaluated at baseline (T0), day 15 (T15), and day 30 (T30) and blood draw for complete blood count, serum biochemistry, and determination of insulin concentrations. Fasting Insulin Sensitivity Index (SI), Amended Insulin to Glucose Ratio (AIGR), Homeostatic Model Assessment of Insulin Resistance (HOMA-IR), and Homeostatic Model Assessment of beta-cell function (HOMA-B) were calculated based on fasting glycemia and insulinemia. All groups showed significantly higher levels (P < .05) of neutrophils, albumin, glucose, cholesterol, triglycerides, and serum insulin at T15. Patients in the metformin group showed also higher SI, AIGR, and HOMA-IR results at T15. Also, at T15, reduced levels (P < .05) of eosinophils, lymphocytes, and creatinine were documented in all groups. An MPA single dose induced changes in insulin sensitivity in cats; however, neither metformin nor O&D feeding used in this study was effective as protective factors against MPA-related insulin resistance.
MeSH term(s)	Animals ; Blood Glucose ; Cat Diseases/drug therapy ; Cat Diseases/prevention & control ; Cats ; Hypoglycemic Agents/therapeutic use ; Insulin Resistance/physiology ; Insulins ; Metformin/therapeutic use ; Methylprednisolone Acetate
Chemical Substances	Blood Glucose ; Hypoglycemic Agents ; Insulins ; Methylprednisolone Acetate (43502P7F0P) ; Metformin (9100L32L2N)
Language	English
Publishing date	2022-02-22
Publishing country	United States
Document type	Journal Article ; Randomized Controlled Trial, Veterinary
ISSN	1946-9837
ISSN (online)	1946-9837
DOI	10.1016/j.tcam.2022.100648
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Article ; Online: The cyclic interaction between daytime behavior and the sleep behavior of laboratory dogs.

Schork, Ivana Gabriela / Manzo, Isabele Aparecida / De Oliveira, Marcos Roberto Beiral / da Costa, Fernanda Vieira / Young, Robert John / de Azevedo, Cristiano Schetini

Scientific reports

2022 Volume 12, Issue 1, Page(s) 478

Abstract: Sleep deprivation has been found to negatively affect an individual´s physical and psychological health. Sleep loss affects activity patterns, increases anxiety-like behaviors, decreases cognitive performance and is associated with depressive states. The ...

Abstract	Sleep deprivation has been found to negatively affect an individual´s physical and psychological health. Sleep loss affects activity patterns, increases anxiety-like behaviors, decreases cognitive performance and is associated with depressive states. The activity/rest cycle of dogs has been investigated before, but little is known about the effects of sleep loss on the behavior of the species. Dogs are polyphasic sleepers, meaning the behavior is most observed at night, but bouts are also present during the day. However, sleep can vary with ecological and biological factors, such as age, sex, fitness, and even human presence. In this study, kennelled laboratory adult dogs' sleep and diurnal behavior were recorded during 24-h, five-day assessment periods to investigate sleep quality and its effect on daily behavior. In total, 1560 h of data were analyzed, and sleep metrics and diurnal behavior were quantified. The relationship between sleeping patterns and behavior and the effect of age and sex were evaluated using non-parametric statistical tests and GLMM modelling. Dogs in our study slept substantially less than previously reported and presented a modified sleep architecture with fewer awakenings during the night and almost no sleep during the day. Sleep loss increased inactivity, decreased play and alert behaviors, while increased time spent eating during the day. Males appeared to be more affected by sleep fragmentation than females. Different age groups also experienced different effects of sleep loss. Overall, dogs appear to compensate for the lack of sleep during the night by remaining inactive during the day. With further investigations, the relationship between sleep loss and behavior has the potential to be used as a measure of animal welfare.
MeSH term(s)	Animal Welfare ; Animals ; Behavior, Animal ; Circadian Rhythm ; Disease Models, Animal ; Dogs ; Female ; Humans ; Laboratories ; Male ; Rest ; Sleep ; Sleep Deprivation/physiopathology ; Sleep Deprivation/psychology ; Sleep Quality
Language	English
Publishing date	2022-01-10
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-021-04502-2
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Article: Is Methylprednisolone Acetate-Related Insulin Resistance Preventable in Cats?

Leal, Karine Marchioro / Rocha, Mariana Barcelos / Varela, Fernanda Venzon / Rodrigues, Luana / Furtado, Priscila Viau / da Costa, Fernanda Vieira Amorim / Pöppl, Álan Gomes

Topics in companion animal medicine. 2022,

2022

Abstract	Methylprednisolone acetate (MPA) is often prescribed to cats despite being recognized eventually as diabetogenic. To assess MPA-related insulin resistance and evaluate the efficacy of metformin or an obesity and diabetes mellitus (O&D) adjuvant diet as protective factors, a randomized clinical trial was conducted with 28 owned cats undergoing glucocorticoid therapy. A single MPA dose of 20 mg intramuscularly was administered to each cat. Controls (n = 10) received only MPA. In the diet group (n = 9), replacement of their habitual diet by ad-libitum feeding of a feline commercial O&D diet (Equilíbrio O&D, Total Alimentos ADM) was made. In the metformin group (n = 9), metformin chlorhydrate 25mg/cat PO/q24h was administered for 30 days. All patients were clinically evaluated at baseline (T0), day 15 (T15), and day 30 (T30) and blood draw for complete blood count, serum biochemistry, and determination of insulin concentrations. Fasting Insulin Sensitivity Index (SI), Amended Insulin to Glucose Ratio (AIGR), Homeostatic Model Assessment of Insulin Resistance (HOMA-IR), and Homeostatic Model Assessment of beta-cell function (HOMA-B) were calculated based on fasting glycemia and insulinemia. All groups showed significantly higher levels (P < .05) of neutrophils, albumin, glucose, cholesterol, triglycerides, and serum insulin at T15. Patients in the metformin group showed also higher SI, AIGR, and HOMA-IR results at T15. Also, at T15, reduced levels (P < .05) of eosinophils, lymphocytes, and creatinine were documented in all groups. An MPA single dose induced changes in insulin sensitivity in cats; however, neither metformin nor O&D feeding used in this study was effective as protective factors against MPA-related insulin resistance.
Keywords	adjuvants ; albumins ; blood glucose ; blood serum ; cats ; cholesterol ; creatinine ; diabetes mellitus ; diet ; eosinophils ; glucocorticoids ; glucose ; hyperinsulinemia ; insulin ; insulin resistance ; medicine ; metformin ; methylprednisolone ; neutrophils ; obesity ; pets ; randomized clinical trials ; therapeutics
Language	English
Publishing place	Elsevier Inc.
Document type	Article
Note	Pre-press version
ISSN	1938-9736
DOI	10.1016/j.tcam.2022.100648
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Generalized and fatal felid alphaherpesvirus-1 natural infection with liver involvement in a feline leukaemia virus-positive adult cat: a case report

Slaviero, Mônica / Ehlers, Luiza Presser / de Almeida, Bruno Albuquerque / Pereira, Paula Reis / Panziera, Welden / da Costa, Fernanda Vieira Amorim / Pavarini, Saulo Petinatti / Sonne, Luciana

Vet Res Commun. 2022 Dec., v. 46, no. 4 p.1319-1324

2022

Abstract: Generalized and fatal felid alphaherpesvirus-1 (FeHV-1) natural infection with liver involvement is rarely reported in cats, and the occurrence of herpesvirus viraemia with internal organ histologic lesions in adult cats is unknown. A 1.5-year-old cat, ... ...

Abstract	Generalized and fatal felid alphaherpesvirus-1 (FeHV-1) natural infection with liver involvement is rarely reported in cats, and the occurrence of herpesvirus viraemia with internal organ histologic lesions in adult cats is unknown. A 1.5-year-old cat, female, mixed breed, positive for feline leukaemia virus (FeLV) presented in a veterinary teaching hospital with sneezing, nasal discharge, anorexia, and diarrhoea after two weeks, evolving to inspiratory dyspnoea. Complete blood count and serum biochemistry analysis showed marked leukopenia and thrombocytopenia. After clinical worsening and lack of treatment response, the cat was euthanized. Pathological findings included hepatic necrosis, fibrinonecrotic tracheitis, and bronchointerstitial pneumonia. Marked amounts of coccobacillary bacteria were observed covering the necrotic tracheal and bronchial mucosa, at the cytoplasm of alveolar macrophages, and free in alveoli lumen, mimicking a primary bacterial tracheitis and pneumonia. Both lung and tracheal bacteria exhibited marked immunolabeling in anti-Escherichia coli immunohistochemistry. In addition, rare epithelial cells of bronchi contained round, eosinophilic, intranuclear viral inclusion bodies (4–7 µm) that marginate the chromatin, characteristic of FeHV-1 infection. Strong multifocal anti-FeHV-1 immunolabeling was observed in necrotic epithelial cells of the liver, trachea, and lungs. Generalized herpesvirus infection with the occurrence of acute hepatic necrosis and severe respiratory illness is a potential differential diagnosis in FeLV-positive cats with respiratory signs. The immunodepression in these cats probably favours a FeHV-1 viraemia in addition to the development of opportunistic bacterial infections, such as Escherichia coli, and it is associated with a poor outcome.
Keywords	Escherichia coli ; Feline leukemia virus ; Herpesvirales ; Herpesviridae infections ; adults ; anorexia ; blood ; blood chemistry ; case studies ; cats ; chromatin ; cytoplasm ; diarrhea ; females ; hospitals ; immunohistochemistry ; leukemia ; leukopenia ; liver ; lungs ; macrophages ; mucosa ; necrosis ; nose ; pneumonia ; thrombocytopenia ; tracheitis ; viremia
Language	English
Dates of publication	2022-12
Size	p. 1319-1324.
Publishing place	Springer Netherlands
Document type	Article ; Online
ZDB-ID	406735-6
ISSN	1573-7446 ; 0165-7380
ISSN (online)	1573-7446
ISSN	0165-7380
DOI	10.1007/s11259-022-09977-6
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Article: Positive effects of ants on host trees are critical in years of low reproduction and not influenced by liana presence

Soares, Glória Ramos / Anjos, Diego V / da Costa, Fernanda Vieira / Lourenço, Giselle Martins / Campos, Ricardo Ildefonso / Ribeiro, Sérvio Pontes

Basic and applied ecology. 2022 May 16,

2022

Abstract: Tropical tree-climbing lianas form paths that benefit foraging of dominant ants which might protect the host tree against herbivores. In contrast, lianas are often associated with negative effects on growth and reproduction of host trees due to light ... ...

Abstract	Tropical tree-climbing lianas form paths that benefit foraging of dominant ants which might protect the host tree against herbivores. In contrast, lianas are often associated with negative effects on growth and reproduction of host trees due to light obstruction, structural stress and other negative effects. It is unclear if dominant ants could mitigate the negative effects of lianas on host plants. We investigated how lianas and carton nest ants (Azteca chartifex) affected herbivory and reproductive structures of the host tree Byrsonima sericea. Considering 68 trees, almost half of them were naturally colonized by A. chartifex nests (32 trees). We removed lianas from half of the trees (34), establishing a factorial sampling design between A. chartifex and liana presence. We sampled ants and leaf herbivory before and after removing lianas, and measured plant fitness in two consecutive years after removing lianas. Liana removal had no effect on A. chartifex foraging and on leaf herbivory and flower-fruit conversion of host plants. However, A. chartifex decreased leaf herbivory and increased B. sericea flower-fruit conversion irrespective of lianas presence. A noticeable positive effect of ants was detected only in the second year of the experiment, consistently on all plants at each experimental level. The reproductive conditions of the first year resulted in most plants with more than 75% flower-to-fruit conversion success, regardless of the present of A. chartifex, a success sustained only on those ant-colonized plants in the second year. Our results contribute to understanding multi-trophic interactions in tropical forest canopies as we demonstrated i) that dominant arboreal ants can benefit plants even in a non-obligatory interaction and ii) that the influence of lianas on its host tree is context-dependent, presenting even neutral effects depending on habitat type and species involved.
Keywords	Azteca ; Byrsonima ; applied ecology ; habitats ; herbivores ; leaves ; nests ; reproduction ; tropical forests
Language	English
Dates of publication	2022-0516
Publishing place	Elsevier GmbH
Document type	Article
Note	Pre-press version
ZDB-ID	2026806-3
ISSN	1439-1791
ISSN	1439-1791
DOI	10.1016/j.baae.2022.05.008
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Article ; Online: Pathology in Practice.

Vieira, Aline Bomfim / Werner, Juliana / da Costa, Fernanda Vieira Amorim / de Carvalho E Suzano, Sara Maria / Nobre E Castro, Maria Cristina / de Alencar, Nayro Xavier

Journal of the American Veterinary Medical Association

2022 Volume 259, Issue S2, Page(s) 1–4

Abstract: In collaboration with the American College of Veterinary Pathologists. ...

Abstract	In collaboration with the American College of Veterinary Pathologists.
MeSH term(s)	Animals ; Humans ; Pathology, Veterinary ; United States ; Veterinarians
Language	English
Publishing date	2022-04-11
Publishing country	United States
Document type	Journal Article
ZDB-ID	390811-2
ISSN	1943-569X ; 0003-1488
ISSN (online)	1943-569X
ISSN	0003-1488
DOI	10.2460/javma.20.03.0111
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Article ; Online: Generalized and fatal felid alphaherpesvirus-1 natural infection with liver involvement in a feline leukaemia virus-positive adult cat: a case report.

Slaviero, Mônica / Ehlers, Luiza Presser / de Almeida, Bruno Albuquerque / Pereira, Paula Reis / Panziera, Welden / da Costa, Fernanda Vieira Amorim / Pavarini, Saulo Petinatti / Sonne, Luciana

Veterinary research communications

2022 Volume 46, Issue 4, Page(s) 1319–1324

Abstract	Generalized and fatal felid alphaherpesvirus-1 (FeHV-1) natural infection with liver involvement is rarely reported in cats, and the occurrence of herpesvirus viraemia with internal organ histologic lesions in adult cats is unknown. A 1.5-year-old cat, female, mixed breed, positive for feline leukaemia virus (FeLV) presented in a veterinary teaching hospital with sneezing, nasal discharge, anorexia, and diarrhoea after two weeks, evolving to inspiratory dyspnoea. Complete blood count and serum biochemistry analysis showed marked leukopenia and thrombocytopenia. After clinical worsening and lack of treatment response, the cat was euthanized. Pathological findings included hepatic necrosis, fibrinonecrotic tracheitis, and bronchointerstitial pneumonia. Marked amounts of coccobacillary bacteria were observed covering the necrotic tracheal and bronchial mucosa, at the cytoplasm of alveolar macrophages, and free in alveoli lumen, mimicking a primary bacterial tracheitis and pneumonia. Both lung and tracheal bacteria exhibited marked immunolabeling in anti-Escherichia coli immunohistochemistry. In addition, rare epithelial cells of bronchi contained round, eosinophilic, intranuclear viral inclusion bodies (4-7 µm) that marginate the chromatin, characteristic of FeHV-1 infection. Strong multifocal anti-FeHV-1 immunolabeling was observed in necrotic epithelial cells of the liver, trachea, and lungs. Generalized herpesvirus infection with the occurrence of acute hepatic necrosis and severe respiratory illness is a potential differential diagnosis in FeLV-positive cats with respiratory signs. The immunodepression in these cats probably favours a FeHV-1 viraemia in addition to the development of opportunistic bacterial infections, such as Escherichia coli, and it is associated with a poor outcome.
MeSH term(s)	Cats ; Female ; Animals ; Leukemia Virus, Feline ; Tracheitis/pathology ; Tracheitis/veterinary ; Viremia/veterinary ; Viremia/pathology ; Hospitals, Animal ; Hospitals, Teaching ; Necrosis/pathology ; Necrosis/veterinary ; Liver/pathology ; Cat Diseases
Language	English
Publishing date	2022-07-20
Publishing country	Netherlands
Document type	Case Reports ; Journal Article
ZDB-ID	406735-6
ISSN	1573-7446 ; 0165-7380
ISSN (online)	1573-7446
ISSN	0165-7380
DOI	10.1007/s11259-022-09977-6
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Article ; Online: First molecular characterization of Sarcocystis neurona causing meningoencephalitis in a domestic cat in Brazil.

Hammerschmitt, Márcia Elisa / Henker, Luan Cleber / Lichtler, Juliana / da Costa, Fernanda Vieira Amorim / Soares, Rodrigo Martins / Llano, Horwald Alexander Bedoya / Pavarini, Saulo Petinatti

Parasitology research

2020 Volume 119, Issue 2, Page(s) 675–682

Abstract: Sarcocystis neurona is the main agent associated with equine protozoal myeloencephalitis (EPM). Apart from horses, S. neurona has been occasionally described causing neurologic disease in several other terrestrial animals as well as mortality in marine ... ...

Abstract	Sarcocystis neurona is the main agent associated with equine protozoal myeloencephalitis (EPM). Apart from horses, S. neurona has been occasionally described causing neurologic disease in several other terrestrial animals as well as mortality in marine mammals. Herein, we describe the clinical, pathological, and molecular findings of a fatal case of S. neurona-associated meningoencephalitis in a domestic cat. The causing agent was analyzed by multilocus genotyping, confirming the presence of S. neurona DNA in the tissue samples of the affected animal. Significant molecular differences were found in relation to S. neurona isolates detected in other regions of the Americas. In addition, the parasite was identical to Sarcocystis sp. identified in opossum sporocysts in Brazil at molecular level, which suggests that transmission of. S. neurona in Brazil might involve variants of the parasite different from those found elsewhere in the Americas. Studies including more samples of S. neurona would be required to test this hypothesis, as well as to assess the impact of this diversity.
MeSH term(s)	Animals ; Brazil ; Cat Diseases/parasitology ; Cats ; Central Nervous System Protozoal Infections/veterinary ; DNA, Protozoan/genetics ; Encephalomyelitis/parasitology ; Horse Diseases/parasitology ; Horses ; Meningoencephalitis/parasitology ; Opossums/parasitology ; Sarcocystis/genetics ; Sarcocystis/isolation & purification ; Sarcocystosis/veterinary
Chemical Substances	DNA, Protozoan
Keywords	covid19
Language	English
Publishing date	2020-01-04
Publishing country	Germany
Document type	Case Reports ; Journal Article
ZDB-ID	284966-5
ISSN	1432-1955 ; 0932-0113 ; 0044-3255
ISSN (online)	1432-1955
ISSN	0932-0113 ; 0044-3255
DOI	10.1007/s00436-019-06570-w
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