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Article ; Online: Case study: Visual barriers reduce pacing in captive tigers.

Meulendijks, Rick / Weimar, Michou M / Kappelhof, Jeroen / Cunha, Filipe C R

2024 Volume 43, Issue 2, Page(s) 199–204

Abstract: Captive large felines are prone to abnormal repetitive behaviors like pacing, which are associated with welfare issues. Visual contact without the opportunity to engage in appropriate behavior is known to increase pacing. To better understand the ... ...

Abstract	Captive large felines are prone to abnormal repetitive behaviors like pacing, which are associated with welfare issues. Visual contact without the opportunity to engage in appropriate behavior is known to increase pacing. To better understand the relationship between pacing and conspecific visual contact, we investigated this effect by conducting a barrier experiment on a male-female pair of Sumatran tigers (Panthera tigris sumatrae) in Rotterdam Zoo, the Netherlands. The tigers were exposed to four consecutive housing treatments: (i) housed in the same enclosure (baseline), (ii) housed in separate enclosures with visual contact, (iii) housed in separate enclosures without visual contact, and (iv) housed in the same enclosure after the separation. We used focal and scan sampling to measure pacing and recorded the number of visitors. Moreover, we applied scan sampling to measure activity. Overall, our results indicate that the tigers paced significantly more when housed in separate enclosures with conspecific visual contact. Moreover, our results suggest that limiting visual contact between neighboring tigers can mitigate pacing. Implementing these findings in tiger husbandry and enclosure design has the potential to improve animal welfare zoo populations of large felines.
MeSH term(s)	Female ; Male ; Animals ; Cats ; Tigers ; Animals, Zoo ; Animal Welfare
Language	English
Publishing date	2024-01-12
Publishing country	United States
Document type	Journal Article
ZDB-ID	1499116-0
ISSN	1098-2361 ; 0733-3188
ISSN (online)	1098-2361
ISSN	0733-3188
DOI	10.1002/zoo.21819
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Who do you trust? Wild birds use social knowledge to avoid being deceived.

Cunha, Filipe C R / Griesser, Michael

Science advances

2021 Volume 7, Issue 22

Abstract: Many species give deceptive warning calls, enabled by the high risk of ignoring them. In Siberian jays, a territorial, group-living bird, individuals give warning calls toward perched predators and mob them. However, intruding neighbors can emit these ... ...

Abstract	Many species give deceptive warning calls, enabled by the high risk of ignoring them. In Siberian jays, a territorial, group-living bird, individuals give warning calls toward perched predators and mob them. However, intruding neighbors can emit these warning calls in the absence of predators to access food, but breeders often ignore these calls. Playback field experiments show that breeders flee sooner and return later after warning calls of former group members than those of neighbors or unknown individuals. Thus, breeders respond appropriately only to warning calls of previous cooperation partners. This mechanism facilitates the evolution and maintenance of communication vulnerable to deceptive signaling. This conclusion also applies to human language because of its cooperative nature and thus, its vulnerability to deception.
Language	English
Publishing date	2021-05-28
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2810933-8
ISSN	2375-2548 ; 2375-2548
ISSN (online)	2375-2548
ISSN	2375-2548
DOI	10.1126/sciadv.aba2862
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Article ; Online: Primary thyroid lymphoma: a case of postoperative diagnosis in a patient with toxic multinodular goiter.

Nunes Coelho, Margarida / Cunha, Filipe / Almeida, Joana Isabel / Santos, Tatiana / Marques, Isabel

Porto biomedical journal

2024 Volume 9, Issue 2, Page(s) 246

Language	English
Publishing date	2024-03-08
Publishing country	United States
Document type	Journal Article
ISSN	2444-8672
ISSN (online)	2444-8672
DOI	10.1097/j.pbj.0000000000000246
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Case study

Meulendijks, Rick / Weimar, Michou M. / Kappelhof, Jeroen / Cunha, Filipe C.R.

Zoo Biology (2024) ; ISSN: 0733-3188

Visual barriers reduce pacing in captive tigers

2024

Abstract	Captive large felines are prone to abnormal repetitive behaviors like pacing, which are associated with welfare issues. Visual contact without the opportunity to engage in appropriate behavior is known to increase pacing. To better understand the relationship between pacing and conspecific visual contact, we investigated this effect by conducting a barrier experiment on a male-female pair of Sumatran tigers (Panthera tigris sumatrae) in Rotterdam Zoo, the Netherlands. The tigers were exposed to four consecutive housing treatments: (i) housed in the same enclosure (baseline), (ii) housed in separate enclosures with visual contact, (iii) housed in separate enclosures without visual contact, and (iv) housed in the same enclosure after the separation. We used focal and scan sampling to measure pacing and recorded the number of visitors. Moreover, we applied scan sampling to measure activity. Overall, our results indicate that the tigers paced significantly more when housed in separate enclosures with conspecific visual contact. Moreover, our results suggest that limiting visual contact between neighboring tigers can mitigate pacing. Implementing these findings in tiger husbandry and enclosure design has the potential to improve animal welfare zoo populations of large felines.
Keywords	large felines ; welfare ; zoo
Language	English
Publishing country	nl
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: SEMINAR

Ribeiro da Cunha, Filipe / Chauhan, Aneesh

Exploring nature-positive food production landscapes

2023

Abstract: A bio-positive food production system requires a balanced interplay of pest and prey, for a successful production system. However, quantifying the impact of a bio-diverse ecosystem on pest management and farm production is a major challenge in ecological ...

Abstract	A bio-positive food production system requires a balanced interplay of pest and prey, for a successful production system. However, quantifying the impact of a bio-diverse ecosystem on pest management and farm production is a major challenge in ecological farming systems. The main issue is the measurement of biodiversity. It is often too time-consuming, too expensive, or both. In the last decade, automated ecoaccoustic surveying has emerged as a relevant technology for large-scale monitoring of natural as well as urban habitats. The automatization of such systems would yield continuous and inexpensive data, allowing actions to be adjusted on a micro-temporal scale. For that matter machine learning, including deep learning, is being increasingly applied to acoustic data, to automatically identify a range of sounds, from different bird species, to amphibians, grasshoppers, and humans. This seminar was organized to bring together researchers from Wageningen University and Research, NIOOW, and Universidad Federal da Viçosa to share their research and future perspectives.SEMINAR: Exploring nature-positive food production landscapes 09h00 Opening09h10 Leonardo Lopes (Federal University of Viçosa)“Long-term studies in the Neotropics: a short story about birds”09h40 Lessando Gontijo (Federal University of Viçosa)“Stop and listen to those songs: using ecoacoustics to estimate birds’ contribution to natural pest control in sustainable agriculture.” 10h00 Coffee-break 10h10 Aneesh Chauhan (WUR – Vision and Roobtics)“Measuring biodiversity with vision and sounds” 10h40 Dan Rustia – Guest Speaker (WUR – Vision and Robotics) “Enabling sustainable pest management through edge computing and AI” 11h00 Coffee-break 11h10 Filipe Cunha –(WUR – Behavioural Ecology)“Takes two to tango: making collaborations possible probable” 11h30 Mieke de Wit (WUR – Wildcard Biodiversity Coordination)Closing Remarks
Keywords	Life Science
Publishing country	nl
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Who do you trust? Wild birds use social knowledge to avoid being deceived

Cunha, Filipe C.R. / Griesser, Michael

Science Advances

2021 Volume 7, Issue 22

Abstract	Many species give deceptive warning calls, enabled by the high risk of ignoring them. In Siberian jays, a territorial, group-living bird, individuals give warning calls toward perched predators and mob them. However, intruding neighbors can emit these warning calls in the absence of predators to access food, but breeders often ignore these calls. Playback field experiments show that breeders flee sooner and return later after warning calls of former group members than those of neighbors or unknown individuals. Thus, breeders respond appropriately only to warning calls of previous cooperation partners. This mechanism facilitates the evolution and maintenance of communication vulnerable to deceptive signaling. This conclusion also applies to human language because of its cooperative nature and thus, its vulnerability to deception.
Keywords	Life Science
Language	English
Publishing country	nl
Document type	Article ; Online
ZDB-ID	2810933-8
ISSN	2375-2548
ISSN	2375-2548
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Low stress hyperglycemia ratio predicts worse prognosis in diabetic acute heart failure patients.

Cunha, Filipe M / Carreira, Marta / Ferreira, Inês / Bettencourt, Paulo / Lourenço, Patrícia

Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology

2023 Volume 42, Issue 5, Page(s) 433–441

Abstract: Introduction: Acute blood glucose but not glycated hemoglobin (HbA1c) predicts poor outcome in acute heart failure (HF). The stress hyperglycemia ratio (SHR) has been proposed as a prognostic predictor in various clinical settings.: Objectives: We ... ...

Abstract	Introduction: Acute blood glucose but not glycated hemoglobin (HbA1c) predicts poor outcome in acute heart failure (HF). The stress hyperglycemia ratio (SHR) has been proposed as a prognostic predictor in various clinical settings. Objectives: We assessed the prognostic implications of the SHR in acute HF patients with and without diabetes. Methods: We performed a retrospective analysis of an acute HF registry conducted between 2009 and 2010. Estimated average glucose (eAG) was calculated as (28.7×HbA1c)-46.7 and SHR as acute blood glucose divided by eAG. The primary endpoint was all-cause mortality. Follow-up was three months. Patients were grouped by SHR tertiles (≤0.88, 0.89-1.16, and >1.16). Cox regression analysis was used to test the association of SHR (cut-off 0.88) with all-cause mortality. Analysis was stratified according to the presence of diabetes. Multivariate models were built accounting for acute blood glucose and for eAG (models 1 and 2, respectively). Results: We studied 599 patients, mean age 76±12 years, of whom 62.1% had reduced ejection fraction and 50.9% had diabetes. Median acute blood glucose, eAG and SHR were 136 (107-182) mg/dl, 131 (117-151) mg/dl, and 1.02 (0.20-3.34), respectively. During follow-up 102 (17.0%) died. In patients with diabetes, those in the lowest SHR tertile had a hazard ratio (HR) of 2.24 (95% CI: 1.05-5.22) (model 1) and 2.34 (1.25-4.38) (model 2). In patients without diabetes, the HR of three-month death in the lowest SHR tertile was 0.71 (95% CI: 0.36-1.39) and 1.02 (0.58-1.81). Significant interaction was observed between diabetes and SHR. Conclusions: In HF patients with diabetes, a SHR ≤0.88 was associated with a more than twofold higher three-month mortality risk. No such association was found in non-diabetic patients. The presence of diabetes influences the association of the SHR with mortality.
MeSH term(s)	Humans ; Middle Aged ; Aged ; Aged, 80 and over ; Blood Glucose ; Glycated Hemoglobin ; Retrospective Studies ; Hyperglycemia ; Diabetes Mellitus ; Prognosis ; Heart Failure/complications ; Risk Factors
Chemical Substances	Blood Glucose ; Glycated Hemoglobin
Language	Portuguese
Publishing date	2023-01-09
Publishing country	Portugal
Document type	Journal Article
ZDB-ID	632718-7
ISSN	2174-2030 ; 0870-2551 ; 0304-4750
ISSN (online)	2174-2030
ISSN	0870-2551 ; 0304-4750
DOI	10.1016/j.repc.2022.02.013
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Article ; Online: Molt strategy and delayed plumage maturation in the Lined Seedeater

Ferreira, Dalila / Figueira, Luiza / Cunha, Filipe / Lopes, Leonardo E.

Journal of field ornithology

2023 Volume 94, Issue 3

Abstract: Lined Seedeaters Sporophila lineola, an intra-tropical migratory songbird, exhibit extensive phenotypic variation, with characteristic black-and-white male and brownish female plumages. In this study, we investigated whether variation in male plumage ... ...

Abstract	Lined Seedeaters Sporophila lineola, an intra-tropical migratory songbird, exhibit extensive phenotypic variation, with characteristic black-and-white male and brownish female plumages. In this study, we investigated whether variation in male plumage represents delayed plumage maturation, as reported for many other Sporophila seedeaters. We used data on molt and plumage from a seven-year-long study of color-banded Lined Seedeaters in southeastern Brazil. We also gathered molt and plumage data from museum collections and citizen-science platforms to identify which molts occur outside the breeding grounds. Our findings show that Lined Seedeaters follow a complex basic strategy, but the possibility that some individuals exhibit a complex alternate strategy, which is a common strategy among congeners, cannot be ruled out. Preformative molt and fresh formative plumage were recorded within the breeding grounds in the last months of the breeding season. Prebasic molt also start on the breeding grounds and probably continue during migration to the wintering grounds. Observed phenotypic variation in plumage of Lined Seedeater males is a product of delayed plumage maturation. Breeding males in female-like plumage are formative individuals in their first breeding season. All monitored males acquired black-and-white definitive plumage after their first breeding season, during the second pre-basic molt, but we found limited evidence that some individuals may retain the brownish plumage for more than one cycle. Descriptions presented here advance our understanding of Sporophila molt strategies that can be used in future studies focusing on the evolutionary and ecological underpinnings of plumage variation.
Keywords	Sporophila lineola ; Thraupidae ; age ; breeding ; female-like plumage
Subject code	590
Language	English
Publishing country	nl
Document type	Article ; Online
ZDB-ID	2159269-X
ISSN	1557-9263 ; 0273-8570
ISSN (online)	1557-9263
ISSN	0273-8570
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Male plumage colouration predicts female reproductive investment and nestling survival in a colour dimorphic tropical songbird

de Fátima Ferreira, Dalila / Cunha, Filipe C.R. / Lopes, Leonardo Esteves

Avian Biology Research

2023 Volume 16, Issue 2

Abstract: In sexually colour dimorphic bird species, males can exhibit phenotypic variation, with males breeding in either dull female-like plumage or brightly coloured plumage. Two contradictory hypotheses predict that the male phenotype variation can influence ... ...

Abstract	In sexually colour dimorphic bird species, males can exhibit phenotypic variation, with males breeding in either dull female-like plumage or brightly coloured plumage. Two contradictory hypotheses predict that the male phenotype variation can influence the female investment in a given breeding attempt. Whereas females usually prefer males in bright coloured plumage, the “differential allocation hypothesis” predicts that females should invest more in their reproductive output when mating with them; while the “compensatory investment hypothesis” predicts that females should invest more when mating with non-preferred males. To test those predictions, we analysed reproductive data for two consecutive breeding seasons (2018–2019 and 2019–2020) of Lined Seedeaters Sporophila lineola. S. lineola is a socially monogamous songbird species in which males exhibit two breeding phenotypes, a black-and-white plumage being the most common, and a less common female-like brownish plumage. Our findings show that females mated with brownish males have a higher reproductive investment (i.e., egg volume) than those mated with black-and-white males. Despite the lower investment of females in egg volume, our results showed that black-and-white males have a higher nestling survival, producing more hatchings and fledglings per season than brownish males, which could suggest a higher fitness. Our findings indicate that investment allocation on the eggs and offspring survival rates can be attributed to the plumage colour of males.
Keywords	Sporophila lineola ; egg volume ; nesting success ; sexual selection
Subject code	590
Language	English
Publishing country	nl
Document type	Article ; Online
ZDB-ID	2445727-9
ISSN	1758-1567 ; 1758-1559
ISSN (online)	1758-1567
ISSN	1758-1559
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Revealing migration schedule and potential breeding grounds of Lined Seedeaters using citizen science data

Cunha, Filipe C. R. / Lopes, Leonardo Esteves / Selezneva, Antonina

Emu - Austral Ornithology. 2022 Oct. 02, v. 122, no. 3-4 p.167-175

2022

Abstract: The Lined Seedeater (Sporophila lineola) is a small intra-tropical migrant songbird. However, little is known about its breeding and wintering grounds, or migratory habits. To investigate potentially distinct breeding populations and the migratory ... ...

Abstract	The Lined Seedeater (Sporophila lineola) is a small intra-tropical migrant songbird. However, little is known about its breeding and wintering grounds, or migratory habits. To investigate potentially distinct breeding populations and the migratory schedule of Lined Seedeaters we analysed its spatial and temporal distribution using published breeding records, museum vouchers, and data from citizen science projects (eBird and WikiAves). Our findings suggest that there are three main breeding areas: northern Argentina and north-western Paraguay, south-eastern Brazil, and north-eastern Brazil, and that the breeding season seems to be restricted to November through May, with slight differences in timing among these three areas. The species winters in the northern part of South America (mostly in grassland areas) and maybe also in the Amazonia. Moreover, rainfall predicts the latitudinal and longitudinal movements of Lined Seedeaters, with the migratory movements associated with an increase in rainfall. Taken together, these results provide a first comprehensive overview on the migration of Lined Seedeater, calling for further empirical field studies. Understanding intra-tropical migratory patterns is paramount to comprehend the potential impacts of environmental change in tropical ecosystems.
Keywords	citizen science ; emus ; grasslands ; migratory behavior ; museums ; ornithology ; rain ; songbirds ; Amazonia ; Argentina ; Brazil ; Paraguay ; Intra-tropical migration ; migration drivers ; neotropical birds Sporophila lineola ; rainfall
Language	English
Dates of publication	2022-1002
Size	p. 167-175.
Publishing place	Taylor & Francis
Document type	Article ; Online
ISSN	1448-5540
DOI	10.1080/01584197.2022.2105235
Database	NAL-Catalogue (AGRICOLA)

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