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Route Planning Process by the Endangered Black Lion Tamarin in Different Environmental Contexts

Felipe Bufalo Orcid Logo, Olivier Kaisin Orcid Logo, Anne‐Sophie de Almeida e Silva Orcid Logo, Rodrigo Gonçalves Amaral Orcid Logo, Yness Messaoudi Orcid Logo, Mirela Alcolea Orcid Logo, Eduardo M. Zanette Orcid Logo, Gabriel Pavan Sabino Orcid Logo, Luca Borger Orcid Logo, Laurence Culot Orcid Logo

American Journal of Primatology, Volume: 87, Issue: 1, Start page: e23702

Swansea University Author: Luca Borger Orcid Logo

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DOI (Published version): 10.1002/ajp.23702

Abstract

Daily, primates take a variety of decisions to establish why, when, and where to move. However, little is known about the factors influencing and shaping primate daily routes. We investigated the decision-making processes linked to route planning in four groups of black lion tamarins (BLT—Leontopith...

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Published in: American Journal of Primatology
ISSN: 0275-2565 1098-2345
Published: Wiley 2025
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URI: https://cronfa.swan.ac.uk/Record/cronfa68515
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We studied these endangered platyrrhines within four distinct environmental contexts across their natural distribution (i.e., a continuous forest, a 500-ha forest fragment, a 100-ha forest fragment, and a riparian forest). We used the Change Point Test to identify the points of significant direction change (CPs), which can be considered travel goals along BLT daily trajectories and are key components of travel planning. Considering the high importance of fruits and gum in BLT's diet, we predicted that feeding trees would be the main factor shaping their paths (feeding CPs-FCPs). Also, given previous evidence that platyrrhines use landmarks (i.e., characteristic features from the terrain) as nodes in route network systems (i.e., points of intersection connecting habitual route segments), we expected part of CPs to be located close to the intersection points and to be associated with &#x201C;locomotion&#x201D; behavior (LCPs). Analyzing 61 daily paths in four forest fragments, our results showed that BLTs planned routes to reach feeding trees, which primarily determined path orientation. As hypothesized, locomotion was the most frequent behavior observed in CPs, but only in the continuous and riparian forests, with LCPs located as close to intersections as FCPs. Interestingly, these two areas presented the most extreme values (i.e., higher and lower values, respectively) in terms of used area, richness of resources and distances traveled between fruit-feeding trees. Our results suggest that BLTs plan daily routes conditional on the environmental context to reach travel goals, likely to maximize route efficiency to reach out of sight feeding trees.</abstract><type>Journal Article</type><journal>American Journal of Primatology</journal><volume>87</volume><journalNumber>1</journalNumber><paginationStart>e23702</paginationStart><paginationEnd/><publisher>Wiley</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>0275-2565</issnPrint><issnElectronic>1098-2345</issnElectronic><keywords>Change point test, decision&#x2010;making process, forest fragment, Leontopithecus chrysopygus, movement ecology, route networks</keywords><publishedDay>1</publishedDay><publishedMonth>1</publishedMonth><publishedYear>2025</publishedYear><publishedDate>2025-01-01</publishedDate><doi>10.1002/ajp.23702</doi><url/><notes/><college>COLLEGE NANME</college><department>Biosciences Geography and Physics School</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>BGPS</DepartmentCode><institution>Swansea University</institution><apcterm>Not Required</apcterm><funders>This work was supported by the S&#xE3;o Paulo Research Foundation (FAPESP-Young Investigator Grant #2014/14739-0 and #2021/06668-0 to Laurence Culot). 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spelling 2025-02-28T10:50:35.3615822 v2 68515 2024-12-10 Route Planning Process by the Endangered Black Lion Tamarin in Different Environmental Contexts 8416d0ffc3cccdad6e6d67a455e7c4a2 0000-0001-8763-5997 Luca Borger Luca Borger true false 2024-12-10 BGPS Daily, primates take a variety of decisions to establish why, when, and where to move. However, little is known about the factors influencing and shaping primate daily routes. We investigated the decision-making processes linked to route planning in four groups of black lion tamarins (BLT—Leontopithecus chrysopygus). We studied these endangered platyrrhines within four distinct environmental contexts across their natural distribution (i.e., a continuous forest, a 500-ha forest fragment, a 100-ha forest fragment, and a riparian forest). We used the Change Point Test to identify the points of significant direction change (CPs), which can be considered travel goals along BLT daily trajectories and are key components of travel planning. Considering the high importance of fruits and gum in BLT's diet, we predicted that feeding trees would be the main factor shaping their paths (feeding CPs-FCPs). Also, given previous evidence that platyrrhines use landmarks (i.e., characteristic features from the terrain) as nodes in route network systems (i.e., points of intersection connecting habitual route segments), we expected part of CPs to be located close to the intersection points and to be associated with “locomotion” behavior (LCPs). Analyzing 61 daily paths in four forest fragments, our results showed that BLTs planned routes to reach feeding trees, which primarily determined path orientation. As hypothesized, locomotion was the most frequent behavior observed in CPs, but only in the continuous and riparian forests, with LCPs located as close to intersections as FCPs. Interestingly, these two areas presented the most extreme values (i.e., higher and lower values, respectively) in terms of used area, richness of resources and distances traveled between fruit-feeding trees. Our results suggest that BLTs plan daily routes conditional on the environmental context to reach travel goals, likely to maximize route efficiency to reach out of sight feeding trees. Journal Article American Journal of Primatology 87 1 e23702 Wiley 0275-2565 1098-2345 Change point test, decision‐making process, forest fragment, Leontopithecus chrysopygus, movement ecology, route networks 1 1 2025 2025-01-01 10.1002/ajp.23702 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Not Required This work was supported by the São Paulo Research Foundation (FAPESP-Young Investigator Grant #2014/14739-0 and #2021/06668-0 to Laurence Culot). Felipe Bufalo received a fellowship from the São Paulo Research Foundation (FAPESP #2023/01760-0), from Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES #88881.846203/2023-01) and from the Brazilian National Council for Scientific and Technological Development (CNPq: #133172/2018-0 and #443489/2020-3). Olivier Kaisin received funding from the National Fund for Scientific Research (FRS-FNRS, Belgium). Anne-Sophie Almeida e Silva received a fellowship from CNPq (#141813/2017-2) and a Small Grant from the Rufford Foundation (#29108-1). Rodrigo Gonçalves Amaral received a fellowship from FAPESP (#2019/11102-5 and #2023/13054-3) and from (CAPES). Eduardo M. Zanette received fellowships from CNPq (#130909/2020-3) and FAPESP (#2020/11129-8 and #2021/10284-2). Laurence Received a Research Productivity Fellowship from CNPq (#314964/2021-5). 2025-02-28T10:50:35.3615822 2024-12-10T11:20:18.1594269 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Felipe Bufalo 0000-0002-2621-9858 1 Olivier Kaisin 0000-0002-4826-131x 2 Anne‐Sophie de Almeida e Silva 0000-0002-9057-7393 3 Rodrigo Gonçalves Amaral 0000-0002-2263-2610 4 Yness Messaoudi 0000-0001-5754-1420 5 Mirela Alcolea 0000-0002-0840-7310 6 Eduardo M. Zanette 0000-0002-3097-467x 7 Gabriel Pavan Sabino 0000-0003-1284-8781 8 Luca Borger 0000-0001-8763-5997 9 Laurence Culot 0000-0002-3353-0134 10
title Route Planning Process by the Endangered Black Lion Tamarin in Different Environmental Contexts
spellingShingle Route Planning Process by the Endangered Black Lion Tamarin in Different Environmental Contexts
Luca Borger
title_short Route Planning Process by the Endangered Black Lion Tamarin in Different Environmental Contexts
title_full Route Planning Process by the Endangered Black Lion Tamarin in Different Environmental Contexts
title_fullStr Route Planning Process by the Endangered Black Lion Tamarin in Different Environmental Contexts
title_full_unstemmed Route Planning Process by the Endangered Black Lion Tamarin in Different Environmental Contexts
title_sort Route Planning Process by the Endangered Black Lion Tamarin in Different Environmental Contexts
author_id_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2
author_id_fullname_str_mv 8416d0ffc3cccdad6e6d67a455e7c4a2_***_Luca Borger
author Luca Borger
author2 Felipe Bufalo
Olivier Kaisin
Anne‐Sophie de Almeida e Silva
Rodrigo Gonçalves Amaral
Yness Messaoudi
Mirela Alcolea
Eduardo M. Zanette
Gabriel Pavan Sabino
Luca Borger
Laurence Culot
format Journal article
container_title American Journal of Primatology
container_volume 87
container_issue 1
container_start_page e23702
publishDate 2025
institution Swansea University
issn 0275-2565
1098-2345
doi_str_mv 10.1002/ajp.23702
publisher Wiley
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 0
active_str 0
description Daily, primates take a variety of decisions to establish why, when, and where to move. However, little is known about the factors influencing and shaping primate daily routes. We investigated the decision-making processes linked to route planning in four groups of black lion tamarins (BLT—Leontopithecus chrysopygus). We studied these endangered platyrrhines within four distinct environmental contexts across their natural distribution (i.e., a continuous forest, a 500-ha forest fragment, a 100-ha forest fragment, and a riparian forest). We used the Change Point Test to identify the points of significant direction change (CPs), which can be considered travel goals along BLT daily trajectories and are key components of travel planning. Considering the high importance of fruits and gum in BLT's diet, we predicted that feeding trees would be the main factor shaping their paths (feeding CPs-FCPs). Also, given previous evidence that platyrrhines use landmarks (i.e., characteristic features from the terrain) as nodes in route network systems (i.e., points of intersection connecting habitual route segments), we expected part of CPs to be located close to the intersection points and to be associated with “locomotion” behavior (LCPs). Analyzing 61 daily paths in four forest fragments, our results showed that BLTs planned routes to reach feeding trees, which primarily determined path orientation. As hypothesized, locomotion was the most frequent behavior observed in CPs, but only in the continuous and riparian forests, with LCPs located as close to intersections as FCPs. Interestingly, these two areas presented the most extreme values (i.e., higher and lower values, respectively) in terms of used area, richness of resources and distances traveled between fruit-feeding trees. Our results suggest that BLTs plan daily routes conditional on the environmental context to reach travel goals, likely to maximize route efficiency to reach out of sight feeding trees.
published_date 2025-01-01T05:19:57Z
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score 11.089864

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