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Variation in mammal ecological patterns in response to seasonality in a Brazilian tropical dry forest

  • Maria Luísa Falcão EMAIL logo , Paulo Henrique Marinho ORCID logo and Eduardo Martins Venticinque
Published/Copyright: February 19, 2025
Mammalia
From the journal Mammalia Volume 89 Issue 3

Abstract

The scientific question addressed in this study is how mammals in the Caatinga dry forest of northeast Brazil adapt to seasonal variations, specifically regarding their activity and occupancy patterns and species richness and composition. To investigate, we deployed camera traps across Furna Feia National Park during both wet and dry seasons in 2018. We utilized methods such as rarefaction curves, circular statistics, and occupancy models to analyze data collected from 44 and 40 sampling points during the wet and dry seasons, respectively. We obtained 485 records of 11 mammal species from six orders and nine families, including endangered species like Leopardus tigrinus and Herpailurus yagouaroundi. Notably, we captured the first photographic evidence of a free-living Dicotyles tajacu in Rio Grande do Norte state. Results indicate that some mammals adjust their activity to avoid peak heat, particularly during the dry season, with no significant change in species richness but with important changes in occupancy and relative abundance between seasons. Our research expects to shed light on mammalian ecology in seasonally dry environments, contributing to species management and conservation efforts.

Keywords: activity patterns; Caatinga; ecology; mammals; seasonality
Corresponding author: Maria Luísa Falcão, Department of Ecology, Centro de Biociências Universidade Federal do – R. das Biociências, s/n – Lagoa Nova, Natal, Rio Grande do Norte 59078-97X0, Brazil, E-mail:

Funding source: Mohamed bin Zayed Species Conservation Fund

Award Identifier / Grant number: 172516360

Acknowledgments

We are grateful to ICMBIO Mossoró (especially Leonardo Brasil, José Iatagan and Lúcia Guaraldo), Projeto Caatinga Potiguar (WCS/UFRN), and João Bernadino, Alex, Marlus, Renato, and Rielson for the field support and assistance. EMV received CNPq producivity grant (308543/2021-1).

  1. Research ethics: Field work was done with System of Authorization and Information on Biodiversity (SISBIO) permission number: 62261-1. All procedures were in accordance with the national laws.

  2. Informed consent: Not applicable.

  3. Author contributions: M.L.M.F., P.D.H.M and E.M.V analyzed, interpreted the information and wrote the manuscript. P.D.H.M collected the data in the sampling field. The authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Use of Large Language Models, AI and Machine Learning Tools: Only used in few paragraphs to improve language.

  5. Conflict of interests: The authors declare that they have no conflicts of interest regarding this article.

  6. Research funding: We are grateful to the Mohamed bin Zayed Species Conservation Fund (172516360) for the financial support. We also would like to thank Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), who financed Eduardo Martins Venticinque (308040/2017-1) and Maria Luísa Falcão.

  7. Data availability: The data will be available on request to the corresponding author. The data will be deposited in a database soon.

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Supplementary Material

This article contains supplementary material (https://doi.org/10.1515/mammalia-2024-0066).

Received: 2024-05-08
Accepted: 2025-01-22
Published Online: 2025-02-19
Published in Print: 2025-05-26

© 2025 Walter de Gruyter GmbH, Berlin/Boston

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  4. Ecology
  5. New ecological aspects of the pacarana (Dinomys branickii) in southeastern Peru
  6. Variation in mammal ecological patterns in response to seasonality in a Brazilian tropical dry forest
  7. Niche partitioning between two marsupials inhabiting the Yungas of Northwestern Argentina: overlapping diets in non-overlapping lifestyles?
  8. Characteristics of tree hollows used by Nilgiri marten Martes gwatkinsii in the Western Ghats, India
  9. How much do we know about wild canid (Carnivora: Canidae) ectoparasites in Mexico? Current state of knowledge
  10. First and new records of albinism and leucism in Jaculus orientalis and Jaculus jaculus (Rodentia, Dipodidae)
  11. Biogeography
  12. The first record of the long-eared hedgehog (Hemiechinus auritus Gmelin, 1770) in Lebanon
  13. First record of Andersen’s leaf-nosed bat, Hipposideros gentilis, and hairy-faced myotis, Myotis annectans from Bangladesh
  14. Ethology
  15. Temperature and pups influence daytime roosting behavior of the great fruit-eating bat, Artibeus lituratus, in an urban southern Brazilian habitat
  16. Taxonomy/Phylogeny
  17. On the phylogenetic position of Rhinolophus sakejiensis (Chiroptera: Rhinolophidae)
  18. New geographical records of Phyllostomidae (Chiroptera) for the Brazilian Caatinga, with taxonomic notes
  19. Complete mitogenome of Prionailurus bengalensis alleni and taxonomic revisions of leopard cat subspecies
  20. Karyotype of the lesser gymnure Hylomys maxi and comparison with its Vietnamese congeners (Mammalia: Eulipotyphla: Erinaceidae)
https://doi.org/10.1515/mammalia-2024-0066
Keywords for this article
activity patterns; Caatinga; ecology; mammals; seasonality

Articles in the same Issue

  1. Frontmatter
  2. Conservation
  3. Tickell’s bat, Hesperoptenus tickelli (Blyth, 1851), in Sri Lanka with new records after 58 years and roosting ecology notes
  4. Ecology
  5. New ecological aspects of the pacarana (Dinomys branickii) in southeastern Peru
  6. Variation in mammal ecological patterns in response to seasonality in a Brazilian tropical dry forest
  7. Niche partitioning between two marsupials inhabiting the Yungas of Northwestern Argentina: overlapping diets in non-overlapping lifestyles?
  8. Characteristics of tree hollows used by Nilgiri marten Martes gwatkinsii in the Western Ghats, India
  9. How much do we know about wild canid (Carnivora: Canidae) ectoparasites in Mexico? Current state of knowledge
  10. First and new records of albinism and leucism in Jaculus orientalis and Jaculus jaculus (Rodentia, Dipodidae)
  11. Biogeography
  12. The first record of the long-eared hedgehog (Hemiechinus auritus Gmelin, 1770) in Lebanon
  13. First record of Andersen’s leaf-nosed bat, Hipposideros gentilis, and hairy-faced myotis, Myotis annectans from Bangladesh
  14. Ethology
  15. Temperature and pups influence daytime roosting behavior of the great fruit-eating bat, Artibeus lituratus, in an urban southern Brazilian habitat
  16. Taxonomy/Phylogeny
  17. On the phylogenetic position of Rhinolophus sakejiensis (Chiroptera: Rhinolophidae)
  18. New geographical records of Phyllostomidae (Chiroptera) for the Brazilian Caatinga, with taxonomic notes
  19. Complete mitogenome of Prionailurus bengalensis alleni and taxonomic revisions of leopard cat subspecies
  20. Karyotype of the lesser gymnure Hylomys maxi and comparison with its Vietnamese congeners (Mammalia: Eulipotyphla: Erinaceidae)
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