Population Ecology and Conservation Lab
Demography, dynamics and distribution
Research in our lab is focused on understanding how biotic and abiotic factors influence wild population persistence. For that, we use hierarchical models including mark-recapture and occupancy modeling to obtain estimates of occupancy probability and demographic parameters such as survival probability and abundance of different species.
Publications
(PDF copies available on request or at Research Gate)
2024
33. Oyarzabal, G. & Guimarães, M. 2024. Strands of connection: unraveling livestock grazing effects on orb-weaver spiders. Journal of Insect Conservation 28: 1-10.
2023
32. Oliveira, C; Guimarães, M; Schroder, L; Zagonel-Oliveira, M; Da Silva, GAM; Borges-Martins, M; Danilewicz, D; Prado, JHF; Schossler, V; Botta, S; Secchi, ER; Aquino, FE; Estima, SC; Bester, MN. ; Oliveira, LR. Patterns of occurrence of the sub-Antarctic fur seal Arctocephalus tropicalis (Gray 1872) in Southern Brazil: climatic and environmental associations. Polar Biology 47: 53-71.
31. Procksch, N; Ott, PH; Berchieri, NB; Danilewicz, D; Horota, RK, Kenji, R; Guimarães, M; Zagonel, M; Veronez, M; Oliveira, LR. New data on South American fur seals and sea lions' occupation of the Wildlife Refuge of Ilha dos Lobos, southern Brazil. Journal of the Marine Biological Association of the United Kingdom 103: 1-8.
30. Fries, L; Camana, M; Guimarães, M; Becker, FG. 2023 . Road crossings hinder the movement of a small non-migratory stream fish. Environmental Biology of fishes, 107: 1-17.
29. Procksch, N; Ott, PH; Berchieri, NB; Danilewicz, D; Horota, RK; Guimarães, M; Zagonel, M; Veronez, M; Oliveira, L. 2023. Habitat use by South American fur seals (Arctocephalus australis) and sea lions (Otaria flavescens) in a marine protected area in southern Brazil. Marine Policy, 155: 105693.
2022
28. Banci, KRS; Guimarães, M; Siqueira, LHC; Muscat, E; Sazaim, I; Marques, OAV. 2022. Body shape and diet reflect arboreality degree of five congeneric snakes sympatric in the Atlantic Forest. Biotropica, 54: 1-13.
27. Matias, N; Guimarães, M; Verrastro, L. 2022. Effects of anthropogenic disturbance in the survival of the sand lizard, Liolaemus occipitalis (Squamata: Liolaemidae). Iheringia Serie Zoologia, 112: 1-10.
26. Oliveira, AS; Guimarães, M; Matias, N; Verrastro, L. 2022. How close is danger? Relationship between the distance from an exotic tree plantation and occupancy of an endemic lizard. Austral Ecology, 47: 1286-1295.
2021
25. Oyarzabal, G; Guimarães, M. 2021. Friend and foe? The effects of grassland management on global patterns of spider diversity. Ecological Entomology, 46: 1195-1204.
24. Silveira, SS; Guimarães, M. 2021. The enemy within: consequences of the invasive bullfrog on native anurans. Biological Invasions 23: 373-378.
2020
23. Procksch, N; Grandi, M. F; Ott, PH; Groch, K; Flores, PAC; Zagonel, M; Crespo, EA; Machado, R; Pavez, G; Guimarães, M; Veronez, M; OliveiraVEIRA, LR. 2020. The northernmost haulout site of South American sea lions and fur seals in the western South Atlantic. Scientific Reports 10.
22. Mega, NO; Guimarães, M; Costa, MC; Castro, AC; Paesi, RA; Fucilini, LL; Romanowski, HP. 2020. Population biology and natural history of the grassland butterfly, Euryades corethrus (Papilionidae: Troidini), an endangered species from South American Campos. Journal of Insect Conservation 24: 853-865.
21. Guimarães, M; Correa, DT; Gaiarsa, MP; Kéry, M. 2020. Full-annual demography and seasonal cycles in a resident vertebrate. PeerJ 8: e8658.
2019
20. Vargas, ND; Guimarães, M; Caorsi, V; Bordignon, DW; Borges-Martins, M. 2019. An experimental assessment of the anti-predatory function of the green dorsal coloration in poisonous Neotropical red-bellied toads. Journal of Zoology, 310: 80-92.
19. Liz, AV; Santos, V; Ribeiro, T; Guimarães, M; Verrastro, L. 2019. Are lizards sensitive to anomalous seasonal temperatures? Long-term thermobiological variability in a subtropical species. PLoS One, 14: e0226399.
2018
18. Gilioli, KC; Kéry, M; Guimarães, M. 2018. Unraveling fine-scale habitat use for secretive species: when and where toads are found when not breeding. Plos One 13(10): e0205304.
2017
17. Guimarães, M; Munguía-Steyer, R.; Doherty Jr.; Sawaya, RJ. 2017. No survival costs for sexually selected traits in a polygynous non-territorial lizard. Biological Journal of the Linnean Society 122: 614-626.
16.Martins, L. F. ; Guimarães, M. ; Verrastro, L. . Population Estimates for the Sand-Lizards Liolaemus arambarensis: Contributions to the Conservation of an Endemic Species of Southern Brazil. Herpetologica 73:55-62.
2015
15.Sobral, T.; Francini, R.; Guimarães, M.; Benson, W. 2015. Short-term dynamics reveals seasonality in a subtropical Heliconius butterfly. Journal of Insects 2015: 1-5.
2014
14.Guimarães, M.; Doherty Jr., P.; Munguía-Steyer, R . 2014. Strengthening Population Inference in Herpetofaunal Studies by Addressing Detection Probability. South American Journal of Herpetology 9:1-8.
13.Guimarães, M.; Corrêa D.T.; Oliveira, T.A.; Serrano-Filho, S.; Doherty Jr., P.; Sawaya, R.J. 2014. One step forward: contrasting the effects of Toe clipping and PIT tagging on frog survival and recapture probability. Ecology and Evolution 4:1480-1490.
12.Guimarães, M.; Munguía-Steyer, R.; Doherty Jr., P.; Martins, M.; Sawaya, R.J. 2014. Population dynamics of the critically endangered golden lancehead pitviper, Bothrops insularis: stability or decline?. Plos One 9:1-7.
2013
11.Corrêa D.T.; Guimarães, M.; Oliveira, T.A.; Martins, M.; Sawaya, R.J. 2013. Population declines: toe-clipping vital to amphibian research. Nature 493:305.
10.Guimarães, M.; Gaiarsa, M.P.; Cavalheri, H.B. 2013. Morphological adaptations to arboreal habitats and heart position in species of the neotropical whipsnakes genus Chironius. Acta Zoologica 95:341-346.
2012
9.Guimarães, M.; Sawaya, R.J. 2012. The snake head-shape signal: a reply to Valkonen & Mappes. Journal of Tropical Ecology 28:125-126.
2011
8.Guimarães, M; Sawaya, R.J. 2011. Pretending to be venomous: is a snake's head shape a trustworthy signal to a predator? Journal of Tropical Ecology27:437-439.
2010
7.Guimarães, M.; Bovo, R.P.; Kasperoviczus, K.; Marques, O.A.V. 2010. Natural History Notes: Bothrops insularis (Golden Lancehead) Maximum Length. Herpetological Review, 41:89-90.
2009
6.Marques, O.A.V.; Almeida-Santos, S.M.; Guimarães, M.; Camargo, R. 2009. Mating and reprodutive cycle in the neotropical snake Chironius bicarinatus. South American Journal of Herpetology, 4:76-80.
5.Barbo, F.E.; Guimarães, M; Couto, F.; Sawaya, R.J. 2009. Predation on Leptodactylus marmoratus (Anura: Leptodactylidae) by the spider Ctenus medius (Araneae: Ctenidae) in the Atlantic Forest, southeast Brazil. Herpetology Notes, 2:99-100.
2008
4.Guimarães, M. 2008. Chironius exoletus (Common Whipsnake): Prey and possible diet convergence (Herpetological Bulletin). Herpetological Bulletin, 105:41-42.
2007
3.Pereira, D.N.; Stender-Oliveira, F.; Guimarães, M.; Bernils, R.S. 2007. Distribution and habitat use of Sordellina punctata (Serpentes, Colubridae), with a new occurrence from São Paulo state, Brazil. Herpetological Bulletin, 100:18-22.
2006
2.Marques, O.A.V.; Almeida-Santos, S.M.; Guimarães, M. 2006. Activity patterns in coral snakes, genus Micrurus (Elapidae), in South and Southeastern Brazil. South American Journal of Herpetology, 1:114-120.
1.Marques, O.A.V.; Guimarães, M.; Sazima, Ivan. 2006. Body bending: a cryptic defensive behaviour in arboreal snakes. Herpetological Bulletin, 97:2-4.