Time-lags in primate occupancy: a study case using dynamic models

Sales, Lílian P.; Hayward, Matt W.; Zambaldi, Ludimilla; Passamani, Marcelo; Melo, Fabiano Rodrigues de; Loyola, Rafael

doi:10.1016/j.ncon.2015.10.003

Cited by 9 publications

(9 citation statements)

References 15 publications

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“…Similarly, Sales et al. () reported a time‐delayed response of 11 years for a primate species in Brazil. An exception is the work by Brooks et al.…”

Section: Discussionmentioning

confidence: 85%

Mapping extinction debt highlights conservation opportunities for birds and mammals in the South American Chaco

Semper‐Pascual

Macchi

Sabatini

et al. 2018

Journal of Applied Ecology

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Habitat loss is the primary cause of local extinctions. Yet, there is considerable uncertainty regarding how fast species respond to habitat loss, and how time‐delayed responses vary in space. We focused on the Argentine Dry Chaco (c. 32 million ha), a global deforestation hotspot, and tested for time‐delayed response of bird and mammal communities to landscape transformation. We quantified the magnitude of extinction debt by modelling contemporary species richness as a function of either contemporary or past (2000 and 1985) landscape patterns. We then used these models to map communities' extinction debt. We found strong evidence for an extinction debt: landscape structure from 2000 explained contemporary species richness of birds and mammals better than contemporary and 1985 landscapes. This suggests time‐delayed responses between 10 and 25 years. Extinction debt was especially strong for forest specialists. Projecting our models across the Chaco highlighted areas where future local extinctions due to unpaid extinction debt are likely. Areas recently converted to agriculture had highest extinction debt, regardless of the post‐conversion land use. Few local extinctions were predicted in areas with remaining larger forest patches. Synthesis and applications. The evidence for an unpaid extinction debt in the Argentine Dry Chaco provides a substantial window of opportunity for averting local biodiversity losses. However, this window may close rapidly if conservation activities such as habitat restoration are not implemented swiftly. Our extinction debt maps highlight areas where such conservation activities should be implemented.

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“…Similarly, Sales et al. () reported a time‐delayed response of 11 years for a primate species in Brazil. An exception is the work by Brooks et al.…”

Section: Discussionmentioning

confidence: 85%

Mapping extinction debt highlights conservation opportunities for birds and mammals in the South American Chaco

Semper‐Pascual

Macchi

Sabatini

et al. 2018

Journal of Applied Ecology

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“…While habitat fragmentation may limit the dispersal capacity of A. caraya (Oklander, Kowalewski, & Corach, 2010;Oklander & Corach, 2013), a larger number of more closely-spaced patches may facilitate movements by providing stepping-stones of habitat (Clarke, Collins, & Zucker, 2002;Pozo-Montuy et al, 2011), especially considering the ability of the howlers to move over the ground (Serio-Silva, Ramírez-Julián, Eppley, & Chapman, 2019). It is important to note, however, that this apparent tolerance of habitat loss and fragmentation may actually represent the delayed or time-lagged extinction of populations (Michalski & Peres, 2005;Sales et al, 2015). While howler populations may persist in the short term, then, even in disturbed patches, both occupancy and overall density may decline over the medium to long term (Zunino, Kowalewski, Oklander, & González, 2007).…”

Section: Resultsmentioning

confidence: 99%

“…Although little is known about the relationships established between these primates and the landscape and patch characteristics, we can propose a number of predictions on the characteristics of the behavioral ecology of these species. As a generalist species, the marmosets would be less sensitive to the landscape and local degradation and would not be affected by the anthropogenic matrix (Sales et al, 2015;Secco, Grilo, & Bager, 2018). As the capuchin monkeys live in large groups, they would need larger patches with a well-preserved structure (Fragaszy, Visalberghi, & Fedigan, 2004).…”

Section: Introductionmentioning

confidence: 99%

Fragment shape and size, landscape permeability and fragmentation level as predictors of primate occupancy in a region of Brazilian Cerrado

Grande

Alencar

Ribeiro

et al. 2020

Acta Sci. Biol. Sci.

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Human activities result in the formation of a mosaic of forest patches within a non-habitat matrix. The response of the local biodiversity to changes in land-use may occur at different scales. It is important to evaluate the effects of the attributes of both the patches and the surrounding landscape on the occupancy of forest patches by animal populations. Here, we assessed the predictive potential of local (basal area, tree density), patch (size, shape) and landscape scale (total area of forest, number of patches, matrix permeability, patch proximity) variables on the occupancy of forest patches by the syntopic primates Alouatta caraya, Sapajus libidinosus and Callithrix penicillata in the city of Goiânia in the Cerrado region of central Brazil. We used playback to survey primate populations in 22 focal patches and assessed the landscape within a 1000 m buffer zone around each site. In A. caraya, occupancy was influenced by the shape of the focal patches, the amount of forest and fragmentation level of the landscape. Focal patch size and the permeability of the matrix were the principal determinants of the occupancy of S. libidinosus. None of the predictors influenced patch occupancy in C. penicillata, and the structure of the vegetation did not influence occupancy in any of the species. The preservation of as many forest patches as possible, both large and small, as well as gallery forests, and the enhancement of matrix permeability will be essential for the long-term conservation of the syntopic primates of the Cerrado of central Brazil.

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“…However, human activities such as large enterprises pursuing economic development by mining, road construction, agriculture, and hydropower have converted large areas of continuous forest into forest mosaics with irregular sizes and shapes, inserted into a matrix of habitat usually unsuitable for biodiversity (Benchimol & Peres, 2015;Cochrane & Laurance, 2002;Ewers & Didham, 2007;Ferreira et al, 2014;. This recent transformation of natural landscapes can be the main cause of increasing species extinction rates even in protected areas ((PAs) (Benchimol & Peres, 2015;Henle et al, 1996)), although the extinction debt is poorly understood (Rangel, 2012) and the time lag of occupancy after a disturbance is also very unclear and poorly known (Metzger et al, 2009;Sales et al, 2015).…”

mentioning

confidence: 99%

“…F. Laurance et al., 2002). This recent transformation of natural landscapes can be the main cause of increasing species extinction rates even in protected areas ((PAs) (Benchimol & Peres, 2015; Henle et al, 1996)), although the extinction debt is poorly understood (Rangel, 2012) and the time lag of occupancy after a disturbance is also very unclear and poorly known (Metzger et al., 2009; Sales et al., 2015).…”

mentioning

confidence: 99%

Nonvolant Small Mammal (Rodentia and Didelphimorphia) Assemblages Structure in Areas Under Mining Impact in the Brazilian Amazon

Rodrigues

Costa

Faria

et al. 2020

Tropical Conservation Science

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Tropical forests are the most biodiverse ecosystems on Earth. Unfortunately, they are often degraded by large enterprises that convert large areas of continuous forest into forest mosaics or into deforested areas in order to seek economic development through infrastructure construction. This study evaluates how the assemblage of nonvolant small mammals is structured after the implementation of a bauxite mining in the Saracá-Taquera National Forest, Pará, Brazil. We tested the hypothesis that the clearings for bauxite mining produce an edge effect over the small mammal assemblage and that the size of the deforested area increases the impact's magnitude. Data collection took place through live traps from 2010 to 2012, totaling an effort of 56,220 trap nights in both impacted and pristine areas. Generalized Linear Models revealed that the size of the mined area was the main predictor explaining species impoverishment in impacted areas. Multivariate Permutational Analysis of Variance and Multivariate Dispersion Permutation Analysis revealed differences in species composition between impacted and nonimpacted sites and that these differences are due to species turnover. We recommended that concessions for land use should be rethought, especially in protected areas and when major areas are subjected to a new economic exploitation cycle.

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Time-lags in primate occupancy: a study case using dynamic models

Cited by 9 publications

References 15 publications

Mapping extinction debt highlights conservation opportunities for birds and mammals in the South American Chaco

Mapping extinction debt highlights conservation opportunities for birds and mammals in the South American Chaco

Fragment shape and size, landscape permeability and fragmentation level as predictors of primate occupancy in a region of Brazilian Cerrado

Nonvolant Small Mammal (Rodentia and Didelphimorphia) Assemblages Structure in Areas Under Mining Impact in the Brazilian Amazon

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