Spatial Ecology of Reddish-Brown Cuxiú Monkeys (Chiropotes sagulatus, Pitheciidae) in an Isolated Forest Remnant: Movement Patterns and Edge Effects DOI Creative Commons
Sarah A. Boyle,

Waldete C. Lourenço,

Lívia R. da Silva

et al.

Diversity, Journal Year: 2023, Volume and Issue: 15(6), P. 731 - 731

Published: June 1, 2023

Habitat loss, and subsequent fragmentation, can increase the amount of forest edge. Primate species vary in their responses to such changes habitat. We studied movement ecology a group reddish-brown cuxiú monkeys (Chiropotes sagulatus, Pitheciidae) small (13 ha), isolated remnant that was <3% species’ typical home range region. Every 5 min we recorded group’s latitude longitude, behavior all individuals sight. calculated distance, speed, trajectory travel routes, distance from every location nearest Using Lidar data, canopy height. Cuxiús traveled cardinal directions, but they turned left more often than right, at faster speed locations where fed did not eat. Although cuxiús used edge interior, concentrated movements activities >30 m Furthermore, food sites were located less near edge, height trees lower greater effects impacted monkeys’ movement, >15 provide resources. Future research examine ecological variables detail with patterns.

Language: Английский

Losing lemurs: Declining populations and land cover changes over space and time DOI Creative Commons
Pamela R. Narváez‐Torres, Nicola K. Guthrie, Typhenn A. Brichieri‐Colombi

et al.

American Journal of Primatology, Journal Year: 2024, Volume and Issue: unknown

Published: March 11, 2024

Abstract Forest loss and degradation due to land cover changes imperil biodiversity worldwide. Subtropical tropical ecosystems experience high deforestation rates, negatively affecting species like primates. Madagascar's endemic lemurs face exceptionally risks of population declines extirpation. We examined how short‐term within a fragmented landscape in southeastern Madagascar impacted the density lemur species. Using line transects, we assessed nine across five forest fragments. Diurnal surveys were conducted monthly from 2015 2019 on 35 transects (total effort = 1268 km). Additionally, 21 surveyed nocturnally 2016 107.5 To quantify changes, generated use/land (LULC) maps Sentinel‐2 imagery using supervised classification for each year. For LULC maps, overlayed species‐specific buffers around all calculated proportion classes them. observed annual densities four diurnal cathemeral between 2019, with up 80% ( Varecia variegata ). While two nocturnal decreased, one increased fivefold Cheirogaleus major ) 2016. By Grassland was dominant type (50%), while Paddy Fields had smallest coverage (1.03%). Mature Agricultural Land most (63.37%), New decreased (–66.36%). Unexpectedly, did not find evidence that higher supported sampled areas, but found support negative impact degraded types three Our study underscores urgent need address land‐use their repercussions primate populations ecosystems. The diverse responses modified habitats highlight complexity these impacts emphasize importance targeted conservation efforts.

Language: Английский

Citations

3
Studies of Titi Conservation Ecology in the Past, Present and Future: An Editors’ Introduction to the Special Issue DOI Open Access
Adrian A. Barnett, Sarah A. Boyle, João Pedro Souza‐Alves

et al.

International Journal of Primatology, Journal Year: 2023, Volume and Issue: 45(1), P. 1 - 11

Published: Aug. 1, 2023

Language: Английский

Citations

1
Direct links between resource availability and activity budget better reveal ecological patterns of endangered Coimbra-Filho’s titi monkey DOI
João Pedro Souza‐Alves, Renato Richard Hilário,

Isadora P. Fontes

et al.

Primates, Journal Year: 2023, Volume and Issue: 65(1), P. 49 - 59

Published: Oct. 8, 2023

Language: Английский

Citations

1
Effect of landscape attributes on the occurrence of the endangered golden‐headed lion tamarin in southern Bahia, Brazil DOI
Joanison Vicente dos Santos Teixeira, Fernando César Gonçalves Bonfim, Maurício Humberto Vancine

et al.

American Journal of Primatology, Journal Year: 2023, Volume and Issue: 86(4)

Published: Dec. 25, 2023

Abstract The golden‐headed lion tamarin ( Leontopithecus chrysomelas ) is an endangered primate that occurs exclusively in the Atlantic Forest of southern Bahia, Brazil. Its geographic range has been severely reduced by deforestation and its populations are restricted to a human‐modified landscape consisting primarily forest fragments shade cacao Theobroma agroforestry, locally known as cabrucas . In last 30 years, there 42% reduction 60% population size L. , with only 8% habitat represented protected areas. Thus, we investigated occurrence based on interviews using playback census, evaluated influence attributes occurrence. was measured Generalized Linear Model set 12 predictor variables, including fragment elevation. inhabited 186 (38%) 495 Most patches n = 169, 91%) eastern portion (ca. 70 km wide region from coast inland) range. remaining 17, 9%) western distribution, between 150 coast. Our models indicate higher range, where exhibits lower land cover diversity, greater functional connectivity, altitudes (<400 m), composed core percentage. contrast, observed portion, more diverse heterogeneous due anthropogenic activities, such agriculture livestock. We urge establishment ecological corridors via reforestation degraded areas This increase availability suitability west together protection forests east would our chances saving extinction.

Language: Английский

Citations

1
Spatial Ecology of Reddish-Brown Cuxiú Monkeys (Chiropotes sagulatus, Pitheciidae) in an Isolated Forest Remnant: Movement Patterns and Edge Effects DOI Creative Commons
Sarah A. Boyle,

Waldete C. Lourenço,

Lívia R. da Silva

et al.

Diversity, Journal Year: 2023, Volume and Issue: 15(6), P. 731 - 731

Published: June 1, 2023

Habitat loss, and subsequent fragmentation, can increase the amount of forest edge. Primate species vary in their responses to such changes habitat. We studied movement ecology a group reddish-brown cuxiú monkeys (Chiropotes sagulatus, Pitheciidae) small (13 ha), isolated remnant that was <3% species’ typical home range region. Every 5 min we recorded group’s latitude longitude, behavior all individuals sight. calculated distance, speed, trajectory travel routes, distance from every location nearest Using Lidar data, canopy height. Cuxiús traveled cardinal directions, but they turned left more often than right, at faster speed locations where fed did not eat. Although cuxiús used edge interior, concentrated movements activities >30 m Furthermore, food sites were located less near edge, height trees lower greater effects impacted monkeys’ movement, >15 provide resources. Future research examine ecological variables detail with patterns.

Language: Английский

Citations

0