Published: Jan. 1, 2024
Language: Английский
Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(3)
Published: March 1, 2024
The anthropogenic impacts on the environment, including deforestation and escalating emissions of greenhouse gases, have significantly contributed to global climate change that can lead alterations in ecosystems. In this context, protected areas (PAs) are pillars for biodiversity conservation by being able, example, maintain viability populations endangered species. On other hand, species range shifts do not follow limits PAs, jeopardizing these Furthermore, effectiveness PAs is consistently undermined stemming from land use, hunting activities, illegal exploitation, both within designated their adjacent zones. objectives study quantify distribution threatened endemic birds Amazon biome, evaluate protecting richness birds, analyze representativeness PAs. We found with our results suitability loss above 80 65% taxa optimistic scenario 93% pessimistic scenario. show effective Amazonian just as they ineffective most studied when analyzed individually Although some presented "Protected," future scenarios may suffer major shrinkages distributions consequently present population unviability. climatically suitable directly influence ecosystem services, fundamental maintaining balance biodiversity. Therefore, paves way actions aimed at so mitigate current extinctions due change.
Language: Английский
Citations
8
Diversity, Journal Year: 2025, Volume and Issue: 17(5), P. 305 - 305
Published: April 23, 2025
The expansion of anthropogenic activities drives changes in the composition, structure, and spatial configuration natural landscapes, influencing both taxonomic functional diversity bird communities. This pattern is evident Colombian Amazon, where agricultural livestock has altered ecological dynamics, avifaunal assemblages, provision regulating ecosystem services. study analyzed influence agroforestry (cocoa-based systems—SAFc) silvopastoral systems (SSP) on birds their potential impact services eight productive landscape mosaics within Amazon. Each mosaic consisted a 1 km2 grid, which seven types vegetation cover were classified, metrics calculated. Bird communities surveyed through visual observations mist-net captures, during traits measured. Additionally, guilds assigned to each species based literature review. Five multidimensional indices computed, along with community-weighted means per guild. A total 218 recorded across land-use systems. richness, abundance, diversity—as well as composition guilds—varied according cover. Functional increased containing closed patches symmetrical configurations. Variations linked low redundancy, may also lead differences such biological pest control seed dispersal—both are critical for regeneration connectivity rural landscapes. In conclusion, contributes resilience landscapes Amazonian systems, highlighting need management that promotes structural heterogeneity sustain connectivity.
Language: Английский
Citations
0
Ecosystem Services, Journal Year: 2024, Volume and Issue: 71, P. 101687 - 101687
Published: Dec. 7, 2024
Language: Английский
Citations
2
Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)
Published: Dec. 28, 2024
The negative effects of land-use changes on biodiversity significantly contribute to climate change. Primates are among the animals most affected by these changes, because their high dependence forest cover where a lack connectivity can limit dispersal and segregate populations. In this sense, protected areas (PAs) crucial for conserving endangered primates, especially endemic species. Using species distribution models, we assessed impact change deforestation geographic 35 Brazilian primates. We also evaluated potential PAs retain suitable habitats primate under current conditions (baseline) four future scenarios (optimistic pessimistic, both periods 2041–2060 2061–2080), as well capacity preserve species' representation now in future. Our findings indicate that taxa would experience significant loss area (> 90%) pessimistic optimistic scenarios. For scenarios, could exceed 98% 10 taxa, particularly Amazonian Regarding maintaining richness threatened only 8.6% harbor more than expected chance (1–6 taxa) baseline conditions, with decrease Results suggest already extinction inadequately even less so Given restricted population decline emphasize need increase number ensure viability prevent extinction.
Language: Английский
Citations
1
Molecular Phylogenetics and Evolution, Journal Year: 2024, Volume and Issue: 198, P. 108117 - 108117
Published: June 7, 2024
Language: Английский
Citations
0
Revista Peruana de Biología, Journal Year: 2024, Volume and Issue: 31(2), P. e27004 - e27004
Published: July 1, 2024
En el presente estudio se cuantifican las reservas de carbono existentes en siete fragmentos del paisaje agropecuario: (1) bosque primario altamente talado, (2) bosques secundarios 5, (3) 10 y (4) 15 años procedentes pasturas, (5) agroforestería cacao, (6) pastizal Brachiaria decumbens producción (7) degradado; estos son característicos los fundos agropecuarios departamento Ucayali, Perú. El almacenado (la suma total la parte aérea suelo) Bosque Primario fue 267.26 t/ha; Secundario 232.30 años, 162.1 5 124.42 con 108.82 B. decumbens, 72.57 degradada, 60.47 t/ha. Se observaron diferencias significativas (p ≤ 0.0001) entre valores fragmentos, (R2 = 0.51, CV 53.66%). La prueba contrastes ortogonales mostró que fragmento superó significativamente al promedio demás fragmentos; mientras que, cacao. No encontraron ambas tampoco años. incremento número familias especies relación directa a edad secundario seria evidencia recuperación diversidad botánica.
Citations
0
Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: unknown, P. e03353 - e03353
Published: Dec. 1, 2024
Language: Английский
Citations
0
Published: Jan. 1, 2024
Language: Английский
Citations
0