Plant Invasion-Induced Habitat Changes Impact a Bird Community through the Taxonomic Filtering of Habitat Assemblages DOI Creative Commons
Emilia Grzędzicka

Animals, Journal Year: 2024, Volume and Issue: 14(11), P. 1574 - 1574

Published: May 25, 2024

Describing the spatial distribution of communities is crucial to understanding how environmental disturbance can affect biodiversity. Agricultural lands are susceptible disturbances anthropogenic origin and have been identified as ecosystems conservation concern. Such vulnerable invasions by anthropogenically introduced non-native plants disturbing habitats. This research focused on invasion-induced taxonomic filtering birds with shared habitat requirements. The were surveyed along a gradient invasion-altered areas (far from invasion, uninvaded although invaders, invaded) identify changes in bird assemblages (ground/herb dwellers, bush foragers, ecotone birds, tree foragers) caused this disturbance. Data collected 112 sites sampled southeastern Poland. There significantly fewer species each assemblage invaded than sites, exposed despite decrease abundance only ground/herb dwellers. Beta diversity analysis showed that invasion contained different those at other sites. Invasion-induced resulted significant reduction dwellers comparison created distinctive assemblage. was most likely due transformation grassland layer thickening shrub plant which resemble shrubs morphology. results indicated effect composition level two decreases whole community.

Language: Английский

Species turnover does not rescue biodiversity in fragmented landscapes DOI
Thiago Gonçalves‐Souza, Jonathan M. Chase, Nick M. Haddad

et al.

Nature, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Language: Английский

Citations

1
Time and matrix quality increase the relative habitat value of smaller patches in fragmented landscapes DOI Creative Commons
David C. Deane, Federico Riva

Journal of Applied Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Abstract The landscape‐scale impacts of habitat subdivision (fragmentation per se) on biodiversity are not fully resolved. While smaller patches usually contain more species for equal total area, many implications this remain unclear. For example, do areas and larger provide equivalent value? How might change over time under differing matrix conditions? To help address these knowledge gaps, we developed an indicator relative value based a species‐individual null model. We used the to compare sets ordered in small‐to‐large large‐to‐small orders, building hierarchical Bayesian regression models test role since patch creation contrasting conditions. This allowed us assess 85 metacommunities inhabiting fragmented landscapes (1354 patches, >4500 species). expected comparable following due unpaid extinction debts, would determine direction time, harsher increasing patches. Averaged quality, probability density was mostly negative, suggesting slightly greater among pattern consistent across taxonomic groups, although amphibians reptiles were most affected, invertebrates least so. Larger within 20 years creation, but increased any type, whereas remained constant Matrix conditions mediated difference: after 100 light matrix, all sizes essentially value, while still favoured harsh matrix. Policy . In long‐fragmented, landscapes, small large apparently offer per‐unit‐area value. Conversely, retain speculate that reflects ‘colonization credit’, which occur initial loss fragmentation‐sensitive disturbed landscapes. Overall, analyses support need maintain enhance area—regardless configuration—for conservation, especially long‐fragmented with matrices.

Language: Английский

Citations

0
Small forest patches and landscape-scale fragmentation exacerbate forest fire prevalence in Amazonia DOI Creative Commons
Ciar Noble, James J. Gilroy, Carlos A. Peres

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 375, P. 124312 - 124312

Published: Jan. 25, 2025

Over recent decades, forest fire prevalence has increased throughout the tropics, necessitating improved understanding of landscape-scale drivers occurrence. Here, we use MapBiomas land-cover and scar data to evaluate relationships between fragmentation, land-use, in a typically consolidated Amazonian agricultural frontier: Portal da Amazonia, Mato Grosso, Brazil. Using zero-/zero-one-inflated Beta regressions, investigate effects patch (area, shape, surrounding cover) variables (forest edge length, composition) on occurrence density 1985 2021. We show that was greatest small, complex patches. Small patches (≤100 ha) were also dominant contributors annual, regional cover. At (100 km2), length urban land cover positively associated with density. Furthermore, fires most likely occur landscapes consisting ∼45% pasture cover, while roughly linearly Cropland negatively Our findings indicate clear links fragmentation prevalence. This is cause for global concern, given rates Amazonia are increasing, eroding Amazon's capacity act as carbon sink. Efforts minimise further within would help reduce Within already fragmented regions, conversion into crops, alongside targeted efforts suppress small urbanized areas, may limit

Language: Английский

Citations

0
Biodiversity responses to insular fragmentation in Amazonia: two decades of research in the Balbina Hydroelectric Reservoir DOI
Ana Filipa Palmeirim, Maíra Benchimol, Danielle Storck‐Tonon

et al.

Zoological research: diversity and conservation., Journal Year: 2024, Volume and Issue: 1(2), P. 106 - 116

Published: Jan. 1, 2024

As hydropower development expands across lowland tropical forests, flooding and concomitant insular fragmentation have become important threats to biodiversity.Newly created landscapes serve as natural laboratories investigate biodiversity responses fragmentation.One of these most iconic is the Balbina Hydroelectric Reservoir in Brazilian Amazonia, occupying >400 000 ha comprising >3 500 forest islands.Here, we synthesise current knowledge on a wide range biological groups at Balbina.Sampling has largely concentrated set 22 islands three mainland sites.In total, 39 studies were conducted over nearly two decades, covering 17 vertebrate, invertebrate, plant taxa.Although species varied according taxonomic group, island area was consistently included played pivotal role 66.7% all examining patterns diversity.Species persistence further affected by traits, mostly related capacity use/traverse aquatic matrix or tolerate habitat degradation, noted for vertebrates orchid bees.Further research needed improve our understanding such effects wider ecosystem functioning.Environmental Impact Assessments must account changes both remaining amount configuration, subsequent long-term losses.

Language: Английский

Citations

2
Plant Invasion-Induced Habitat Changes Impact a Bird Community through the Taxonomic Filtering of Habitat Assemblages DOI Creative Commons
Emilia Grzędzicka

Animals, Journal Year: 2024, Volume and Issue: 14(11), P. 1574 - 1574

Published: May 25, 2024

Describing the spatial distribution of communities is crucial to understanding how environmental disturbance can affect biodiversity. Agricultural lands are susceptible disturbances anthropogenic origin and have been identified as ecosystems conservation concern. Such vulnerable invasions by anthropogenically introduced non-native plants disturbing habitats. This research focused on invasion-induced taxonomic filtering birds with shared habitat requirements. The were surveyed along a gradient invasion-altered areas (far from invasion, uninvaded although invaders, invaded) identify changes in bird assemblages (ground/herb dwellers, bush foragers, ecotone birds, tree foragers) caused this disturbance. Data collected 112 sites sampled southeastern Poland. There significantly fewer species each assemblage invaded than sites, exposed despite decrease abundance only ground/herb dwellers. Beta diversity analysis showed that invasion contained different those at other sites. Invasion-induced resulted significant reduction dwellers comparison created distinctive assemblage. was most likely due transformation grassland layer thickening shrub plant which resemble shrubs morphology. results indicated effect composition level two decreases whole community.

Language: Английский

Citations

0