The impact of land use on the acoustic behaviour of cicadas in the Chocó lowland tropical forest of Ecuador DOI Creative Commons

Rosa Gindhart,

Jörg Müller, Zuzana Buřivalová

et al.

Insect Conservation and Diversity, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 21, 2024

Abstract The biodiversity of tropical rainforests is under extreme pressure due to the expansion agricultural land. Beyond immediate risk species extinction, intensification land use can alter species' behaviour with consequences for entire ecosystem. In this study we investigated impact on acoustic cicadas in highly biodiverse Ecuadorian Chocó region. We used passive monitoring (PAM) collection audio data, from which identified and analysed sound activity structure daily patterns along a chronosequence forest recovery. At landscape scale studied surrounding either dominated by or forests cicadas. Cicada was significantly lower active agriculture compared undisturbed old‐growth increased recovery gradient. diurnal pattern changed simple more complex synchronized gradient towards forests. A additionally reduced simplified Taken together, at local scales affects overall activity, synchrony vocalizing song This concerning trend considering direct link between chorusing fitness However, mature restoration embedded surroundings showed restored cicada behaviours similar those forests, underlines conservation value advanced secondary importance support regeneration tropics.

Language: Английский

Towards a toolkit for global insect biodiversity monitoring DOI Creative Commons
Roel van Klink, Julie Koch Sheard, Toke T. Høye

et al.

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1904)

Published: May 5, 2024

Insects are the most diverse group of animals on Earth, yet our knowledge their diversity, ecology and population trends remains abysmally poor. Four major technological approaches coming to fruition for use in insect monitoring ecological research—molecular methods, computer vision, autonomous acoustic radar-based remote sensing—each which has seen advances over past years. Together, they have potential revolutionize ecology, make all-taxa, fine-grained feasible across globe. So far, within among technologies largely taken place isolation, parallel efforts projects led redundancy a methodological sprawl; yet, given commonalities goals approaches, increased collaboration integration could provide unprecedented improvements taxonomic spatio-temporal resolution coverage. This theme issue showcases recent developments state-of-the-art applications these technologies, outlines way forward regarding data processing, cost-effectiveness, meaningful trend analysis, open requirements. papers set stage future automated monitoring. article is part ‘Towards toolkit global biodiversity monitoring’.

Language: Английский

Citations

15
Time and habitat structure shape insect acoustic activity in the Amazon DOI
Leandro Do Nascimento, Cristian Pérez‐Granados, Janderson Batista Rodrigues Alencar

et al.

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1904)

Published: May 5, 2024

Insects are the most diverse animal taxon on Earth and play a key role in ecosystem functioning. However, they often neglected by ecological surveys owing to difficulties involved monitoring this small hyper-diverse taxon. With technological advances biomonitoring analytical methods, these shortcomings may finally be addressed. Here, we performed passive acoustic at 141 sites (eight habitats) investigate insect activity Viruá National Park, Brazil. We first describe frequency range occupied three soniferous groups (cicadas, crickets katydids) calculate evenness index (AEI). Then, assess how AEI varies spatially temporally among habitat types, relationship between vegetation structure variables for each category. Overall, lower narrower bands than cicadas katydids. values varied categories across space time. The highest occurred before sunrise lowest was recorded pastures. Canopy cover positively associated with cricket but not Our findings contribute better understanding of time, shaping within Amazonian ecosystems. This article is part theme issue ‘Towards toolkit global biodiversity monitoring’.

Language: Английский

Citations

7
ECOLOGY OF ACOUSTIC PARTITIONING IN INSECT ASSEMBLAGES DOI Creative Commons

A Anjana,

K T Teji

Behavioural Processes, Journal Year: 2025, Volume and Issue: unknown, P. 105167 - 105167

Published: Feb. 1, 2025

Language: Английский

Citations

0
Causes and consequences of insect decline in tropical forests DOI

Michael J. W. Boyle,

Timothy C. Bonebrake,

Karina Dias da Silva

et al.

Published: April 4, 2025

Language: Английский

Citations

0
Drivers and benefits of natural regeneration in tropical forests DOI
Robin L. Chazdon, Nico Blüthgen, Pedro H. S. Brancalion

et al.

Published: April 21, 2025

Language: Английский

Citations

0
Habitat niches of bird species along a recovery gradient in the Chocó tropical forest DOI Creative Commons
Ana Falconí‐López, Oliver Mitesser,

H. Martin Schaefer

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 166, P. 112260 - 112260

Published: June 27, 2024

Conservation programs need improved tools to measure the recovery of animal diversity across restoration gradients. We used soundscapes and expert identifications bird species calculate niche position (i.e., mean environmental conditions all areas a occupies) breadth standard deviation distribution) along gradient; from agriculture early (up 20 yrs) late 38 recovery, old-growth forests. Our survey included 323 was conducted in 66 plots lowland Chocoan tropical rainforest Ecuador where less than 11% forest remains intact, large are currently undergoing regeneration post-abandonment. First, we validated our metrics by contrasting them against independent global categories density dependency. then explained with different ecological traits, gathered literature, reflecting species-specific primary diet, morphology distribution, accounting for phylogenetic relatedness species. Finally, explored signal present species' traits metrics. Niche gradient closely followed However, approach provided more fine-scaled sorting categorized as old-growth. Granivorous birds occupied positions active cacao pasture were replaced frugivorous older plots. Along gradient, tail length handwing index decreased position, supporting previous observations that forests mobile. Birds had smaller distribution ranges agricultural latitudinal study area averaged south equator, averaging centroids wet north whereas further country, towards dry open Tumbesian forest. Frugivores, invertivores vertivores broader breadths, but these (marginally) length. suggest potentially powerful tool rapid assessment process, which might support conservation strategies such biodiversity credits, compensation payments, strategic land purchases. With increasing availability information-intensive models identification, deep learning artificial intelligence, new avenue at larger scales.

Language: Английский

Citations

3
The impact of land use on the acoustic behaviour of cicadas in the Chocó lowland tropical forest of Ecuador DOI Creative Commons

Rosa Gindhart,

Jörg Müller, Zuzana Buřivalová

et al.

Insect Conservation and Diversity, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 21, 2024

Abstract The biodiversity of tropical rainforests is under extreme pressure due to the expansion agricultural land. Beyond immediate risk species extinction, intensification land use can alter species' behaviour with consequences for entire ecosystem. In this study we investigated impact on acoustic cicadas in highly biodiverse Ecuadorian Chocó region. We used passive monitoring (PAM) collection audio data, from which identified and analysed sound activity structure daily patterns along a chronosequence forest recovery. At landscape scale studied surrounding either dominated by or forests cicadas. Cicada was significantly lower active agriculture compared undisturbed old‐growth increased recovery gradient. diurnal pattern changed simple more complex synchronized gradient towards forests. A additionally reduced simplified Taken together, at local scales affects overall activity, synchrony vocalizing song This concerning trend considering direct link between chorusing fitness However, mature restoration embedded surroundings showed restored cicada behaviours similar those forests, underlines conservation value advanced secondary importance support regeneration tropics.

Language: Английский

Citations

0