Carabid beetle (Coleoptera, Carabidae) richness, diversity, and community structure in the understory of temporarily flooded and non-flooded Amazonian forests of Ecuador

Peterson, Kathryn N. Riley; Browne, Robert A.; Erwin, Terry L.

doi:10.3897/zookeys.1044.62340

Cited by 4 publications

(1 citation statement)

References 169 publications

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“…I combined active and passive methods in both strata, so that the methods complement each other and increase the chances of success of the inventory (Hyvarinen et al 2006;Russo et al 2011;Lamarre et al 2012;Riley Peterson et al 2021). Hand collecting is a good addition to the trap samples particularly for walking and unconcealed beetles.…”

Section: Sampling Completenessmentioning

confidence: 99%

Strata use in a canopy-beetle community of a lowland Neotropical rainforest in southern Venezuela

Kirmse

2024

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The stratification in tropical rainforests is well pronounced. This strongly impacts the distribution of arthropods. As part of a larger beetle survey in the northern part of the Amazonian rainforest, I analyze the characteristics of beetle species shared between the canopy and the understory. Linking the strata use of adult beetles in the complex structure of tropical rainforests with their ecological characteristics may uncover causes of the differences in diversity between vertical layers. Seventy out of a total of 862 beetle species in 45 families sampled on 23 canopy-tree species were collected also in the understory. Beetle families represented with most species in the canopy and ground samples comprise Curculionidae, Chrysomelidae, and Carabidae. In Elateridae and Scarabaeidae, the proportion of shared species between both strata amounted to ≥ 20%. In contrast, the species-rich families (≥ 20 canopy species) Cerambycidae, Mordellidae, and Buprestidae did not comprise species sampled in both strata. Adult feeding requirements and larval substrates are discussed as main reasons for the differences in strata use between these beetle families. In addition, different climatic conditions between the exposed canopy and the more uniform understory might cause a migration of adult beetles between both strata and thus, result in intermixing of beetle species from different strata within the forest.

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Section: Sampling Completenessmentioning

confidence: 99%

Strata use in a canopy-beetle community of a lowland Neotropical rainforest in southern Venezuela

Kirmse

2024

Preprint

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The role of sheltered habitats in biodiversity conservation of species sensitive to drought: a case study using ground beetles (Coleoptera, Carabidae) in the Gorongosa National Park

Baptista,

Carvalho,

Boieiro

et al. 2024

Biodivers Conserv

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In the aftermath of 2019’ tropical cyclones Idai and Kenneth, we assessed ground beetle communities of the Gorongosa National Park (GNP) in Mozambique. The influence of habitat shelters, namely the buffering role of closed microhabitat conditions on Alpha diversity and community trait values during a long period of drought, was evaluated across the main habitat types of the park: miombo forests, mixed forests, transitional forests, and grasslands (open savannas). These habitat types comprised a distance gradient in relation to lake Urema, in the center of GNP. Miombo forests were farther from the lake while grasslands and transitional forests were in the floodplain area. Ground beetle communities were sampled using pitfall traps set up at 25 sites of each habitat type along an environmental gradient of tree canopy cover during the last twenty days of the dry season. Higher species richness of ground beetles was found in closed habitat shelters along the distance gradient to lake Urema. A higher functional diversity was also found along the canopy gradient, with larger sized and wingless species being more abundant in closed habitats than in open areas. This result highlights the crucial role of habitat closedness in the protection of sensitive ground beetles. In particular, the buffer effect of tree canopy and the protection of the understory plants and the litter layer was critical for the survival of hygrophilous species and will be key in conservation strategies to face climate aridification and habitat fragmentation.

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Long droughts decrease tiger- and ground-beetle’ beta diversity and community body size in savannas of the Gorongosa National Park (Mozambique)

Martins da Silva,

Carvalho,

Boieiro

et al. 2023

J Insect Conserv

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We assessed the Caraboidea communities of Gorongosa National Park (GNP) in Mozambique. Influence of tropical rainfall, after a long period of drought, was evaluated on alpha and beta diversity of tiger- and ground-beetles in the main habitat types of the park: miombo forests, mixed forests, transitional forests, and grasslands (open savannas). Tiger- and ground-beetle communities were sampled by pitfall traps set up in 25 sites of each habitat type along three sampling periods, comprising the transition of dry season to the wet season. After the first rainfall, an increase in alpha diversity was observed across GNP habitats, particularly in grasslands. Higher values of beta diversity were observed between the dry and wet sampling periods, particularly in grasslands. In contrast, community dissimilarities between sampling periods were not significant in the transitional forests. Community body size in grasslands increased after the rainfall, partly due to the occurrence of caraboid species that were exclusive of forest habitats during drought. Transitional forests, as ecotone habitat areas, appeared to support grassland species during drought, serving also as a source of forest species that may colonize the open areas in the wet season. Forest species will probably be more threatened by climate aridification and future landscape changes due to climate change.

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Carabid beetle (Coleoptera, Carabidae) richness, diversity, and community structure in the understory of temporarily flooded and non-flooded Amazonian forests of Ecuador

Cited by 4 publications

References 169 publications

Strata use in a canopy-beetle community of a lowland Neotropical rainforest in southern Venezuela

Strata use in a canopy-beetle community of a lowland Neotropical rainforest in southern Venezuela

The role of sheltered habitats in biodiversity conservation of species sensitive to drought: a case study using ground beetles (Coleoptera, Carabidae) in the Gorongosa National Park

Long droughts decrease tiger- and ground-beetle’ beta diversity and community body size in savannas of the Gorongosa National Park (Mozambique)

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