Research trends and knowledge gaps in the ecology of dung beetles (Coleoptera: Scarabaeidae) in savannas

Annals of the Entomological Society of America, Год журнала: 2024, Номер 117(4), С. 209 - 219

Опубликована: Июнь 20, 2024

Abstract Savannas are recognized as one of the world’s most biodiverse ecosystems. However, these environments have highest rates habitat loss due to land use and climate-induced alterations in fire regimes. The combination threats, along with knowledge gaps biodiversity, represents formidable challenges conservation efforts regions. Dung beetles, vital for comprehending impact on savannas, yet undergo comprehensive study. To address this gap, we conducted a systematic review current state regarding dung beetles distributed savannas within Neotropical, Afrotropical, Australasia zoogeographic We describe encompassing geographical distribution, research topics, studied habitats, key metrics assessed existing studies. Our results reveal pronounced focus Neotropical highlighting substantial deficit beetle ecology Afro-tropical Australasian savannas. Most articles focused savanna grasslands, woodlands, human-introduced habitats such pastures. predominant community patterns, replacement, degradation. Noteworthy included abundance, richness, species composition. Diversity indexes functional diversity were also relatively well-explored metrics. across all regions, aspects behavior, reproductive biology, physiology remain inadequately explored. In conclusion, urgent imperative, emphasizing need metrics, including biomass, morphometrics, ecological functions advance our understanding their significance roles

Язык: Английский

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Forest-biased terminology does not help to include open ecosystems in conservation policies

Perspectives in Ecology and Conservation, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Язык: Английский

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Toward diverse seed sourcing to upscale ecological restoration in the Brazilian Cerrado

Frontiers in Ecology and Evolution, Год журнала: 2022, Номер 10

Опубликована: Ноя. 24, 2022

Seed markets are vital to scaling up ecosystem restoration in the Brazilian Cerrado , home of world’s most species-rich grasslands and savannas. We compiled lists species traded by four major seed supply systems investigate representativeness currently available for seed-based restoration. also identified whether dominant ground-layer being sourced production. Seeds from 263 can be purchased restoration, which 68% trees, particularly legumes (24%). 63% were found only one system. The five graminoids ground layer sale, but two additional uncommon old-growth areas represented 44% sales a key trader Central Brazil. expansion should supported further increase number on market. Sourcing seeds diversity herbaceous is central facilitating savannas . Recovering functioning open ecosystems through will depend increasing demand typical ’s layer.

Язык: Английский

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Legacy effects after seven years of afforestation withPinus taedain a natural grassland

Restoration Ecology, Год журнала: 2023, Номер 31(4)

Опубликована: Янв. 10, 2023

The replacement of grassy vegetation by tree monocultures has become an emerging global activity. In South America, about half a million hectares new plantations are incorporated each year, typically conducted with fast‐growing exotic species, like Pinus and Eucalyptus species. However, information the potential for spontaneous recovery these grasslands is almost nonexistent. We assessed biotic abiotic legacies left 7‐year plantation taeda on natural temperate sub‐humid grassland Uruguay. paired sampling design, comparing clear‐cut P. grassland, we analyzed richness, cover composition, seed bank size chemical soil parameters. Afforestation reduced species richness 30 58%, respectively. Also, composition differed considerably between sites. had strong negative effect grass excluding shade‐intolerant C 4 grasses that dominate in grassland. Seed‐bank did not differ sites, but total seedling density was significantly higher compared to (6,620 4,420 seeds/m 2 , respectively), mainly due contribution forbs. Only 30% were shared two terms parameters, afforestation induced acidification (deviation 0.15–0.20 pH units) reduction carbon cation (Ca K) concentrations 30, 20, 40%, respectively). Our study showed limited possibilities passive restoration Uruguay after event.

Язык: Английский

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Desafios na conservação e no manejo de áreas de reserva legal em ecossistemas campestres e savânicos brasileiros frente às mudanças climáticas globais

Pesquisa Agropecuária Brasileira, Год журнала: 2024, Номер 59

Опубликована: Янв. 1, 2024

Resumo As áreas de reserva legal (ARLs) são parte fundamental da estratégia brasileira conservação, juntamente com as preservação permanente. ARLs destinadas à manutenção biodiversidade e podem ser manejadas forma sustentável. Quando essas abrigam ecossistemas dependentes fogo pastejo, como os campos nativos savanas, devem adotadas práticas manejo adequadas sua conservação ao enfrentamento dos efeitos das mudanças climáticas globais. No entanto, esse assunto ainda é pouco discutido no Brasil, políticas públicas não claras a respeito. Este artigo revisão descreve campestres savânicos aspectos legais relacionados o ARLs, cenários climáticos atuais futuros, relação entre clima risco incêndios. Também apresenta uma sobre uso do pastejo em savânicos, desafios relativos aplicação nas geotecnologias monitoramento destas práticas. Conclui-se que fogo, instrumentos manejo, adequados às funções desde praticados segundo normas cientificamente embasadas para evitar negativos seu equivocado.

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