Insect Declines in the Anthropocene

Annual Review of Entomology, Journal Year: 2019, Volume and Issue: 65(1), P. 457 - 480

Published: Oct. 14, 2019

Insect declines are being reported worldwide for flying, ground, and aquatic lineages. Most reports come from western northern Europe, where the insect fauna is well-studied there considerable demographic data many taxonomically disparate Additional cases of faunal losses have been noted Asia, North America, Arctic, Neotropics, elsewhere. While this review addresses both species loss population declines, its emphasis on latter. Declines abundant can be especially worrisome, given that they anchor trophic interactions shoulder essential ecosystem services their respective communities. A factors believed to responsible observed collapses those perceived threatening insects form core treatment. In addition widely recognized threats biodiversity, e.g., habitat destruction, agricultural intensification (including pesticide use), climate change, invasive species, assessment highlights a few less commonly considered such as atmospheric nitrification burning fossil fuels effects droughts changing precipitation patterns. Because geographic extent magnitude largely unknown, an urgent need monitoring efforts, across ecological gradients, which will help identify important causal in declines. This also considers status vertebrate insectivores, reporting bias, challenges inherent collecting interpreting data, increasing abundance.

Language: Английский

---

Worldwide occurrence records suggest a global decline in bee species richness

One Earth, Journal Year: 2021, Volume and Issue: 4(1), P. 114 - 123

Published: Jan. 1, 2021

Language: Английский

---

Interpreting insect declines: seven challenges and a way forward

Insect Conservation and Diversity, Journal Year: 2020, Volume and Issue: 13(2), P. 103 - 114

Published: March 1, 2020

Abstract Many insect species are under threat from the anthropogenic drivers of global change. There have been numerous well‐documented examples population declines and extinctions in scientific literature, but recent weaker studies making extreme claims a crisis drawn widespread media coverage brought unprecedented public attention. This spotlight might be double‐edged sword if veracity alarmist decline statements do not stand up to close scrutiny. We identify seven key challenges drawing robust inference about declines: establishment historical baseline, representativeness site selection, robustness time series trend estimation, mitigation detection bias effects, ability account for potential artefacts density dependence, phenological shifts scale‐dependence extrapolation sample abundance population‐level inference. Insect fluctuations complex. Greater care is needed when evaluating evidence trends identifying those trends. present guidelines best‐practise approaches that avoid methodological errors, mitigate biases produce more analyses Despite many existing pitfalls, we forward‐looking prospectus future monitoring, highlighting opportunities creative exploitation baseline data, technological advances sampling novel computational approaches. Entomologists cannot tackle these alone, it only through collaboration with citizen scientists, other research scientists disciplines, data analysts next generation researchers will bridge gap between little bugs big data.

Language: Английский

---

The decline of butterflies in Europe: Problems, significance, and possible solutions

Proceedings of the National Academy of Sciences, Journal Year: 2021, Volume and Issue: 118(2)

Published: Jan. 11, 2021

We review changes in the status of butterflies Europe, focusing on long-running population data available for United Kingdom, Netherlands, and Belgium, based standardized monitoring transects. In 8% resident species have become extinct, since 1976 overall numbers declined by around 50%. 20% 1990 country Distribution trends showed that butterfly distributions began decreasing long ago, between 1890 1940, 80%. Flanders (Belgium), 20 extinct (29%), 1992 2007 30%. A European Grassland Butterfly Indicator from 16 countries shows there has been a 39% decline grassland 1990. The 2010 Red List listed 38 482 (8%) as threatened 44 (10%) near (note 47 were not assessed). level analysis indicates average rating is highest central mid-Western Europe lowest far north Mediterranean. causes are thought to be similar most countries, mainly habitat loss degradation chemical pollution. Climate change allowing many spread northward while bringing new threats susceptible species. describe examples possible conservation solutions summary policy needed conserve other insects.

Language: Английский

---

Declines in insect abundance and diversity: We know enough to act now

Conservation Science and Practice, Journal Year: 2019, Volume and Issue: 1(8)

Published: June 22, 2019

Abstract Recent regional reports and trends in biomonitoring suggest that insects are experiencing a multicontinental crisis is apparent as reductions abundance, diversity, biomass. Given the centrality of to terrestrial ecosystems food chain supports humans, importance addressing these declines cannot be overstated. The scientific community has understandably been focused on establishing breadth depth phenomenon documenting factors causing insect declines. In parallel with ongoing research, it now time for development policy consensus will allow swift societal response. We point out this response need not wait full resolution many physiological, behavioral, demographic aspects declining populations. To ends, we primary goals summarized at scales from nations farms homes.

Language: Английский

---

Is the insect apocalypse upon us? How to find out

Biological Conservation, Journal Year: 2019, Volume and Issue: 241, P. 108327 - 108327

Published: Nov. 22, 2019

Language: Английский

---

No net insect abundance and diversity declines across US Long Term Ecological Research sites

Nature Ecology & Evolution, Journal Year: 2020, Volume and Issue: 4(10), P. 1368 - 1376

Published: Aug. 10, 2020

Language: Английский

---

Complex long-term biodiversity change among invertebrates, bryophytes and lichens

Nature Ecology & Evolution, Journal Year: 2020, Volume and Issue: 4(3), P. 384 - 392

Published: Feb. 17, 2020

Language: Английский

---

Moth biomass has fluctuated over 50 years in Britain but lacks a clear trend

Nature Ecology & Evolution, Journal Year: 2019, Volume and Issue: 3(12), P. 1645 - 1649

Published: Nov. 11, 2019

Language: Английский

---

The State of the World's Insects

Annual Review of Environment and Resources, Journal Year: 2020, Volume and Issue: 45(1), P. 61 - 82

Published: May 26, 2020

This article reviews the present state of insects, describing their taxonomic position, cost, and value as well threats to well-being. Insects are an important source both ecosystem services disservices. Recent studies have indicated a worrying decline in insect species, especially flying insects northern temperate region, this has spawned much media attention. Some occurred, it is clear, due agricultural intensification, urbanization, overuse pesticides, global climate change. A would seriously affect that provide. However, there too little data warrant belief all declining everywhere. There pressing need for more basic research on diversity context changing world.

Language: Английский

---