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1.
Ecotoxicol Environ Saf ; 208: 111622, 2021 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-33396142

RESUMEN

The continuous growth in global population since the beginning of the 20th century result in the necessity of food and energy provision favoring the intensive use of agricultural products such as pesticides. Although pesticides are important to prevent losses in the conventional chemically based agriculture, they frequently present side effects, which goes against agricultural production. The use of pesticides cause direct and indirect effects to soil organisms unbalancing essential soil processes (e.g. primary production, organic matter decomposition, nutrient cycling). Under tropical conditions, very little is known regarding the effects of pesticides to terrestrial organisms. Hence, the aim of the present study was to assess the ecotoxicological effects of the herbicide DMA® 806 BR (active ingredient: 2,4-D) and the insecticide Regent® 800 WG (active ingredient: fipronil), on terrestrial plant species (the dicot Raphanus sativus var. acanthioformis and the monocot Allium cepa), and soil invertebrates (the collembolan Folsomia candida and the enchytraeid Enchytraeus crypticus), using natural (NS) and artificial soils (TAS). For both pesticides, negative effects on non-target species were observed at concentrations lower than the doses recommended to prevent pests in sugarcane fields. For both soils, the dicot species was the most affected by the herbicide (R. sativus > A. cepa > F. candida > E. crypticus) and the collembolan species was the most affected by the insecticide (F. candida > E. crypticus = R. sativus = A. cepa). Although the order of the organisms' sensitivity for both pesticides was the same in both soils, results showed that the extent of the effects was soil dependent. Considering the ecologically relevant concentrations tested, and their severe effects to non-target organisms, it may be concluded that the use of fipronil and 2,4-D under recommended conditions may pose a risk to the terrestrial environment.


Asunto(s)
Ácido 2,4-Diclorofenoxiacético/toxicidad , Plaguicidas/toxicidad , Pirazoles/toxicidad , Saccharum/fisiología , Contaminantes del Suelo/análisis , Agricultura , Animales , Artrópodos/efectos de los fármacos , Artrópodos/fisiología , Ecotoxicología , Insecticidas/toxicidad , Oligoquetos/efectos de los fármacos , Oligoquetos/fisiología , Suelo/química
3.
Oecologia ; 195(2): 367-382, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33471200

RESUMEN

Provenance translocations of tree species are promoted in forestry, conservation, and restoration in response to global climate change. While this option is driven by adaptive considerations, less is known of the effects translocations can have on dependent communities. We investigated the relative importance and consistency of extended genetic effects in Eucalyptus using two species-E. globulus and E. pauciflora. In E. globulus, the dependent arthropod and pathogen canopy communities were quantified based on the abundance of 49 symptoms from 722 progeny from 13 geographic sub-races across 2 common gardens. For E. pauciflora, 6 symptoms were quantified over 2 years from 238 progeny from 16 provenances across 2 common gardens. Genetic effects significantly influenced communities in both species. However, site and year effects outweighed genetic effects with site explaining approximately 3 times the variation in community traits in E. globulus and site and year explaining approximately 6 times the variation in E. pauciflora. While the genetic effect interaction terms were significant in some community traits, broad trends in community traits associated with variation in home-site latitude for E. globulus and home-site altitude for E. pauciflora were evident. These broad-scale trends were consistent with patterns of adaptive differentiation within each species, suggesting there may be extended consequences of local adaptation. While small in comparison to site and year, the consistency of genetic effects highlights the importance of provenance choice in tree species, such as Eucalyptus, as adaptive divergence among provenances may have significant long-term effects on biotic communities.


Asunto(s)
Artrópodos , Eucalyptus , Animales , Eucalyptus/genética , Variación Genética , Fenotipo , Árboles
4.
Oecologia ; 195(2): 383-396, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33502629

RESUMEN

Plants growing under reduced water availability can affect insect herbivores differently, in some instances benefitting them. However, the forces mediating these positive impacts remain mostly unclear. To identify how water availability impacts plant quality and multi-trophic interactions, we conducted manipulative field studies with two populations of the specialist herbivore Pieris rapae, and its host plant, Rorippa indica. We found that P. rapae larvae experienced higher survival on R. indica growing under low water availability compared with plants grown under high water availability. Higher survival of eggs and larvae was related to the reduced abundance of other herbivores and natural enemies. Water availability had differential impacts on other members of the herbivore community by altering plant quality. Low water availability decreased the quality of R. indica to most herbivores, as indicated by reduced abundance in the field and decreased relative growth rate in laboratory feeding assays. In contrast, P. rapae larval performance was not affected by sympatric R. indica grown under different water availability. These results indicate that local P. rapae populations possess physiological adaptations to overcome fluctuations in host quality. Our findings illustrate that reduced water availability is beneficial to a specialist herbivore but detrimental to most other herbivores. Our work highlights the complex effects of the arthropod communities associated with plants in determining the impacts of water availability on insect herbivores.


Asunto(s)
Artrópodos , Mariposas Diurnas , Animales , Herbivoria , Insectos , Agua
5.
J Environ Manage ; 278(Pt 1): 111522, 2021 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-33212353

RESUMEN

Examining population dynamics of arthropod communities in habitats neighboring arable lands is essential to understanding how agroecosystems can be engineered to enhance ecosystem services and contribute to sustainable intensification. Arthropods comprise the bulk of faunal biomass on farms, are taxonomically diverse, and are the main drivers of many ecosystem functions. This study aimed to compare arthropod assemblages in revegetated strips of native plants and exotic pastures, and examine taxa of beneficial arthropods in revegetated strips and adjacent pasture in early spring (September 2009) and mid-summer (December 2009-January 2010) on two farms in southeastern Gippsland, Victoria, Australia. Arthropod community assemblages were distinctly different between revegetated strips and adjacent pasture with the exception of functional groups in early spring. Several taxa of beneficial arthropods including Carabidae (ground beetles) and Syrphidae (hoverflies) were of similar abundance in the two habitats. Only Formicidae (ants) were of higher abundances in revegetated strips compared to adjacent pasture in both seasons. Five of the 10 ant genera present, seven spider families and Dolichopodidae flies (long-legged flies) were found exclusively in revegetated strips. Apidae (bees) and Tachinidae (tachinid flies) had higher abundances in revegetated strips compared to 80 m into the adjacent pasture in mid-summer. Lycosidae (wolf spiders) were more abundant along the edge of revegetated strips and 20 m into adjacent pasture compared to the center (core) of revegetated strips and 80 m into pasture. These results illustrate that beneficial arthropods use revegetated strips as refugia and that revegetated strips clearly enhanced biological conservation of arthropods in pasturelands. Relevance of findings to enhanced biological control is also discussed.


Asunto(s)
Artrópodos , Arañas , Animales , Abejas , Biodiversidad , Ecosistema , Humanos , Dinámica Poblacional , Victoria
6.
Sci Total Environ ; 754: 142026, 2021 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-33254949

RESUMEN

Ergene Basin is located in Thrace, Turkey, where industries are densely populated. This study aimed to determine exposure of people living in Ergene Basin (Çorlu and Çerkezköy) to fine and coarse PM, and its potentially toxic element (PTE) content by considering variation in respiratory airway deposition rates with daily activities and PM particle size by employing deposition models of International Commission on Radiological Protection and Multiple Path Particle Dosimetry. Fine and coarse PM samples were collected daily for a year at points in Çorlu and Çerkezköy representing urban and industrial settings, respectively. A questionnaire survey was conducted in the study area to obtain time-activity budgets, and associated variation was included in the health risk assessment by considering time-activity-dependent inhalation rates. The studied PTEs were Al, As, Ba, Cd, Cr, Co, Mn, Ni, Pb, and Se. The mean fine and coarse PM concentrations were measured as 23 and 14 µg/m3 in Çorlu, and 22 and 12 µg/m3 in Çerkezköy, respectively. The only PTE that exceeded acceptable risk in terms of total carcinogenic risk was Cr. Non-carcinogenic risks of all the PTEs including Cr were below the threshold. The use of deposition fractions in the health risk assessment (HRA) calculations was found to prevent overestimation of health risks by at least 91% and 87% for fine and coarse PM, respectively, compared to the regular HRA. Minor differences in risk between Çorlu and Çerkezköy suggest that urban pollution sources could be at least as influential on human health as industrial sources.


Asunto(s)
Contaminantes Atmosféricos , Artrópodos , Oligoelementos , Animales , Monitoreo del Ambiente , Humanos , Tamaño de la Partícula , Material Particulado , Medición de Riesgo , Turquia
7.
Mol Phylogenet Evol ; 154: 106995, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33164871

RESUMEN

Phylogenetic assessments of functional traits are important for mechanistically understanding the interactions between organisms and environments, but such practices are strongly limited by the availability of phylogenetic frameworks. The tomocerin springtails are an ancient, widespread and ecologically important group of terrestrial arthropods, whereas their phylogeny and trait evolution remained unaddressed. In the present study, we conducted the first comprehensive phylogenetic reconstruction of Tomocerinae, based on a multi-loci molecular dataset covering all major lineages within the subfamily, using Bayesian inference (BI), maximum-likelihood (ML) and maximum-parsimony (MP) approaches. Divergence time was estimated and ancestral character state reconstruction (ACSR) was performed to trace the evolutionary history of five ecomorphological traits correlated with sensory and locomotory functions. Our results support the monophyly of Tomocerinae, and indicate that current classification of Tomocerinae only partially reflects evolutionary relationships, notably the commonest and speciose genus Tomocerus is polyphyletic. The subfamily probably originated in Early Cretaceous and diversified in two Cretaceous and one Eocene radiation events. As indicated by the evolutionary patterns of functional traits, multiple ecological divergences took place during the diversification of Tomocerinae. The study suggests a potential underestimation of ecological divergence and functional diversity in terrestrial arthropods, calls for an update of present trait databases, and demonstrates the value of macroevolutionary knowledge for improving the trait-based ecology. In addition, Tomocerus, Tomocerina and Tritomurus are redefined, a new genus Yoshiicerusgen. n. and new subgenera Coloratomurussubgen. n., Ciliatomurussubgen. n., Striatomurussubgen. n. and Ocreatomurussubgen. n. are described in the appendix.


Asunto(s)
Artrópodos/clasificación , Artrópodos/genética , Biodiversidad , Filogenia , Carácter Cuantitativo Heredable , Animales , Teorema de Bayes , Funciones de Verosimilitud , Fenotipo , Factores de Tiempo
8.
Chemosphere ; 263: 128245, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33297192

RESUMEN

Collembolans comprise one of the most abundant groups of soil invertebrates within the arthropods. The parthenogenetic species Folsomia candida (Willem, 1902) is the most well-studied representative, being used since the beginning of the 1960s as a model organism for assessing toxicity of chemicals in soil. In this paper we aimed at answering three questions by exposing four different species of springtails (F. candida, Folsomia fimetaria, Sinella curviseta and Heteromurus nitidus) to the neonicotinoids imidacloprid and thiacloprid: i) How representative as a model organism is F. candida for species of springtails that reproduce sexually? (ii) How suitable are other species of springtails to be used as model organisms for ecotoxicological testing? (iii) Is it possible to use the life history of these species to extrapolate the impact of neonicotinoids on the population level? Our results showed that F. candida is a good model organism, despite being the most sensitive species tested, when analysing both endpoints - survival and reproduction. The tests performed with S. curviseta and H. nitidus showed that they could be used as surrogates in ecotoxicity tests, and also to predict how their population might be affected after being exposed to chemicals. The adjustments made to the test performed with F. candida: introducing adults (20-22 days old) into the test jars and exposing them for 21 days instead of 28 days, proved to be as efficient as the standardized test guideline (OECD 232, 2009).


Asunto(s)
Artrópodos , Contaminantes del Suelo , Animales , Invertebrados , Neonicotinoides/toxicidad , Reproducción , Suelo , Contaminantes del Suelo/toxicidad
9.
Sci Total Environ ; 761: 144097, 2021 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-33360133

RESUMEN

To date, numerous studies have focused on the toxicity of antimony (Sb) to soil-dwelling organisms at the individual level. However, little is known about Sb-caused molecular level toxicity. Here, an integrated transcriptomics and metabolomics approach was used to better reveal toxicity of Sb(V) to springtails Folsomia candida considering environmentally relevant speciation of Sb. No significant effects of Sb(V) on survival, reproduction and growth of springtails were observed using the ISO standard test. Transcriptomics analysis identified 1015 and 3367 differentially expressed genes (DEGs) after 2 and 7 d of exposure, indicating an increasing transcriptomal changes with time. Significantly enriched top GO (Gene Ontology) terms (chitin metabolic process, chitin binding and extracellular region) were shared between the two time exposure groups. However, no enriched KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway was shared, with fatty acid metabolism and apoptosis-fly being the most significant pathway, respectively. Metabolomics analysis identified 155 differential changed metabolites (DCMs) in springtails after 7 d of exposure. Antifolate resistance was the most significantly enriched pathway, in which dihydrofolic acid was up-regulated and three purine nucleotides (adenosine 5'-monophosphate, inosine 5'-monophosphate, guanosine 5'-monophosphate) were down-regulated. This indicated obvious repression of DNA replication, which was also observed by transcriptomics. Additionally, metabolites level related to chitin, oxidative stress, and protein metabolism significantly changed, and these metabolites could also support and confirm main transcriptomic results. Thus, the combination of multiomics facilitated better understanding of the molecular level of toxicity of Sb(V) in Collembola.


Asunto(s)
Artrópodos , Contaminantes del Suelo , Animales , Metabolómica , Suelo , Contaminantes del Suelo/toxicidad , Transcriptoma
10.
J Fam Pract ; 69(10): E1-E9, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-33348350

RESUMEN

A thorough history and physical are key to proper diagnosis and treatment following a patient's encounter with an insect, arachnid, or other arthropod.


Asunto(s)
Arácnidos/parasitología , Artrópodos/parasitología , Mordeduras y Picaduras/diagnóstico , Mordeduras y Picaduras/terapia , Medicina Familiar y Comunitaria/normas , Evaluación de Síntomas/normas , Garrapatas/parasitología , Animales , Humanos , Guías de Práctica Clínica como Asunto , Factores de Riesgo
11.
Zootaxa ; 4861(4): zootaxa.4861.4.2, 2020 Oct 20.
Artículo en Inglés | MEDLINE | ID: mdl-33311205

RESUMEN

Forty-four specimens of the millipede Narceus gordanus Chamberlin, 1943 (Spirobolida: Spirobolidae) were collected from Alachua, Citrus, Hernando, and Marion counties in peninsular Florida. Morphometric data were recorded for each. Nematodes were dissected from the intestine of each individual and sorted into morphotaxa. Heth pivari n. sp. (Oxyuridomorpha: Ransomnematoidea: Hethidae) was found in 33 (75%) of dissected N. gordanus and examined with brightfield, differential interference contrast, phase contrast and scanning electron microscopies. LSU rDNA sequences of representative males and females of H. pivari n. sp. were analyzed and compared to sequences of nematodes in the infraorder Rhigonematomorpha. Heth mauriesi, an introduced species, also was sequenced. Females of H. pivari n. sp. differ from those of other Heth spp. in having smooth, button-like somatic and cervical papillae and shallow, shield-like cervical collars. Males have slit-like or narrowed, rather than circular, stomal openings. Heth pivari n. sp. is the first species of this genus found in an indigenous millipede north of Mexico. Keys based on female cervical ornamentation are provided to differentiate the 52 known Heth spp.


Asunto(s)
Artrópodos , Nematodos , Animales , ADN Ribosómico , Femenino , Masculino , Nematodos/genética , Estados Unidos
12.
Zootaxa ; 4885(4): zootaxa.4885.4.4, 2020 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-33311259

RESUMEN

Two new species of bristletails of the family Machilidae are described from caves in the Western Caucasus (troglophile Coryphophthalmus troglophilus sp. nov.) and in the Eastern Carpathians (trogloxene Trigoniophthalmus ukrainensis sp. nov.). The main morphological adaptations of C. troglophilus sp. nov. to life in caves include green eye color; weak body pigmentation; well-developed arolium and claws; relatively long cerci, tarsae and tibiae of the hind legs; long apical needles of the urostyli; large sublateral spines on urocoxites IX. C. troglophilus sp. nov. resembles C. abchasicus (Kaplin, 2017), but they are distinguishable in color of eyes, ratio of eye contact to length, length of cerci, structures of the labial palps, legs, urocoxites IX, ovipositor, and parameres. Trigoniophthalmus ukrainensis sp. nov. has no recognized morphological adaptations to life in caves. This species resembles T. alternatus (Silvestri, 1910), but they are easily distinguished in the number of annuli in distal chains of flagellum, ratio of width to length of paired ocelli, chaetotaxy of male maxillary and labial palps.


Asunto(s)
Artrópodos , Animales , Insectos , Masculino , Pigmentación , Ucrania
13.
Zootaxa ; 4894(2): zootaxa.4894.2.7, 2020 Dec 09.
Artículo en Inglés | MEDLINE | ID: mdl-33311086

RESUMEN

The original description of the Tasmanian endemic genus Tasmanura Womersley was based on a misunderstanding of its gross morphology. This probably led to a misidentification of the genus from South Africa. To prevent similar misidentifications, the genus is redescribed here from the holotype and comments made on its distribution and habitat as well as current and future risks to its persistence.


Asunto(s)
Artrópodos , Animales , Ecosistema
14.
Zootaxa ; 4890(4): zootaxa.4890.4.1, 2020 Dec 04.
Artículo en Inglés | MEDLINE | ID: mdl-33311103

RESUMEN

A new species of Seira from Koh Rong Sanloem Island, Cambodia, as well as its mitochondrial genome information, are herein described. Seira sanloemensis sp. nov. has a similar colour pattern compared to nine other species of Seira worldwide distributed, but the dorsal chaetotaxy is more similar to S. arunachala Mitra from India, S. camgiangensis Nguyen from Vietnam, and S. gobalezai Christiansen Bellinger from Hawaii. However, the new species differs from these species by dorsal chaetotaxy of head, Th II-III and Abd II, collophore chaetotaxy, and morphology of the empodial complex. This is the third Collembola species described for Cambodia. Its assembled incomplete mitogenome from MGI reads, has a length of 13,953 bp, and contains all protein-coding genes except for tree tRNAs missing; the gene order is the same of the Pancrustacean ancestral gene order. Based on the alignment of the 13 coding genes, a maximum likelihood phylogenetic tree of medium bootstrap values suggested that the Asian Seira species can represent a different lineage from the Neotropical Seirinae, but further biogeographic and divergence estimation analyses plus the inclusion of more Asian taxa are necessary to test such hypothesis.


Asunto(s)
Artrópodos , Genoma Mitocondrial , Animales , Cambodia , Filogenia
15.
Zootaxa ; 4861(2): zootaxa.4861.2.8, 2020 Oct 16.
Artículo en Inglés | MEDLINE | ID: mdl-33311228

RESUMEN

The male of Glyphiulus formosus (Pocock, 1895) is described for the first time based on specimens collected from Shenzhen, Guangdong, China. According to the male sexual characters, this species is verified to be a member of the G. javanicus group. In addition, a DNA barcode of the partial COI gene of G. formosus is provided.


Asunto(s)
Artrópodos , Animales , China , Masculino
16.
Zootaxa ; 4885(2): zootaxa.4885.2.3, 2020 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-33311276

RESUMEN

Knowledge on Poduromorpha fauna from the littoral of Rio de Janeiro mainly come from studies conducted in "restinga" areas of Itaipuaçu, Maricá, and Marambaia. In this study two "restinga" areas were sampled for the first time to increase the taxonomic knowledge of Poduromorpha in littoral areas of Rio de Janeiro: Costa do Sol State Park and Restinga de Jurubatiba National Park, located respectively at Lake Region ("região dos lagos") and at northern Rio de Janeiro State. The analysis of the material showed the presence of six families, 14 genera and 20 species. All records are new for both areas; Neanuridae had the highest diversity, with seven genera and 10 species. One of them, Paleonura Cassagnau, 1982, was registered for the first time in the littoral of Rio de Janeiro. A key was proposed for the Poduromorpha genera found in the littoral of Rio de Janeiro.


Asunto(s)
Artrópodos , Animales , Brasil , Lagos
17.
Zootaxa ; 4869(3): zootaxa.4869.3.8, 2020 Nov 03.
Artículo en Inglés | MEDLINE | ID: mdl-33311355

RESUMEN

Sibiriulus mikhaljovae sp. nov. is described from the Altai Province, southwestern Siberia, Russia. This new species differs from its congeners mainly by the presence of a longitudinal crest inside the apical fovea of the gonopod mesomere. Brief descriptive remarks concerning several previously described Sibiriulus species allow for the definition of the genus to be supplemented and refined. All eight currently known species of Sibiriulus are keyed.


Asunto(s)
Artrópodos , Distribución Animal , Animales , Federación de Rusia , Siberia
18.
Zootaxa ; 4868(1): zootaxa.4868.1.2, 2020 Oct 23.
Artículo en Inglés | MEDLINE | ID: mdl-33311407

RESUMEN

The genus Carlogonus Demange, 1961, is diagnosed, and its relationship with other members of the Harpurostreptini Hoffman, 1980 is discussed. A new species, Carlogonus gayathri sp. nov. is described and illustrated from the southern Indian State of Kerala, and its DNA barcoding data is presented. Phylogenetic analysis based on mtDNA sequence data revealed that Carlogonus is sister-taxon to Thyropygus Pocock, 1894. Two species-groups are recognised in Carlogonus: the exaratus-group is characterised by a single tibial spine on the gonopod, while the acifer-group has paired tibial spines. A dichotomous key is presented for the known Carlogonus spp., and the current distribution of the genus is mapped.


Asunto(s)
Artrópodos , Animales , ADN Mitocondrial , India , Filogenia
19.
Artículo en Inglés | MEDLINE | ID: mdl-33374532

RESUMEN

The expansion of agriculture and intensive mechanized production have resulted in the loss of habitats and biodiversity, which has led to the loss of ecological services such as the biological control of pests and diseases, and insect-borne pollination. Current studies mainly focus on the impact of small-scale crop diversity (such as intercropping) on ecological service but lack research on the effects of crop diversity at the landscape scale. In this study, vegetation-dwelling arthropods in naked oat (Avena chinensis) fields under different planting patterns were collected at different growth stages by standardized sweep netting sampling, and the differences in arthropod communities and temporal dynamics were analyzed. Taking this information as an example, the effects of crop diversity at the landscape scale caused by different planting patterns on arthropod communities were studied. It was found that herbivores were the most abundant functional group in the arthropod community in naked oat fields, accounting for 70.13% of the total abundance, followed by natural enemies, accounting for 23.45%, and, finally, other insects. The abundance and species richness of natural enemies in naked oat fields under diversified planting pattern were significantly higher than those under intensive planting pattern, while the abundance and species richness of herbivorous pests showed no significant difference between the two planting patterns. Planting patterns significantly affected the composition and structure of arthropod communities in naked oat fields. Significantly higher ratio of natural enemy to pest and more diverse natural enemies under the diversified planting pattern have shown better biological control potential and the significance of biodiversity protection.


Asunto(s)
Artrópodos/clasificación , Avena , Biodiversidad , Animales , Ecosistema , Herbivoria
20.
Anim Cogn ; 23(6): 1041-1049, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33170438

RESUMEN

The feats of arthropods, and of the well-studied insects and crustaceans in particular, have fascinated scientists and laymen alike for centuries. Arthropods show a diverse repertoire of cognitive feats, of often unexpected sophistication. Despite their smaller brains and resulting lower neuronal capacity, the cognitive abilities of arthropods are comparable to, or may even exceed, those of vertebrates, depending on the species compared. Miniature brains often provide parsimonious but smart solutions for complex behaviours or ecologically relevant problems. This makes arthropods inspiring subjects for basic research, bionics, and robotics. Investigations of arthropod spatial cognition have originally concentrated on the honeybee, an animal domesticated for several thousand years. Bees are easy to keep and handle, making this species amenable to experimental study. However, there are an estimated 5-10 million arthropod species worldwide, with a broad diversity of lifestyles, ecology, and cognitive abilities. This high diversity provides ample opportunity for comparative analyses. Comparative study, rather than focusing on single model species, is well suited to scrutinise the link between ecological niche, lifestyle, and cognitive competence. It also allows the discovery of general concepts that are transferable between distantly related groups of organisms. With species diversity and a comparative approach in mind, this special issue compiles four review articles and ten original research reports from a spectrum of arthropod species. These contributions range from the well-studied hymenopterans, and ants in particular, to chelicerates and crustaceans. They thus present a broad spectrum of glimpses into current research on arthropod spatial cognition, and together they cogently emphasise the merits of research into arthropod cognitive achievements.


Asunto(s)
Artrópodos , Animales , Cognición , Ecología , Ecosistema , Insectos
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