Plecoptera - Science topic

We modeled feeding of the Atlantic salmon (Salmo salar) parr to understand the role of global (cross‐continental) and regional (river) spatial scales for delineating feeding patterns. The diet composition differed between Eurasia and North America populations. Geographic location (latitude and elevation) had an influence for the most common prey (E...

This paper contains information on the records of bottom macroinvertebrates, fish, amphibians, reptiles, birds and mammals collected during a field expedition to the valley of the Shokhdara River (in the vicinities of town of Khorog city) near its mouth and confluence with Panj River in autumn 2019 – spring 2020. According to the results of the stu...

Besdolus bicolor (Navás, 1909) is identified for the first time in France. Surveys resulted in the collection of individuals from historically known or more recently stations, as well as the examination of specimens stored in collections (previously identified as “Besdolus ventralis”). The species is present in the southern third of France. Its dis...

Highlights • Anthropogenic activities and surface runoffs are major factors contributing to the reservoir water quality. • Dissolved oxygen, biochemical oxygen demand, nitrate and phosphate influenced the abundance of aquatic invertebrates. • Odonata was the most abundant insect group inhabiting the reservoir. • Pollution-intolerant groups such as...

The rapid loss of biodiversity in freshwater systems asks for a robust and spatially explicit understanding of species' occurrences. As two complementing approaches, habitat suitability models provide information about species' potential occurrence, while environmental DNA (eDNA) based assessments provide indication of species' actual occurrence. I...

Background The family Nemouridae, belonging to Plecoptera, comprises 21 genera and over 700 species found globally, with the greatest diversity observed in temperate regions. Nemoura Latreille, 1796 and Amphinemura Ris, 1902 are two largest genera of the family with the highest diversity in China. New information Two new species of Nemoura Latreil...

Some of the aquatic insects can be used as bioindicators for water pollution and as well as in a medicine and food for others animals, can play an important role in the ecosystem. The aim of this study was to investigate the biological index and aquatic insect fauna in Meshkin shahr Khiyav Chayi River in Ardabil Province. This cross-sectional study...

Background Hainan Province is an island in the south of China and belongs to the Oriental Region. It has a unique geographical location and superior climatic conditions, providing a good living environment for Leuctridae insects. However, the species richness of the stonefly family Leuctridae in Hainan is low. Two species in total have been recorde...

The freshwater ecosystems in Kosovo have undergone significant degradation in recent years due to various anthropogenic pressures, including sewage effluents, industrial discharge, water intakes, and riverbed degradation. Consequently, the populations of freshwater biota, including bioindicators, have been heavily impacted by these activities. Thi...

Potoki Bieszczad i Pogórza Przemyskiego należą do słabo poznanych terenów pod kątem róznorodności biologicznej owadów wodnych, takich jak jętki (Ephemeroptera) i widelnice (Plecoptera). Przeprowadzane badania dostarczą wiedzy dotyczącej zasadności poszerzenia ochrony terenowej o takie miejsca jak otulina Bieszczadzkiego Parku Narodowego, czy obszar...

The alpine newt is an opportunistic predator whose diet consists predominantly of aquatic and terrestrial invertebrates with Crustacea, Plecoptera, Collembola, Diptera, Isopoda and Gastropoda being the predominant prey groups. Consumption of amphibian eggs and larvae are another common food source. Here, we report the first documented case of adult...

In Medvednica Nature Park, near Croatia's capital Zagreb, urbanisation significantly impacts the fauna. Comprehensive field research has never been conducted in this area, despite the presence of diverse microhabitats and the discovery of several rare species previously unknown in the Croatian fauna. This study provides the Park with first insight...

Human activities are a significant threat to the health of river ecosystems, especially in developing countries. In Thailand, benthic macroinvertebrates have been widely used for bioassessment for aquatic ecosystem evaluation. However, most of them focuses on streams, which may not be applicable to large rivers. This study aimed to fill this gap by...

Haiku are short poems, each composed of about 10 words, that typically describe moments in nature. People have written haiku since at least the 17th century, and the medium continues to be popular with poets, amateurs, educators, and students. Collectively, these poems represent an opportunity to understand which aspects of nature—e.g., which taxa...

The extent to which the sequence and timing of important events on Earth have influenced biological evolution through geological time is a matter of ongoing debate. In this context, the phylogenetic history of aquatic insects remains largely elusive, and our understanding of their chronology is fragmentary and incomplete at best. Here, after gather...

DNA barcoding is an essential tool in modern biodiversity sciences. Despite considerable work to barcode the tree of life, many groups, including insects, remain partially or totally unreferenced, preventing barcoding from reaching its full potential. Aquatic insects, especially the three orders Ephemeroptera, Plecoptera, and Trichoptera (EPT), are...

The aim of the study was to test the significance of the EPT index in the water quality assessment of three types of water bodies in hilly and mountainous region of Serbia. The aquatic macroinvertebrate community was dominated by the group of insects, of which 95 taxa represent the EPT group. We compared the obtained values of biological indices us...

Представлены первые сведения о структуре, биомассе и плотности беспозвоночных донных сообществ ненарушенных природных водотоков заповедника «Комсомольский», протекающих в зоне хвойно- широколиственного леса. Выявлено 334 таксона из 31 систематической группы организмов. Средние показатели плотности бентоса составили 7719 экз./м2, биомассы — 12,8 г/м...

The complete mitochondrial genome (mitogenome) of Neoperla bimaculata was sequenced and annotated in this study. We found that the mitogenome of N. bimaculata is 15,774 bp in length with an A + T content of 64.3%. It exhibits the classic structure of a mitogenome. Most protein-coding genes (PCGs) of the mitogenome initiate with the standard start c...

Currently, the classification system of 2 subfamilies within Nemouridae has been widely accepted. However, monophyly of 2 subfamilies has not been well supported by molecular evidence. To date, only mitogenomes from genus Nemoura of the subfamily Nemourinae were used in previous phylogenetic studies and produced conflicting results with morphologic...

This review synthesises the literature on ontogenetic and seasonal changes in feeding patterns of nine genera of the family Salmonidae (Coregonus, Prosopium, Stenodus, Hucho, Oncorhynchus, Salmo, Salvelinus, Brachymystax and Thymallus), disentangling the general mechanisms driving those changes and the common dietary patterns. Stream-dwelling salmo...

This study, centered on the Asan Wetland in Uttarakhand, examines the ecological impact of heavy metals on aquatic insects biodiversity. It highlights the detrimental effects of metals like chromium, mercury, and lead, stemming from natural and anthropogenic sources, on aquatic insects diversity. Aquatic insects, particularly sensitive to water qua...

Climate change involves increases in mean temperature and changes in temperature variability at multiple temporal scales but research rarely considers these temporal scales. The climate variability hypothesis (CVH) provides a conceptual framework for exploring the potential effects of annual scale thermal variability across climatic zones. The CVH...

The aim of the study was to test the significance of the EPT index in the water quality assessment of three types of water bodies in hilly and mountainous region of Serbia. The aquatic macroinvertebrate community was dominated by the group of insects, of which 95 taxa represent the EPT group. We compared the obtained values of biological indices us...

Hydromorphological degradation is one of the most common stressors to freshwater ecosystems nowadays. Rivers lose riparian vegetation, habitat heterogeneity, natural flow velocity, etc., due to hydromorphological alterations. We analyzed macroinvertebrate communities in a wide range of hydromorphological conditions – from near natural sites to sign...

Schlagwörter: Isoperla, Plecoptera, Erzgebirge, Sachsen, Deutschland, Morphologie, Determination, Verbreitung, Faunistik, Trommelsignale, Männchen, Weibchen Keywords: Isoperla, Plecoptera, Erzgebirge, Saxony, Germany, morphology, identification, distribution, faunistics, timbal signal, male, female Die Ergebnisse der Untersuchung zum Vorkommen von...

The objective of this work is to contribute to the knowledge of the freshwater macroinvertebrate communities of Los Tuxtlas, Veracruz, Mexico. For this region, there is only limited knowledge of its aquatic crustaceans and mollusks. A total of 13,399 freshwater macroinvertebrates were collected from four river sections in each of the three sub-basi...

Background Euholognatha is a monophyletic group within stoneflies comprised by a superfamily Nemouroidea and a family Scopuridae. Based on morphological data, the family-level phylogenetic relationships within Euholognatha are widely accepted, but there is still controversy among different molecular studies. To better understand the phylogeny of al...

Abstrak Penelitian ini bertujuan untuk menganalisis keanekaragaman makroinvertebrata di Sungai Kampai, Bengkulu. Pengambilan sampel dilakukan di tiga stasiun, yaitu Muara Simpur, Pagar Agung, dan Lubuk Gio dengan dua kali periode sampling setiap stasiun, yaitu April 2019 mengikuti puncak musim hujan dan September 2019 mengikuti puncak musim kemarau...

This study provides data on chromosome number (2n♂♀=26), sex determination mechanism (XY♂/XX♀), C-banding pattern, distribution of clusters of telomeric TTAGG repeats and 18S ribosomal DNA in the karyotype of the stonefly Skwala compacta (McLachlan, 1872). For the first time in the history of stoneflies cytogenetics, we provide photos of the chromo...

A new species of Gripopteryginae stonefly, Tupiperla claudius sp. nov. (holotype male deposited in DZUP: Brazil, Paraná State, Piraquara municipality, Pico do Marumbi State Park), is described and diagnosed based on seven adult males. The new species differs from its congeners by the long T10 extension, dorsally with straight lateral margins and ti...

Many river ecosystems in the boreal zone have faced remarkable changes due to intensive human activities, including land‐use changes in the catchments and channelization. Recently, restoration efforts have increased, hoping to restore a more natural hydromorphology. We studied the community structure of benthic macroinvertebrates (zoobenthos) in se...

Es werden alle Nachweise der Steinfliege Taeniopteryx schoenemundi bis Ende März 2023 aufgeführt und die Funde aller in Sachsen-Anhalt nachgewiesenen Arten der Gattung in Verbreitungskarten dargestellt. All detections of the stonefly Taeniopteryx schoenemundi in Saxony-Anhalt until the end of March 2023 are listed, and the previous findings of all...

Potholes are microhabitats in riverine ecosystems that substantially contribute to the unique regional faunal diversity and community composition. Investigations on the ecological status of potholes in riverine habitats are very scanty. The present work is of utmost importance, particularly as a pioneering study to evaluate the health status of riv...

Free-flowing rivers are highly valuable to understand the taxonomic and functional community structure of organisms that inhabit fluvial ecosystems. We investigated patterns of macroinvertebrate community composition and food web structure using stable isotopes (δ13C and δ15N), including potential environmental drivers, over a free-flowing river co...

Austral Yungas cloud forest (Southern Bolivia and NW Argentina) is known for its high diversity, steep landscape and low accessibility. Anacroneuria Klapálek (Plecoptera: Perlidae) species in this ecoregion have been seldom studied. We aim to know its species diversity (based on adult characters) and explore larval characters important for their re...

Within the upper Neretva catchment in Bosnia several hydropower plants are projected. Between 28.6. and 1.7.2022 a baseline survey was initiated to screen the area regarding the diversity of aquatic insects and its linked conservation value. In total, 59 Trichoptera species, ten Plecoptera species, 19 Ephemeroptera and 16 Diptera (Tipuloidea) speci...

The knowledge about stoneflies of the Balkan Peninsula is still not complete, with many areas poorly investigated. During this investigation, we collected adult stonefly specimens from Kosovo, Albania, North Macedonia, Serbia and Montenegro during the period 2014-2018. In total, we found 42 species belonging to 14 genera and 7 families. Five specie...

Penilaian biologis menjadi salah satu pilihan didalam menentukan kualitas sungai, dalam hal ini adalah terkait dengan kesehatan sungai. Indikator penilaian biologis menggunakan makroinvertebrata akuatik dengan lokasi penelitian di Sungai Pusur yang terletak di Kabupaten Boyolali dan Kabupaten Klaten, Provinsi Jawa Tengah, Indonesia. Penggunaan makr...

We present six new localities of the rare perlid Helenoperla malickyi: one in Greece and fi ve in Albania, in addition to the two Greek localities hitherto known. The distribution of the species is illustrated on a map. We provide pictures of the larva and state that it has two years long development. We characterize the habitats and present the li...

This paper provides 422 data of 43 Plecoptera species from 114 sampling sites, collected between 29.05.1997 and 03.12.2023. Leuctra handlirschi and Isoperla sudetica are new to Hungary.

List of the Plecoptera species in British Columbia

Across Japan, populations of Sika deer (Cervus nippon) have grown rapidly over recent decades, and Odaigahara has particularly high densities of Sika deer. In Odaigahara, this overpopulation has led to changes in stream flow and riparian landscapes, with formerly diverse communities of dwarf bamboo growing increasingly homogenous. Lower-layer veget...

Biological assessment has become one of the options in determining river quality, particularly concerning river health. Biological assessment indicators use aquatic macroinvertebrates, with the research location in the Pusur River, located in the Boyolali and Klaten Regencies, Central Java Province, Indonesia. The use of macroinvertebrates as indic...

Emu is a tropical stream in Northcentral Nigeria that serves as the water source for drinking and other domestic activities for Kusotachin communities, Niger State, Nigeria. This study evaluates the impact of anthropogenic activities on the ecological health of the stream using physicochemical parameters and macroinvertebrate assemblages. Macroinve...

The distribution of the genus Paraleuctra (Hanson, 1941) in Canada, based on the examination of specimens in the Canadian National Collection of Insects, Arachnids and Nematodes, the University of Guelph Barcode of Life Data System website collection, and the Royal British Columbia Museum is presented. Canadian specimen records from the Illinois Na...

Für die Lausitzer Neiße, dem östlichsten Fluss Deutschlands, wurden die Erfassungsdaten von Eintags-, Stein- und Köcherfliegen der letzten 20 Jahre (2001-2021) zusammenfassend ausgewertet. Dabei konnten insgesamt 131 Arten nachgewiesen werden, die sich auf 40 Eintagsfliegenarten, 11 Steinfliegenarten und 80 Köcherfliegenarten aufteilen. Eine Auswer...

Entre junio y octubre de 2003 se llevaron a cabo estudios relacionados con aspectos ambientales y ecológicos de las comunidades de peces y macroinvertebrados acuáticos en tres estaciones del río Tutunendo, Departamento del Chocó, Colombia. Se estudiaron algunas características y variables fisicoquímicas como conductividad, pH, oxígeno disuelto y te...

Aim We evaluated the effects of native vegetation and agricultural activities on functional characteristics of aquatic insects’ assemblages in Atlantic Forest streams southern Brazil. Methods We collected information on land uses, riparian zone structural characteristics, and limnological variables of ten streams to characterize their environmental...

Subfossil remains of aquatic invertebrates found in lacustrine sediments are useful paleoenvironmental indicators. Strongly scleroticized chitinous body parts from the exoskeleton or exuviae from invertebrates are often the most resistant to degradation during syn- and post-depositional processes. Invertebrate mandibles and body parts that superfic...

Water quality and self-purification capacity of the Disam River (Iran) was studied using macroinvertebrate-based indices and Qual2kw mathematical modeling tools. We evaluated the water quality and self-purification status of the Disam River through biotic indices of macroinvertebrates and mathematical modeling (Qual2kw). A total of 10,370 macroinve...

The study was carried out to evaluate the water quality of Dura River using the macroinvertebrate community within the Kibale National Park perimeter. Samples were collected from four sites on Dura River using kick nets and pond nets. Two of the study sites had high diversity of macroinvertebrates and were located within a semi-pristine forest, whi...

Background The genus Illiesonemoura Baumann, 1975 (Plecoptera, Nemouridae) is a small-sized stonefly with slender and curved embranous cerci. Currently, 18 species of the genus are known worldwide, mainly distributed in the Palaearctic and Oriental Regions, with a total of two species known to China. New information Three new species of Illiesonem...

The stonefly suborders Arctoperlaria and Antarctoperlaria reflect the current division of the diversity of this insect order between the Northern and Southern Hemispheres. However, there are several exceptions to this pattern, the most notable being the family Notonemouridae, which is phylogenetically deeply subordinate within the northern Arctoper...

Stream macroinvertebrate assemblages are shaped by natural and human‐related factors that operate through complex hierarchical pathways. Quantifying these relationships can provide additional insights into stream ecological assessment. We applied a structural equation modeling framework to evaluate hypothesized pathways by which watershed, riparian...

The Republic of Kosovo has some trustworthy information about aquatic insects of the orders Ephemeroptera, Plecoptera, and Trichoptera (EPT) and the population status of the species that live in the country's freshwater habitats. During the past years, several studies related to the taxonomy, ecology, and population dynamics of the EPT have been co...

Flight is a key feature of the reproduction and dispersal of emerging aquatic insects. However, morphological measurements of insect flight are mostly available for terrestrial taxa and dragonflies, while aquatic insects have been poorly investigated. We analyzed seven flight-related morphological parameters of 32 taxa belonging to five orders of e...

Na ecologia entender e quantificar as taxas de substituição de espécies entre distintas localidades é essencial para a elaboração de uma ciência mais concisa e preditiva. Entretanto, pouco se tem conhecimento sobre como essa substituição ocorre entre localidades ambientalmente semelhantes e como essa taxa pode também estar relacionado a integridade...

We examined Chinese stonefly specimens of the Rhopalopsole vietnamica ‘western assemblage’ group. A new species from Hainan Province, R. bawanglinga Li, Li & Yang, sp. nov. is described and illustrated from male and female adults, and it is compared to closely related taxa. The hitherto unknown female of R. hainana Li & Yang, 2010 is described. Mor...

Biodiversity and faunistic studies on the insects of the Gwaneumgol wetland, located in Gayasan National Park, were carried out from April to October 2022. As a result of the investigation, a total of 143 species of insects, belonging to 70 families and 14 orders, were collected from this study area. Among the insects, Lepidoptera (32 species, 22.4...

Water resources are supplied under strong anthropic pressures and result in several problems of water contamination in the world, which necessitates the use of methodologies for their evaluation. Thus, this research aimed to identify the biomonitoring indices based on macroinvertebrates in the evaluation of the quality of the water used and to iden...

Sungai Legundi merupakan sungai yang mengalir melintasi wilayah Kabupaten dan Kota Probolinggo sepanjang 12,5 km. Perairan Sungai Legundi dimanfaatkan masyarakat untuk kegiatan domestik, pertanian, dan perikanan. Penelitian ini bertujuan untuk mengetahui kualitas air dengan menggunakan Indeks Integritas Biotik Makrozoobentos dan mengetahui korelasi...

Two species of the genus Sweltsa Ricker, 1943 from China are described and figured as new to science. The morphological distinction between the new species and their similar relatives is discussed.

Zusammenfassung Von 2018 bis 2022 erfolgten Kartierungen der Trichoptera im „Naturschutzgebiet Presseler Heidewald- und Moorgebiet“ in der Dübener Heide in Nordsachsen hauptsächlich durch Lichtfang. Dabei wurden auch Ephemeroptera, Plecoptera, Megaloptera, semiaquatische Neuroptera und aquatische Coleoptera erfasst. Die dabei gewonnenen Ergebnisse...

Large rivers are difficult to sample due to their size yet critical to monitor because humans heavily rely upon and alter them. Aquatic invertebrates are commonly used to assess the ecosystem quality of streams, but methods to sample these animals in large rivers are still being developed. We sampled aquatic invertebrates using two methods in the S...

End-point evaluation of stream health is essential for the quantification of water quality. To this end, many Multi-Metric Indices (MMIs) have been developed to quantify water quality. The most extensive work has occurred in North America and Europe, while other areas of the world are in development. In this study, we compared the use of relevant p...

River manipulation and degradation can cause detrimental impacts on aquatic insect communities. River restoration projects seek to mitigate these human disturbances. Assessing the efficacy of river restoration remains an important goal for river managers and conservation biologists so that improved restoration methods can be used in the future. Fro...

Приводятся оригинальные данные о таксономическом составе донных беспозвоночных 59 водотоков заповедника «Комсомольский» (Хабаровский край). Обнаружено 334 вида и формы (Plathelminthes, Nemathelminthes, Annelida, Arthropoda, Mollusca), включая 316 ранее не указанных для района исследований. Наиболее разнообразно представлены личинки амфибиотических...

Despite lotic systems demonstrating high levels of seasonal and spatial variability, most research and biomonitoring practices do not consider seasonality when interpreting results and are typically focused at the meso‐scale (combined pool/riffle samples) rather than considering habitat patch dynamics. We therefore sought to determine if the sampli...

Ephemeroptera, Plecoptera and Trichoptera are three orders of freshwater macroinvertebrates with a short terrestrial adult life-stage that they use to disperse by flying upstream. This aerial dispersal can be assisted by native riparian forest, but regional variation has not yet been empirically tested. In this study we compared the EPT community o...

Two poorly known species of Kamimuria Klapálek, 1907 originally known from southern China, K. melli Wu, 1935 and K. taoi Wu, 1936, are rediscovered and amended with supplementary descriptions of the aedeagi. Kamimuria atra Sivec & Stark, 2008 is recorded for the first time from China. Kamimuria liui (Wu, 1940) is newly recorded from southern China,...

There remains a persistent concern that freshwater biodiversity is in decline and being threatened by pollution. As the UK, and particularly England, is a densely populated nation with rivers of modest dilution capacity, this location is very suitable to examine how freshwater biodiversity has responded to human pressures over the past 30 years. A...

Freshwater lakes are subjected to increasing eutrophication and algal blooms worldwide, which have dramatically impacted the aquatic biodiversity. This situation is especially true in the Yangtze River Floodplain, China. However, few researches have been focused on differences in the spatial and temporal patterns of benthic macroinvertebrates assem...

Context Adult aquatic insects are major vectors of aquatic subsidies to terrestrial ecosystems, providing substantial ecosystem services to agriculture. Distance to water is reported as the prime factor to model their spatial distribution, but the role of local drivers, either terrestrial or aquatic habitat features, is not well established, notabl...

The aim of the study was to identify the current taxonomic composition and dominant structure of the macrozoobenthos in the Maritsa River and estuarine zones of its main tributaries (Chepelarska, Sazliyka, Stryama and Topolnitsa). The samples were collected from 15 sites in August and September 2020. The total number of the identified taxa was 165...

First record of Zwicknia westermanni Boumans & Murányi, 2014 (Plecoptera: Capniidae) in Saxony-Anhalt (Germany). The rare stonefly species Zwicknia westermanni Boumans & Murányi, 2014 has been recorded in Saxony-Anhalt for the first time. Several males were recorded at the Riederschen brook, a tributary of the river Selke, near Ballenstedt (Harz mo...

Plecoptera reflexa | 舒襀裳蛾 |

Plecoptera recta |

Resumen Los macroinvertebrados proporcionan señales acerca de las condiciones de una fuente de agua y son utilizados para el monitoreo ya que estos requieren que el agua se encuentre en buen estado para poder sobrevivir, y una ligera alteración de las condiciones de su hábitat provoca su ausencia cuando el agua está contaminada. La investigación se...

Aim: Additive diversity partitioning has been used to explain the accumulation of diversity at different spatial scales with relative success. In lotic ecosystems, the spatial extent is extremely relevant in studies of diversity accumulation, because it encompasses environmental variation that causes changes in the observed communities. Despite of...

Abundance and distribution of Macroinvertebrate of Lande Stream, Tumu,Gombe State were evaluated. Three sampling sites (A, B, and C) were selected. Macro invertebrates sampled fortnightly for three months (September using taxonomic keys. station. the five invertebrates taxa of Ple abundance of LandeStream arranged in descending trend as Mollusca> H...

We present a genome assembly from an individual female Protonemura montana (spring stonefly; Arthropoda; Insecta; Plecoptera; Nemouridae). The genome sequence is 258.5 megabases in span. Most of the assembly is scaffolded into 11 chromosomal pseudomolecules, including the X sex chromosome. The mitochondrial genome has also been assembled and is 15....

We present a genome assembly from an individual female Nemoura dubitans (a stonefly; Arthropoda; Insecta; Plecoptera; Nemouridae). The genome sequence is 321.0 megabases in span. Most of the assembly is scaffolded into 6 chromosomal pseudomolecules, including the X sex chromosome. The mitochondrial genome has also been assembled and is 15.73 kiloba...

The species of winter- and spring emerging plecopterans inhabiting the northern slopes of the Central Caucasus (territory of the Republic of North Ossetia-Alania, Russia) were examined. A total of 33 species were found at 59 sites. These findings expand the knowledge of ecology and phenology of six species for which we knew little. New localities w...

New records of Protonemura species are enumerated on the basis of specimens collected between 2015 and 2019 in the Greater and Lesser Caucasus. Three new species are proposed on the basis of males, females and nymphs: P. apetor sp. n. from Georgia, P. boris sp. n. from Azerbaijan and Georgia, and P. soad sp. n. from Armenia and Georgia. Comments ar...

Proceedings of the 2022 XVI International Conference On Ephemeroptera and XX International Symposium On Plecoptera (Table of Contents)

In order to determine the structure of benthic macroinvertebrates fauna in relation with some environmental factors, a study was carried out in the Esoa river at Nkongsamba in the Littoral region of Cameroon from January 2021 to January 2022. Physico-chemical parameters were measured according to APHA and Rodier recommendations, while benthic macro...

The evolution of Batesian mimicry - whereby harmless species avoid predation through their resemblance to harmful species - has long intrigued biologists. In rare cases, Batesian mimicry is linked to intraspecific colour variation, in which only some individuals within a population resemble a noxious 'model'. Here, we assess intraspecific colour va...

Today, the application of ecological indicators based on organisms has replaced traditional saprobic approaches for assessment of the quality of rivers impaired due to organic pollution and some other environmental disturbances. This study aimed to weigh the quality of the Ojarud River in Ardabil, Iran, applying biological and physiological indices...