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435 results for “aquatic beetles”
Linked collectors and determiners for: New Neotropical and Nearctic species of water beetles in the genera Hydraena Kugelann and Ochthebius Leach, a key to North American genera and subgenera of the family, new distribution records, and a synopsis of ecology, behavior and morphology related to aquatic life (Coleoptera: Hydraenidae).
Natural history specimen data linked to collectors and determiners held within, "New Neotropical and Nearctic species of water beetles in the genera Hydraena Kugelann and Ochthebius Leach, a key to North American genera and subgenera of the family, new distribution records, and a synopsis of ecology, behavior and morphology related to aquatic life (Coleoptera: Hydraenidae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/35ec0e5e-a604-44cc-a20f-67222171030d">https://bionomia.net/dataset/35ec0e5e-a604-44cc-a20f-67222171030d</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/35ec0e5e-a604-44cc-a20f-67222171030d">https://gbif.org/dataset/35ec0e5e-a604-44cc-a20f-67222171030d</a>. Formatted as a Frictionless Data package.
Documentation of Aquatic Beetles in Newtown Ecopark, North 24 Parganas, West Bengal, India (2023-2024)
<p>The publication titled "Documentation of Aquatic Beetles in Newtown Ecopark, North 24 Parganas, West Bengal, India (2023-2024)" has been published by the Nature Mates Nature Club. This publication is a component of the WBHIDCO Pakhibitan Project, centered on the Ecopark located in Newtown, North 24 Parganas, West Bengal, India.</p> <p><strong> </strong></p> <p>The study area encompasses a total land area of 480 acres(including a 104 acres waterbody with an island in the middle), comprising a varied array of microhabitats. These microhabitats consist of grassland, a mixed forest containing tree species such as Arjuna, Rain tree, Sal, Mahua, Simul, and Babul within the designated "rainforest" region. Additionally, the study area includes fruit trees, flowering trees, vegetable plants, bushes, and shrubs. Furthermore, there is a designated garden area known as the "Butterfly Garden," which primarily consists of shrubs and herbs.</p> <p>In addition to this, there exists a grassland region within the "formal garden" and "Golfarena." Located on a periphery of the park, there exists a diminutive expanse of wetland referred to as Pakhibitan, characterized by the presence of cattails, colloquially known as 'hogla' among the indigenous populace. Located opposite the park lies a substantial body of freshwater, encompassing an approximate surface area of 104 acres. In addition to the natural water bodies, the park also features several artificial water bodies that have been created by human intervention. Kolkata experiences four distinct seasons, namely summer, monsoon, winter, and autumn. The annual temperature exhibits a range of 43°C to 9°C. The annual average precipitation is 1400mm. The soil type in this area is classified as alluvial due to its geographical location within the Indo-Gangetic plain.</p> <p><strong> </strong></p> <p>Various parameters were recorded during the survey, these are pH, TDS, EC, salinity and DO. pH recorded was from 7 to 11. TDS was 283 ± 10 ppm. With EC 566 ± 20 μs/cm, DO was 6.12 ± 1.28 mg/l. Salinity was 0% and remained same throughout the study period</p> <p><strong> </strong></p> <p>The dataset presented here comprises a record of aquatic beetles documented during a biodiversity survey conducted over the period spanning from april 2023 to march2024. </p> <p><strong> </strong></p> <p>All species have been identified at either the species or genus level. A comprehensive tally of 13 species was documented belonging to 3 separate families under order coleoptera </p> <p> </p> <p>Resource Contacts</p> <p>Name: Biplob Kr. Modak</p> <p>Position: Professor</p> <p>Organization: Sidho-Kanho-Birsha University</p> <p>Address: University Campus Road, Ranchi - Purulia Rd, Purulia, West Bengal 723104</p> <p><strong> </strong></p> <p>Name: Abhik Rong</p> <p>Position: Intern</p> <p>Organization: Nature Mates-Nature Club</p> <p>Address: 6/7 Bijoygarh Kolkata-700032</p> <p>Email: <a href="mailto:amritorong@gmail.com">amritorong@gmail.com</a></p> <p>Orcid : https://orcid.org/0009-0000-1414-0408</p> <p>Home page:<a href="http://www.naturematesindia.org/"> http://www.naturematesindia.org/</a></p> <p><strong> </strong></p> <p>Name: Nivedita Sengupta</p> <p>Position: Intern</p> <p>Organization: Nature Mates-Nature Club</p> <p>Address: 6/7 Bijoygarh Kolkata-700032</p> <p>Email: niveditasngpta.ns@gmail.com</p> <p>Orcid :<a href="https://orcid.org/0000-0003-1085-7385"> https://orcid.org/0000-0003-1085-7385</a></p> <p>Home page:<a href="http://www.naturematesindia.org/"> http://www.naturematesindia.org/</a></p> <p><strong> </strong></p> <p>Name: Lina Chatterjee</p> <p>Position: Research Associate</p> <p>Organization: Nature Mates-Nature Club</p> <p>Address: 6/7 Bijoygarh Kolkata-700032</p> <p>Email: lina.linachatterjee@gmail.com</p> <p>Orcid :<a href="https://orcid.org/0000-0002-5626-5046"> https://orcid.org/0000-0002-5626-5046</a></p> <p>Home page:<a href="http://www.naturematesindia.org/"> http://www.naturematesindia.org/</a></p> <p><strong><br><br></strong></p> <p>Name: Arjan Basu Roy</p> <p>Position: Secretary</p> <p>Organization: Nature Mates-Nature Club</p> <p>Address: 6/7 Bijoygarh Kolkata-700032</p> <p>Email: basuroyarjan@gmail.com</p> <p>Orcid :<a href="https://orcid.org/0000-0001-9872-3562"> https://orcid.org/0000-0001-9872-3562</a></p> <p>Home page:<a href="http://www.naturematesindia.org/"> http://www.naturematesindia.org/</a></p> <p><strong> </strong></p> <p>Name: Vijay Barve</p> <p>Position: Research Advisor</p> <p>Organization: Nature Mates-Nature Club</p> <p>;Address: 6/7 Bijoygarh Kolkata-700032</p> <p>Email: vijay.barve@gmail.com</p> <p>Orcid :<a href="https://orcid.org/0000-0002-4852-2567"> https://orcid.org/0000-0002-4852-2567</a></p> <p>Home page:<a href="http://www.naturematesindia.org/"> http://www.naturematesindia.org/</a></p> <p> </p>
Aquatic beetles influence colonization of disparate taxa in small lentic systems
<p>Structure of natural communities is shaped by both abiotic characteristics and by the ongoing processes of community assembly. Important to this process are the habitat selection behaviors and subsequent survival of colonists, both in the context of temporal changes in the abiotic characteristics and priority effects driven by earlier colonists. Aquatic beetles are prevalent in temporary freshwater systems, form speciose assemblages, and are often early colonists of temporary ponds. While beetles have the potential to influence community structure through post-colonization interactions (predation and competition), our goal was to determine whether the presence of beetle assemblages (versus patches without beetles) influence the colonization and oviposition of a diverse group of animals in a naturally-colonized experimental landscape. We established mesocosms that either contained existing beetle assemblages or contained no beetles and assessed abundances of subsequent colonists. Treefrogs, <em>Hyla chrysoscelis</em>, and mosquitoes, <em>Culex restuans</em>, both deposited fewer eggs in patches containing beetle assemblages, while two beetles, <em>Copelatus glyphicus</em> and <em>Paracymus</em>, colonized those patches at lower rates. One beetle, <em>Helophorus linearis</em>, colonized patches containing beetle assemblages at higher rates, while two beetles, <em>Berosus infuscatus</em> and <em>Tropisternus lateralis</em>, exhibited no colonization differences between treatments. Overall, there were no differences in the assemblage structure or richness of beetles that colonized patches. Our results illustrate the importance of species-specific habitat selection behavior in determining the species composition of habitat patches, while emphasizing the role of priority effects in influencing patterns of community assembly. Habitat selection in response to abiotic and biotic characteristics of habitat patches can potentially create greater spatiotemporal niche separation among the numerous, often closely-related species (phylogenetically and trophically), that can be simultaneously found in similar patches across landscapes.</p>
Aquatic beetles influence colonization of disparate taxa in small lentic systems
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Fig. 17 in A new aquatic beetle family, Meruidae, from Venezuela (Coleoptera: Adephaga)
Fig. 17. Biotope at El Tobogán, the type locality of Meru phyllisae. A, The upper cascade looking upstream from the dam; B, the upper cascade looking downstream from the upper edge. C, The edge of the upper cascade showing the wet rock face and stream edge; D, the stream edge at the upper cascade where the root mat habitat was sampled; E, Biotope at El Tobogán, the type locality of Meru phyllisae. A, The dam and pool below the upper cascade looking upstream; F, the pool and forested stream below the cascade looking downstream; G, Section of forested stream below the cascade, looking downstream; H, the open rock surface and edge of a rapid section of the cascade.
Fig. 14. Meru phyllisae, male genitalia. A in A new aquatic beetle family, Meruidae, from Venezuela (Coleoptera: Adephaga)
Fig. 14. Meru phyllisae, male genitalia. A, Median lobe, dorsal (left) and lateral (right) views, with parameres (centre), right (upper) and left (lower); B, ring sclerite (ninth sternite).
Fig. 10 in A new aquatic beetle family, Meruidae, from Venezuela (Coleoptera: Adephaga)
Fig. 10. Meru phyllisae, metendosternite, scanning electron micrographs. A, Oblique dorsolateral view; B, dorsolateral view.
Fig. 6. Meru phyllisae. A in A new aquatic beetle family, Meruidae, from Venezuela (Coleoptera: Adephaga)
Fig. 6. Meru phyllisae. A, Front and mid legs, left, anterior view; B, front and mid legs, right, posterior view; C, D, mesotibia, right, apex; E, hind tarsus, left, ventral view; F, hind tarsus, left, posterior view; G, claws, right mesotarsal, lateral view; H, claws, left metatarsal, oblique view; I, claws, right metatarsal, ventral view.
Fig. 5. Meru phyllisae. A in A new aquatic beetle family, Meruidae, from Venezuela (Coleoptera: Adephaga)
Fig. 5. Meru phyllisae. A, Left elytron, lateral view; B, left elytron, detail of margin; C, left elytron, inner surface; D, left elytron, wing-folding patch on inner surface; E, abdominal sternites, detail of posterior margins of 1–3; F, abdominal sternite 3, detail of posterior margin.
Fig. 3. Meru phyllisae. A in A new aquatic beetle family, Meruidae, from Venezuela (Coleoptera: Adephaga)
Fig. 3. Meru phyllisae. A, Head, lateral view; B, head, anterior view; C, mouthparts, ventral view; D, labial palpal bases; E, head, anterior view, detail of mouth; F, right maxillary and labial palpi, ventral view; G, right maxillary palpus, apex; H, left maxillary palpus, apex; I, right labial palpus, apex.
Fig. 4. Meru phyllisae, antennae. A in A new aquatic beetle family, Meruidae, from Venezuela (Coleoptera: Adephaga)
Fig. 4. Meru phyllisae, antennae. A, Left, dorsal view; B, right, segments 1–7, ventral view; C, right, segments 7–11, ventral view, showing sensorial patches on segments 7, 9 and 11; D, right, segments 6–8, ventral view, showing sensorial patch on segment 7; E, left, lateral view, apical (eleventh) segment with sensorial patches; F, right, ventral view, apical (eleventh) segment with sensorial patches.
Fig. 2. Meru phyllisae. Scanning electron micrographs. A in A new aquatic beetle family, Meruidae, from Venezuela (Coleoptera: Adephaga)
Fig. 2. Meru phyllisae. Scanning electron micrographs. A, Habitus, dorsal view; B, habitus, ventral view; C, thoracic sterna; D, head, pronotum and bases of elytra; E, head and prosternal area; F, metasternum and abdomen; G, right elytron; H, pronotal and elytral bases; I, pronotum, lateral view.
Fig. 2 in Altitudinal Distribution of Aquatic Beetles (Coleoptera) in Northern Tunisia: Relationship between Species Richness and Altitude
Fig. 2. Relationship between number of sampling sites and species richness at three altitudinal levels. 1 = 1–249 m;
FIGURES 39–42 in New Neotropical and Nearctic species of water beetles in the genera Hydraena Kugelann and Ochthebius Leach, a key to North American genera and subgenera of the family, new distribution records, and a synopsis of ecology, behavior and morphology related to aquatic life (Coleoptera: Hydraenidae)
FIGURES 39–42. Behavior and morphology of exocrine secretion delivery systems of Hydraena and Ochthebius. 39–40) Hydraena americana Jäch. 39) Schematic. a) Beetle balanced on edge, tibiae of the right legs resting on the surface of a wet leaf, the left legs performing secretion-grooming. b) Secretion-grooming movements of left tibiae (note pivotal role of middle leg). c) Locations of exocrine gland pore areas. 40) Venter of left side of prothorax, external and internal, showing components of exocrine secretion delivery system. 41) Ochthebius arenicolus Perkins, ventral aspect of head and prothorax. 42) Ochthebius glaber Montes & Soler, ventral aspect of left side of head and adjacent area of prothorax, showing external cuticular features of antennal pocket and internal end-apparatus and ductules. For more context and SEMs see Perkins (1997).
FIGURES 34–35. Habitus and male genitalia.34 in New Neotropical and Nearctic species of water beetles in the genera Hydraena Kugelann and Ochthebius Leach, a key to North American genera and subgenera of the family, new distribution records, and a synopsis of ecology, behavior and morphology related to aquatic life (Coleoptera: Hydraenidae)
FIGURES 34–35. Habitus and male genitalia.34. Ochthebius (Gymnochthebius) falli (Perkins).35. Ochthebius (Gymnochthebius) fossatus LeConte.
FIGURE 33 in New Neotropical and Nearctic species of water beetles in the genera Hydraena Kugelann and Ochthebius Leach, a key to North American genera and subgenera of the family, new distribution records, and a synopsis of ecology, behavior and morphology related to aquatic life (Coleoptera: Hydraenidae)
FIGURE 33. Ochthebius (Asiobates) cascadeus, new species, holotype habitus and aedeagus (inset: aedeagal apex of Ochthebius (Asiobates) mimicus Brown).
FIGURES 43–44 in New Neotropical and Nearctic species of water beetles in the genera Hydraena Kugelann and Ochthebius Leach, a key to North American genera and subgenera of the family, new distribution records, and a synopsis of ecology, behavior and morphology related to aquatic life (Coleoptera: Hydraenidae)
FIGURES 43–44. Behavior and morphology of exocrine secretion delivery system of Limnebius. 43) Limnebius piceus Horn, schematic, beetle balanced on edge, tibiae of the left legs resting on the surface of a wet leaf, the right legs performing secretiongrooming, anterior (left) and posterior aspects; dorsal areas groomed by legs: a) protibia and protarsus, b) protibia, c) mesotibia, d) metatibia and metatarsus. 44) Limnebius truncatellus (Thunberg). Head and adjacent area of prothorax, ventral aspect of left side showing external cuticular features and internal end-apparatus and ductules of exocrine glands. For more context and SEMs see Perkins (1997).
FIGURE 2 in Checklist of Moroccan aquatic beetles (Coleoptera: Hydraenidae Mulsant, 1844) New records and updates
FIGURE 2. Chorological analysis: (A) general chorological categories of the studied taxa; (B) chorological subcategories of the Mediterranean chorotype; (C) endemics in the broadest sense.
FIG. 3 in Rhithrops capensis gen. et sp. nov., a new aquatic dryopid beetle from the Western Cape of South Africa (Coleoptera: Dryopoidea: Dryopidae)
FIG. 3. Rhithrops capensis gen. et sp. nov. A) head, posterolateral view; B) compound eye – arrow indicates inter-ommatidial seta; C) detail of dorsolateral sculpture of head, inside compound eye; D) antennae; E) antennomeres 1–2; F) antennomeres 3–10.
FIG. 6 in Rhithrops capensis gen. et sp. nov., a new aquatic dryopid beetle from the Western Cape of South Africa (Coleoptera: Dryopoidea: Dryopidae)
FIG. 6. Rhithrops capensis gen. et sp. nov. A) prothorax, dorsal view; B) close-up of sculpture of pronotal disc; C) Meso and metanotum, with scutellum; D) right elytron, dorsolateral view; E) detail of right elytral apex; F) prothorax, ventral view.
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