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42 results for “ecological aspects”
Fig. 2a, b in Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil
Fig. 2a, b. Bar graphs indicating the relative percentages of different phytoplankton groups in the lake inflow (a) and outflow (b), sampled every month from November 2009 to November 2010.
Fig. 6 in Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil
Fig. 6. Principal Component Analysis (PCA) ordination of the sampling units (P1) = water inflow and (P2) = water outflow, and of the physical and chemical variables analyzed. The sampling units are listed by month abbreviated as follows: Jan = January; Feb = February; Mar = March; Apr = April; May = May; Jun = June; Jul = July; Aug = August; Sept = September; Oct = October; Nov = November; Dec = December. T = Temperature; Transp = Transparency; Cond = Conductivity; DO = Dissolved oxygen; NH4 = Ammonium; OM = Organic material.
Fig. 4a-c in Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil
Fig. 4a-c. Photomicrographs of Raphidiopsis raciborskii bloom from the studied lake demonstrating: a. general aspect of the bloom; c. part of a trichome with a heterocyte and an akinete; c. part of a trichome with only an akinete. Bars =10µm.
Fig. 1 in Morphological, ecological and toxicological aspects of Raphidiopsis raciborskii (Cyanobacteria) in a eutrophic urban subtropical lake in southern Brazil
Fig. 1. Map of the studied lake, showing the two sampling sites (I = water inflow and O = water outflow).
Figure 3 in Ecological aspects and molecular detection of Leishmania DNA (Kinetoplastida: Trypanosomatidae) in phlebotomine sand flies (Diptera: Psychodidae) from a rural settlement in the Eastern Amazon, Brazil
Figure 3 Abundance of Phlebotominae Sand flies from Perimetral Norte Rural Settlement, Pedra Branca Municipality, Amapá State, Brazil, collected from February 2018 to February 2019, at the collection sites: ID intradomicile, PD peridomicile, F100m forest 100m from edge, F400m forest from edge. The letters "a" and "b" represent the significant difference.
Figure 2 in Ecological aspects and molecular detection of Leishmania DNA (Kinetoplastida: Trypanosomatidae) in phlebotomine sand flies (Diptera: Psychodidae) from a rural settlement in the Eastern Amazon, Brazil
Figure 2 Shannon's Index of Phlebotominae Sand Flies from Perimetral Norte Rural Settlement, Pedra Branca Municipality, Amapá State, Brazil, collected from February 2018 to February 2019, at the collection- sites: ID intradomicile, PD peridomicile, F100m forest 100m from edge, F400m forest from edge. The letters "a" and "b" represent the significant difference.
Figure. Distribution of the recent localities of Lumbricus terrestris on the Balkan Peninsula (plus marks indicate other Balkan countries where L. terrestris also lives). in On the presence of Lumbricus terrestris Linnaeus 1758 (Oligochaeta, Lumbricidae) on the Balkan Peninsula: some aspects of ecology and distribution
Figure. Distribution of the recent localities of Lumbricus terrestris on the Balkan Peninsula (plus marks indicate other Balkan countries where L. terrestris also lives).
Fig 1 in Aspects of the ecology and behaviour of the Seychelles theraphosid Nesiergus insulanus (Arachnida: Araneae: Theraphosidae)
Fig 1. Map of Frégate Island, sampling sites indicated by white dots (adapted from Google Earth, DigitalGlobe map data 2015).
Fig 2 in Aspects of the ecology and behaviour of the Seychelles theraphosid Nesiergus insulanus (Arachnida: Araneae: Theraphosidae)
Fig 2. Female Nesiergus insulanus with egg sac in burrow and displaying defensive behaviour type: immobility-body cover.
Figure 2 in New records of Gigantolaelaps wolffsohni (Mesostigmata: Laelapidae) in Chile, an ectoparasite of Oligoryzomys longicaudatus (Rodentia: Cricetidae): ecological aspects and relation to body size and sex of their host
Figure 2 Larva of Gigantolaelaps wolffsohni from NP Chiloé, Chile. A. Full body of larvaeG. wolffsohni (10x). B. Zoom to gnathosoma of larvae G. wolffsohni (40x).
Figure 1 Localities where G in New records of Gigantolaelaps wolffsohni (Mesostigmata: Laelapidae) in Chile, an ectoparasite of Oligoryzomys longicaudatus (Rodentia: Cricetidae): ecological aspects and relation to body size and sex of their host
Figure 1 Localities where G. wolffsohni were found and ecoregions in Chile. 1. National Park (NP) Bosque Fray Jorge; 2. NP Las Chinchillas; 3. National Reserve (NR) Lago Peñuelas; 4. NP La Campana; 5. Sierras de Bellavista; 6. Termas del Flaco; 7. NR Altos de Lircay; 8. Parque Inglés; 9. Quilmo; 10. NP Nonguén; 11. Santa Elena; 12. NP Laguna del Laja; 13. NP Nahuelbuta; 14. Angol; 15. Bosque San Martín experimental station; 16. Gorbea; 17. Puyehue; 18. Hornopirén; 19. NP Chiloé; 20. NP Patagonia; 21. NP Tamango. All localities represent a new distributional record except the locality number 10 and 19. Yellow: Mediterranean ecoregion, green: Template Forest ecoregion, blue: Magellanic ecoregion.
Figure 6 in Biological and ecological aspects of Bathygobius soporator (Valenciennes, 1837) (Perciformes, Gobiidae) from Santa Catarina, Southern Brazil
Figure 6. Gonadosomatic index (GSI) of males and females of the species B. soporator for the periods 1996-1997 (A) and 2005-2006 (B).
Figure 5 in Biological and ecological aspects of Bathygobius soporator (Valenciennes, 1837) (Perciformes, Gobiidae) from Santa Catarina, Southern Brazil
Figure 5. First maturation size (L₅₀) for males and females of B. soporator collected between the 1997-1998 and 2005-2006 periods.
Figure 2 in Biological and ecological aspects of Bathygobius soporator (Valenciennes, 1837) (Perciformes, Gobiidae) from Santa Catarina, Southern Brazil
Figure 2. Number of individuals (n) of the Bathygobius soporator species in the size classes. * significant for X² test with 1 degree of freedom.
Figure 1 in Biological and ecological aspects of Bathygobius soporator (Valenciennes, 1837) (Perciformes, Gobiidae) from Santa Catarina, Southern Brazil
Figure 1. Location of the sampling area (hatch area) at the Itajaí-açu river (Saco da Fazenda), the coast of Santa Catarina, Brazil.
Figure 4 in Biological and ecological aspects of Bathygobius soporator (Valenciennes, 1837) (Perciformes, Gobiidae) from Santa Catarina, Southern Brazil
Figure 4. Length – Weight relatioships for males (A, C) and females (B, D) of B. soporator in the 1997-1998 (A, B) and 2005-2006 (C, D) periods.
Data from: Morphological, ecological and genetic aspects associated with endemism in the Fly Orchid group
The European genus Ophrys (Orchidaceae) is famous for its insect-like floral morphology, an adaptation for a pseudocopulatory pollination strategy involving Hymenoptera males. A large number of endemic Ophrys species have recently been described, especially within the Mediterranean Basin, which is one of the major species diversity hotspots. Subtle morphological variation and specific pollinator dependence are the two main perceptible criteria for describing numerous endemic taxa. However, the degree to which endemics differ genetically remains a challenging question. Additionally, knowledge regarding the factors underlying the emergence of such endemic entities is limited. To achieve new insights regarding speciation processes in Ophrys, we have investigated species boundaries in the Fly Orchid group (Ophrys insectifera sensu lato) by examining morphological, ecological and genetic evidence. Classically, authors have recognized one widespread taxon (O. insectifera) and two endemics (O. aymoninii from France and O. subinsectifera from Spain). Our research has identified clear morphological and ecological factors segregating among these taxa; however, genetic differences were more ambiguous. Insights from cpDNA sequencing and amplified fragment length polymorphisms genotyping indicated a recent diversification in the three extant Fly Orchid species, which may have been further obscured by active migration and admixture across the European continent. Our genetic results still indicate weak but noticeable phylogeographic clustering that partially correlates with the described species. Particularly, we report several isolated haplotypes and genetic clusters in central and southeastern Europe. With regard to the morphological, ecological and genetic aspects, we discuss the endemism status within the Fly Orchid group from evolutionary, taxonomical and conservation perspectives.
Figure 3 in Biological and ecological aspects of Bathygobius soporator (Valenciennes, 1837) (Perciformes, Gobiidae) from Santa Catarina, Southern Brazil
Figure 3. Growth curves for both time frame and both sexes of the Bathygobius soporator.
Data from: Ecology and life history affect different aspects of the population structure of 27 high-alpine plants
A plant species' genetic population structure is the result of a complex combination of its life history, ecological preferences, position in the ecosystem, and historical factors. As a result, many different statistical methods exist that measure different aspects of species' genetic structure. However, little is known about how these methods are interrelated and how they are related to a species' ecology and life history. In this study, we used the IntraBioDiv AFLP-dataset from 27 high-alpine species to calculate eight genetic summary statistics that we jointly correlate to a set of six ecological and life-history traits. We found that there is a large amount of redundancy among the calculated summary statistics and that there is a significant association with the matrix of species traits. In a multivariate analysis, two main aspects of population structure were visible among the 27 species. The first aspect is related to the species' dispersal capacities and the second is most likely related to the species' postglacial recolonisation of the Alps. Furthermore, we found that some summary statistics, most importantly Mantel's r and Jost's D, show different behaviour than expected based on theory. We therefore advise caution in drawing too strong conclusions from these statistics.
Data from: Detecting elusive aspects of wildlife ecology using drones: new insights on the mating dynamics and operational sex ratios of sea turtles
Offspring and breeding (operational) sex ratios (OSR) are a key component of demographic studies. While offspring sex ratios are often relatively easy to measure, measuring OSRs is often far more problematic. Yet highly skewed OSRs, and a lack of male-female encounters, may be an important extinction driver. Using loggerhead sea turtles (Caretta caretta) as a case study, we showed the utility of drones, i.e. unmanned aerial vehicles (UAVs) to distinguish adult males and females in a marine breeding area, using a combination of morphological characteristics (tail length) and behavioural differences (active mating, courting and searching by males versus resting by females). Through repeated surveys, we documented seasonal changes in the OSR. While the number, and ratio, of males and females on the breeding grounds changed massively, the ratio of receptive females (derived from the rate of influx of new individuals to the area) to breeding males remained close to 1:1 for much of the period before nesting commenced. Hence, we show how large imbalances in the number of adult males and females may translate into relatively balanced OSRs. Our results suggest that the departure of males from the breeding grounds is linked to a decline in female receptivity, with female sea turtles being known to store sperm to ensure high clutch fertility throughout the nesting season. In conclusion, while we detected up to three times more females than males at the breeding ground, at present, OSRs appear stable. However, because most males breed annually (versus biannually by females), there might only be ˜100 males in the adult population (i.e. adult sex ratio of 1:7.5), which might become further skewed under expected climate change scenarios; thus, we need to identify the minimum number of males required to prevent extinction. Finally, we highlight the use of UAVs for assessing the mating dynamics of other marine, terrestrial or avian species, in which adults might exhibit visually detectable differences, such as sexual dimorphism, external body characteristics or grouping tendencies.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.