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Dr. Miriam Lerma

@miriamlerma.bsky.social
552 followers 134 following 66 posts

Seabird researcher. Currently at Germany. www.miriam-lerma.com Available for hire on data and spatial analyses. www.linkedin.com/in/miriam-lerma #seabirds #rstats #qgis #movementecology

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Dr. Miriam Lerma @miriamlerma.bsky.social · 29/09/2026
This month's blog post, we’ll explore how to make a grid in QGIS. Grids can be used to summarise and analyse values within defined cells, for example, 5 × 5 km. The step-by-step in www.miriam-lerma.com/blog/2026-09...
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British Ornithologists’ Union (BOU) @bou.org.uk · 17/09/2026
EARLY VIEW in IBIS A global perspective on the annual cycles of whimbrels | onlinelibrary.wiley.... Camilo Carneiro et al | #ornithology 🪶
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Gary Allport @birdsandlife.bsky.social · 16/09/2026
Steppe Whimbrel - remember this? The tracking data now part of an amazing collaborative study of all tracks of whimbrels globally, put together by Camilo Carniero just published in Ibis. Still a big data gap in Southern and Eastern Africa onlinelibrary.wiley.com/doi/10.1111/...
Migratory routes of tracked whimbrels with the breeding (triangles pointing downwards), wintering (triangles pointing upwards) and stopover sites (spring: circles; autumn: diamonds). Stopover symbol sizes represent duration in days. Each subspecies is represented by a distinct colour, with undetermined by grey symbols and dashed tracks. The coloured polygons at high northern latitudes illustrate the longitudinal ranges considered to assign subspecies with exception of N. p. alboaxillaris (see Table 2; note that presumed overlapping subspecies N. p. phaeopus– rogachevae and N. p. rogachevae– variegatus are not labelled). Repeated individual tracks are shown but not included in statistical analysis. The map is presented in an equal area projection, which retains the relative size of areas.
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Dr. Miriam Lerma @miriamlerma.bsky.social · 24/08/2026
This month's blog post showcases shipping traffic at the Baltic Sea. The step-by-step guide to replicate the map in #QGIS is here: www.miriam-lerma.com/blog/2026-08...
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Dr. Miriam Lerma @miriamlerma.bsky.social · 02/07/2026
This month's blog post focuses on mapping the Baltic Sea’s maritime borders and country boundaries in #QGIS. The step-by-step here: www.miriam-lerma.com/blog
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W. P. Mueller @wpmueller.bsky.social · 09/06/2026
#ornithology #seabirds www.tandfonline.com/doi/full/10....
tandfonline.com
Dispersive migration of breeding Juan Fernández Petrels Pterodroma externa across the eastern Pacific Ocean and overlap with tropical tuna fisheries
Tropical seabirds often forage facultatively in association with tuna and may be affected by industrial fisheries both directly through bycatch, and indirectly through reduced prey availability fol...
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Dr. Miriam Lerma @miriamlerma.bsky.social · 09/06/2026
In this month's blog post, I’ll share how to select specific features from a layer and how to add an inset map in #QGIS. All this, using the Baltic Sea and Natural Protected Areas at Sea as an example.
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Dr. Miriam Lerma @miriamlerma.bsky.social · 08/06/2026
Orcas in Doggerbank 🤩
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Dr. Miriam Lerma @miriamlerma.bsky.social · 27/05/2026
In this month’s post, I’ll share how to add offshore wind farms in the Baltic Sea, including their names, to a map using #QGIS. The tutorial covers adding a vector layer and labeling each polygon. See step-by-step here: www.miriam-lerma.com/blog/2026-05...
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AniMove @animove-course.bsky.social · 01/04/2026
🌿Apply now! 🌿🦒🐘🦓🌍 We’re thrilled to announce that applications for Animove are NOW OPEN This year our workshop will take place in Africa @mpalarc.bsky.social . Learn cutting-edge methods in animal movement analysis. We can't wait to see your application come through. See you at #Mpala 🇰🇪
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GEOMAR Helmholtz Centre for Ocean Research Kiel @geomarkiel.bsky.social · 09/04/2026
🌊 Doktorand:in (m/f/d) “Blasentang Wiederansiedlung” 🌊 Doctoral researcher (m/f/d) in Fish Movement Ecology 🔗 www.geomar.de/karriere-cam...
Blick auf das wütende Meer durch das Bullauge eines Schiffs. Im Vordergrund zwei blaue Kästen mit Stellenausschreibungen und dem Hashtag #GEOMARJobs.
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Dr. Miriam Lerma @miriamlerma.bsky.social · 09/04/2026
In this blog post, we’ll be adding a #raster layer of #bathymetry data in #QGIS. Step by step here: www.miriam-lerma.com/blog/2026-04...
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Samantha Patrick @samanthacpatrick.bsky.social · 05/04/2026
Join me & @olliepadget.bsky.social at @livuninews.bsky.social! #postdoc #seabird movement & navigation in response to environmental cues @ukri.org. Developing new loggers w/ micro-engineers & computer scientists @yorkuniversity.bsky.social. Job tinyurl.com/2zuzktv5 Press release tinyurl.com/2zuzktv5
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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 23/03/2026
Thousands of seabirds dying on western Europe’s coasts Puffins, guillemots and razorbills are being washed up dead or dying on Europe’s Atlantic coast in what scientists call a ‘wreck’ www.theguardian.com/news/2026/ma... 🦑 🧪 🌍️
theguardian.com
Thousands of seabirds dying on western Europe’s coasts
Puffins, guillemots and razorbills are being washed up dead or dying on Europe’s Atlantic coast in what scientists call a ‘wreck’
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Matt Wood @woodmj.bsky.social · 13/03/2026
📢 #Postdoc in #seabird #demography Capture-recapture, IPMs and PVA. Analyses underway - great stage to join the project. Hybrid/remote possible. Apply: bit.ly/3P3yAM1 Please share widely, informal email enquiries welcome @theseabirdgroup.bsky.social @worldseabirdunion.bsky.social
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Dr. Miriam Lerma @miriamlerma.bsky.social · 12/03/2026
In this months' blog post, we’ll explore how to add vector layers and legend in a map with QGIS. step by step here: www.miriam-lerma.com/blog/2026-03...
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Journal of Animal Ecology @animalecology.bsky.social · 09/03/2026
🚨 new research! 🪽 "environmentally induced stress affects fitness of bold and shy alike: A long-term study of personality and feather corticosterone in Arctic-breeding kittiwakes" 🔍️ read it here: buff.ly/Zj9b7z0
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Graham Appleton @wadertales.bsky.social · 17/02/2026
Scavenging Turnstone? It can be a sign of desperation. wadertales.wordpress.com/2016/02/17/w... 🎂🔟 p.s. Also recorded eating human corpse! #ornithology
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Dr. Miriam Lerma @miriamlerma.bsky.social · 19/02/2026
In this month's blog post, we’ll explore how to add annotations such as coordinates, north arrow, scale bar and text into a map using QGIS. #QGIS #step-by-step
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Dr. Miriam Lerma @miriamlerma.bsky.social · 30/01/2026
Have you heard about the Yellow-footed Gull (Larus livens)? 🟡 One of the world’s rarest gulls, found only in the Gulf of California. With an estimated population of ~20,000 individuals, they breed in small, scattered colonies. 📡 We’ve just uncovered the first insights into their movement ecology!
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German Ornithological Society @dornitholges.bsky.social · 30/01/2026
Now online in Journal of #Ornithology Open access First report on habitat use and trip parameters of Yellow-footed Gulls Larus livens during the breeding and post-breeding period link.springer.com/article/10.1...
link.springer.com
First report on habitat use and trip parameters of Yellow-footed Gulls Larus livens during the breeding and post-breeding period - Journal of Ornithology
Biologging has allowed collecting unprecedented detailed information about the biology and behavior of many species. GPS tracking technology has significantly advanced our understanding of gull ecolog...
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Dr. Miriam Lerma @miriamlerma.bsky.social · 27/01/2026
In 2026, I’ll be creating content to help people get started with QGIS. I’ll be demonstrating everything while upgrading my own system from QGIS 3.28 to 3.44 In this month’s post, I’ll walk through an example of how to create your first QGIS project. #QGIS #BalticSea
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UK Seabird Monitoring Programme @smp-seabirds.bsky.social · 26/01/2026
East or west? Tracking work from 2017-2020 by BTO staff provided the first evidence of Scottish breeding Arctic Skuas wintering off South America! Other individuals wintered along the western and southern African coast. #seabirds @btobirds.bsky.social @jncc.bsky.social @rspb.bsky.social
Graphic displays an image of an Arctic Skua by Edmund Fellowes/BTO and a map showing rough migration routes to their south American and west to south African coast wintering grounds.
Caption reads: 'East or west? Tracking work from 2017-2020 by BTO staff provided the first evidence of Scottish breeding Arctic Skuas wintering off South America! Other individuals wintered along the western and southern African coast. #seabirds @btobirds.bsky.social @jncc.bsky.social @rspb.bsky.social'
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Dr. Miriam Lerma @miriamlerma.bsky.social · 21/01/2026
Estudiando gaviotas cocineras urbanas (Coquimbo) y silvestres (Damas), encontramos que las gaviotas urbanas muestran comportamiento sinantrópico y baja movilidad todo el año, mientras que las silvestres ajustaron sus movimientos. 10.1002/ece3.72974 #ornithology #seabirds #gulls #FaunaUrbana #Chile
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World Seabird Union @worldseabirdunion.bsky.social · 15/01/2026
📣 Pacific Seabird Group plenary speakers announced! Don’t miss the opportunity to hear from three internationally recognised leaders in seabird ecology and conservation. ⏰ Registration closes 23 January 2026 👉 Register now: psg.wildapricot.org/event-626370...
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Dr. Miriam Lerma @miriamlerma.bsky.social · 04/12/2025
Last post of 2025! 🎉 In this month’s blog, we're diving into contour lines. Using bathymetric data as an example, I’ll show how to create contour lines with R packages like terra and sf, and how to use shadowtext to label the depths for better visualization. #DataVisualization #Rmaps
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Dr. Miriam Lerma @miriamlerma.bsky.social · 09/11/2025
In this month's blog post, we’ll explore maritime protected areas (MPAs), walking through the process of downloading the data and visualizing it. #Rstats #GeospatialAnalysis #DataVisualization #Rmaps
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Dr. Miriam Lerma @miriamlerma.bsky.social · 12/10/2025
In this blog post, we’ll explore maritime borders, including territorial waters and Exclusive Economic Zones (EEZ), by walking through the process of downloading the data and visualizing it. #Rstats #GeospatialAnalysis #DataVisualization #Rmaps
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British Ornithologists’ Union (BOU) @bou.org.uk · 02/09/2025
What to eat when far from home? A vagrant seabird selects novel but analogous prey | www.marineorn... | Marine Ornithology | #ornithology #seabirds 🪶
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Dr. Miriam Lerma @miriamlerma.bsky.social · 01/09/2025
This month’s blog dives into underwater cables in the German North Sea. Using EMODnet data and R, I mapped telecom & power cables, exploring, cleaning, and visualizing the data to reveal these hidden seafloor infrastructures. #Rstats #GeospatialAnalysis #DataVisualization #cables #Rmaps
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Lancaster University @lancasteruni.bsky.social · 06/08/2025
Using lightweight bird-borne cameras, scientists have captured unique footage of Indian Ocean seabirds speeding just above the waves to catch flying fish. Dr Ruth Dunn (@ruthedunn.bsky.social) of @lec-reefs.bsky.social is lead author of the study. 📰: tinyurl.com/yezeyxu2
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Dr. Miriam Lerma @miriamlerma.bsky.social · 04/08/2025
In this post, we'll explore oil and gas infrastructure in the German North Sea. Using EMODnet geospatial data to map offshore installations and pipelines, as well as focusing on a site near the ecologically sensitive Borkum Reef, revealing why recent projects there have sparked environmental concern
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British Ornithologists’ Union (BOU) @bou.org.uk · 16/07/2025
Decision relating to the #BritishList Great-tailed Grackle Quiscalus mexicanus has been added to Category E bou.org.uk/british-l... The British List stands at 640 species #ornithology
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Journal of Avian Biology @avianbiology.bsky.social · 13/07/2025
NEW PAPER: Same-sex partnerships in birds: a review of the current literature and a call for more data. ➡️ vist.ly/3n99bk6 #ornithology #birds #same-sexbehaviour #review #partnerships @tashgillies.bsky.social @katrina-siddiqi.bsky.social Illustration: @bertillemohring.bsky.social
Fig. 1 from the article.  Overview of the selective and non-selective forces influencing the expression of same-sex partnerships in birds, adapted from the framework for understanding same-sex sexual behaviour in Clive et al. (2020). Illustration: Bertille Mohring
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Dr. Miriam Lerma @miriamlerma.bsky.social · 01/07/2025
Curious about mapping offshore wind farms with R? This month, we explore EMODnet data from the German North Sea, create maps with ggplot2, and track wind farm growth before 2016. Perfect if you're into data, maps, or the ocean. #Rstats #GeospatialAnalysis #DataVisualization #OWF
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World Seabird Union @worldseabirdunion.bsky.social · 19/06/2025
🪶 Seabird scientists & managers! 🌊 Propose a symposium or workshop for #WSC4: "Wings of Adaptation: Seabirds in a Changing Climate." Submit a 1-page summary by 01 August 2025. 🔗 Details on our website bit.ly/4e6wQdc #Seabirds #ClimateChange #Ornithology #WSC2025
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Scripps Institution of Oceanography @scrippsocean.bsky.social · 18/06/2025
🐦 Why are five booby species showing up in the California Current Ecosystem? Using data from CalCOFI, eBird and more, Scripps Oceanography alumna and postdoc Tammy Russell uncovered the major shift. 🌊 Read the study published by Frontiers In Marine Science: bit.ly/4mOBroh
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Dr. Miriam Lerma @miriamlerma.bsky.social · 06/06/2025
Yellow-billed loon (**Gavia adamsii**) in our ship surveys!! 🤩 #ornithology #shipsurveys #sas
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Dr. Miriam Lerma @miriamlerma.bsky.social · 06/06/2025
In this month's blog post, I demonstrate how to visualize shipping traffic data using R. The tutorial covers downloading the dataset from EMODnet, performing exploratory data analysis, and creating a map using ggplot2. #Rstats #GeospatialAnalysis #DataVisualization #ShippingTraffic
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Eneko Arrondo @bioeaf.bsky.social · 11/05/2025
La pesca de arrastre es de las mayores salvajadas que hemos inventao
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David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 07/05/2025
‘It’s like putting a whale in a blender’: the rise of deadly ship collisions in Chile
theguardian.com
‘It’s like putting a whale in a blender’: the rise of deadly ship collisions in Chile
On average, five fatal whale strikes occur in the country’s waters each year, the highest in the world – and just a fraction of the total number killed, say researchers
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Dr. Miriam Lerma @miriamlerma.bsky.social · 05/05/2025
In this month's post, I’ll show you how to create a map using radiance data, often associated with light pollution, collected by the Visible Infrared Imaging Radiometer Suite (VIIRS). www.miriam-lerma.com/posts/2025-0... #DataVisualization #Rstats #LightPollution #ggplot #DataScience
miriam-lerma.com
Miriam Lerma: Light pollution
Create a map using radiance information from VIIRS.
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German Ornithological Society @dornitholges.bsky.social · 05/05/2025
Now online in Journal of #Ornithology The role of nest-site interference competition with Cape Verde Shearwater in explaining breeding success of Red-billed Tropicbird on Raso Islet, Cape Verde archipelago Short Communication link.springer.com/article/10.1...
link.springer.com
The role of nest-site interference competition with Cape Verde Shearwater in explaining breeding success of Red-billed Tropicbird on Raso Islet, Cape Verde archipelago - Journal of Ornithology
We present the breeding phenology and success of Red-billed Tropicbird (Phaethon aethereus) on Raso Islet, Cape Verde archipelago, in relation to the breeding of Cape Verde Shearwaters (Calonectris ed...
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Dr. Miriam Lerma @miriamlerma.bsky.social · 09/04/2025
In this blog post, I walk you through the process of visualizing sea surface temperature in R. From downloading the dataset to reading it and creating a map using ggplot. Check it out and share your thoughts! #DataVisualization #Rstats #SeaSurfaceTemperature #ggplot #DataScience
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Dr. Miriam Lerma @miriamlerma.bsky.social · 01/04/2025
New post 🎉 In this post, I share considerations on journal scope and open access fees. This guide is aimed at those submitting their first paper to ornithological journals (includes links). #ornithology #research www.miriam-lerma.com/posts/2025-0...
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Ben Sheldon @sheldonbirds.bsky.social · 30/03/2025
Lovely film about Tim Birkhead's long-term study of Guillemots on Skomer. More than half a century of study of this population: this kind of continuity critical for understanding vitality of these important populations. besjournals.onlinelibrary.wiley.com/doi/full/10.... vimeo.com/1063680641/2...
vimeo.com
The Birdman of Skomer
With English captions.
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Nicholas @petrel-nut.bsky.social · 15/03/2025
The White-bellied Storm-petrel trip also gave up one of two deployed GLS loggers. 1st ever track. Aust. to Chile (10K km) and down towards the Antarctica coast. Unprecedented?! So hard to access remote colonies with over 80 island-days available (2009-2025) but only 8 landings possible.#Seabirds 🪶
Small storm-petrel in-hand at night. Exposed legs showing colour tape around metal band on one leg and Global Light Sensing logger attached to a band on the other legImage of South Pacific with Australian land mass on far left and a series of red dots indicating the movements of a tracked seabird
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Marine Ornithology @marineorno.bsky.social · 12/03/2025
🚨 Cruising for data: Defining the seabird community from vessels of opportunity in Canada’s Eastern Arctic by Carina Gjerdrum et al. #seabirds #AtSeaSurvey #OpenAccess www.marineornithology.org/PDF/53_1/53_...
Average seabird density assessed by research vessels.
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Marine Ornithology @marineorno.bsky.social · 11/03/2025
The owl gull: exclusively nocturnal foraging by the Swallow-tailed Gull Creagrus furcatus in Galápagos. by Sebastian M. Cruz et al. #seabirds #OpenAccess www.marineornithology.org/PDF/53_1/53_...
Adult Swallow-tailed Gull Creagrus furcatus, highlighting
the distinctive eye of this species.
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Dr. Miriam Lerma @miriamlerma.bsky.social · 03/03/2025
In this blog post, I walk you through the process of visualizing Global Fishing Watch data in R, covering from downloading the dataset to reading it and creating a map using ggplot. www.miriam-lerma.com/posts/2025-0... #Rstats #GeospatialAnalysis
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