Dr. Miriam Lerma's Avatar

Dr. Miriam Lerma

@miriamlerma

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

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15.10.2024
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Latest posts by Dr. Miriam Lerma @miriamlerma

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Scavenging Turnstone?
It can be a sign of desperation.
wadertales.wordpress.com/2016/02/17/w... πŸŽ‚πŸ”Ÿ
p.s. Also recorded eating human corpse!
#ornithology

17.02.2026 06:56 πŸ‘ 15 πŸ” 7 πŸ’¬ 2 πŸ“Œ 0
Add annotations and export in QGIS In this blog post, we’ll explore how to add annotations such as coordinates, north arrow, scale bar and text into a map.

Here is the link: www.miriam-lerma.com/blog/2026-02...

19.02.2026 14:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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

19.02.2026 14:17 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

πŸ” Continued monitoring is crucial for conservation, especially with proposed industrial projects in the Gulf (Proyecto Sahuaro) that could impact key habitats, with still-unknown ecological consequences.

#Conservation #Seabirds #GulfOfCalifornia #MovementEcology #ProyectoSahuaro #Ballenasogas

30.01.2026 13:16 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Unlike many gull species, Yellow-footed Gulls rarely visit cities or landfills, staying mostly in coastal habitats. We also documented the first large-scale movements of the species, showing they cross the Gulf of California.

30.01.2026 13:16 πŸ‘ 4 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0

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.

πŸ“‘ We’ve just uncovered the first insights into their movement ecology!

30.01.2026 13:12 πŸ‘ 6 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
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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...

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...

30.01.2026 06:57 πŸ‘ 8 πŸ” 4 πŸ’¬ 0 πŸ“Œ 1
First steps in QGIS In this blog post, we’ll explore how to install and start with QGIS.

Here the step-by-step: www.miriam-lerma.com/blog/2026-01...

27.01.2026 14:43 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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

27.01.2026 14:42 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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'

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'

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

26.01.2026 12:09 πŸ‘ 51 πŸ” 13 πŸ’¬ 1 πŸ“Œ 0

Thanks for sharing the link! This is very important 🫠 much appreciated.

22.01.2026 09:58 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Estudiando gaviotas cocineras urbanas (Coquimbo) y silvestres (Damas), encontramos que las gaviotas urbanas muestran comportamiento sinantrΓ³pico y baja movilidad todo el aΓ±o, mientras que las silvestres ajustaron sus movimientos.

10.1002/ece3.72974

#ornithology #seabirds #gulls
#FaunaUrbana #Chile

21.01.2026 09:37 πŸ‘ 5 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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πŸ“£ 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

πŸ‘‰ Register now: psg.wildapricot.org/event-626370...

15.01.2026 16:24 πŸ‘ 7 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
Contour lines In this blog post, we’ll explore how to plot contour lines from a raster using bathymetry data as an example.

Here the step-by-step: www.miriam-lerma.com/blog/2025-12...

04.12.2025 16:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Last post of 2025! πŸŽ‰
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

04.12.2025 16:31 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Marine Protected Areas In this blog post, we’ll explore maritime protected areas (MPAs), walking through the process of downloading the data and visualizing it.

Here step-by-step: www.miriam-lerma.com/blog/2025-11...

09.11.2025 13:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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

09.11.2025 13:47 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Exclusive Economic Zones (EEZ) 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.

Here Step-by-step: www.miriam-lerma.com/blog/2025-10...

12.10.2025 15:12 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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

12.10.2025 15:11 πŸ‘ 5 πŸ” 1 πŸ’¬ 1 πŸ“Œ 1
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What to eat when far from home? A vagrant seabird selects novel but analogous prey | http://www.marineorn... | Marine Ornithology | #ornithology #seabirds πŸͺΆ

02.09.2025 07:16 πŸ‘ 35 πŸ” 8 πŸ’¬ 0 πŸ“Œ 0
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Miriam Lerma: Underwater Power and Telecomunication Cables In this month’s blog post, I map the underwater cable network of the German North Sea using open data from EMODnet. With R, I explore and visualize both telecommunication and power cables.

Here Step-by-step: www.miriam-lerma.com/posts/2025-0...

01.09.2025 11:19 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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

01.09.2025 11:18 πŸ‘ 7 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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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.

πŸ“°: https://tinyurl.com/yezeyxu2

06.08.2025 08:30 πŸ‘ 48 πŸ” 20 πŸ’¬ 1 πŸ“Œ 5
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Miriam Lerma: Oil and Gas Offshore Installations In this month’s blog post, we'll explore oil and gas infrastructure in the German North Sea, by using EMODnet geospatial data to map offshore installations and pipelines, as well as focusing on a site...

#Rstats #GeospatialAnalysis #DataVisualization #oil #gas #Borkum
www.miriam-lerma.com/posts/2025-0...

04.08.2025 08:54 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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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

04.08.2025 08:52 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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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

16.07.2025 07:43 πŸ‘ 21 πŸ” 5 πŸ’¬ 1 πŸ“Œ 5
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

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

NEW PAPER: Same-sex partnerships in birds: a review of the current literature and a call for more data.

➑️ vist.ly/3n99bk6

#ornithology #birds #same-sexbehaviour #review #partnerships @tashgillies.bsky.social @katrina-siddiqi.bsky.social

Illustration: @bertillemohring.bsky.social

13.07.2025 12:27 πŸ‘ 142 πŸ” 59 πŸ’¬ 0 πŸ“Œ 6

Hi! The meetings sound fantastic! I was wondering, are they specifically intended for PhDs working in the marine environment around the British and Irish Isles, or are they also open to postdocs or others studying seabirds more broadly? Always curious about others' work in the field.🌈

11.07.2025 15:29 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Miriam Lerma: Offshore Wind Farms This blog post demonstrates how to visualize offshore wind farm data in the German North Sea using R. It covers data download, exploration, mapping with ggplot2, and calculating areas developed before...

Link: www.miriam-lerma.com/posts/2025-0...

01.07.2025 09:16 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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

01.07.2025 09:15 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0