Discover and read the best of Twitter Threads about #ISTC20

Most recents (22)

14/21 #ISTC20 #Sesh9
There is much scope in combining Earth observations with Down-to-Earth observations of tracked #shorebirds. We developed a very satisfactory LAND USE INTENSITY metric based on @Sentinel1a explaining godwit distributions.… @ESA_EO @esa
15/21 #ISTC20 #Sesh9
We were able to show the value of both this new LAND USE INTENSITY metric as well as distribution of tagged godwits during hot dry summer of 2018, when much of what is now evergreen pasture turned brown. #climatechange #Dairy @RuthHowison @DairyCampus
16/21 #ISTC20 #Sesh9
Distribution of tagged black-tailed #godwits in early summer was better predictor of #drought damage than land use intensity. Interpretation: #grutto's select intact #soils with capillary connections with #groundwater. #meadowbirds #sentinels @WaderStudy
Read 8 tweets
1/21 #ISTC20 #Sesh9
Hi shorebird folks! 1more4U2go! Migratory shorebirds connect. Movements, presence & phenotypes signal the state of habitats. Let's develop tracked individual migratory birds as sentinels (of connected parts) of Earth. #ornithology #globalchange @WaderStudy
2/21 #ISTC20 #Sesh9
Recently, 100 units of fossil energy produced 104 energy units of food, thanks soil-based processes. Now, 100 units fossil energy yield 16 food units, the 84% loss equals release of CO2 & active nitrogen threatening climate & biodiversity. #globalchange #dairy
3/21 #ISTC20 #Sesh9
Looking at scale of a country then, steep decline of specialized #dairy #farmland #wader, black-tailed #godwit (#grutto) in Netherlands signals growth of unsustainable, climate & biodiversity threatening, practices in agriculture. #globalchange @WaderStudy
Read 14 tweets
1⃣ #ISTC20 #Sesh8 👋I'm a PhD candidate exploring #shorebird communication across the eggshell in Melbourne, Australia. Some avian embryos can begin calling late in incubation and can communicate with parents through the eggshell🥚Have a listen to these embryonic calls, below!
2⃣ #ISTC20 #Sesh8 Visual egg and nest crypsis is a common shorebird defence strategy but some predators may use embryonic vocalisations as an acoustic cue to locate these hard to find nests🦊
3⃣ #ISTC20 #Sesh8 We know that shorebird hatchlings rely on acoustic crypsis, hiding and becoming silent in the presence of a predator🐣 So, could this defence strategy begin prenatally and do embryos cease calling when exposed to signals that suggest a predator is nearby?
Read 6 tweets
1/6 #ISTC20 #Sesh8
Knowing where (how high) birds fly in the air is important in this changing world. Because we have windfarms, airplanes, and tall buildings, all of which have the potential to impact the flight altitude of avian migrants. #ornithology #ClimateChange
2/6 #ISTC20 #Sesh8
R.Q: What are the important drivers for flight altitude selection of avian migrants?

Studies (radar) suggest migrants select flight altitude to maximise wind support. However, a few have taken a quantitative approach. So, we tested these 4 hypothesis:
3/6 #ISTC20 #Sesh8
To test these hypotheses we used the GSM-GPS tracking data of far eastern curlew and whimbrel.

We compared weather conditions of altitude bins at which birds migrated with other altitude bins that birds did not choose to migrate, using 'coxph' model.
Read 6 tweets
1/6 140 VWSG volunteers have been monitoring waders in SE Aus for 40 years. We have several important sites around Victoria, Tas & S. Australia for catching and banding waders. Data are used for pop monitoring, migration route, survival and repro rate assessment 
#ISTC20 #Sesh8
2/6 Using geolocators we have revealed the AMAZING migration of Ruddy Turnstones. Flagging shows individuals return to exactly the same stretch of beach on King Island each summer. Adult birds migrate ~12,500km to Siberia to breed before returning
#ISTC20 #Sesh8
3/6 Curlew Sandpipers are experiencing drastic population declines. Through tracking, we find that they leave earlier, use fewer sites, are more site specific, and arrive later than Red-necked Stint, which has only minor population declines. #ISTC20 #Sesh8
Read 6 tweets
1/6 We know very little about viruses in #shorebirds. They are important in the epidemiology of some viruses (influenza, coronavirus), but many viruses to be discovered in this host group
#ISTC20 #Sesh7
2/6 Shorebirds are a central reservoir host for low pathogenic avian influenza virus globally (these viruses don't cause disease).
Some species, like Ruddy Turnstone have high levels of seroprevalence. In Aus, varying levels of infection across shorebird species
#ISTC20 #Sesh7
3/6 #Shorebirds are important reservoirs for a diversity of coronaviruses (different from COVID). Prevalence in Aus is comparable to influenza. We have also described a new coronavirus, currently only found in Aus shorebirds
Review here:…
#ISTC20 #Sesh7
Read 6 tweets
1 #ISTC20 Low reproductive success threatens long-term viability of many #shorebird populations. Hooded Plovers (aka hoodies) are highly threatened #BeachNestingBirds along AUS southern coast and impacted by threats like human disturbance and introduced & superabundant predators.
2 #ISTC20 Threats’ impact on egg & chick survival is poorly understood. We set up remote-sensing cameras on 81 Hoodie clutches along the Victorian coast to confirm nest fate, and radio-tagged 27 Hoodie chicks (from 27 broods) to monitor survival and determine causes of mortality.
3 #ISTC20 Threats' impact on egg and chick survival is poorly understood. We set up remote-sensing cameras on 81 Hoodie clutches to confirm nest fate, and radio-tagged 27 Hoodie chicks (+22 untagged siblings were monitored) to monitor survival and determine causes of mortality.
Read 6 tweets
1 #ISTC20 Monitoring from 1980 onwards revealed a decline in Hooded Plover population along Victorian coast (southern Australia). From 2006, @birdlifeoz runs a broad-scale adaptive management project to improve this declining trajectory by managing threats to breeding birds.
2 #ISTC20 We identified human disturbance and invasive predators as major threats. Our objectives are to ⬆️breeding success to ⬆️population & protect habitat. >500 trained #CitizenScientists monitor breeding Hooded Plover pairs across ~300 sites in Victoria and South Australia.
3 #ISTC20 Taking the Bellarine Pen & Surf Coast as an example, within 12 years of recovery effort, the population has increased from 9 to 22 breeding pairs. Working with land managers & volunteers, we’re protecting 22 breeding sites via on-ground actions, education & regulations.
Read 6 tweets
1 #ISTC20 #Sesh7 OK here’s a thread on #languagebarriers. Yes you are in the right conference. This is still about shorebirds. What I mean is I will explain how language barriers can affect the conservation of shorebirds (or any other species). So don’t leave! #ornithology
#ISTC20 #Sesh7 I will also tweet the same content in Japanese during the break after Session 7. Sadly I am not fluent enough to tweet in other languages, but feel free to translate my tweets into any language! セッション7後の休憩時間中に日本語でもツイートしますのでご覧ください。
2 #ISTC20 #Sesh7 So, why languages? Shorebirds’ incredible migration (image: @GlobalFlyway) means their annual cycles span across multiple countries, and this poses a challenge to conservation, as we need to coordinate across countries, where the language is often different.
Read 26 tweets
#ISTC20 #Sesh5 1/16 I thank the organisers for a chance to present my research here. I work on the Spoon-billed sandpiper (SBS), a charismatic species, characterised by an unusual shape of its beak. It is also critically endangered, with <200 pairs left in the wild. The Spoon-billed sandpiper on the breeding site in Meinypylg
#ISTC20 #Sesh5 2/16 SBS breeds only in Chukotka (the most North-Eastern part of Eurasia). It flies to Southeast Asia for winter, stopping at key sites in China and other countries during the trip. It is a flagship and umbrella species helping to shape environmental policy. The flyway of SBS. The historical breeding range is in red.
#ISTC20 #Sesh5 3/16 We supplemented the headstarting efforts of this species with a thorough genomic analysis. To this end, we sequenced ~10 SBS complete genomes from different locations along the breeding range. The quality of the reference genome is comparable to chicken. Statistics of the genome, including how many key genes we fi
Read 16 tweets
1/21 #ISTC20 Hello to all! It’s a pleasure to greet you from Santiago de Chile and share the experiences and perspectives of @WHSRN @ManometCenter with participants in the International Shorebird Twitter Conference 2020 #Sesh4
2 #ISTC20 During the 1980s, Canadian researchers Guy Morrison and Ken Ross flew the entire coast of South America, identifying from the air a series of key sites holding large numbers of shorebirds #Sesh4
3 #ISTC20 In May 1986, scientists, political leaders and local citizens came together to support the designation of Delaware Bay (USA) as the first WHSRN site, due to it supporting more than 500,000 shorebirds each year, and in particular the rufa subspecies of Red Knot #Sesh4
Read 21 tweets
1/23 Thanks first to organizers of this new age conference, for inviting me to join in. I am very excited to be here with shorebird researchers from around the Twitter and real worlds #ISTC20 #SESH3 #ornithology #Waders
2/25 My tweets will explore the effects of extreme weather events on the demography of a small sub-arctic breeding shorebird: Semipalmated Plover (Charadrius semipalmatus) #ISTC20 #SESH3
3/23 Much attention of climate research and birds has been on warming: mismatching phenology in particular. But we know extreme weather can have a major impact on pop’n. Deaths of these songbirds probably due to recent fires and drought in western USA #ISTC20 #SESH3
Read 23 tweets
1 #ISTC20 #Sesh2 Hi everyone! Migratory ranges emerge from individual journeys between breeding and winter sites each year. Tracking these individual journeys in space and time can help us understand how migratory ranges form and change… #ornithology
2 #ISTC20 #Sesh2 Since the 1990s, and with an amazing network of observers (‘godwiteers’), we have marked thousands of Icelandic black-tailed godwits and tracked them on their annual journeys between Iceland and W Europe… #ornithology
3 #ISTC20 #Sesh2 The breeding and winter ranges of Icelandic godwits have expanded northwards, but have these changes involved (a) individuals shifting sites or (b) generational change, with new generations occupying different sites?… #ornithology
Read 12 tweets
1 #ISTC20 #Sesh1 #ornithology Hello everyone. Thanks for the organizer of ISTC and Ryan. You can find my detailed information at…. It’s my great honor to share the study of my team on shorebirds and their habitats in the Yellow Sea in China.
2 #ISTC20 #Sesh1 Migratory shorebirds depend on the linkage of breeding, nonbreeding, and stopover sites between them to maintain their population. The Yellow Sea (YS) region provides critical stopover sites for migratory shorebirds in the East Asian-Australasian Flyway (EAAF).
3 #ISTC20 #Sesh1 The Yellow Sea (YS), including Bohai Bay in the northwest, is surrounded by Chinese mainland and Korea Peninsular. It has the largest tidal wetland (more than 10,000 km2) worldwide.
Read 22 tweets

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