Endangered Species Research

ESR is a journal with a focus on the ecology and protection of #endangered life. Only #openaccess and peer-reviewed articles.

[Endangered Species Research @ESR_IR]

Ringed seals are exposed to more ship traffic as #SeaIce declines. In Arctic Alaska, #RingedSeals were regularly exposed to multiple types of vessels during 2013-2022 open‑water seasons. The effects of vessel exposure require more research. https://t.co/BvPDcji8Rw

[Endangered Species Research @ESR_IR]

Shark vertebrae hold lifelong chemical records. Using stable isotopes, our new study reconstructs diet and habitat shifts in the Critically Endangered scalloped bonnethead—delivering key ecological insights to better guide conservation. https://t.co/s4sekQBoXd

[Endangered Species Research @ESR_IR]

Ultrasound scans identify the Al Wajh Lagoon (Red Sea) as the first documented gestation site for Critically Endangered halavi #guitarfish and Endangered reticulate #whipray, refining size-at-maturity and indicating localized pupping. https://t.co/9YsatiRMoR

[Endangered Species Research @ESR_IR]

The 1st DNA-verified record of copper shark Carcharhinus brachyurus in Chile; 24 sharks were reorted in artisanal landings at Antofagasta, extending species' eastern Pacific range southward and highlighting need for monitoring and management of bycatch. https://t.co/uF9KsA6yjs

[Endangered Species Research @ESR_IR]

North Pacific male #Loggerheads utilize high-latitude foraging grounds around 40°N during the summer regardless of their growth stage or reproductive status. High-latitude habitats would be more important for males than previously thought. https://t.co/Vl6X5v01NT

[Endangered Species Research @ESR_IR]

24 males contributed to the nests of 23 females at Jumby Bay, Antigua. Our data show low multiple paternity and an even breeding sex ratio for 2013, providing baselines for hawksbills in the Eastern Caribbean to establish trends over time. https://t.co/ZrxUpCekme

[Endangered Species Research @ESR_IR]

New data from tagged fin whales in southern New England show low non-song call rates during mid-summer. Calls from males were most frequent during nighttime feeding, indicating context-dependent sound production and implications for acoustic detection. https://t.co/0elhjLwXfX

[Endangered Species Research @ESR_IR]

Long-term tagging of the flapnose houndshark Scylliogaleus quecketti conducted by the Oceanographic Research Institute in the Pondoland MPA found this species extremely resident with a small home range. It is likely well protected in no-take MPAs. https://t.co/knVttIuROn

[Endangered Species Research @ESR_IR]

Pinna nobilis is an endemic Mediterranean bivalve, critically endangered after a mass mortality event that began in 2016. In Tabarca Marine Reserve, Spain, mortality reached 100%. Pinna rudis is now filling its ecological niches. https://t.co/t5lDPdT05Q

[Endangered Species Research @ESR_IR]

A decade of acoustic telemetry reveals new insight into survival of juvenile #GulfSturgeon (Acipenser desotoi) in Florida’s #ApalachicolaRiver, improving understanding of this threatened species and supports informed conservation efforts. https://t.co/F6LlE3nuHV

[Endangered Species Research @ESR_IR]

Tracking of 23 #LoggerheadTurtles from Tanegashima revealed five core foraging areas across warm and cold seasons in the East China Sea. Larger individuals tended to use the Tsushima Strait. Results inform targeted conservation planning. https://t.co/4P7zhCdUBw

[Endangered Species Research @ESR_IR]

Community-engaged surveys of Green sea turtle in the Azores Archipelago found 69 sightings near Faial Island and Pico Island. All were juveniles (10–79 cm), confirming the area as a transient foraging ground. https://t.co/aClzoRGyAe

[Endangered Species Research @ESR_IR]

Green turtles need on average 1.5 years to recover from anthropogenic injuries, longer for severe trauma. Recurring propeller strikes and fishing line entanglements at Liuqiu Island, Taiwan, highlight the need for go-slow zones and responsible fishing. https://t.co/rjXM1KKBwe

[Endangered Species Research @ESR_IR]

New research identifies key preferences for low banks & flat ground in captive Chinese alligtors. Optimizing these habitat features can improve breeding success for this critically endangered species. #WildlifeConservation #Alligator #EndangeredSpecies https://t.co/odpHsTA0yw

[Endangered Species Research @ESR_IR]

Critically Endangered tope sharks face threats across Europe. Combining angler, fishery and beam trawl data confirms a vital pupping ground in the Dutch Wadden Sea and nearby North Sea waters, supporting efforts for future protection. https://t.co/lt8f5I6KEV

[Endangered Species Research @ESR_IR]

When an American crocodile in South Florida died unexpectedly during a routine capture event, a field necropsy revealed clinical signs of Pb toxicosis and 22.42 g of Pb in the animal’s stomach. https://t.co/UL70qxBzE8

[Endangered Species Research @ESR_IR]

ESR Special #27. Southern Africa is home to well over 200 species of #Chondrichthyans. Over a third are considered threatened. This Special is open to all authors, including submissions based on presentations at the 8th SARS in 2025. Contribute now! https://t.co/nIrlcKCqq5

[Endangered Species Research @ESR_IR]

ESR Special #26. Initiated at the end of the 20th century, many #MarineTurtle monitoring programs have been ongoing for two or more decades and provide valuable insights into population dynamics and conservation. Contribute now! https://t.co/JwQELx1X1U

[Endangered Species Research @ESR_IR]

We developed a novel modeling framework, integrating disparate data types over 45 yrs, to estimate true survival of the #MojaveDesertTortoise. Our results suggest positive effects of precipitation and higher survival of adult males. https://t.co/zSd016vXPT

[Endangered Species Research @ESR_IR]

Our morphometric study of the endangered Longfin Smelt (Spirinchus thaleichthys) shows clear sex-based shape differences and weak geographic trends. These findings help inform conservation and reproductive biology in the San Francisco Estuary. https://t.co/33namJqBVA