References

Further evidence that Antarctic toothfish are important to Weddell seals

10.1017/s0954102020000437 · 2021 · External reference

A review on sex steroid hormone estrogen receptors in mammals and fish

2020 · External reference

Unresolved reference

External reference

Reproductive biology of seals

10.1530/ror.0.0020175 · 1997 · External reference

Seasonal testosterone pattern in Hawaiian monk seals (Monachus schauinslandi)

10.1530/jrf.0.0960035 · 1992 · External reference

Territorial behavior and breeding frequency of male Weddell seals (Leptonychotes weddellii) in relation to age, size, and concentrations of serum testosterone and cortisol

10.1139/z92-102 · 1992 · External reference

Variations, validations, degradations, and noninvasive determination of pregnancy using fecal steroid metabolites in free-ranging pronghorn

10.1016/j.ygcen.2021.113841 · 2021 · External reference

Unresolved reference

External reference

Estrus and estrous behavior

2009 · External reference

Impacts of environmental stressors on fertility and fecundity across taxa, with implications for planetary health

10.1038/s44454-026-00032-6 · 2026 · External reference

Validation of a non-invasive tool for monitoring adrenocortical activity in fat-tailed dunnarts (Sminthopsis crassicaudata)

10.1071/am25016 · 2026 · External reference

Urinary cortisol sampling: a non-invasive technique for examining cortisol concentrations in the Weddell seal, Leptonychotes weddellii

10.1002/zoo.20088 · 2006 · External reference

Non-invasive monitoring of faecal androgens in spotted hyenas (Crocuta crocuta)

10.1016/j.ygcen.2003.08.011 · 2004 · External reference

Cyclic changes in cortisol across the estrous cycle in parous and nulliparous Asian elephants

10.1530/ec-14-0025 · 2014 · External reference

One size does not fit all: monitoring faecal glucocorticoid metabolites in marsupials

10.1016/j.ygcen.2015.10.011 · 2017 · External reference

Antarctic landfast sea ice: a review of its physics, biogeochemistry and ecology

10.1029/2022rg000770 · 2023 · External reference

International Society for Wildlife Endocrinology: the future of endocrine measures for reproductive science, animal welfare and conservation biology

10.1098/rsbl.2011.1181 · 2012 · External reference

Biomarkers of reproductive health in wildlife and techniques for their assessment

10.1016/j.therwi.2023.100052 · 2023 · External reference

Validation and application of noninvasive glucocorticoid and thyroid hormone measures in free-ranging Hawaiian monk seals

10.1016/j.ygcen.2013.10.020 · 2014 · External reference

A versatile enzyme immunoassay for the determination of progestogens in feces and serum

10.1002/zoo.1022 · 2001 · External reference

Unresolved reference

External reference

Food transit times in captive leopard seals (Hydrurga leptonyx)

10.1007/s00300-010-0862-4 · 2011 · External reference

Effects of capture stress on free-ranging, reproductively active male Weddell seals

10.1007/s00359-009-0501-0 · 2010 · External reference

Contrasting behavior between two populations of an ice‐obligate predator in East Antarctica

10.1002/ece3.2652 · 2017 · External reference

Endocrine monitoring of reproduction and stress

2010 · External reference

Weddell seal: Leptonychotes weddellii

2018 · External reference

Evaluation of fecal hormones for noninvasive research on reproduction and stress in humpback whales (Megaptera novaeangliae)

10.1016/j.ygcen.2019.04.004 · 2019 · External reference

The use of noninvasive and minimally invasive methods in endocrinology for threatened mammalian species conservation

10.1016/j.ygcen.2014.04.022 · 2014 · External reference

Circulating concentrations of progesterone and estrogen in Weddell seals during the breeding period and early pregnancy

10.1096/fasebj.30.1_supplement.979.2 · 2016 · External reference

Post-lactation mass recovery and metabolic hormone dynamics in adult female Weddell seals

10.1016/j.ygcen.2025.114706 · 2025 · External reference

Unresolved reference

1981 · External reference

Movements of adult female Weddell seals during the winter months

10.1007/s00300-005-0050-0 · 2006 · External reference

Annual cycle of the Weddell seal in the Vestfold Hills, Antarctica

10.2307/1378127 · 1966 · External reference

The breeding behaviour and reproductive cycle of the Weddell seal (Leptonychotes weddelli Lesson)

1958 · External reference

Impacts of artificial light at night in marine ecosystems—a review

10.1111/gcb.16264 · 2022 · External reference

Harnessing reproductive biology to conserve wildlife species

10.1071/rd26022 · 2026 · External reference

Killer whale fecal samples: how to get the most out of a single extraction

10.1016/j.ygcen.2024.114544 · 2024 · External reference

Health and condition in the adult Weddell seal of McMurdo Sound, Antarctica

10.1016/j.zool.2010.11.007 · 2011 · External reference

Impacts of climate change and environmental factors on reproduction and development in wildlife

10.1098/rstb.2009.0175 · 2009 · External reference

Measuring fecal steroids: guidelines for practical application

10.1196/annals.1343.007 · 2005 · External reference

Non-invasive measurement of glucocorticoids: advances and problems

10.1016/j.physbeh.2018.11.021 · 2019 · External reference

Steroid extraction: get the best out of faecal samples

2013 · External reference

Reproductive cycles of marine mammals

10.1016/j.anireprosci.2010.08.021 · 2011 · External reference

Unresolved reference

2022 · External reference

How genetic data improve the interpretation of results of faecal glucocorticoid metabolite measurements in a free-living population

10.1371/journal.pone.0183718 · 2017 · External reference

Progesterone and oestradiol-17β concentration profiles throughout the reproductive cycle in harbour seals (Phoca vitulina)

10.1530/jrf.0.0900403 · 1990 · External reference

Characterization and longitudinal monitoring of serum progestagens and estrogens during normal pregnancy in the killer whale (Orcinus orca)

10.1016/j.ygcen.2016.07.010 · 2016 · External reference

Assessing reproductive status of right whales (Eubalaena glacialis) using fecal hormone metabolites

10.1016/j.ygcen.2005.02.002 · 2005 · External reference

Deep foraging dives in relation to the energy depletion of Weddell seal (Leptonychotes weddellii) mothers during lactation

10.1007/s00300-002-0406-7 · 2002 · External reference

Human steroid biosynthesis, metabolism and excretion are differentially reflected by serum and urine steroid metabolomes: a comprehensive review

10.1016/j.jsbmb.2019.105439 · 2019 · External reference

A review of non-invasive sampling in wildlife disease and health research: what’s new?

10.3390/ani12131719 · 2022 · External reference

The role of estradiol in male reproductive function

10.4103/1008-682x.173932 · 2016 · External reference

Hormone monitoring: an important tool for the breeding management of wildlife species

2013 · External reference

The Weddell seal: eco-physiological adaptations to a high-latitude seasonal environment

10.1007/978-3-030-88923-4_13 · 2022 · External reference

How do overwinter changes in body condition and hormone profiles influence Weddell seal reproductive success?

10.1111/1365-2435.12434 · 2015 · External reference

An analysis of the dynamics of a Weddell seal population

10.2307/1942520 · 1977 · External reference

Opinion: projecting the effects of environmental change on Antarctic seals

10.1017/s0954102008001351 · 2008 · External reference

Ecology of the Weddell seal in McMurdo sound, Antarctica

10.2307/1936247 · 1969 · External reference

Weddell seal: Leptonychotes weddellii

2009 · External reference

Measuring fecal glucocorticoid metabolites in mammals and birds: the importance of validation

10.1196/annals.1343.006 · 2005 · External reference

Faecal testosterone concentrations and the acoustic behaviour of two captive male Australian fur seals

10.1071/am09009 · 2009 · External reference

Origins of natural and anthropogenic sounds in a coastal, seasonally ice-covered, Antarctic marine soundscape

10.3354/meps14813 · 2025 · External reference

Tightening the sphincter on faecal sample anonymity: the case of the Weddell seal (Leptonychotes weddellii)

2026 · External reference

Under-ice movements and the sensory basis of hole finding by ringed and Weddell seals

10.1139/z92-238 · 1992 · External reference

A snapshot of biodiversity protection in Antarctica

10.1038/s41467-019-08915-6 · 2019 · External reference

Ice matters: life-history strategies of two Antarctic seals dictate climate change eventualities in the Weddell Sea

10.1111/gcb.15828 · 2021 · External reference

Early diving behavior in Weddell seal (Leptonychotes weddellii) pups

10.1093/jmammal/gyab058 · 2021 · External reference

Feast or famine: evidence for mixed capital–income breeding strategies in Weddell seals

10.1007/s00442-007-0888-7 · 2008 · External reference

Getting started with ggplot2

2016 · External reference

Validation of an enzyme immunoassay for the non-invasive measurement of faecal androgen metabolites in spinifex hopping mice (Notomys alexis)

10.1071/am22025 · 2022 · External reference

Behavioural and faecal cortisol metabolite monitoring of harbour (Phoca vitulina) and grey seal pups (Halichoerus grypus) in rehabilitation centres

2026 · External reference