Tessa E. Smith

Validating the underpinnings of water corticosterone measurement for aquatic amphibians

Tessa E. Smith, Andrew M. Holmes, Christopher J. Emmans, Robert H. Coleman et autres

Background Good animal welfare is important ethically but also to ensure animals provide valid scientific models. Despite thousands of amphibians in research laboratories there is minimal quantitative evidence pertaining to their management and welfare. This study validated methods to non-invasively measure corticosterone, …

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Author response for "A new double observer‐based census framework to improve abundance estimations in mountain ungulates and other gregarious species with a reduced effort"

Matteo Panaccio, Alice Brambilla, Bruno Bassano, Tessa E. Smith et autres

A new double observer‐based census framework to improve abundance estimations in mountain ungulates and other gregarious species with a reduced effort

Matteo Panaccio, Alice Brambilla, Bruno Bassano, Tessa E. Smith et autres

Abstract Estimating animal abundance has a key role to play in ecology and conservation, but survey methods are always challenged by imperfect detection. Among the techniques applied to deal with this issue, Double Observer (DO) is increasing in popularity due to its …

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A double ovulation protocol for Xenopus laevis produces doubled fertilisation yield and moderately transiently elevated corticosterone levels without loss of egg quality

Chloe Moss, Barbara Vacca, Jo Arnold, Chantal J. Hubens et autres

The African claw-toed frog, Xenopus laevis, is a well-established laboratory model for the biology of vertebrate oogenesis, fertilisation, and development at embryonic, larval, and metamorphic stages. For ovulation, X. laevis females are usually injected with chorionic gonadotropin, whereupon they lay typically hundreds …

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In Absentia—Can a Lack of Behaviour Be a Useful Welfare Indicator? An Application to the Captive Management of Livingstone’s Fruit Bats, Pteropus livingstonii

Morgan J. Edwards, Charlotte A. Hosie, Laura Naidenov, Eluned C. Price et autres

Non-invasive behavioural indicators of welfare can be particularly useful for managing captive breeding populations of endangered species; these allow individual welfare to be monitored and reproductive success maximised without the need for capture and restraint methods. However, most studies focus on the …

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Author response for "A new double observer‐based census framework to improve abundance estimations in mountain ungulates and other gregarious species with a reduced effort"

Matteo Panaccio, Alice Brambilla, Bruno Bassano, Tessa E. Smith et autres

A double ovulation protocol for Xenopus laevis produces doubled fertilisation yield and moderately transiently elevated corticosterone levels without loss of egg quality

Chloe Moss, Barbara Vacca, Jo Arnold, Chantal J. Hubens et autres

Abstract The African claw-toed frog, Xenopus laevis , is a well-established laboratory model for the biology of vertebrate fertilisation and development. For ovulation, X. laevis females are usually injected with chorionic gonadotropin, whereupon they lay typically hundreds to thousands of eggs in …

gb (code pays fourni par la source)

Monitoring wildlife population trends with sample counts: a case study on the Alpine ibex ( Capra ibex )

Matteo Panaccio, Alice Brambilla, Bruno Bassano, Tessa E. Smith et autres

Monitoring population dynamics is of fundamental importance in conservation but assessing trends in abundance can be costly, especially in large and rough areas. Obtaining trend estimations from counts performed in only a portion of the total area (sample counts) can be a …

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Technical validation and a comparison of two methods to quantify individual levels of glucocorticoids in Alpine marmot hair

Elina Marielle Doss, Mathilde Jouffroy, Benjamin Rey, Aurélie Cohas et autres

Quantification of cortisol concentration in hair has become a promising conservation tool for non-invasive monitoring of "stress" in wild populations, yet this method needs to be carefully validated for each species. The goals of the study were:•Immunologically validate two methods (study 1 …

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Author response for "Monitoring wildlife population trends with sample counts: a case study on the Alpine ibex (Capra ibex)"

Matteo Panaccio, Alice Brambilla, Bruno Bassano, Tessa E. Smith et autres

Author response for "Monitoring wildlife population trends with sample counts: a case study on the Alpine ibex (Capra ibex)"

Matteo Panaccio, Alice Brambilla, Bruno Bassano, Tessa E. Smith et autres

Monitoring wildlife population trends with sample counts: A case study on the Alpine ibex (Capra ibex)

Matteo Panaccio, Alice Brambilla, Bruno Bassano, Tessa E. Smith et autres

Monitoring population dynamics is of fundamental importance in conservation but assessing trends in abundance can be costly, especially in large and rough areas. Obtaining trend estimations from counts performed in only a portion of the total area (sample counts) can be a …

gb, ch, it (code pays fourni par la source)