Declining adult survival of New Zealand Bar-tailed Godwits during 2005–2012 despite apparent population stability

  title={Declining adult survival of New Zealand Bar-tailed Godwits during 2005–2012 despite apparent population stability},
  author={Jesse R Conklin and Tamar Lok and David S. Melville and Adrian C. Riegen and Rob Schuckard and Theunis Piersma and Phil F. Battley},
  journal={Emu - Austral Ornithology},
  pages={147 - 157}
Abstract Like many migratory shorebird populations using the East Asian—Australasian Flyway, Bar-tailed Godwits Limosa lapponica baueri in New Zealand have significantly declined since the mid-1990s, but census data indicate a relatively stable population since 2004. The demographic drivers of both the decline and stabilisation remain unknown. We estimated annual survival from mark—recapture data of adult godwits in New Zealand during 2005–2014. Annual adult survival declined over the study… 

Apparent adult survival of the critically endangered Baltic Dunlin Calidris alpina schinzii during a period of strong population decline

The results suggest that gradual long-term changes in adult survival may have contributed to the decline of the Baltic Dunlin.

Apparent annual survival of adult Whimbrels in the Pacific Americas Flyway

High adult survival is considered an important component of population stability, particularly for long-lived, largebodied shorebirds that exhibit delayed maturity and low fecundity (Piersma & Baker

Persistent use of a shorebird staging site in the Yellow Sea despite severe declines in food resources implies a lack of alternatives

Many shorebird populations are in decline along the East Asian-Australasian Flyway. The rapid loss of coastal wetlands in the Yellow Sea, which provide critical stop-over sites during migration, is

Demography of a stable population of Crab Plovers wintering in Oman

AbstractThe monotypic Crab Plover Dromas ardeola winters around the shores of the Indian Ocean and breeds in colonies on islands around the Arabian Peninsula. The IUCN lists the world population of

Fuelling and moult in Red Knots before northward departure: a visual evaluation of differences between ages, sexes and subspecies

It is suggested that, during northward staging in the Yellow Sea, there is strong variation in fuelling rates between and within subspecies depending on non-breeding origin and the ongoing loss of staging habitat may have differential effects on Red Knots in the East Asian-Australasian Flyway.

Seasonal and population differences in migration of Whimbrels in the East Asian–Australasian Flyway

Background Conserving migratory birds is challenging due to their reliance on multiple distant sites at different stages of their annual life cycle. The concept of “flyway”, which refers to all areas

Conservation without borders—solutions to declines of migratory shorebirds in the East Asian—Australasian Flyway

International actions mediated among flyway partners, for example bilateral agreements on the preservation of intertidal mudflats and co-funding to support this, are critical to halting shorebird population declines.

The large‐scale drivers of population declines in a long‐distance migratory shorebird

Migratory species can travel tens of thousands of kilometers each year, spending different parts of their annual cycle in geographically distinct locations. Understanding the drivers of population

A global threats overview for Numeniini populations: synthesising expert knowledge for a group of declining migratory birds

Summary The Numeniini is a tribe of 13 wader species (Scolopacidae, Charadriiformes) of which seven are Near Threatened or globally threatened, including two Critically Endangered. To help inform

Distribution and abundance of migratory shorebirds in Darwin Harbour, Northern Territory, Australia

Here we report the results of an aerial survey of migratory shorebirds in Darwin Harbour, Northern Territory, Australia, as part of a new project on strategic planning for the Far Eastern Curlew



Rapid population decline in red knots: fitness consequences of decreased refuelling rates and late arrival in Delaware Bay

  • A. BakerP. González G. Aarts
  • Environmental Science
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 2004
Demographic modelling predicts imminent endangerment and an increased risk of extinction of the subspecies without urgent risk–averse management of the red knot population wintering in Tierra del Fuego, seriously threatening the viability of this subspecies.

Migration ecology and morphometries of two Bar-tailed Godwit populations in Australia

Using measurements of bill, wing, tarsus and total-head, it is shown that birds from the two main Australian non-breeding regions belong to separate populations, and that on northward migration, L. l.

Contrasting extreme long-distance migration patterns in bar-tailed godwits Limosa lapponica

Two subspecies of bar-tailed godwit Limosa lapponica travelling between non-breeding grounds in New Zealand and northwest Australia and breeding grounds in Alaska and eastern Russia are compared, and baueri makes the longest (southbound) and second-longest non-stop migratory flights documented for any bird.

Simultaneous declines in summer survival of three shorebird species signals a flyway at risk

Summary 1. There is increasing concern about the world’s animal migrations. With many land-use and climatological changes occurring simultaneously, pinning down the causes of large-scale conservation

Wayward Youth: Trans-Beringian Movement and Differential Southward Migration by Juvenile Sharp-tailed Sandpipers

Normal.dotm 0 0 1 282 1611 University of Calgary 13 3 1978 12.0 0 false 18 pt 18 pt 0 0 false false false The sharp-tailed sandpiper ( Calidris acuminata ) is a long-distance migrant that travels

The importance of Yalu Jiang coastal wetland in the north Yellow Sea to Bar-tailed Godwits Limosa lapponica and Great Knots Calidris tenuirostris during northward migration

Summary Bar-tailed Godwits Limosa lapponica and Great Knots Calidris tenuirostris are long-distance migratory shorebirds with declining numbers in the East Asian-Australasian Flyway. One of the most

Analyzing Variability and the Rate of Decline of Migratory Shorebirds in Moreton Bay, Australia

If the declines in Moreton Bay are consistent with trends from other sites across the flyway as a whole, then a large number of species are in significant decline, and these declines are associated with a higher rate of false detections.

Seasonal mortality and sequential density dependence in a migratory bird

It is concluded that seasonal compensation in local survival allowed the islandica population as a whole to cope, in 1998–2003, with the loss of half of the suitable feeding habitat in part of the nonbreeding range, the western Dutch Wadden Sea.

Key research issues concerning the conservation of migratory shorebirds in the Yellow Sea region

Summary The widespread decline of migratory shorebirds in the East Asian-Australasian Flyway (EAAF) is one of the greatest crises for migrating birds. Among the migratory species with known