Rob Schuckard

Rob Schuckard

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32
Publications
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399
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Publications

Publications (32)
Article
Full-text available
During southward migration from Alaska in 2006, a satellite-tracked female bar-tailed godwit (Limosa lapponica baueri) encountered adverse weather and stayed between 19 September and about 28 September 2006 at Ouvéa (Loyalty Islands, New Caledonia), where she apparently died. Ouvéa was visited between 27 September and 7 October 2007 to look for god...
Article
Full-text available
Bar-tailed godwits (Limosa lapponica) were counted throughout New Zealand and on the east coast of Australia during the 2019-2020 austral summer, in the first attempt to assess the total population of the subspecies baueri on the southern hemisphere non-breeding grounds. Survey coverage in New Zealand was nationwide (158 sites surveyed); surveys in...
Article
Full-text available
While avian migration timing is clearly influenced by both breeding and non-breeding geography, it is challenging to identify the relative and interdependent roles of endogenous programs, early-life experience, and carry-over effects in the development of adult annual schedules. Bar-tailed godwits Limosa lapponica baueri migrate northward from New...
Article
Full-text available
Coordinated counts of waders across New Zealand have been undertaken in November and June since 1983; the consistent timing of counts aimed to reduce variation from the effect of seasonal changes in bird numbers. The Australian Shorebird census and the wider Asian Waterbird Census, however, are conducted in January, making direct comparison with th...
Technical Report
Full-text available
This document provides consistent and clear guidance for monitoring and managing water column effects of salmon farms in the Marlborough Sounds (NZ). The protocol for conducting water column monitoring, as well as the compliance framework are based around an agreed set of environmental quality standards (EQS). This is a living document that is revi...
Book
Full-text available
The unsurprising, but rather drastic changes necessary to realise, the spatially explicit ‘recipes’ for ideal meadowbird landscapes in southwest Friesland, will hopefully assist the rediscovery of the many benefits of healthy soils, high water tables and high biodiversity in terms of human health and happiness, quality of food and the ecosystem ser...
Book
Full-text available
Er zit één voordeel aan het dramatische verlies van weide- en akkervogels in Nederland, al is dat wel een cynisch voordeel: het heeft de negatieve bijwerkingen van de intensieve landbouw in ons landschap ontegenzeggelijk zichtbaar gemaakt! Onder de vogels die van de intensieve landbouw te lijden hebben, zijn onder andere veel steltlopers zoals de g...
Book
Full-text available
In the low countries of Europe, the downsides of industrial agriculture have been highlighted by the rampant loss of farmland birds, some of the most enigmatic of which are waders. The International Wader Study Group (IWSG) has played its role by first summarizing the ever declining numbers of breeding waders in Europe. In an attempt to be upbeat r...
Research
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The widespread distribution of many Threatened and At Risk coastal bird species highlights the need for a precautionary approach when considering future coastal management issues within the Tasman/Nelson Region.
Article
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1.Our understanding of the niche concept will remain limited while the quantity and range of different food types eaten remains a dominant proxy for niche breadth, as this does not account for the broad ecological context that governs diet. Linking nutrition, physiology and behaviour are critical to predict the extent to which a species adjusts its...
Article
Full-text available
Following an initial aerial census of breeding New Zealand king shags (Leucocarbo carunculatus) in 2015, 2 further aerial censuses were carried out in 2016 and 1 census in 2017. In 2016, birds were photographed on 2 separate dates using a hand-held camera from inside a fixed wing aircraft. In 2017 the birds were photographed from a fixed-wing plane...
Article
New Zealand's endemic King Shag (Leucocarbo carunculatus) has occupied only a narrow portion of the northeastern South Island for at least the past 240years. However, pre-human Holocene fossil and archaeological remains have suggested a far more widespread distribution of the three Leucocarbo species (King, Otago, Foveaux) on mainland New Zealand a...
Article
Full-text available
The foraging challenge for predators is to find and capture food with adequate levels of energy and nutrients. Marine predators require particularly sophisticated foraging strategies that enable them to balance self- and offspring-feeding, and also in many circumstances simultaneously consider the nutritional constraints of their partners. Here we...
Article
Full-text available
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...
Technical Report
Full-text available
This is intended as a guidance document to inform the development and implementation of benthic monitoring programmes for salmon farms in the Marlborough Sounds. The review of management practices and with it, the benthic standards and monitoring protocol, was initiated by New Zealand King Salmon Company Ltd (NZ King Salmon) and the Marlborough Dis...
Article
Full-text available
Patchily distributed marine pelagic prey present considerable challenges to predatory seabirds, including Gannets (Morus spp.) departing from large breeding colonies. Here, for the first time, we used GPS data loggers to provide detailed spatial, temporal, and habitat metrics of chick-rearing Australasian Gannets (Morus serrator) foraging behaviour...
Article
Full-text available
Migrating birds make the longest non‐stop endurance flights in the animal kingdom. Satellite technology is now providing direct evidence on the lengths and durations of these flights and associated staging episodes for individual birds. Using this technology, we compared the migration performance of two subspecies of bar‐tailed godwit Limosa lappon...
Article
Full-text available
The diet of the Australasian gannet (Morus serrator) at Farewell Spit, New Zealand, was studied by the analysis of 70 regurgitations collected from the 1995 to 2001 breeding seasons. Surface schooling pilchard (Sardinops neopilchardus) was the main prey, followed by anchovy (Engraulis australis). The composition of the diet was similar in most seas...
Article
The influence of seagrass beds on intertidal infaunal communities has been widely studied, with vegetated areas typically having higher diversity and abundances than adjacent bare sand patches. Such “seagrass–sand” comparisons, however, do not reflect the gradient of seagrass cover that may exist across large landscapes. We studied the large-scale...
Article
Full-text available
This study of the movements of two Arctic-breeding waders (bar-tailed godwit, Limosa lapponica baueri, and red knot, Calidris canutus rogersi) was commissioned in response to (A) a lack of knowledge of how individual birds use networks of sites around New Zealand, and (B) the threat of avian influenza viruses, as migrating waders are potential vect...
Article
Full-text available
King shags (Leucocarbo carunculatus) dispersing to feeding areas from breeding colonies on the Trio Islands and Stewart Island began to leave colonies around dawn, and most had left by mid-monrning. Foraging birds were distributed throughout Admiralty Bay, the average distance from the colony was c. 10 km, and were observed only rarely where the wa...
Article
Full-text available
Between 1992 and 2002, the 4 main colonies of the king shag (Leucocarbo carunculatus) in the outer Marlborough Sounds, New Zealand were surveyed 10 times. Additional information was gathered at 2 smaller colonies off D'Urville Island. The average total population was estimated to be 645 birds, with 92% at Duffers Reef, Trio Islands, Sentinel Rock,...
Article
Full-text available
Extensive intertidal sand flats (c.10000 ha, c. 100 km) on the sheltered southern side of Farewell Spit, a 30 km long sand spit located at the northern tip of South Island, New Zealand, extend for up to 8 km into Golden Bay. They consist primarily of fine sand with an upper size limit of 0.36 mm, blown from the spit during northerly storms. In part...
Article
Full-text available
The total population of L. carunculatus was counted for the first time during the 1992 breeding season. At 524 birds, numbers were almost twice as high as estimated previously. The daily rhythm, foraging range and feeding location were studied in 1991 and 1992. -from Author

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Projects (8)
Project
The foraging challenge for predators is to find and capture food with adequate levels of energy and nutrients. Understanding the nutrient requirements and foraging goals of animals is important to predict how animals will respond to environmental changes in prey availability. Our aim is to better understand the relationships between nutrition, behavior, ecology and physiology in a highly successful marine predator, the Australasian gannets.