Chris J. Hassell
University of Groningen
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Publications 37
#1Bingrun Zhu (BNU: Beijing Normal University)H-Index: 1
#1Bing-Run Zhu (BNU: Beijing Normal University)
Last. Theunis Piersma (UG: University of Groningen)H-Index: 75
view all 7 authors...
ABSTRACTCapsule: Black-tailed Godwits Limosa limosa show sexual size dimorphism and size differences between the subspecies. The shape varies slightly between the subspecies, but not between the se...
#1Ying-Chi Chan (UG: University of Groningen)H-Index: 5
#2T. Lee Tibbitts (USGS: United States Geological Survey)H-Index: 11
Last. Theunis Piersma (UG: University of Groningen)H-Index: 75
view all 8 authors...
1. Satellite‐based technologies that track individual animal movements enable the mapping of their spatial and temporal patterns of occurrence. This is particularly useful in poorly studied or remote regions where there is a need for the rapid gathering of relevant ecological knowledge to inform management actions. One such region is East Asia, where many intertidal habitats are being degraded at unprecedented rates and shorebird populations relying on these habitats show rapid declines.2. We ex...
1 CitationsSource
#1Tamar Lok (University of Montpellier)H-Index: 1
#2Chris J. HassellH-Index: 13
Last. Olivier Gimenez (University of Montpellier)H-Index: 41
view all 5 authors...
To successfully perform their long‐distance migrations, migratory birds require sites along their migratory routes to rest and refuel. Monitoring the use of so‐called stopover and staging sites provides insights into (a) the timing of migration and (b) the importance of a site for migratory bird populations. A recently developed Bayesian superpopulation model that integrates mark–recapture data and ring density data enabled the estimation of stopover timing, duration, and population size. Yet, t...
#1Nicholas J. Murray (UNSW: University of New South Wales)H-Index: 15
#2Peter P. Marra (SCBI: Smithsonian Conservation Biology Institute)H-Index: 56
Last. Colin E. Studds (UMBC: University of Maryland, Baltimore County)H-Index: 17
view all 14 authors...
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 change is vital for conserving migratory species, yet the challenge of collecting data over entire geographic ranges has hindered attempts to identify the processes leading to observed population changes. Here, we use remotely sensed environmental data and bird count data to investigate the factors dri...
3 CitationsSource
#1Meijuan Zhao (Deakin University)H-Index: 5
#2Maureen ChristieH-Index: 6
Last. Marcel Klaassen (Deakin University)H-Index: 45
view all 8 authors...
Migration is a common phenomenon across many animal taxa. Understanding how migration scales with body size across species is fundamental in the development of migration theory and in making size-related predictions. Although aerodynamic theory and ecophysiological scaling laws have assisted greatly in generating such predictions, their verifications have been limited by a lack of empirical data across a range of body sizes. The recent development of ultra-light tracking devices and its rapid ap...
2 CitationsSource
#1Meijuan Zhao (Deakin University)H-Index: 5
#2Maureen ChristieH-Index: 6
Last. Marcel Klaassen (Deakin University)H-Index: 45
view all 8 authors...
Migrants have been hypothesised to use different migration strategies between seasons: a time-minimization strategy during their pre-breeding migration towards the breeding grounds and an energy-minimization strategy during their post-breeding migration towards the wintering grounds. Besides season, we propose body size as a key factor in shaping migratory behaviour. Specifically, given that body size is expected to correlate negatively with maximum migration speed and that large birds tend to u...
8 CitationsSource
#1Clive MintonH-Index: 17
#2Chris J. HassellH-Index: 13
view all 4 authors...
#2Theunis PiersmaH-Index: 75
Last. Chris J. HassellH-Index: 13
view all 3 authors...
This is a story about the ten thousand kilometer journey of a Bar-tailed Godwit, travelling between the tropics and the Arctic, between pristine and industrial environments, and between different nations and cultures.
#1Theunis PiersmaH-Index: 75
#2Ying-Chi ChanH-Index: 5
Last. David S. Wilcove (Princeton University)H-Index: 47
view all 9 authors...
Prompted by the realization that parts of the coast of southern Jiangsu Province, China, are under threat of reclamation, we here summarize evidence that loss of intertidal habitats around the Yellow Sea and at other parts along the Chinese and Korean coasts has already led to severe population declines of migratory shorebirds, including multiple endangered species. All the evidence currently at hand suggest that the plans to reclaim (develop) additional intertidal habitat in this region poses a...
9 CitationsSource
#1Colin E. Studds (UMBC: University of Maryland, Baltimore County)H-Index: 17
#2Bruce E. Kendall (UCSB: University of California, Santa Barbara)H-Index: 37
Last. Richard A. Fuller (UQ: University of Queensland)H-Index: 50
view all 17 authors...
Migratory animals are threatened by human-induced global change. However, little is known about how stopover habitat, essential for refuelling during migration, affects the population dynamics of migratory species. Using 20 years of continent-wide citizen science data, we assess population trends of ten shorebird taxa that refuel on Yellow Sea tidal mudflats, a threatened ecosystem that has shrunk by >65% in recent decades. Seven of the taxa declined at rates of up to 8% per year. Taxa with the ...
60 CitationsSource