Mark O’Brien

ORCID: 0000-0002-0415-1602
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About
Contact & Profiles
Research Areas
  • Wildlife Ecology and Conservation
  • Avian ecology and behavior
  • Ecology and Vegetation Dynamics Studies
  • Rangeland and Wildlife Management
  • Fire effects on ecosystems
  • Irish and British Studies
  • Species Distribution and Climate Change
  • Animal Ecology and Behavior Studies
  • Fish Ecology and Management Studies
  • Genetic and phenotypic traits in livestock
  • Plant and animal studies
  • Peatlands and Wetlands Ecology
  • Botany and Plant Ecology Studies
  • Pacific and Southeast Asian Studies
  • Wildlife Conservation and Criminology Analyses
  • Gender and Women's Rights
  • Marine animal studies overview
  • Economic and Environmental Valuation
  • Forest Management and Policy
  • Government, Law, and Information Management
  • Marine and coastal plant biology
  • Forest Ecology and Biodiversity Studies
  • Forest ecology and management
  • Agricultural Economics and Policy
  • Ecology and biodiversity studies

BirdLife International
2016-2020

University of the South Pacific
2011-2019

Royal Society for the Protection of Birds
1997-2018

Wildlife Conservation Society Fiji
2018

British Trust for Ornithology
1992

Summary Important Bird and Biodiversity Areas (IBAs) are sites identified as being globally important for the conservation of bird populations on basis an internationally agreed set criteria. We present first review development spread IBA concept since it was launched by BirdLife International (then ICBP) in 1979 examine some characteristics resulting inventory. Over 13,000 global regional IBAs have so far been documented terrestrial, freshwater marine ecosystems almost all world’s countries...

10.1017/s0959270918000102 article EN Bird Conservation International 2018-10-23

Summary Breeding birds, vegetation and moorland management were surveyed in 320 1‐km squares on 122 estates upland areas of eastern Scotland northern England where red grouse shooting is a widespread land use. We assessed whether population densities 11 species breeding birds differed between heather‐dominated managed for other with similar vegetation. classified that had full‐time equivalent gamekeeper as moors. The mean density shot per year was four times higher the gamekeepers three...

10.1046/j.1365-2664.2001.00597.x article EN Journal of Applied Ecology 2001-04-01

A randomly selected sample of sites surveyed in 1982 for the Breeding Waders Wet Meadows survey was re-visited 2989 and information on numbers breeding waders collected. This showed that over this period Lapwings Vanellus vanellus had declined significantly by 38%, whilst Oystercatchers Haematopus ostralegus increased 56%. There no evidence a change Snipe Gallinago gallinago, Redshank Tringa totanusor Curlew Numenius arquata. In both 1989 high proportion all inland occurred nature reserves....

10.1080/00063659209477115 article EN Bird Study 1992-11-01

Abstract Snipe Gallinago gallinago breeding on lowland wet grasslands in England have undergone widespread and dramatic declines abundance distribution since at least the 1970s. There are many potential drivers of decline but reductions habitat quality, driven by land management, often proposed as a contributing factor historical waders. Breeding snipe now restricted to few key places such nature reserves environmentally sensitive areas where management for waders is implemented. On average,...

10.1111/j.1469-1795.2008.00189.x article EN Animal Conservation 2008-07-08

Capsule Population response of breeding waders to agri-environment management varied between options and species; implementation has been on too small a scale reverse national population declines.

10.1080/00063657.2011.608117 article EN Bird Study 2011-08-19

Australia, New Zealand, Guinea, Wallacea, and the islands of Pacific Ocean collectively possess 42% world’s parrot species, including half all Critically Endangered species. We used comparative methods to review factors related extinction risk 167 extant 5 extinct species from this region, subsequently referred as ‘Oceania’. tested a range ecological socio-economic variables predictors for parrots in region while controlling phylogeny. Parrot were most likely be threatened if they had small...

10.1080/01584197.2017.1410066 article EN Emu - Austral Ornithology 2017-12-18

Abstract Capsule Singing male Corncrakes increased more than two-fold over the study period. Aim To provide updated counts of number and distribution singing in Britain describe implementation schemes which land management was modified to benefit Corncrakes. Methods Annual surveys core range were undertaken between 1993 2004 total population species throughout assessed 2003. information on extent location various conservation obtained from authorities that administer them. Results Following...

10.1080/00063650609461436 article EN Bird Study 2006-11-01

Habitat associations of farmland birds are well studied, yet few have considered relationships between species distribution and soil properties. Charadriiform waders (shorebirds) depend upon penetrable soils, rich in invertebrate prey. Many species, such as the Northern Lapwing Vanellus vanellus, undergone severe declines across Europe, despite being targeted by agri‐environment measures. This study assessed whether there were additive effects variables (depth, pH organic matter content)...

10.1111/ibi.12286 article EN Ibis 2015-07-14

Summary We studied the breeding biology of Tahiti Monarch Pomarea nigra , a ‘Critically Endangered’ forest bird endemic to (French Polynesia). Nest activity was monitored from 1998 2002, and again 2008 2015. During these 12 years, only 2–13 pairs per year produced hatchlings. Egg-laying occurred all year, but usually increased between August January, peaking around November. Of 200 nests monitored, 33 (16%) were abandoned shortly after construction, 71 had an egg laid immediately nest...

10.1017/s095927091700048x article EN Bird Conservation International 2017-12-04

Summary This paper documents the catastrophic decline of ‘Critically Endangered’ Fatu Hiva Monarch Pomarea whitneyi since 2000 and presents population dynamics conservation actions for species between 2008 2017. The programme has prevented extinction thus far. However, after an initial increase in size within management area 2012, recruitment subsequently declined. Improvements method trapping to control cats 2016 2017 coincided with encouraging results terms juvenile monarch survival rates,...

10.1017/s095927091900008x article EN Bird Conservation International 2019-03-18

Nocturnal surveys for collared petrel (Pterodroma brevipes) indicate significant variation in the number of birds reported by site, time year, and survey method. Collared petrels were recorded at 3 new islands within Fiji 2011. These records that locating requires focussed effort, although they do not definitively confirm breeding on islands, which ground-based searches would be required. When visiting sites where there has been no recent evidence breeding, should undertaken between February...

10.63172/883798ufiwpg article EN 2016-03-15
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