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List of works by Les G Underhill

A changing climate is eroding the geographical range of the Namib Desert tree Aloe through population declines and dispersal lags

scientific article (publication date: 26 July 2007)

A condition index for African penguinSpheniscus demersuschicks

scientific article published in 2014

A fuzzy decision support tool for wildlife translocations into communal conservancies in Namibia

A graphical method to determine the ordering of moult, illustrated with data from the Blackshouldered KiteElanus caeruleus

A knowledge-based approach to wildlife management

A measure to identify regression outliers

A review of the opportunities to support pollinator populations in South African cities

scientific article published on 11 March 2022

AN ANALYSIS OF THE MORTALITY AND SURVIVAL OF HARTLAUB'S GULL

Adaptability of a specialist predator: the effects of land use on diet diversification and breeding performance of Verreaux's eagles

African penguins as predators and prey – coping (or not) with change

scholarly article by R. J. M. Crawford et al published June 2001 in African Journal of Marine Science

Age-specific variation in relationship between moult and pre-migratory fuelling in Wood SandpipersTringa glareolain southern Africa

article

Albatross overlap with fisheries in the Benguela Upwelling System: implications for conservation and management

article by SL Petersen et al published 2008 in Endangered Species Research

An altered carrying capacity of the Benguela upwelling ecosystem for African penguins (Spheniscus demersus)

article

An assessment of the impact of predation by Cape fur seals Arctocephalus pusillus pusillus on seabirds at Dyer Island, South Africa

article

An index to compare geographical distributions of species

scientific article published in 2007

Apparent survival rates of Cape Sugarbirds Promerops cafer at a breeding and a non-breeding site

Artificial nests enhance the breeding productivity of African Penguins (Spheniscus demersus) on Robben Island, South Africa

article

Aspects of Breeding, Molt, Measurements and Population Trend of Hartlaub’s Gull in Western Cape, South Africa

Assessing the value of wetlands to waterbirds: exploring a population-based index at flyway and regional levels

BLOOD PARASITES IN BRIGHT BIRDS: TESTING THE HAMILTON-ZUK HYPOTHESIS IN SUB-SAHARAN AFRICA WITH AN IMPROVED STATISTICAL METHOD

article

Beyond bioclimatic envelopes: dynamic species' range and abundance modelling in the context of climatic change

scientific article published in 2010

Breeding and moult phenology of African penguinsSpheniscus demersusat Dassen Island

scientific article published in 2009

Breeding seasonality and primary moult parameters of Euplectes species in South Africa

article

Breeding success of African penguinsSpheniscus demersusat Dassen Island, especially after oiling following theApollo Seaspill

scientific article published in 2008

CHANGES IN THE AGE STRUCTURE OF CURLEW SANDPIPER POPULATIONS AT LANGEBAAN LAGOON, SOUTH AFRICA, IN RELATION TO LEMMING CYCLES IN SIBERIA

article

Chlorinated, brominated and fluorinated organic pollutants in African Penguin eggs: 30 years since the previous assessment

scientific article published on 19 January 2015

Climatic variation in Africa and Europe has combined effects on timing of spring migration in a long-distance migrant Willow Warbler Phylloscopus trochilus

scientific article published on 17 March 2020

Collapse of South Africa's penguins in the early 21st century

article

Comment on “Working with population totals in the presence of missing data comparing imputation methods in terms of bias and precision” by Onkelinx et al. (2016)

scientific article published on 4 May 2017

Comparison of moult phenology of African penguinsSpheniscus demersusat Robben and Dassen islands

scientific article published in 2009

Conditions on the Non-Breeding Areas Affect Primary Moult Strategy of the Curlew SandpiperCalidris ferruginea

Counts of Surface-nesting Seabirds Breeding at Prince Edward Island, Summer 2001/02

article

Covariance Biplot Analysis of Trace Element Concentrations in Urinary Stones ⬇️

scientific article published on June 1, 1988

Defining ecologically relevant scales for spatial protection with long-term data on an endangered seabird and local prey availability.

scientific article

Defining ecologically-relevant scales for spatial protection using long-term data on an endangered seabird and local prey availability

Defining ecologically-relevant scales for spatial protection using long-term data on an endangered seabird and local prey availability

Description of a new taxon brookei of Levaillant's Cisticola Cisticola tinniens from the Western Cape, South Africa

scientific article published in December 1999

Diet of Cape fur sealsArctocephalus pusillus pusillusat three mainland breeding colonies in Namibia. 2. Temporal variation

scientific article published in 2006

Diet of the African black oystercatcher Haematopus Moquini on rocky shores: spatial, temporal and sex-related variation

journal article; published in African Zoology in 1984

Differences in breeding success between African Penguins (Spheniscus demersus) that were and were not oiled in the MV Treasure oil-spill in 2000

article

Do Danish barn swallows potentially migrate to the Karoo, South Africa?

article

Do sugarbirds feed on arthropods inside or outside Protea inflorescences?

article published in 2005

Drivers of Bird Species Richness within Moist High-Altitude Grasslands in Eastern South Africa.

scientific article

Early warning systems for biodiversity in southern Africa – How much can citizen science mitigate imperfect data?

article

Effectiveness of the global protected area network in representing species diversity.

scientific article published in April 2004

Energetics of growth in semi-precocial shorebird chicks in a warm environment: the African black oystercatcher, Haematopus moquini

article

Energy Expenditure of Free-Ranging Chicks of the Cape Gannet Morus capensis

scientific article published on 16 April 2015

Environmental influences on the abundance and sexual composition of white sharks Carcharodon carcharias in Gansbaai, South Africa

scientific article

Extended Primary Moult as an Adaptation of Adult Wood Sandpipers Tringa glareolato Their Freshwater Habitats in Southern Africa

article

FORESTER, a Simulation Game for Teaching Survey Sampling

Factors influencing the breeding success of Cape Gannets Morus capensis at Malgas Island in 2002/2003

Factors related to breeding production of Brent GeeseBranta b. berniclaand waders (Charadrii) on the Taimyr Peninsula

article

First Breeding Records of Kelp GullsLarus Dominicanus Vetulaat Robben Island, Western Cape, South Africa

article

Flexibility and constraints in the molt schedule of long-distance migratory shorebirds: causes and consequences

scientific article published on 23 May 2013

Flocking as an anti-predator strategy in doves

article published in 1975

Foraging behaviour of bank cormorants in Namibia: implications for conservation

scientific article published in 2010

Geographic variation in reproduction and survival of kelp gulls Larus dominicanus vetula in southern Africa

article

Geographic variation in reproduction and survival of kelp gulls Larus dominicanus vetula in southern Africa

Geographic variation in the trophic ecology of an avian rocky shore predator, the African black oystercatcher, along the southern African coastline

scientific article published in 2011

Geographical Patterns in Primary Moult and Body Mass of GreenshankTringa nebulariain Southern Africa

article

Growth and decline of a penguin colony and the influence on nesting density and reproductive success

article

Growth and its relationship to fledging success of African black oystercatcher Haematopus moquini chicks.

scientific article published on 5 October 2008

Hand-rearing, release and survival of African penguin chicks abandoned before independence by moulting parents

scientific article

Handline catches and stock identity of snoekThyrsites atunoff South Africa and Namibia

article

Impact of flipper-banding on breeding success of African penguinsSpheniscus demersusat Robben Island: comparisons among silicone rubber bands, stainless-steel bands and no bands

scientific article published in 2008

Impact of predation by Cape fur sealsArctocephalus pusillus pusilluson Cape gannetsMorus capensisat Malgas Island, Western Cape, South Africa

article

Impact of theTreasureoil spill on African penguinsSpheniscus demersusat Dassen Island: case study of a rescue operation

scientific article published in 2008

Implications for seabirds off South Africa of a long-term change in the distribution of sardine

article

Infection prevalence and absence of positive correlation between avian haemosporidian parasites, mass and body condition in the Cape Weaver Ploceus capensis

Influence of Disturbance and Predation on Breeding Success of the African Black Oystercatcher, Haematopus moquini, on Robben Island, South Africa

article

Influence of local and regional prey availability on breeding performance of African penguins Spheniscus demersus

scientific article published in 2013

Influences of the abundance and distribution of prey on African penguinsSpheniscus demersusoff western South Africa

article

Interactions between snakes and seabirds on Robben, Schaapen and Meeuw Islands, Western Cape province, South Africa

article

Interpretation of a cross-cultural usability evaluation: A case study based on a hypermedia system for rare species management in Namibia

article

Large-Scale Climatic Patterns Have Stronger Carry-Over Effects than Local Temperatures on Spring Phenology of Long-Distance Passerine Migrants between Europe and Africa

scientific article published on 05 July 2022

Local forage fish abundance influences foraging effort and offspring condition in an endangered marine predator

scientific article published in 2019

Long-term survival of de-oiled Cape gannets Morus capensis after the Castillo de Bellver oil spill of 1983

article

Making sense of censuses and dealing with missing data: trends in pup counts of Cape fur sealArctocephalus pusillus pusillusfor the period 1972–2004

article

Management factors affecting densities of common grassland birds of high elevation grasslands of eastern South Africa: Ingula as a case study

article published in 2017

Management of avian choleraPasteurella multocidaoutbreaks on Dyer Island, South Africa, 2002–2005

article

Metapopulation Tracking Juvenile Penguins Reveals an Ecosystem-wide Ecological Trap

scientific article

Methods for estimating the proportions of Icelandic and British RedshanksTringa totanusin mixed populations wintering on British coasts

article

Multivariate analyses of breeding performance in Dark-bellied Brent Geese Branta b. bernicla

article

Novel methods reveal shifts in migration phenology of barn swallows in South Africa.

scientific article published on 9 November 2011

Oil-to-meal ratios of pelagic fish taken from the northern and the southern Benguela systems: seasonal patterns and temporal trends, 1951–1993

scientific article published in 1995

Oiled and injured African penguinsSpheniscus demersusand other seabirds admitted for rehabilitation in the Western Cape, South Africa, 2001 and 2002

article

Optimal and suboptimal reserve selection algorithms

article

Overlap in utilization of juvenile Cape horse mackerel by Cape fur seals and the purse-seine fishery in Namibia

article by Silvia Mecenero et al published April 2007 in South African Journal of Wildlife Research

POPULATION, BIOMETRICS AND MOVEMENTS OF THE SANDERLING CALIDRIS ALBA IN SOUTHERN AFRICA

article

Patterns of bird migration phenology in South Africa suggest northern hemisphere climate as the most consistent driver of change

scientific article

Pelagic shark bycatch in the tuna- and swordfish-directed longline fishery off southern Africa

article

Populations of Surface-nesting Seabirds at Marion Island, 1994/95–2002/03

scientific article published in 2003

Pre-fledging energy requirements of the nocturnally fed semi-precocial chicks of the Spotted Thick-knee (Burhinus capensis)

Prey capture success and chick diet of Damara ternsSterna balaenarumin Namibia

scientific article published in 2011

Primary moult of adult Red-billed Queleas (Quelea quelea) in southern Africa in relation to patterns of movement

Prioritising range-wide scientific monitoring of the Cape fur seal in southern Africa

article

Ranging Behaviour of Verreaux's Eagles during the Pre-Breeding Period Determined through the Use of High Temporal Resolution Tracking

scientific article

Rapid or slow moult? The choice of a primary moult strategy by immature Wood Sandpipers Tringa glareola in southern Africa

article

Relative masses of primary feathers

article

Research priorities for seabirds: improving conservation and management in the 21st century

article by R Lewison et al published 8 May 2012 in Endangered Species Research

Responses of fish populations in the Benguela ecosystem to environmental change

article

Restoration of oiled African penguinsSpheniscus demersusa decade after theApollo Seaspill

article

Return to Robben Island of African Penguins that were rehabilitated, relocated or reared in captivity following the Treasure oil spill of 2000

article

Review of the rescue, rehabilitation and restoration of oiled seabirds in South Africa, especially African penguinsSpheniscus demersusand Cape gannetsMorus capensis, 1983–2005

article

Richard Dean receives the Gill Memorial Medal

SHORT NOTES

SHORT NOTES

Scales and consequences of human land transformation on South African avian diversity and structure

scholarly article by D. H. K. Fairbanks et al published February 2002 in Animal Conservation

Seabird bycatch in the demersal longline fishery off southern Africa

article by S L Petersen et al published August 2009 in African Journal of Marine Science

Seabird bycatch in the pelagic longline fishery off southern Africa

article

Season of moult of African penguins at Robben Island, South Africa, and its variation, 1988–1998

article

Seasonal exploitation of seabirds by late holocene coastal foragers: Analysis of modern and archaeological data from the Western Cape, South Africa

article

Seasonal fluctuations in population size and habitat segregation of Kittlitz's Plover Charadrius pecuarius at Barberspan Bird Sanctuary, North West province, South Africa

article

Seasonality, distribution and taxonomic status of avian haemosporidian parasites within the Greater Cape Town area, South Africa

article

Secretarybird Sagittarius serpentarius population trends and ecology: insights from South African citizen science data.

scientific article

Sexual dimorphism in adult Little Stints () revealed by DNA sexing and discriminant analysis

scientific article published in 2018

Sexual maturation in squid: quantum or continuum?

article by M. R. Lipiński & Les G Underhill published June 1995 in African Journal of Marine Science

Southern Hemisphere biodiversity and global change: Data gaps and strategies

scientific article published in 2016

Spatio-temporal shifts of the dynamic Cape fur seal population in southern Africa, based on aerial censuses (1972-2009)

article

Storms and heat limit the nest success of Bank Cormorants: implications of future climate change for a surface-nesting seabird in southern Africa

article

Surviving off junk: low-energy prey dominates the diet of African penguinsSpheniscus demersusat Mercury Island, Namibia, between 1996 and 2009

scientific article published in 2010

THE BIANNUAL PRIMARY MOULT OF ADULT WILLOW WARBLERS PHYLLOSCOPUS TROCHILUS IN EUROPE and AFRICA: AN APPLICATION OF A NEW TECHNIQUE

article published in 1989

THE EFFECTS OF BROOD SIZE ON GROWTH OF SOUTH AFRICAN CLIFF SWALLOW HIRUNDO SPILODERA CHICKS

scholarly article by R. A. Earlé & Les G Underhill published June 1991 in Ostrich

THE MIGRATION SYSTEM OF THE CURLEW SANDPIPER CALIDRIS FERRUGINEA IN AFRICA

article

THE ROLE OF LARGE-SCALE DATA COLLECTION PROJECTS IN THE STUDY OF SOUTHERN AFRICAN BIRDS

The Colonization of the Krakatau Islands by Fig Wasps and Other Chalcids (Hymenoptera, Chalcidoidea)

scholarly article by S. G. Compton et al published 19 December 1988 in Philosophical Transactions of the Royal Society B

The Primary Moult of Curlew SandpipersCalidris ferrugineain North-Western Australia Shifts According to Breeding Success

article

The SABAP2 legacy: A review of the history and use of data generated by a long-running citizen science project

scientific article published in 2022

The breeding productivity of dark-bellied brent geese and curlew sandpipers in relation to changes in the numbers of arctic foxes and lemmings on the Taimyr Peninsula, Siberia -

article

The dispersion of Arctic breeding birds according to snow-free patch dimensions during the spring thaw in the north-eastern Taimyr Peninsula, Russia

article

The dispersion of arctic breeding birds according to snow-free patch dimensions during the spring thaw in the north-eastern Taimyr Peninsula, Russia

article

The dispersion of red knotsCalidris canutusin Africa—is southern Africa a buffer for West Africa?

article

The effect of flipper banding on the breeding success of African Penguins Spheniscus demersus at Boulders Beach, South Africa

article

The efficacy of culling seals seen preying on seabirds as a means of reducing seabird mortality

article published in 2009

The efficacy of hand-rearing penguin chicks: evidence from African Penguins (Spheniscus demersus) orphaned in the Treasure oil spill in 2000

article

The importance of lipid-rich fish prey for Cape gannet chick growth: are fishery discards an alternative?

article by R. H. E. Mullers et al published 13 August 2009 in I C E S Journal of Marine Science

The influence of agricultural transformation on the breeding performance of a top predator: Verreaux's Eagles in contrasting land use areas

scientific article published in 2016

The influence of food availability on breeding success of African penguins Spheniscus demersus at Robben Island, South Africa

article

The rehabilitation of Swift Terns Sterna bergii incapacitated by marine foam on Robben Island, South Africa

article

Three-year cycles in breeding productivity of KnotsCalidris canutuswintering in southern Africa suggest Taimyr Peninsula provenance

article

Timing and duration of moult in three populations of Purple Sandpipers Calidris maritima with different moult/migration patterns

scientific article published in 2004

Top predators in the Benguela ecosystem — implications of their trophic position

scientific article published in 1992

Trends in numbers of Kelp Gulls Larus dominicanus off western South Africa, 1978–2007

article

Turtle bycatch in the pelagic longline fishery off southern Africa

article

Understanding the Motivations and Satisfactions of Volunteers to Improve the Effectiveness of Citizen Science Programs

Urban intensity and flower community structure drive monkey beetle assemblage in Cape Town

scientific article published in 2023

WADERS (CHARADRII) AND OTHER SHOREBIRDS AT CAPE RECIFE, ALGOA BAY, SOUTH AFRICA: SEASONALITY, TRENDS, CONSERVATION, AND RELIABILITY OF SURVEYS

article

WADERS (CHARADRII) AND OTHER WATERBIRDS AT LANGEBAAN LAGOON, SOUTH AFRICA, 1975–1986

article

Waterbirds at the Theewaterskloof Dam, Western Cape, South Africa, 1993–2005

article

Where eagles soar: Fine-resolution tracking reveals the spatiotemporal use of differential soaring modes in a large raptor

scientific article published on 11 June 2018

moult: AnRPackage to Analyze Moult in Birds

article published in 2013

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