L. Campbell

ORCID: 0000-0002-8302-7430
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About
Contact & Profiles
Research Areas
  • Primate Behavior and Ecology
  • Wildlife Ecology and Conservation
  • Animal Vocal Communication and Behavior
  • Species Distribution and Climate Change
  • Animal Behavior and Reproduction
  • Neural Networks and Applications
  • Human-Animal Interaction Studies
  • Advanced Wireless Communication Techniques
  • Wireless Communication Networks Research
  • Bat Biology and Ecology Studies
  • Zoonotic diseases and public health
  • Fire effects on ecosystems
  • Animal Diversity and Health Studies
  • Sensor Technology and Measurement Systems
  • Genetic and phenotypic traits in livestock
  • Advanced Electrical Measurement Techniques
  • Ecology and biodiversity studies
  • Evolutionary Psychology and Human Behavior
  • Scientific Research and Discoveries
  • Ultrasonics and Acoustic Wave Propagation
  • Engineering and Test Systems
  • VLSI and Analog Circuit Testing
  • Animal Behavior and Welfare Studies
  • Forest Ecology and Conservation
  • Mathematical functions and polynomials

University of Oxford
2018-2025

Kaplan (United States)
2021

International Union for Conservation of Nature (United Kingdom)
2019

Google (United States)
2019

Moroccan Foundation for Advanced Science, Innovation and Research
2018

University of Lincoln
2016

Queen's University
1965-1977

Defence Research and Development Canada
1957

Individuals with more or stronger social bonds experience enhanced survival and reproduction in various species, though the mechanisms mediating these effects are unclear. Social thermoregulation is a common behaviour across many species which reduces cold stress exposure, body heat loss, homeostatic energy costs, allowing greater energetic investment growth, reproduction, survival, larger aggregations providing benefits. If individuals form due to having potential partners, this would...

10.1038/s41598-018-24373-4 article EN cc-by Scientific Reports 2018-04-11

The Canidae are successful, being a widespread, abundant, speciose, and adaptable family. Several canids in particular have recently experienced rapid expansions range abundance, with similar situations mirrored on several continents by different species. Despite extreme behavioural diversity between within species, monogamy is common denominator canid societies. In this review, we ask why monogamous how related to their success. We begin an overview of social monogamy, describing the pair...

10.3389/fevo.2019.00341 article EN cc-by Frontiers in Ecology and Evolution 2019-09-13
Delphine De Moor Macaela Skelton Federica Amici Małgorzata E. Arlet Krishna N. Balasubramaniam and 86 more Sébastien Ballesta Andreas Berghänel Carol M. Berman Sofia K. Blue Debottam Bhattacharjee Eliza Bliss‐Moreau Fany Brotcorne Marina Butovskaya L. Campbell Monica Carosi Mayukh Chatterjee Matthew A. Cooper Veronica B. Cowl Claudio de la O Arianna De Marco Amanda M. Dettmer Ashni Kumar Dhawale Joseph J. Erinjery Cara L. Evans Julia Fischer Iván García‐Nisa Gwennan Giraud Roy Hammer Malene F. Hansen Anna Holzner Stefano Kaburu Martina Konečná Honnavalli N. Kumara Marine Larrivaz Jean‐Baptiste Leca Mathieu Legrand Julia Lehmann Jin‐Hua Li Anne‐Sophie Lezé Andrew J. J. MacIntosh Bonaventura Majolo Laëtitia Maréchal Pascal Marty Jorg J. M. Massen Risma Illa Maulany Brenda McCowan Richard McFarland Pierre Merieau Hélène Meunier Jérôme Micheletta Partha Sarathi Mishra Sripati Sah Sandra Molesti Kristen S. Morrow Nadine Müller‐Klein Putu Oka Ngakan Elisabetta Palagi Odile Petit Lena S. Pflüger Eugenia Polizzi di Sorrentino Roopali Raghaven Gaël Raimbault Sunita Ram Ulrich H. Reichard Erin P. Riley Alan V. Rincon Nadine Ruppert Baptiste Sadoughi Kumar Santhosh Gabriele Schino Lori K. Sheeran Joan B. Silk Mewa Singh Anindya Sinha Sebastián Sosa Mathieu S. Stribos Cédric Sueur Barbara Tiddi Patrick Tkaczynski Florian Trébouet Anja Widdig Jamie Whitehouse Lauren J. Wooddell Dong‐Po Xia Lorenzo von Fersen Christopher Young Oliver Schülke Julia Ostner Christof Neumann Julie Duboscq Lauren J. N. Brent

There is a vast and ever-accumulating amount of behavioural data on individually recognised animals, an incredible resource to shed light the ecological evolutionary drivers variation in animal behaviour. Yet, full potential such lies comparative research across taxa with distinct life histories ecologies. Substantial challenges impede systematic comparisons, one which lack persistent, accessible standardised databases. Big-team approaches building databases offer solution facilitating...

10.1111/1365-2656.14223 article EN cc-by Journal of Animal Ecology 2025-02-11

The problem of designing and evaluating the performance a maximum likelihood sequence receiver for binary PSK transmission over bandlimited nonlinear channels is considered in this paper. effects intersymbol interference followed by AM/AM AM/PM conversions are taken into account while optimizing presence white Gaussian noise. A new representation output bandpass nonlinearity given when input consists carrier signal modulated sum overlapping pulses. structure channel derived using...

10.1109/tcom.1977.1093884 article EN IRE Transactions on Communications Systems 1977-07-01

Abstract Successful conservation depends on accurate taxonomy. Currently, the taxonomy of canids in Africa, Eurasia and Australasia is unstable as recent molecular morphological studies have questioned earlier phenetic classifications. We review available information several taxa Old World Australasian Canis with phylogenetic uncertainties (namely, African jackals, Asian wolves dogs), order to assess validity suggested scientific names provide a basis for reaching taxonomic consensus...

10.1111/jzo.12946 article EN Journal of Zoology 2021-12-16

A probability space of a special type is put into correspondence with measure space. Under this correspondence, sets in the correspond to partitions and set equals entropy corresponding partition.

10.1109/tit.1965.1053712 article EN IEEE Transactions on Information Theory 1965-01-01

Illegal live trade is one of the greatest threats to endangered Barbary macaques. Since focuses on young and macaques show extensive alloparental care, rehabilitation release into wild foster groups a promising strategy free space in sanctuaries allow continued confiscations, improve individual welfare, minimize captive care costs, reinforce populations. However, little documentation exists macaque releases age at which released would be accepted by unknown. Here, I report wild, nearly...

10.1007/s10329-019-00729-w article EN cc-by Primates 2019-06-03

Strategic microhabitat selection allows animals in seasonally cold environments to reduce homeostatic energy costs, particularly overnight when thermoregulatory demands are greatest. Suitable sleeping areas may therefore represent important resources for winter survival. Knowledge of use and potential impacts anthropogenic habitat modification can aid species conservation through development targeted management plans. Wild, endangered Barbary macaques (Macaca sylvanus) logged cedar-oak...

10.1098/rsos.181113 article EN cc-by Royal Society Open Science 2018-12-01

The spectrum of the output a half-wave rectifier is derived for an input which sum random noise and two sinusoidal signals different frequencies. method used characteristic function described by Rice. components are given as infinite series hypergeometric functions. If both .are small compared with noise, it shown that ratio signal power at difference frequency to proportional product signal-to-noise ratios one very large other translated in without alteration ratio. A correction factor...

10.1109/tit.1956.1056819 article EN IEEE Transactions on Information Theory 1956-12-01

Consider a system which consists of two receivers, each containing nonlinear device followed by zonal filter. A general method is developed for calculating the cross-correlation function outputs these receivers when inputs are related narrow-band Gaussian processes. In course development some new results obtained concerning pre-envelopes.

10.1109/tit.1965.1053783 article EN IEEE Transactions on Information Theory 1965-07-01

10.1109/tit.1964.1053670 article EN IEEE Transactions on Information Theory 1964-07-01

An expression for the error rate in a system using binary pulse position code is derived. In considered, pulses amplitude modulate carrier and resultant signal contaminated by additive Gaussian noise. At receiver are recovered an envelope detector. If synchronization errors post-detection filtering neglected, it shown that probability of approximated well <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1/2 \exp (-a^2/2)</tex> , where...

10.1109/tit.1957.1057388 article EN IEEE Transactions on Information Theory 1957-03-01

James B. Rudd has described a doublemixing circuit which transfers signal of unstable frequency to new determined by stable local oscillator. It is shown that the signal-to-noise ratio at output this related input in about same way as these ratios are square-law detector. The choice one parameters for arbitrary noise spectrum also discussed.

10.1109/tcom.1957.1097504 article EN IRE Transactions on Communications Systems 1957-09-01

10.1109/tit.1961.1057639 article EN IEEE Transactions on Information Theory 1961-07-01

The Bell system is planning to add a new circuit-switched digital capability (CSDC) the telephone network. This will provide for full duplex, circuit-switched, end-to-end synchronous 56 kbit/s connections. Using combination of existing and network elements, CSDC allow present-day call setup methods support data transmission in addition voice transmission. Critical elements are those associated with loops between customers' premises central offices. paper provides an overview loop maintenance...

10.1109/tcom.1982.1095708 article EN IRE Transactions on Communications Systems 1982-09-01
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