16 Works

Data from: Effects of maternal genotypic identity and genetic diversity of the red mangrove Rhizophora mangle on associated soil bacterial communities: a field-based experiment

Hayley Craig, John Paul Kennedy, Donna J. Devlin, Richard D. Bardgett & Jennifer K. Rowntree
Loss of plant biodiversity can result in reduced abundance and diversity of associated species with implications for ecosystem functioning. In ecosystems low in plant species diversity, such as Neotropical mangrove forests, it is thought that genetic diversity within the dominant plant species could play an important role in shaping associated communities. Here, we used a manipulative field experiment to study the effects of maternal genotypic identity and genetic diversity of the red mangrove Rhizophora mangle...

Data from: Chemical signals from eggs facilitate cryptic female choice in humans

John Fitzpatrick, Charlotte Willis, Alessandro Devigili, Amy Young, Michael Carroll, Helen Hunter & Daniel Brison
Mate choice can continue after mating via chemical communication between the female reproductive system and sperm. While there is a growing appreciation that females can bias sperm use and paternity by exerting cryptic female choice for preferred males, we know surprisingly little about the mechanisms underlying these post-mating choices. In particular, whether chemical signals released from eggs (chemoattractants) allow females to exert cryptic female choice to favour sperm from specific males remains an open question,...

Is the central-marginal hypothesis a general rule? Evidence from three distributions of an expanding mangrove species, Avicennia germinans (L.) L.

John Paul Kennedy, Richard Preziosi, Jennifer Rowntree & Ilka Feller
The central-marginal hypothesis (CMH) posits that range margins exhibit less genetic diversity and greater inter-population genetic differentiation compared to range cores. CMH predictions are based on long-held ‘abundant-centre’ assumptions of a decline in ecological conditions and abundances towards range margins. Although much empirical research has confirmed CMH, exceptions remain almost as common. We contend that mangroves provide a model system to test CMH that alleviates common confounding factors and may help clarify this lack of...

Pollution control can help mitigate future climate change impacts on European grayling in the UK

J. Vanessa Huml, W. Edwin Harris, Martin I. Taylor, Robin Sen, Christel Prudhomme & Jonathan S. Ellis
Aim We compare the performance of habitat suitability models using climate data only or climate data together with water chemistry, land cover and predation pressure data to model the distribution of European grayling (Thymallus thymallus). From these models, we (1) investigate the relationship between habitat suitability and genetic diversity; (2) project the distribution of grayling under future climate change and (3) model the effects of habitat mitigation on future distributions. Location United Kingdom Methods Maxent...

Data and R-code from 'Mode of death and mortality risk factors in Amazon trees'. Nature communications. 2020

Adriane Esquivel Muelbert, Oliver L. Phillips, Roel J. W. Brienen, Sophie Fauset, Martin J. P. Sullivan, Timothy R. Baker, Kuo-Jung Chao, Ted R. Feldpausch, Emanuel Gloor, Niro Higuchi, Jeanne Houwing-Duistermaat, Jon Lloyd, Haiyan Liu, Yadvinder Malhi, Beatriz Marimon, Ben Hur Marimon Junior, Abel Monteagudo-Mendoza, Lourens Poorter, Marcos Silveira, Emilio Vilanova Torre, Esteban Alvarez Dávila, Jhon del Aguila Pasquel, Everton Almeida, Patricia Alvarez Loayza & Ana Andrade

Environmental drivers of Sphagnum growth in peatlands across the Holarctic region

Fia Bengtsson, Håkan Rydin, Jennifer Baltzer, Luca Bragazza, Zhao-Jun Bu, Simon Caporn, Ellen Dorrepaal, Kjell Ivar Flatberg, Olga Galanina, Mariusz Gałka, Anna Ganeva, Irina Goia, Nadezhda Goncharova, Michal Hajek, Akira Haraguchi, Lorna Harris, Elyn Humphreys, Martin Jiroušek, Katarzyna Kajukało, Edgar Karofeld, Natalia Koronatova, Natalia Kosykh, Anna Laine, Mariusz Lamentowicz, Elena Lapshina … & Richard J. Payne
The relative importance of global versus local environmental factors for growth and thus carbon uptake of the bryophyte genus Sphagnum – the main peat-former and ecosystem engineer in northern peatlands – remains unclear. 2) We measured length growth and net primary production (NPP) of two abundant Sphagnum species across 99 Holarctic peatlands. We tested the importance of previously proposed abiotic and biotic drivers for peatland carbon uptake (climate, N deposition, water table depth, and vascular...

Data from: Are fission-fusion dynamics consistent among populations? A large-scale study with Cape buffalo

Elodie Wielgus, Daniel Cornélis, Michel De Garine-Wichatitsky, Bradley Cain, Hervé Fritz, Eve Miguel, Hugo Valls-Fox, Alexandre Caron & Simon Chamaillé-Jammes
Fission-fusion dynamics allow animals to manage costs and benefits of group living by adjusting group size. The degree of intraspecific variation in fission-fusion dynamics across the geographical range is poorly known. During 2008-2016, 38 adult female Cape buffalo were equipped with GPS collars in three populations located in different protected areas (Gonarezhou National Park and Hwange National Park, Zimbabwe; Kruger National Park, South Africa) to investigate the patterns and environmental drivers of fission-fusion dynamics among...

Data from: Investigating cat predation as the cause of bat wing tears using forensic DNA analysis

Kirsty Shaw, Rana Khayat, Robyn Grant, Hazel Ryan, Gary Dougill & David Killick
Cat predation upon bat species has been reported to have significant effects on bat populations in both rural and urban areas. The majority of research in this area has focussed on observational data from bat rehabilitators documenting injuries, and cat owners, when domestic cats present prey. However, this has the potential to underestimate the number of bats killed or injured by cats. Here, we use forensic DNA analysis techniques to analyse swabs taken from injured...

Burrow ambient temperature influences Helice crab activity and availability for migratory Red-crowned Cranes Grus japonensis

Donglai Li, Jing Zhang, Lingyu Chen, Huw Lloyd & Zhengwang Zhang
For migratory birds that specialize on particular benthic macroinvertebrate species, the timing of migration is critical since prey availability may be temporally limited and a function of local ambient temperature. Hence, variation in local ambient temperature can influence the diet composition of migrant birds, and consequently they may be constrained by which stopover and wintering sites they are able to utilize during periods of colder temperatures. Here we use faecal analysis, observer-based population counts, digital...

Data from: Hurricanes overcome migration lag and shape intraspecific genetic variation beyond a poleward mangrove range limit

John Paul Kennedy, Emily M. Dangremond, Matthew A. Hayes, Richard F. Preziosi, Jennifer K. Rowntree & Ilka C. Feller
Expansion of many tree species lags behind climate-change projections. Extreme storms can rapidly overcome this lag, especially for coastal species, but how will storm-driven expansion shape intraspecific genetic variation? Do storms provide recruits only from the nearest sources, or from more distant sources? Answers to these questions have ecological and evolutionary implications, but empirical evidence is absent from the literature. Hurricane Irma provided an opportunity to address this knowledge gap at the northern range limit...

Experimental predator intrusions in a cooperative breeder reveal threat-dependent task partitioning

Dario Josi, Annika Freudiger, Michael Taborsky & Joachim G. Frommen
In cooperatively breeding species, non-breeding individuals provide alloparental care and help in territory maintenance and defence. Antipredator behaviours of subordinates can enhance offspring survival, which may provide direct and indirect fitness benefits to all group members. Helping abilities and involved costs and benefits, risks and outside options (e.g. breeding independently) usually diverge between group members, which calls for status-specific differentiated behavioural responses. Such role differentiation within groups may generate task-specific division of labour, as exemplified...

Data from: Characterising bird-keeping user-groups on Java reveals distinct behaviours, profiles and potential for change

Harry Marshall, Nigel Collar, Alexander Lees, Andrew Moss, Pramana Yuda & Stuart Marsden
1. Over 70 million cage-birds are kept across 12 million households on the island of Java, Indonesia, fuelling serious concerns for the health of regional wild bird populations. Understanding the behaviours, preferences and demographic profiles of bird-keepers will guide attempts to reduce demand for wild birds and hence the impact of trade on wild populations and their host ecosystems. 2. We profile three songbird-keeping user-groups based on interviews of nearly one thousand people across Java:...

Ultrasound-derived changes in thickness of human ankle plantar flexor muscles during walking and running are not homogeneous along the muscle mid-belly region

Emma Hodson-Tole & Adrian Lai
Skeletal muscle thickness is a valuable indicator of several aspects of a muscle’s functional capabilities. We used computational analysis of ultrasound images, recorded from 10 humans walking and running at a range of speeds (0.7 – 5.0 m s-1), to quantify interactions in thickness change between three ankle plantar flexor muscles (soleus, medial and lateral gastrocnemius) and quantify thickness changes at multiple muscle sites within each image. Statistical analysis of thickness change as a function...

A large-scale assessment of plant dispersal mode and seed traits across human-modified Amazonian forests

Joseph Hawes, Ima Vieira, Luiz Magnago, Erika Berenguer, Joice Ferreira, Luiz Aragão, Amanda Cardoso, Alexander Lees, Gareth Lennox, Joseph Tobias, Anthony Waldron & Jos Barlow
1. Quantifying the impact of habitat disturbance on ecosystem function is critical for understanding and predicting the future of tropical forests. Many studies have examined post-disturbance changes in animal traits related to mutualistic interactions with plants, but the effect of disturbance on plant traits in diverse forests has received much less attention. 2. Focusing on two study regions in the eastern Brazilian Amazon, we used a trait-based approach to examine how seed dispersal functionality within...

Acoustic indices perform better when applied at ecologically meaningful time and frequency scales

Oliver Metcalf, Jos Barlow, Christian Devenish, Stuart Marsden, Erika Berenguer & Alexander Lees
Abstract: 1. Acoustic indices are increasingly employed in the analysis of soundscapes to ascertain biodiversity value. However, conflicting results and lack of consensus on best practices for their usage has hindered their application in conservation and land-use management contexts. Here we propose that the sensitivity of acoustic indices to ecological change and fidelity of acoustic indices to ecological communities are severely impacted by signal masking. Signal masking can occur when acoustic responses sensitive to the...

Protected by dragons: density surface modeling confirms large population of the critically endangered Yellow-crested Cockatoo on Komodo island

Anna Reuleaux, Benny A. Siregar, Nigel J. Collar, Maria R. Panggur, Ani Mardiastuti, Martin J. Jones & Stuart J. Marsden
Intense trapping of the critically endangered Yellow-crested Cockatoo Cacatua sulphurea for the International pet trade has devastated its populations across Indonesia such that populations >100 individuals remain at only a handful of sites. We combined distance sampling with density surface modeling (DSM) to predict local densities and estimate total population size for one of these areas, Komodo Island, part of Komodo National Park (KNP) in Indonesia. We modeled local density based on topography (topographic wetness...

Registration Year

  • 2020
    16

Resource Types

  • Dataset
    16

Affiliations

  • Manchester Metropolitan University
    16
  • Plymouth University
    2
  • BirdLife International
    2
  • University of Manchester
    2
  • Smithsonian Environmental Research Center
    2
  • Lancaster University
    2
  • Anglia Ruskin University
    1
  • Universidade da Amazônia
    1
  • Federal University of Southern Bahia
    1
  • University of Eastern Finland
    1