4 Works

Data from: Ecological and environmental predictors of escape among birds on a large tropical island

Kasun B. Ekanayake, Jonathan J. Gnanapragasam, Kithsiri Ranawana, Dulan R. Vidanapathirana, U. Tiran Abeyawardhana, Chandima Fernando, Alexandra McQueen, Michael A. Weston & Matthew R.E. Symonds
Ecological and environmental traits can influence avian escape behaviour but most data underpinning our current understanding relates to continental and temperate areas and species. We conducted a phylogenetically controlled comparative analysis of flight-initation distance (FID) against a variety of environmental, behavioural and life-history attributes for Sri Lankan birds (202 species; n = 2540). As with other studies, body mass was positively associated with FID, and longer FIDs occurred in areas where human population density was...

Niche dynamics of Memecylon in Sri Lanka: distribution patterns, climate change effects, and conservation priorities

Prabha Amarasinghe, Narayani Barve, Hashendra Kathriarachchi, Bette Loiselle & Nico Cellinese
Aim: Recent climate projections have shown that the distribution of organisms in island biotas is highly affected by climate change. Here, we present the results of the analysis of niche dynamics of a plant group, Memecylon on Sri Lanka, an island, using species occurrences and climate data. We aim to determine which climate variables explain current distribution, model how climate change impacts the availability of suitable habitat for Memecylon, and determine conservation priority areas for...

Population genomics of an emergent tri-species hybrid zone

Libby Natola, Sampath Seneviratne & Darren Irwin
Isolating barriers that drive speciation are commonly studied in the context of two-species hybrid zones. There is however evidence that more complex introgressive relationships are common in nature. Here, we use field observations and genomic analysis, including the sequencing and assembly of a novel reference genome, to study an emergent hybrid zone involving two colliding hybrid zones of three woodpecker species: red-breasted, red-naped, and yellow-bellied sapsuckers (Sphyrapicus ruber, S. nuchalis, and S. varius). Surveys of...

Data from: Evolution and biogeography of Memecylon

Prabha Amarasinghe, Sneha Joshi, Navendu Page, Lahiru S. Wijedasa, Mary Merello, Hashendra Kathriarachchi, Robert Douglas Stone, Walter Judd, Ullasa Kodandaramaiah & Nico Cellinese
Premise The woody plant group Memecylon (Melastomataceae) is a large clade occupying diverse forest habitats in the Old World tropics and exhibiting high regional endemism. Its phylogenetic relationships have been previously studied using ribosomal DNA with extensive sampling from Africa and Madagascar. However, divergence times, biogeography, and character evolution of Memecylon remain uninvestigated. We present a phylogenomic analysis of Memecylon to provide a broad evolutionary perspective of this clade. Methods One hundred supercontigs of 67...

Registration Year

  • 2022
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Resource Types

  • Dataset
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Affiliations

  • University of Colombo
    4
  • Florida Museum of Natural History
    2
  • University of Florida
    2
  • Indian Institute of Science Education and Research, Thiruvananthapuram
    1
  • National University of Singapore
    1
  • University of Peradeniya
    1
  • Deakin University
    1
  • BirdLife Australia
    1
  • University of British Columbia
    1
  • University of KwaZulu-Natal
    1