NDLI: Data from: Habitat segregation and ecological character displacement in cryptic African malaria mosquitoes (Dataset)

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Data from: Habitat segregation and ecological character displacement in cryptic African malaria mosquitoes (Dataset)

Content Provider	Dryad
Author	Tene Fossog, Billy Ayala, Diego Acevedo, Pelayo Kengne, Pierre Ngomo Abeso Mebuy, Ignacio Makanga, Boris Magnus, Julie Awono-Ambene, Parfait Njiokou, Flobert Pombi, Marco Antonio-Nkondjio, Christophe Paupy, Christophe Besansky, Nora J. Costantini, Carlo
Abstract	Understanding how divergent selection generates adaptive phenotypic and population diversification provides a mechanistic explanation of speciation in recently separated species pairs. Toward this goal, we sought ecological gradients of divergence between the cryptic malaria vectors Anopheles coluzzii and An. gambiae, and then looked for a physiological trait that may underlie such divergence. Using a large set of occurrence records and eco-geographical information, we built a distribution model to predict the predominance of the two species across their range of sympatry. Our model predicts two novel gradients along which the species segregate: distance from the coastline and altitude. Anopheles coluzzii showed a ‘bimodal’ distribution, predominating in xeric West African savannas and along the western coastal fringe of Africa. To test whether differences in salinity tolerance underlie this habitat segregation, we assessed the acute dose-mortality response to salinity of thirty-two larval populations from Central Africa. In agreement with its coastal predominance, Anophels coluzzii was overall more tolerant than An. gambiae. Salinity tolerance of both species, however, converged in urban localities, presumably reflecting an adaptive response to osmotic stress from anthropogenic pollutants. When comparing degree of tolerance in conjunction with levels of syntopy, we found evidence of character displacement in this trait.
File Size	175329
File Format	HTM / HTML
ISSN	17524571
DOI	10.5061/dryad.61m2s
Alternate Webpage(s)	https://datadryad.org/stash/downloads/file_stream/39386
Alternate Webpage(s)	https://datadryad.org/stash/downloads/file_stream/39388
Alternate Webpage(s)	https://datadryad.org/stash/downloads/file_stream/39390
Alternate Webpage(s)	https://datadryad.org/stash/downloads/file_stream/39387
Alternate Webpage(s)	https://datadryad.org/stash/downloads/file_stream/39389
Alternate Webpage(s)	https://datadryad.org/stash/downloads/file_stream/39391
Language	English
Publisher Date	2014-12-12
Access Restriction	Open
Subject Keyword	Urban Pollution Anopheles Coluzzii Parasitology Malaria Vector Natural Selection and Contemporary Evolution Species Interactions Molecular Forms Saltwater Tolerance Ecological Character Displacement Comparative Physiology Life History Evolution Anopheles Gambiae Population Ecology Holocene
Content Type	Text
Resource Type	Data Set
Subject	Genetics Ecology, Evolution, Behavior and Systematics Agricultural and Biological Sciences

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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