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Climatic niche divergence or conservatism? Environmental niches and range limits in ecologically similar damselflies

Wellenreuther, Maren LU ; Larson, Keith LU and Svensson, Erik LU (2012) In Ecology 93(6). p.1353-1366
Abstract
The factors that determine species' range limits are of central interest to biologists. One particularly interesting group comprises odonates (dragonflies and damselflies), which show large differences in secondary sexual traits and respond quickly to climatic factors, but often have minor interspecific niche differences, challenging models of niche-based species coexistence. We quantified the environmental niches at two geographic scales to understand the ecological causes of northern range limits and the coexistence of two congeneric damselflies (Calopteryx splendens and C. virgo). Using environmental niche modeling, we quantified niche divergence first across the whole geographic range in Fennoscandia, and second only in the sympatric... (More)
The factors that determine species' range limits are of central interest to biologists. One particularly interesting group comprises odonates (dragonflies and damselflies), which show large differences in secondary sexual traits and respond quickly to climatic factors, but often have minor interspecific niche differences, challenging models of niche-based species coexistence. We quantified the environmental niches at two geographic scales to understand the ecological causes of northern range limits and the coexistence of two congeneric damselflies (Calopteryx splendens and C. virgo). Using environmental niche modeling, we quantified niche divergence first across the whole geographic range in Fennoscandia, and second only in the sympatric part of this range. We found evidence for interspecific divergence along the environmental axes of temperature and precipitation across the northern range in Fennoscandia, suggesting that adaptation to colder and wetter climate might have allowed C. virgo to expand farther north than C. splendens. However, in the sympatric zone in southern Fennoscandia we found only negligible and nonsignificant niche differences. Minor niche differences in sympatry lead to frequent encounters and intense interspecific sexual interactions at the local scale of populations. Nevertheless, niche differences across Fennoscandia suggest that species differences in physiological tolerances limit range expansions northward, and that current and future climate could have large effects on the distributional ranges of these and ecologically similar insects. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
biogeography, Calopteryx splendens, Calopteryx virgo, climate, ecological speciation, ectotherms, niche divergence, nonecological, speciation, sexual selection, thermal adaptation
in
Ecology
volume
93
issue
6
pages
1353 - 1366
publisher
Ecological Society of America
external identifiers
  • wos:000305296600013
  • scopus:84862297478
ISSN
0012-9658
DOI
10.1890/11-1181.1
project
BECC
language
English
LU publication?
yes
id
2cb5ae0a-4899-4637-89d0-51371c8c7f9d (old id 2892272)
date added to LUP
2012-07-26 10:32:07
date last changed
2017-11-12 03:39:22
@article{2cb5ae0a-4899-4637-89d0-51371c8c7f9d,
  abstract     = {The factors that determine species' range limits are of central interest to biologists. One particularly interesting group comprises odonates (dragonflies and damselflies), which show large differences in secondary sexual traits and respond quickly to climatic factors, but often have minor interspecific niche differences, challenging models of niche-based species coexistence. We quantified the environmental niches at two geographic scales to understand the ecological causes of northern range limits and the coexistence of two congeneric damselflies (Calopteryx splendens and C. virgo). Using environmental niche modeling, we quantified niche divergence first across the whole geographic range in Fennoscandia, and second only in the sympatric part of this range. We found evidence for interspecific divergence along the environmental axes of temperature and precipitation across the northern range in Fennoscandia, suggesting that adaptation to colder and wetter climate might have allowed C. virgo to expand farther north than C. splendens. However, in the sympatric zone in southern Fennoscandia we found only negligible and nonsignificant niche differences. Minor niche differences in sympatry lead to frequent encounters and intense interspecific sexual interactions at the local scale of populations. Nevertheless, niche differences across Fennoscandia suggest that species differences in physiological tolerances limit range expansions northward, and that current and future climate could have large effects on the distributional ranges of these and ecologically similar insects.},
  author       = {Wellenreuther, Maren and Larson, Keith and Svensson, Erik},
  issn         = {0012-9658},
  keyword      = {biogeography,Calopteryx splendens,Calopteryx virgo,climate,ecological speciation,ectotherms,niche divergence,nonecological,speciation,sexual selection,thermal adaptation},
  language     = {eng},
  number       = {6},
  pages        = {1353--1366},
  publisher    = {Ecological Society of America},
  series       = {Ecology},
  title        = {Climatic niche divergence or conservatism? Environmental niches and range limits in ecologically similar damselflies},
  url          = {http://dx.doi.org/10.1890/11-1181.1},
  volume       = {93},
  year         = {2012},
}