Climatic niche breadth and species richness in temperate treefrogs

2014 ◽  
Vol 41 (10) ◽  
pp. 1936-1946 ◽  
Author(s):  
Zachary A. Chejanovski ◽  
John J. Wiens
Keyword(s):  
Species Richness ◽  
Niche Breadth ◽  
Climatic Niche

scholarly journals Latitudinal gradients in biotic niche breadth vary across ecosystem types

2015 ◽  
Vol 282 (1819) ◽  
pp. 20151589 ◽  
Author(s):  
Alyssa R. Cirtwill ◽  
Daniel B. Stouffer ◽  
Tamara N. Romanuk
Keyword(s):  
Species Richness ◽  
Food Webs ◽  
Niche Breadth ◽  
The Other ◽  
Latitudinal Gradients ◽  
Food Web Structure ◽  
Scaling Relationships ◽  
Web Structure ◽  
Scaling Relationship ◽  
The Tropics

Several properties of food webs—the networks of feeding links between species—are known to vary systematically with the species richness of the underlying community. Under the ‘latitude–niche breadth hypothesis’, which predicts that species in the tropics will tend to evolve narrower niches, one might expect that these scaling relationships could also be affected by latitude. To test this hypothesis, we analysed the scaling relationships between species richness and average generality, vulnerability and links per species across a set of 196 empirical food webs. In estuarine, marine and terrestrial food webs there was no effect of latitude on any scaling relationship, suggesting constant niche breadth in these habitats. In freshwater communities, on the other hand, there were strong effects of latitude on scaling relationships, supporting the latitude–niche breadth hypothesis. These contrasting findings indicate that it may be more important to account for habitat than latitude when exploring gradients in food-web structure.

scholarly journals Colour polymorphism influences species' range and extinction risk

2019 ◽  
Vol 15 (7) ◽  
pp. 20190228 ◽  
Author(s):  
Yuma Takahashi ◽  
Suzuki Noriyuki
Keyword(s):  
Growth Rate ◽  
Geographical Distribution ◽  
Range Expansion ◽  
Niche Breadth ◽  
Extinction Risk ◽  
Colour Polymorphism ◽  
Comparative Approach ◽  
Climatic Niche ◽  
Polymorphic Species ◽  
The Stability

Polymorphisms in a population are expected to increase the growth rate and the stability of the population, leading to the expansion of geographical distribution and mitigation of extinction risk of a species. However, the generality of such ecological consequences of colour polymorphism remains uncertain. Here, via a comparative approach, we assessed whether colour polymorphisms influence climatic niche breadth and extinction risk in some groups of damselflies, butterflies and vertebrates. The climatic niche breadth was greater, and extinction risk was lower in polymorphic species than in monomorphic species in all taxa analysed. The results suggest that colour polymorphism facilitates range expansion and species persistence.

Geographic patterns of predator niche breadth and prey species richness

2015 ◽  
Vol 31 (1) ◽  
pp. 111-115 ◽  
Author(s):  
Giuliano Milana ◽  
Manuela Lai ◽  
Luigi Maiorano ◽  
Luca Luiselli ◽  
Giovanni Amori
Keyword(s):  
Species Richness ◽  
Prey Species ◽  
Niche Breadth ◽  
Geographic Patterns

scholarly journals A classification system for predicting invasiveness using climatic niche traits and global distribution models: application to alien plant species in Chile

NeoBiota ◽  
2020 ◽  
Vol 63 ◽  
pp. 127-146
Author(s):  
Ramiro O. Bustamante ◽  
Lúa Alves ◽  
Estefany Goncalves ◽  
Milen Duarte ◽  
Ileana Herrera
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
Potential Distribution ◽  
Niche Breadth ◽  
Large Set ◽  
Alien Plant Species ◽  
Climatic Niche ◽  
Alien Plant ◽  
Thermal Niche ◽  
Plant Invasiveness

Functional traits that predict plant invasiveness are a central issue in invasion ecology. However, in many cases they are difficult to determine, especially for a large set of species. Climatic niche traits can overcome this problem due to the ease of acquiring them for a large number of species. This effort is critical given that knowledge of species invasiveness is necessary (although not sufficient) to anticipate/manage invasive species. In this study, we examined thermal and hydric niche traits to predict plant invasiveness. We used a set of 49 alien plant species, representative of the alien flora of Chile. Niche traits were obtained using environmental information (WorldClim) and global occurrences. Invasiveness was estimated using global niche models and projection of the potential distribution in Chile. As a final step, we reviewed the literature for a subset of species, documenting their impacts on a) biodiversity, b) crop agriculture and c) livestock. Thermal niche breadth and thermal niche position were the most important niche traits to predict potential distribution (a proxy of invasiveness). Using thermal niche breadth and niche position traits, we constructed a graphical model that classifies alien species as highly invasive (wide thermal niche breadth and low niche position) or low potential to be invasive (narrow niche breadth and high niche position). We also found no association between our invasiveness classification and the documented impact of alien species.

HOW IS THE RATE OF CLIMATIC-NICHE EVOLUTION RELATED TO CLIMATIC-NICHE BREADTH?

Evolution ◽  
2012 ◽  
Vol 66 (12) ◽  
pp. 3836-3851 ◽  
Author(s):  
M. Caitlin Fisher-Reid ◽  
Kenneth H. Kozak ◽  
John J. Wiens
Keyword(s):  
Niche Breadth ◽  
Niche Evolution ◽  
Climatic Niche

scholarly journals Selfing species exhibit diminished niche breadth over time

2017 ◽  
Author(s):  
Daniel S. Park ◽  
Aaron M. Ellison ◽  
Charles C. Davis
Keyword(s):  
Niche Breadth ◽  
Niche Overlap ◽  
Mutation Accumulation ◽  
Accumulation Rates ◽  
Effective Population ◽  
Climatic Niche ◽  
Geographic Ranges ◽  
Outcrossing Species ◽  
Selfing Species ◽  
Over Time

AbstractSelf-pollinating plants (“selfers”) have larger geographic ranges and inhabit higher latitudes than their outcrossing relatives. This finding has led to the hypothesis that selfers also have broader climatic niches. It is possible that the increased likelihood of successful colonization into new areas and the initial purging of deleterious mutations may offset selfers’ inability to adapt to new environments due to low heterozygosity. Here, for the first time, we examine the climatic niches and mutation accumulation rates of hundreds of closely related selfing and outcrossing species. Contrary to expectations, selfers do not have wider climatic niche breadths than their outcrossing sister taxa despite selfers’ greatly expanded geographic ranges. Selfing sister pairs also exhibit greater niche overlap than outcrossing sisters, implying that climatic niche expansion becomes limited following the transition to selfing. Further, the niche breadth of selfers is predicted to decrease significantly faster than that of closely-related outcrossers. In support of these findings, selfers also display significantly higher mutation accumulation rates than their outcrossing sisters, implying decreased heterozygosity, effective population size, and adaptive potential. These results collectively suggest that while the release from mate limitation among selfing species may result in initial range expansion, range size and niche breadth are decoupled, and the limitations of an increasingly homogeneous genome will constrict selfers’ climatic niches and over time reduce their geographic ranges.

Environmental prevalence and the distribution of species richness across climatic niche space

2018 ◽  
Vol 45 (10) ◽  
pp. 2348-2360 ◽  
Author(s):  
Andreas L. S. Meyer ◽  
Marcio R. Pie
Keyword(s):  
Species Richness ◽  
Niche Space ◽  
Climatic Niche
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