Clinal colour variation within a panmictic population of tree squirrels,Tamiasciurus douglasii(Rodentia: Sciuridae), across an ecological gradient

Andreas S. Chavez; G. J. Kenagy

doi:10.1111/bij.12361

Clinal colour variation within a panmictic population of tree squirrels,Tamiasciurus douglasii(Rodentia: Sciuridae), across an ecological gradient

Biological Journal of the Linnean Society ◽

10.1111/bij.12361 ◽

2014 ◽

Vol 113 (2) ◽

pp. 536-546 ◽

Cited By ~ 2

Author(s):

Andreas S. Chavez ◽

G. J. Kenagy

Keyword(s):

Ecological Gradient ◽

Colour Variation ◽

Panmictic Population ◽

Tree Squirrels

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Gloger’s ecogeographical rule and colour variation among Willow Tits Parus montanus

Ornis Norvegica ◽

10.15845/on.v32i0.156 ◽

2009 ◽

Vol 32 (0) ◽

pp. 49 ◽

Cited By ~ 2

Author(s):

Olav Hogstad ◽

Per Gustav Thingstad ◽

Daverdin Marc

Keyword(s):

Colour Variation ◽

Parus Montanus

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Exploring the Functional Strategies Adopted by Coastal Plants Along an Ecological Gradient Using Morpho-functional Traits

Estuaries and Coasts ◽

10.1007/s12237-021-00945-y ◽

2021 ◽

Author(s):

Daniela Ciccarelli ◽

Cleusa Bona

Keyword(s):

C4 Photosynthesis ◽

Abiotic Factors ◽

Species Abundance ◽

Organic Matter Content ◽

Matter Content ◽

Strong Interactions ◽

Soil Parameters ◽

Dry Matter Content ◽

Ecological Gradient ◽

Ecological Conditions

AbstractCoastal dunes are characterised by strong interactions between biotic and abiotic factors along a short gradient from the shoreline to the inland region. We carried out an ecological analysis of the vegetation in a protected area of the Italian coast to evaluate the relationships among species abundance, the occurrence of morphoanatomical traits related to leaves, stems, and roots, and soil variables. Three transects were established perpendicular to the shoreline, with 27 plots distributed in the frontal dunes, backdunes, and temporarily wet dune slacks. An analysis based on community-weighted mean values showed that the pioneer communities of the frontal dunes were dominated by ruderals that are well adapted to the harsh ecological conditions of these environments, showing succulent leaves, high limb thickness values, and low values for leaf dry matter content (LDMC). The backdune vegetation was a mosaic of annual herbaceous and perennial shrub communities showing both ruderal and stress-tolerant strategies (clonality, sclerified leaves, high LDMC values, root phenolics) consistent with less extreme ecological conditions. The dune slack areas were dominated by plants showing adaptations to both arid and flooded environments, such as C4 photosynthesis, amphistomatic leaves, and abundant aerenchyma in the roots. The invasive status, C4 photosynthesis, leaf trichomes, and aerenchyma in the roots were significantly correlated with soil humidity, organic matter content, and pH. These results demonstrate the usefulness of anatomical traits (including root system traits) in understanding the functional strategies adopted by plants. Invasive species tended to occupy plots with high levels of soil moisture, suggesting an avoidance strategy for the harsh environmental conditions of coastal sand dunes. Finally, we suggest including information regarding root systems into coastal monitoring programs because they are directly linked to soil parameters useful in coastal dune management and protection.

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Ecological gradient of sexual selection: elevation and song elaboration in finches

Oecologia ◽

10.1007/s00442-008-1092-0 ◽

2008 ◽

Vol 157 (3) ◽

pp. 545-551 ◽

Cited By ~ 22

Author(s):

Emilie C. Snell-Rood ◽

Alexander V. Badyaev

Keyword(s):

Sexual Selection ◽

Ecological Gradient

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Genetic and phenotypic variation along an ecological gradient in lake trout Salvelinus namaycush

BMC Evolutionary Biology ◽

10.1186/s12862-016-0788-8 ◽

2016 ◽

Vol 16 (1) ◽

Cited By ~ 7

Author(s):

Shauna M. Baillie ◽

Andrew M. Muir ◽

Michael J. Hansen ◽

Charles C. Krueger ◽

Paul Bentzen

Keyword(s):

Phenotypic Variation ◽

Lake Trout ◽

Salvelinus Namaycush ◽

Ecological Gradient

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Effect of Silver Oxide on Colour Variation and Gloss of an Opaque Glaze

Transactions of the Indian Ceramic Society ◽

10.1080/0371750x.2013.868322 ◽

2014 ◽

Vol 73 (1) ◽

pp. 22-30 ◽

Cited By ~ 1

Author(s):

L. İ. İsrail ◽

K. Köseoglu ◽

H. Cengizler

Keyword(s):

Silver Oxide ◽

Colour Variation ◽

Opaque Glaze

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Acoustic analysis of an intergrade zone between two call races of the Limnodynastes tasmaniensis complex (Anura : Leptodactylidae) in south-eastern Australia

Australian Journal of Zoology ◽

10.1071/zo9750113 ◽

1975 ◽

Vol 23 (1) ◽

pp. 113 ◽

Cited By ~ 15

Author(s):

MJ Littlejohn ◽

JD Roberts

Keyword(s):

Acoustic Analysis ◽

Secondary Contact ◽

Ecological Gradient ◽

North Central ◽

Call Structure ◽

Central Victoria ◽

South Eastern ◽

Eastern Australia ◽

Mating Calls ◽

South Eastern Australia

Mating calls of the northern and southern call races of the L. tasmaniensis complex are described. Analysis of call structure along a transect across the main contact between these allopatric forms in north central Victoria indicates that there is a zone of intergradation between 90 and 135 km wide, about 215 km long and with a north-westerly orientation. The interaction is interpreted as a secondary contact in which there is hybrid or recombinant superiority along a subtle ecological gradient.

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