Niche Segregation Between Two Alpine Rosefinches: to Coexist in Extreme Environments

Lü, Xin; Gong, Gwo‐Ching; Ma, Xiaoyan

doi:10.1007/s11692-010-9102-7

Cited by 14 publications

(19 citation statements)

References 40 publications

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“…3, clade II). However, where species of these two clades locally co-exist in the same habitat they occupy different niches with respect to the size and variation of food items (smaller vs. bigger grains) and height of nesting sites (C. rubicilloides and C. waltoni eos in the Xiongse Valley near Lhasa; Lu et al 2011). Like snowfinches, even the alpine sister species of rosefinches of these two clades (Fig.…”

Section: True Rosefinches (Carpodacus): a Palearctic Radiation From Tmentioning

confidence: 99%

Evolutionary history of passerine birds (Aves: Passeriformes) from the Qinghai–Tibetan plateau: from a pre-Quarternary perspective to an integrative biodiversity assessment

Päckert

Martens

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et al. 2015

J Ornithol

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As one of the most prominent topographical features on Earth, the Qinghai-Tibetan plateau (QTP) underwent a long and complex history of the QTP uplift from the collision of the Indian and the Eurasian plates to the present. At its southern and southeastern margins, it is flanked by the most significant hotspots of organismic diversity of the northern hemisphere (including birds), the Sino-Himalayan mountain forests. In contrast, the central plateau region itself harbours species-poor communities but also a good number of endemics that presumably evolved from rather ancient (pre-Pleistocene) phylogenetic lineage splits. We discuss the evolutionary history of QTP passerines from a twofold perspective including examples from our own research. First, we provide an overview of those alpine QTP endemics that represent late Miocene and Pliocene lineage splits, i.e. early colonisations to the central alpine QTP region. As an example, true rosefinches (genus Carpodacus) presumably evolved from a forested eastern QTP centre of origin and colonised the (semi-)open plateau habitats several times independently. Second, we discuss younger speciation events corresponding to phylogeographic east-west divides along the southern QTP margin. A multidisciplinary approach combining genetic, bioacoustic and morphological markers shed new light on the phylogenetic relationships of Pnoepyga wren babblers and on the intraspecific subdivision of the Buff-barred Warbler (Phylloscopus pulcher).

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Section: True Rosefinches (Carpodacus): a Palearctic Radiation From Tmentioning

confidence: 99%

Evolutionary history of passerine birds (Aves: Passeriformes) from the Qinghai–Tibetan plateau: from a pre-Quarternary perspective to an integrative biodiversity assessment

Päckert

Martens

Sun³

et al. 2015

J Ornithol

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“…Resource partitioning to reduce competition between sympatric congener species can occur along the axes of space, diet, and time (Lu, Gong & Ma, ; De Leon et al ., ). The two nuthatches in this study are found in the same habitats in their contact zone in Zagros Mountains, where they both feed on similar insect and plant foods.…”

Section: Resultsmentioning

confidence: 99%

Trophic niche partitioning between two Rock Nuthatches (Sitta tephronota&Sitta neumayer) in a contact zone in Iran

et al. 2016

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Two sympatric nuthatch species, Sitta tephronota and S. neumayer, provided the exemplar case of character displacement when the term was coined. The two species are quite similar morphologically but have diverged from one another in sympatry, presumably because of competition-driven selection favoring the partitioning of food resources. However, actual diet partitioning has never been shown. Here, we report the dietary composition of the two species by analyzing items recovered from the gastrointestinal tract. We found that S. tephronata fed predominantly on Coleopterans, Hemipterans and Orthopterans with the most important seed plants taken being Amygdalus lycioides, Ficus carica and Fabaceae, whereas, S. neumayer fed mainly on Coleopterans, Hemipterans and Lepidopteran, with A. lycioides, Fabaceae and Tritium aestivum as the most important plants taken. To determine whether the two species partition prey into different sizes, we examined two mostly abundant insect preys (Hemipterans and Coleopterans) and measured head length for Hemipterans and mandible size for Coleopterans as proxies for prey body size. We found a significant relationship between bird body size and prey size, as S. tephronata, which is larger, captured larger bugs and beetles. We also measured the ability of each species to crack seeds of different hardness, finding that S. tephronata takes larger and harder seeds than S. neumayer. Analyses of trophic niche breadth and overlap showed (1) that trophic niche breadth for S. neumayer was wider than that for S. tephronata; (2) overall trophic niche overlap was considerably high but (3) overlap in the size of the most frequently consumed insects was low, suggesting that the species may be partitioning resources by prey size. We conclude that the relative body size of consumed prey is an important axis of niche partitioning and may have driven character displacement in associated trophic traits, allowing the stable coexistence of the two species.

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“…Carpodacus pulcherrimus and C. waltoni are also slightly ecologically segregated, with the former preferring the brushy zone just above the mountain forest ( Juniperus and Rhododendron ; Diesselhorst, ), and the latter preferring alpine grassland, with Rosa and Berberis bushes (Lu, Gong & Ma, , Lu Xin, pers. comm.).…”

Section: Discussionmentioning

confidence: 99%

Complete phylogeny and historical biogeography of true rosefinches (Aves:Carpodacus)

et al. 2013

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True rosefinches (Aves: Carpodacus) are restricted to Eurasia, and 19 out of 25 species occur in the Sino‐Himalayas, making this the likely centre of origin. To test this hypothesis, suggested species splits had to be evaluated and potential further cryptic diversity unravelled. A taxon‐complete dated molecular phylogeny was reconstructed using maximum‐likelihood and Bayesian methods. Maximum‐parsimony and likelihood approaches were applied to deduce ancestral areas. Rosefinches, including the widespread Carpodacus erythrinus (Pallas, 1770), originated in south‐west China (and the Himalayas) 14 Mya, and gave rise to a smaller clade consisting of C. erythrinus, Haematospiza sipahi (Hodgson, 1836), and Chaunoproctus ferreorostris (Vigors, 1829), and a larger clade with 22 species. The latter split into four major lineages through vicariance during the uplift of the Himalayas. The suggested species splits of dubius from Carpodacus thura Bonaparte & Schlegel, 1850, formosanus from Carpodacus vinaceus Verreaux, 1871, grandis from Carpodacus rhodochlamys Brandt, 1843, verreauxii from Carpodacus rodopeplus (Vigors, 1831) (even polyphyletic) could be supported, whereas the suggested split of severtzovi from Carpodacus rubicilla (Güldenstädt, 1775) appears to be too young, and should be considered intraspecific. On the other hand, the central Asian lineage of Carpodacus synoicus Temminck, 1825 deserves species rank [Carpodacus stolickae (Hume, 1874)]. The Carpodacus eos/pulcherrimus complex consists of four lineages, pulcherrimus/argyrophrys and davidianus [Carpodacus pulcherrimus s.s. (Moore, 1856)], and eos and waltoni [Carpodacus waltoni (Sharpe, 1905)]. © 2013 The Linnean Society of London

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Niche Segregation Between Two Alpine Rosefinches: to Coexist in Extreme Environments

Cited by 14 publications

References 40 publications

Evolutionary history of passerine birds (Aves: Passeriformes) from the Qinghai–Tibetan plateau: from a pre-Quarternary perspective to an integrative biodiversity assessment

Evolutionary history of passerine birds (Aves: Passeriformes) from the Qinghai–Tibetan plateau: from a pre-Quarternary perspective to an integrative biodiversity assessment

Trophic niche partitioning between two Rock Nuthatches (Sitta tephronota&Sitta neumayer) in a contact zone in Iran

Complete phylogeny and historical biogeography of true rosefinches (Aves:Carpodacus)

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