Consequence of Inter Class Competition and Predation on the Adaptive Radiation of Lizards and Birds in the Dry Forest of Western Madagascar

Hasegawa, Masami; Mori, Akira; Nakamura, Masahiko; Mizuta, Tsutomu; Asai, Shigeki; Ikeuchi, Isami; Rakotomanana, Hajarinina; Okamiya, Takayoshi; Yamagishi, Satoshi

doi:10.2326/048.008.0108

Cited by 7 publications

(5 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the Ankarafantsika National Park, 86 avian species are found (Mizuta 2005a), and at least 49 of these species are commonly observed (Hasegawa et al 2009). Some of these birds form mixed-species flocks and use auditory information routinely (Eguchi et al 1993).…”

Section: Discussionmentioning

confidence: 99%

“…Common possible raptorial predators for the lizard and the bird are Frances's sparrow hawk (Accipiter francesii), Madagascar buzzard (Buteo brachypterus), yellow-billed kite (Milvua aegyptius) and Madagascar harrier hawk (Polyboroides radiatus). These raptors are diurnal and common in the Ampijoroa forest, and prey upon reptiles and small birds (Dee 1986;Langrand 1990;Rene de Roland & Thorstrom 2003;Hasegawa et al 2009).…”

Section: (B) Animalsmentioning

confidence: 99%

“…These raptors are diurnal and common in the Ampijoroa forest, and prey upon reptiles and small birds (Dee 1986;Langrand 1990;Rene de Roland & Thorstrom 2003;Hasegawa et al 2009). …”

Section: Methodsmentioning

confidence: 99%

“…The Ampijoroa dry deciduous forest, which is located in northwestern Madagascar, is a good site for an animal community study, because at least 86 avian, 47 reptilian, 9 amphibian and 20 mammalian species inhabit it sympatrically (Mizuta 2005a;Mori et al 2006). These terrestrial vertebrates show complex interspecific interaction networks that include predator-prey relationships and resource competition both within and between these classes (Mizuta 2002(Mizuta , 2005bMori & Randriamahazo 2002a;Nakamura 2004;Nakamura et al 2004;Hasegawa et al 2009). One common lizard in this community is the Madagascan spiny-tailed iguana, Oplurus cuvieri cuvieri.…”

Section: Introductionmentioning

confidence: 99%

“…These terrestrial vertebrates show complex interspecific interaction networks that include predator-prey relationships and resource competition both within and between these classes (Mizuta 2002(Mizuta , 2005bMori & Randriamahazo 2002a;Nakamura 2004;Nakamura et al 2004;Hasegawa et al 2009). One common lizard in this community is the Madagascan spiny-tailed iguana, Oplurus cuvieri cuvieri.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Vigilance against predators induced by eavesdropping on heterospecific alarm calls in a non-vocal lizard Oplurus cuvieri cuvieri (Reptilia: Iguania)

Itô

Mori

2009

Proc. R. Soc. B.

Self Cite

View full text Add to dashboard Cite

Prey animals can reduce their risk of predation by detecting potential predators before encounters occur. Some animals gain information about nearby predators by eavesdropping on heterospecific alarm calls. Despite having well-developed ears, most lizards do not use vocal information for intraspecific communication, and few studies have shown practical use of the ears in wild lizards. Here, we show that the Madagascan spiny-tailed iguana (Oplurus cuvieri cuvieri ) obtains auditory signals for predator detection. The Madagascan spiny-tailed iguana and the Madagascar paradise flycatcher (Terpsiphone mutata) are syntopic inhabitants of the Ampijoroa dry deciduous forest of Madagascar. The iguana and the flycatcher have neither a predator -prey relationship nor resource competition, but they have shared predators such as raptors and snakes. Using playback experiments, we demonstrated that the iguana discriminates mobbing alarm calls of the flycatcher from its songs and then enhances its vigilance behaviour. Our results demonstrate the occurrence of an asymmetrical ecological relationship between the Madagascan spinytailed iguana and the paradise flycatcher through eavesdropping on information about the presence of predators. This implies that indirect interspecific interactions through information recognition may be more common than generally thought in an animal community.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: (B) Animalsmentioning

confidence: 99%

“…These raptors are diurnal and common in the Ampijoroa forest, and prey upon reptiles and small birds (Dee 1986;Langrand 1990;Rene de Roland & Thorstrom 2003;Hasegawa et al 2009). …”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Vigilance against predators induced by eavesdropping on heterospecific alarm calls in a non-vocal lizard Oplurus cuvieri cuvieri (Reptilia: Iguania)

Itô

Mori

2009

Proc. R. Soc. B.

Self Cite

View full text Add to dashboard Cite

show abstract

The Madagascan spiny-tailed iguana alters the sequence of anti-predator responses depending on predator types

Itô

Mori

2012

African Journal of Herpetology

View full text Add to dashboard Cite

Insectivorous birds in the Neotropics: Ecological radiations, specialization, and coexistence in species-rich communities

Kent

Sánchez

Şekercioğlu

2020

The Auk

View full text Add to dashboard Cite

Insectivorous birds reach their highest diversity in the tropics and represent a striking variety of morphological and behavioral specializations for foraging, yet explanations for these patterns are inadequate because of both our limited understanding of the drivers of ecological diversification within and among clades and of coexistence mechanisms in particular. Here we synthesize recent information on Neotropical insectivorous birds, including their diversity, evolutionary ages and locations of origin, phylogenies, and both competitive and predator–prey species interactions. We propose a novel evolutionary hypothesis for the origin and coexistence of the phenotypic diversity of insectivore foraging morphologies in species-rich communities, based on their extraordinary food-resource specializations. Specifically, we develop the Biotic Challenge Hypothesis to explain the evolution of these specializations, and we provide preliminary evidence in support of this hypothesis based on a synopsis of both Neotropical insectivore specializations by family and arthropod antipredator adaptations by category. We argue that, from the perspective of tropical insectivorous birds, and particularly in the most species-rich, mainland Neotropical communities, the environment is an arthropod desert. Coexistence with all of the other insectivores requires feeding specialization to compete exploitatively and diffusely against evolutionarily diverse species and far less frequently against sister species. The arthropod desert arises primarily because of (1) the tactical diversity of arthropod predators as insectivore competitors and (2) the evolutionary arms races involving arthropod predators with their prey, which render many arthropods inaccessible to most insectivorous predators. Our idea provides an explicit mechanism for pervasive, diffuse tropical interspecific competition, for evolutionary specialization, and for positive feedback on speciation rates at low latitudes, thereby generating new predictions and insights into tropical life histories and the Latitudinal Diversity Gradient. Other recent ideas concerning the coexistence of Neotropical insectivores, including positive species interactions within mixed species flocks, are recognized and evaluated. We discuss ways to test predictions resulting from the new view of communities developed here, including a case study of diet specialization by Costa Rican tyrannid flycatchers. Our synthesis of the origin and nature of Neotropical insectivore communities injects new life into the “zombie” idea that evolution works differently in the species-rich tropics.

show abstract

Consequence of Inter Class Competition and Predation on the Adaptive Radiation of Lizards and Birds in the Dry Forest of Western Madagascar

Cited by 7 publications

References 29 publications

Vigilance against predators induced by eavesdropping on heterospecific alarm calls in a non-vocal lizard Oplurus cuvieri cuvieri (Reptilia: Iguania)

Vigilance against predators induced by eavesdropping on heterospecific alarm calls in a non-vocal lizard Oplurus cuvieri cuvieri (Reptilia: Iguania)

The Madagascan spiny-tailed iguana alters the sequence of anti-predator responses depending on predator types

Insectivorous birds in the Neotropics: Ecological radiations, specialization, and coexistence in species-rich communities

Contact Info

Product

Resources

About