Risk of Local Extinction of Odonata Freshwater Habitat Generalists and Specialists

Suhonen, Jukka; Korkeamäki, Esa; Salmela, Jukka; Kuitunen, Markku

doi:10.1111/cobi.12231

Cited by 35 publications

(34 citation statements)

References 38 publications

(76 reference statements)

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“…Both of these processes would produce a pattern whereby there are more extant generalist lineages, each with the potential to transition to a more specialized state. Yet there are examples that show empirical support for the opposite as well, with generalists exhibiting higher extinction risk, at least in Odonata [37].…”

Section: Introductionmentioning

confidence: 99%

Evolutionary ecology of specialization: insights from phylogenetic analysis

2014

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In this Special feature, we assemble studies that illustrate phylogenetic approaches to studying salient questions regarding the effect of specialization on lineage diversification. The studies use an array of techniques involving a wide-ranging collection of biological systems (plants, butterflies, fish and amphibians are all represented). Their results reveal that macroevolutionary examination of specialization provides insight into the patterns of trade-offs in specialized systems; in particular, the genetic mechanisms of trade-offs appear to extend to very different aspects of life history in different groups. In turn, because a species may be a specialist from one perspective and a generalist in others, these trade-offs influence whether we perceive specialization to have effects on the evolutionary success of a lineage when we examine specialization only along a single axis. Finally, how geographical range influences speciation and extinction of specialist lineages remains a question offering much potential for further insight.

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Section: Introductionmentioning

confidence: 99%

Evolutionary ecology of specialization: insights from phylogenetic analysis

2014

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“…However, most of the studies on the extinction risk of specialized species have focused on broad resources, such as habitat use (e.g., Korkeamäki & Suhonen ; Bonin ; Suhonen et al. ). A few researchers have investigated the association between dietary specialization and conservation status, but their results were contradictory (e.g., Laurance ; Reed ; Harcourt et al.…”

Section: Discussionmentioning

confidence: 99%

“…A positive relationship between habitat specialization and extinction risk has been found in a range of terrestrial and marine animals (e.g., insects, Hughes et al 2000;reptiles, Foufopoulos & Ives 1999;birds, Owens & Bennett 2000;mammals, Harcourt et al 2002). However, most of the studies on the extinction risk of specialized species have focused on broad resources, such as habitat use (e.g., Korkeamäki & Suhonen 2002;Bonin 2012;Suhonen et al 2014). A few researchers have investigated the association between dietary specialization and conservation status, but their results were contradictory (e.g., Laurance 1991;Reed 1995;Harcourt et al 2002;Safi & Kerth 2004;Boyles & Storm 2007).…”

Section: Discussionmentioning

confidence: 99%

Effects of roost specialization on extinction risk in bats

Sagot

Chaverri

2015

Conservation Biology

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Understanding causes and consequences of ecological specialization is of major concern in conservation. Specialist species are particularly vulnerable to human activities. If their food or habitats are depleted or lost, they may not be able to exploit alternative resources, and population losses may result. We examined International Union for Conservation of Nature (IUCN) Red List bat data and the number of roosts used per species (accounting for phylogenetic independence) to determine whether roost specialization is correlated with extinction risk. We found a significant correlation between the IUCN Red List category and the number of roost types used. Species that use fewer roost types had a higher risk of extinction. We found that caves and similar structures were the most widely used roost types, particularly by species under some level of risk of extinction. Many critically endangered, endangered, or vulnerable species used natural roosts exclusively, whereas less threatened species used natural and human-made roosts. Our results suggest that roost loss, particularly in species that rely on a single roost type, may be linked to extinction risk. Our focus on a single life history trait prevented us from determining how important this variable is for extinction risk relative to other variables, but we have taken a first step toward prioritizing conservation actions. Our results also suggest that roost specialization may exacerbate population declines due to other risk factors, such as hunting pressure or habitat loss, and thus that management actions to preserve species under risk of extinction should prioritize protection of roosting sites.

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“…For example, they have been used to address questions about genetics, life history, and movement dynamics in human-dominated heterogeneous landscapes (9, 18, 48, 51, 56, 104, 105, Feindt et al 2014, Harms et al 2014, Suhonen et al 2014. Other applications include the study of metapopulation and metacommunity dynamics in patchy or changing environments (16,82,99), partitioning variation in community responses among natural and anthropogenic drivers (65, 82), and testing predictions or implications of island biogeographic theory for biodiversity conservation (17, 83, 86, 121, Heiser et al 2014).…”

Section: Odonates As Model Taxamentioning

confidence: 99%

A review of odonatology in freshwater applied ecology and conservation science

Bried

Samways

2015

Freshwater Science

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The academic study of dragonflies and damselflies (odonatology) is well established, but relatively limited attention has been given to odonates in the context of applied ecology and conservation science. We used the Web of Science ™ and Odonatological Abstract Service (ISSN 1438-0269) to capture trends in primary literature, characterize study features (habitats, life stages, etc.), identify research themes, and suggest future directions for odonatology in freshwater applied ecology and conservation science. We found no papers in this area prior to 1980, and 411 papers from 1980 through 2013. Nearly 75% of these papers were recent (since 2005) and >40% were very recent (since 2010). We identified several broad and overlapping research themes: 1) model taxa, 2) tools and indicators, 3) odonate-centered work, and 4) methodological issues and improvements (field sampling, data modeling/simulation, conservation/landscape-scale genetics). We found more reliance on fieldbased observational approaches than experiments and model-driven exercises, although the number of papers using model-driven exercises is rapidly increasing. We found a strong focus on adult stages, odonate assemblages, the Odonata as a whole, and studies of particular species. We identified research priorities in areas such as ecological valuation and management, monitoring and assessment, climate change and landscape planning, concordance with other taxa, effects of urbanization, data modeling/simulation, and rare-species ecology and conservation. To help establish an identity and facilitate communication, we suggest naming this diverse realm "applied odonatology". We think applied odonatology has a good future for a range of topics from conservation genetics and population ecology to assessments of anthropogenic impacts and the conservation of biodiversity. Key words: dragonflies, assessment, climate change, monitoring, landscape planning, freshwater health, biodiversity conservationThe academic study of dragonflies and damselflies (odonatology) is well established. However, relatively few odonatologists work outside of taxonomy and systematics, behavioral ecology, evolutionary ecology, and other prominent areas of classical research. The major books (Corbet 1999, Córdoba-Aguilar 2008), treatises (e.g., Corbet 1980, Stoks and Córdoba-Aguilar 2012), and flagship journals of odonatology reveal a productive legacy, but also relatively limited attention to matters of applied ecology and conservation science. For example, <5% of the 275 papers published during [2009][2010][2011][2012][2013] in Odonatologica and the International Journal of Odonatology are clearly relevant to applied ecology or conservation science. Nevertheless, the relatively few odonatologists working in this area and researchers based in other fields who often or sometimes use odonates as principal study subjects are making important contributions.A growing body of dragonfly-related research deals with the study or use of odonates in the context of freshwater applied ecolo...

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Risk of Local Extinction of Odonata Freshwater Habitat Generalists and Specialists

Cited by 35 publications

References 38 publications

Evolutionary ecology of specialization: insights from phylogenetic analysis

Evolutionary ecology of specialization: insights from phylogenetic analysis

Effects of roost specialization on extinction risk in bats

A review of odonatology in freshwater applied ecology and conservation science

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