Species Explorer

Browse and search species from the IUCN Red List and GBIF.

54,666 species

Reddish Two-eyed Chelifer

VU

Roncus lubricus

Pop: Not assessed|Trend:

redshank, common redshank

VU

Tringa totanus

Pop: Not assessed|Trend:

Redtail catfish

VU

Phractocephalus hemioliopterus

Pop: Not assessed|Trend:

Reed Bunting

EN

Emberiza schoeniclus

Pop: Not assessed|Trend:

Reichbeschleierter Faserling

EN

Psathyrella spintrigeroides

Pop: Not assessed|Trend:

reliktmygg

EN

Synneuron annulipes

Pop: Not assessed|Trend:

reliktmygga

EN

Hyperoscelis eximia

Pop: Not assessed|Trend:

reliktpiggskinn

VU

Trechispora subhelvetica

Pop: Not assessed|Trend:

reliktslända

EN

Inocellia crassicornis

Pop: Not assessed|Trend:

reliktsmalbi

CR

Lasioglossum quadrinotatulum

Pop: Not assessed|Trend:

Reliktsmalbi faces severe threats from habitat destruction caused by agricultural expansion and urban development, which eliminates the specific soil and floral resources essential for its survival. Climate change disrupts the synchronization between the bee's life cycle and the flowering periods of its food plants. Pesticide contamination from nearby farming activities poses additional risks to individual bee health and reproductive success.

Resinous Polypore

VU

Ischnoderma resinosum

Pop: Not assessed|Trend:

Reverdin's Blue

CR

Plebejus argyrognomon

Pop: Not assessed|Trend:

Reverdin's Blue faces severe population declines due to habitat loss from agricultural intensification and urban development across its range. The species' dependence on specific host plants and fragmented grassland habitats makes it particularly vulnerable to landscape changes and climate-driven shifts in vegetation communities.

Revolute Beard-moss

VU

Pseudocrossidium revolutum

Pop: Not assessed|Trend:

Rezovo shemaya

EN

Alburnus schischkovi

Pop: Not assessed|Trend:

Rhagie ermite

CR

Rhamnusium bicolor

Pop: Not assessed|Trend:

Rhamnusium bicolor faces severe population declines due to widespread deforestation and habitat fragmentation across its range. The species' dependence on mature forest ecosystems makes it particularly vulnerable to logging activities and agricultural conversion, while its specialized larval requirements for specific host trees further compound conservation challenges.

Rhagie nez-de-clown

CR

Dinoptera collaris

Pop: Not assessed|Trend:

Dinoptera collaris faces severe population declines due to widespread deforestation and habitat fragmentation across its limited range. The species' specialized habitat requirements and small population size make it extremely vulnerable to ongoing agricultural expansion and climate-induced changes to forest ecosystems.

ribbdyngbagge

EN

Euheptaulacus sus

Pop: Not assessed|Trend:

Ribbed Bog Moss

VU

Aulacomnium palustre

Pop: Not assessed|Trend:

Ribbon-leaved Water-plantain

CR

Alisma gramineum

Pop: Not assessed|Trend:

Ribbon-leaved Water-plantain faces severe threats from habitat destruction due to wetland drainage, agricultural conversion, and urban development. Water pollution from agricultural runoff and industrial activities further degrades remaining aquatic habitats, while climate change alters water levels and seasonal flooding patterns critical for the species' survival.

Ricegrass

VU

Leersia oryzoides

Pop: Not assessed|Trend:

Richard de Berlin, Richard berlinois, Grand Bupreste du Hêtre

CR

Dicerca berolinensis

Pop: Not assessed|Trend:

Dicerca berolinensis faces severe population declines due to widespread loss of mature beech forest habitats across its European range. The species' dependence on old-growth beech trees makes it particularly vulnerable to intensive forestry practices, climate change impacts on forest ecosystems, and habitat fragmentation that isolates remaining populations.

Richard des prunes

CR

Ptosima undecimmaculata

Pop: Not assessed|Trend:

Ptosima undecimmaculata faces severe population declines primarily due to habitat loss from deforestation and agricultural expansion across its Mediterranean range. The species' dependence on specific host trees for larval development makes it particularly vulnerable to forest fragmentation and degradation. Climate change is exacerbating these pressures by altering the distribution and health of its preferred woodland habitats.

Richard du chêne, Grand Bupreste du Chêne

CR

Eurythyrea quercus

Pop: Not assessed|Trend:

The Grand Bupreste du Chêne faces severe population declines primarily due to the widespread loss and degradation of mature oak forests across its European range. Climate change and forest management practices that favor younger tree stands have significantly reduced the availability of suitable breeding habitat, while pollution and habitat fragmentation further threaten remaining populations.

Richard's Yelloweyed Grass

EN

Xyris jupicai

Pop: Not assessed|Trend:

Richardson's Least Gecko

EN

Sphaerodactylus richardsonii

Pop: Not assessed|Trend:

rietmarpissa

VU

Marpissa radiata

Pop: Not assessed|Trend:

rietstrekspin

EN

Tetragnatha striata

Pop: Not assessed|Trend:

riftedderkopp

EN

Parapelecopsis nemoralis

Pop: Not assessed|Trend:

Rigid Aloe-moss

VU

Aloina rigida

Pop: Not assessed|Trend:

Rihmasuomutetra

VU

Pterobrycon landoni

Pop: Not assessed|Trend:

Rimmed Wart Lichen

CR

Varicellaria velata

Pop: Not assessed|Trend:

Rimmed Wart Lichen faces severe threats from air pollution and habitat degradation, as lichens are extremely sensitive to atmospheric contaminants and changes in air quality. Climate change is altering precipitation patterns and temperature regimes in its specialized habitats, while deforestation and urban development continue to destroy the old-growth forest ecosystems this species depends upon.

Ring Pellia

VU

Pellia neesiana

Pop: Not assessed|Trend:

Ringed China-mark

VU

Parapoynx stratiotata

Pop: Not assessed|Trend:

Ringed Plover, Common Ringed Plover

CR

Charadrius hiaticula

Pop: Not assessed|Trend:

The Common Ringed Plover faces severe population declines due to widespread habitat loss from coastal development, tourism infrastructure, and sea-level rise affecting critical breeding and feeding areas. Human disturbance at nesting sites, combined with predation pressure and climate change impacts on Arctic breeding grounds, has pushed many populations toward critical thresholds. Conservation status may vary by region or assessment authority, but cumulative pressures across the species' range pose significant risks.

Ringed Spinytail Iguana

VU

Morunasaurus annularis

Pop: Not assessed|Trend:

ringlav

VU

Evernia divaricata

Pop: Not assessed|Trend:

Ringlet

VU

Coenonympha tullia

Pop: Not assessed|Trend:

Ringlet

VU

Aphantopus hyperantus

Pop: Not assessed|Trend:

ringpootzwartkop

VU

Talavera aequipes

Pop: Not assessed|Trend:

Rio Abajo spleenwort

CR

Asplenium corderoanum

Pop: Not assessed|Trend:

The Rio Abajo spleenwort faces severe threats from habitat destruction and fragmentation due to deforestation, agricultural expansion, and urban development in Puerto Rico's limestone karst regions. Its extremely limited distribution and small population size make it highly vulnerable to environmental changes and human disturbances. The species' specialized habitat requirements and slow reproductive rate further compound its risk of extinction.

Rio Azuela Glass Frog

VU

Hyalinobatrachium pellucidum

Pop: Not assessed|Trend:

Rio Mutum frog

VU

Dasypops schirchi

Pop: Not assessed|Trend:

Rio Rocket Frog

VU

Allobates olfersioides

Pop: Not assessed|Trend:

Rio Suno Antwren

VU

Myrmotherula sunensis

Pop: Not assessed|Trend:

Ripart's Anomalous Blue

CR

Polyommatus ripartii

Pop: Not assessed|Trend:

Ripart's Anomalous Blue faces severe threats from habitat loss and fragmentation due to agricultural intensification and urban development across its limited Mediterranean range. Climate change poses additional risks by altering the delicate ecological conditions required for both the butterfly and its host plants, while small, isolated populations are increasingly vulnerable to local extinctions.

Risdon Peppermint

VU

Eucalyptus risdoni

Pop: Not assessed|Trend:

Rissige Gewebehaut

VU

Athelopsis lacerata

Pop: Not assessed|Trend:

River Bristle-moss

EN

Orthotrichum rivulare

Pop: Not assessed|Trend:

River Skater

CR

Aquarius najas

Pop: Not assessed|Trend:

The River Skater faces severe threats from habitat degradation due to water pollution, dam construction, and urban development along waterways. Climate change is altering water flow patterns and temperatures in the specific stream environments this species requires, while invasive species compete for resources and disrupt the delicate surface tension dynamics essential for their survival.

River Thyme-moss

EN

Pseudobryum cinclidioides

Pop: Not assessed|Trend:

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