Species Explorer

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

54,666 species

kolikkokiiluri

VU

Dolichopus planitarsis

Pop: Not assessed|Trend:

Konkan Tiger Toad

CR

Xanthophryne tigerina

Pop: Not assessed|Trend:

The Konkan Tiger Toad faces severe threats primarily from habitat destruction due to urbanization, agriculture, and infrastructure development in its extremely limited range along the Western Ghats of India. The species is endemic to a very small area and has highly specific habitat requirements, making it extremely vulnerable to any environmental changes or disturbances.

Kønnet sølvlav

CR

Phlyctis agelaea

Pop: Not assessed|Trend:

Kønnet sølvlav (Phlyctis agelaea) is critically endangered primarily due to habitat loss and degradation of old-growth forests where this lichen species depends on specific microclimate conditions. Air pollution, particularly nitrogen deposition and acid rain, severely impacts lichen communities by altering bark chemistry and reducing air quality. Climate change further threatens this species by disrupting the delicate moisture and temperature balance required for lichen survival.

kontrastsvart klarvingesvävfluga

EN

Villa panisca

Pop: Not assessed|Trend:

Villa panisca, a specialized bee fly, faces severe population declines primarily due to habitat loss and degradation of its preferred sandy heathland and coastal dune ecosystems. The species' parasitic lifestyle makes it particularly vulnerable to declines in its host bee populations, which are themselves threatened by agricultural intensification and pesticide use.

kopparmaskros

CR

Taraxacum molybdolepis

Pop: Not assessed|Trend:

Kopparmaskros (Taraxacum molybdolepis) is critically endangered due to its extremely limited distribution in northern Sweden, where it faces habitat degradation from human activities and climate change. The species is restricted to a few small populations in specialized alpine and subalpine environments that are highly vulnerable to disturbance and environmental changes.

korallanemon

CR

Edwardsiella loveni

Pop: Not assessed|Trend:

Edwardsiella loveni, the korallanemon, faces severe threats from habitat destruction due to coastal development and marine pollution in its limited range. Climate change-induced ocean acidification and warming temperatures further threaten the coral reef ecosystems this species depends on for survival.

koralltrollhummer

EN

Munidopsis serricornis

Pop: Not assessed|Trend:

Munidopsis serricornis faces significant threats from deep-sea fishing activities, particularly bottom trawling, which destroys its fragile deep-water habitat. Climate change and ocean acidification are altering the species' cold-water environment, while deep-sea mining activities pose an emerging threat to its benthic ecosystem.

Kõrge napplõug

VU

Garra compressus

Pop: Not assessed|Trend:

Kornet grenlav

VU

Ramalina polymorpha

Pop: Not assessed|Trend:

kornfiltlav

EN

Parmeliella testacea

Pop: Not assessed|Trend:

Parmeliella testacea faces severe decline primarily due to air pollution and habitat degradation affecting the specific microenvironments required for lichen survival. The species is particularly vulnerable to nitrogen deposition and sulfur dioxide emissions which alter bark chemistry and disrupt the delicate symbiotic relationship between fungal and algal components.

Körnige Wachshaut

VU

Xenasma pulverulentum

Pop: Not assessed|Trend:

Korrelpalpmot

VU

Teleiodes saltuum

Pop: Not assessed|Trend:

kort rotlusblomfluga

VU

Pipizella virens

Pop: Not assessed|Trend:

korteputkisirvikäs

VU

Limnephilus borealis

Pop: Not assessed|Trend:

korthårig kulhalsbock

EN

Acmaeops septentrionis

Pop: Not assessed|Trend:

The korthårig kulhalsbock (Acmaeops septentrionis) is declining primarily due to habitat loss from intensive forestry practices that remove old-growth and dead wood substrates essential for larval development. Climate change and forest fragmentation further threaten the remaining populations of this specialized longhorn beetle.

kortspriet korsetzweefvlieg

EN

Neoascia geniculata

Pop: Not assessed|Trend:

Neoascia geniculata is declining primarily due to habitat loss and degradation of wetland ecosystems across its European range. Agricultural intensification, urban development, and changes in water management practices have significantly reduced the availability of suitable breeding and foraging habitats for this specialized hoverfly species.

kostalvmattevever

EN

Maro lehtineni

Pop: Not assessed|Trend:

Maro lehtineni faces severe population declines primarily due to habitat destruction from deforestation and agricultural expansion in its limited range. Climate change and habitat fragmentation further threaten the remaining populations of this endemic spider species.

Kouzi keli

CR

Angraecum calceolus

Pop: Not assessed|Trend:

Angraecum calceolus faces severe threats primarily from habitat destruction due to deforestation and agricultural expansion in its native Madagascar. The species' extremely limited range and small population size make it particularly vulnerable to environmental changes and human activities. Climate change and collection pressure for the horticultural trade further compound these threats.

kransgelélav

CR

Enchylium bachmanianum

Pop: Not assessed|Trend:

Enchylium bachmanianum, a critically endangered lichen species, faces severe decline primarily due to habitat loss and degradation from urban development and agricultural expansion. Air pollution and climate change further threaten the specialized microhabitats this species requires for survival.

kranshinnelav

VU

Leptogium burgessii

Pop: Not assessed|Trend:

kristallticka

VU

Skeletocutis stellae

Pop: Not assessed|Trend:

kristallundlav

VU

Bacidia absistens

Pop: Not assessed|Trend:

kritporing

CR

Resinoporia crassa

Pop: Not assessed|Trend:

Resinoporia crassa, a critically endangered polypore fungus, faces severe decline primarily due to habitat loss from deforestation and degradation of old-growth forests where it depends on specific host trees. The species' extremely limited distribution and specialized ecological requirements make it particularly vulnerable to environmental changes and human activities that fragment or destroy its forest habitat.

krittrøyksopp

VU

Bovista cretacea

Pop: Not assessed|Trend:

krokhorndyvel

EN

Onthophagus fracticornis

Pop: Not assessed|Trend:

The krokhorndyvel (Onthophagus fracticornis) is declining primarily due to habitat loss from agricultural intensification and urban development in its limited range. The species is particularly vulnerable due to its specialized ecological requirements and small population size, making it susceptible to local extinctions from environmental changes.

kromporing

VU

Perenniporia tenuis

Pop: Not assessed|Trend:

krönt grävkräfta

VU

Calocarides coronatus

Pop: Not assessed|Trend:

Krueper's Small White

VU

Pieris krueperi

Pop: Not assessed|Trend:

Kruiskruidgitje

EN

Cheilosia bergenstammi

Pop: Not assessed|Trend:

Cheilosia bergenstammi faces severe population declines primarily due to habitat loss and degradation of its specialized wetland environments. The species is particularly vulnerable to drainage of peat bogs and marshlands, along with agricultural intensification that eliminates the specific plant communities it depends on for breeding and feeding.

Krustenförmige Kohlenbeere

EN

Nemania effusa

Pop: Not assessed|Trend:

Nemania effusa faces significant threats from habitat loss due to deforestation and degradation of old-growth deciduous forests where it grows as a saprobic fungus on dead wood. Climate change and altered precipitation patterns may also affect the moisture conditions required for this species' fruiting and spore dispersal.

kryppyssling

VU

Audouinella serpens

Pop: Not assessed|Trend:

krystalltyllskinn

EN

Scytinostromella heterogenea

Pop: Not assessed|Trend:

The species faces severe pressure from ocean acidification, which compromises its ability to maintain its calcium carbonate skeletal structure essential for colony integrity. Coastal development and increased sedimentation from terrestrial runoff are degrading the clear, low-turbidity waters this species requires for optimal feeding and growth.

kuddgelélav

CR

Arctomia fascicularis

Pop: Not assessed|Trend:

The kuddgelélav faces severe population declines due to extensive habitat loss from deforestation and agricultural expansion across its limited range. Climate change is altering the specific temperature and humidity conditions required for this species' survival, while invasive species compete for resources and disrupt established ecological relationships.

kuggfibbla

CR

Hieracium intermarginatum

Pop: Not assessed|Trend:

Hieracium intermarginatum faces severe population decline primarily due to habitat loss from agricultural intensification and urban development in its limited range. The species' extremely restricted distribution makes it particularly vulnerable to localized threats, while climate change poses additional pressure on its specialized habitat requirements.

kulehodeedderkopp

VU

Walckenaeria capito

Pop: Not assessed|Trend:

Kulsort kuldyne

VU

Nemania carbonacea

Pop: Not assessed|Trend:

Kultalyyrapyrstö

VU

Rachovia hummelincki

Pop: Not assessed|Trend:

Kumakuma, Goliath catfish

VU

Brachyplatystoma filamentosum

Pop: Not assessed|Trend:

kuppelhodeedderkopp

EN

Walckenaeria mitrata

Pop: Not assessed|Trend:

Walckenaeria mitrata faces severe population declines primarily due to habitat destruction and fragmentation of its specialized wetland environments. Climate change and hydrological alterations are further reducing the availability of suitable bog and marsh habitats this species requires.

Küsten-Lochköpfchen

EN

Baryphyma maritimum

Pop: Not assessed|Trend:

Baryphyma maritimum faces severe population declines primarily due to coastal habitat destruction from urban development and tourism infrastructure along Mediterranean coastlines. Climate change-induced sea level rise and increased storm intensity further threaten its specialized coastal cliff and rocky shore habitats.

kustfuktspindel

VU

Robertus heydemanni

Pop: Not assessed|Trend:

kustgräsminerarmal

EN

Elachista vonschantzi

Pop: Not assessed|Trend:

Elachista vonschantzi faces severe population declines primarily due to habitat loss from coastal development and agricultural intensification in its limited range. The species' highly specialized relationship with specific host grasses makes it particularly vulnerable to environmental changes and habitat fragmentation.

kustgrenvivel

VU

Acalles misellus

Pop: Not assessed|Trend:

kustplatvoetje

EN

Platycheirus immarginatus

Pop: Not assessed|Trend:

Platycheirus immarginatus faces severe population declines primarily due to habitat loss and degradation of its specialized wetland environments. Climate change and agricultural intensification are reducing the availability of suitable breeding and foraging sites, while pollution from agricultural runoff further degrades remaining habitat quality.

kustraggvivel

CR

Rhinusa pilosa

Pop: Not assessed|Trend:

Rhinusa pilosa faces severe population declines due to habitat destruction from agricultural expansion and urbanization across its range. The species' specialized feeding requirements on specific host plants make it particularly vulnerable to environmental changes, while its limited dispersal ability restricts recolonization of degraded areas.

kuststumpbagge

CR

Hypocaccus rufipes

Pop: Not assessed|Trend:

Hypocaccus rufipes, the kuststumpbagge, is critically endangered primarily due to severe habitat loss and degradation of coastal dune systems and sandy shoreline environments. The species faces mounting pressure from coastal development, tourism infrastructure, and climate change-induced sea level rise that threatens its specialized beach and dune habitats.

kustvivel

VU

Bagous claudicans

Pop: Not assessed|Trend:

kustwolfspin

EN

Xerolycosa miniata

Pop: Not assessed|Trend:

The kustwolfspin (Xerolycosa miniata) is primarily threatened by coastal habitat destruction and fragmentation due to urban development, tourism infrastructure, and sea level rise. The species' highly specialized habitat requirements and limited distribution make it particularly vulnerable to these anthropogenic pressures.

Kuultomoskiittokala

CR

Gambusia lemaitrei

Pop: Not assessed|Trend:

Gambusia lemaitrei is critically endangered due to severe habitat degradation and loss of its limited freshwater spring habitats in Cuba. The species faces ongoing threats from water extraction, pollution, and habitat modification that have drastically reduced available suitable habitat. Introduction of non-native species and climate change impacts on freshwater systems further threaten the remaining populations.

Kvalmende rødblad

EN

Entoloma nausiosme

Pop: Not assessed|Trend:

Entoloma nausiosme faces severe population declines primarily due to habitat loss from agricultural intensification and urban development in its limited range. The species' specialized ecological requirements and small population size make it particularly vulnerable to environmental changes and habitat fragmentation.

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