TermCymru

Results are displayed in English alphabetical order A-Z

Welsh: rhywogaeth estron

Status B

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau estron

Definition: Anifail neu blanhigyn a gyflwynir yn fwriadol neu’n anfwriadol i amgylchedd naturiol lle nad yw fel arfer i’w gael.

Notes: Mae’r term Saesneg non-native species yn gyfystyr.

Last Updated: 18 September 2024

English: All Wales Species Audit

Welsh: Archwiliad Rhywogaethau Cymru Gyfan

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 19 August 2003

English: amphipod species

Welsh: rhywogaethau amffipod

Status A

Subject: Environment

Part of speech: Noun, Plural

Definition: rhywogaethau sydd â dwy droed

Last Updated: 7 October 2002

English: breeding species

Welsh: rhywogaeth sy'n bridio

Status A

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau sy'n bridio

Last Updated: 22 April 2025

English: choke species

Welsh: rhywogaeth atal

Status A

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau atal

Definition: Rhywogaethau sydd â chwota ar lefel isel iawn. Pe byddid yn cyrraedd trothwy'r cwota hwnnw byddai rhaid i'r cwch pysgota aros yn yr harbwr hyd yn oed os oedd ganddo gwota ar ôl ar gyfer rhywogaethau eraill.

Last Updated: 28 February 2019

English: coincident species

Welsh: rhywogaethau sy'n rhannu'r un cynefin

Status A

Subject: Environment

Part of speech: Noun, Plural

Last Updated: 6 June 2019

English: Conservation of Habitats and Species Regulations 2010

Welsh: Rheoliadau Cadwraeth Cynefinoedd a Rhywogaethau 2010

Status B

Subject: Titles of legislation

Part of speech: Noun, Plural

Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.

Last Updated: 11 November 2025

English: controlled species

Welsh: rhywogaeth o dan reolaeth

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Last Updated: 14 November 2007

English: conventional species

Welsh: rhywogaeth gonfensiynol

Status B

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Last Updated: 30 July 2003

English: cultured species

Welsh: pysgod fferm

Status C

Subject: Environment

Part of speech: Noun, Plural

Definition: Neu "rhywogaethau meithrin". Ystyr 'cultured species' yw pysgod, molwsgiaid, anthropodiaid a chramenogion sydd wedi'u magu o'u hwyau mewn caethiwed.

Last Updated: 4 April 2007

English: declining plant species

Welsh: planhigion sy’n prinhau

Status C

Subject: Plants

Part of speech: Noun, Plural

Last Updated: 19 August 2010

English: European Marine Protected Species

Welsh: Rhywogaeth Forol a Warchodir gan Ewrop

Status B

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: Rhywogaethau Morol a Warchodir gan Ewrop

Definition: Rhywogaeth forol – o forfilod, dolffiniaid neu lamhidyddion - a warchodir drwy ddeddfwriaeth Ewropeaidd (y Gyfarwyddeb Cynefinoedd), a weithredir yng Nghymru gan Reoliadau Gwarchod Cynefinoedd a Rhywogaethau 2010.

Last Updated: 16 September 2015

English: European Protected Species

Welsh: Rhywogaeth a Warchodir gan Ewrop

Status A

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: Rhywogaethau a Warchodir gan Ewrop

Context: ylai cynigion ddangos sut maent yn cydymffurfio â deddfwriaeth sy’n gwarchod Rhywogaethau a Warchodir gan Ewrop gan ei fod yn drosedd anafu, lladd neu aflonyddu ar rywogaeth a warchodir yn fwriadol.

Last Updated: 6 June 2019

English: forage species

Welsh: rhywogaeth brae

Status B

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau prae

Definition: Rhywogaeth fach yng nghanol y gadwyn fwyd forol, sy'n bwydo ar blancton ac sy'n ysglyfaeth i greaduriaid mwy.

Last Updated: 2 December 2021

English: grass species indicative of cultivation

Welsh: mathau o borfa sy'n arwydd bod y tir yn cael ei drin

Status C

Subject: Agriculture

Part of speech: Noun, Plural

Last Updated: 17 November 2011

English: hearing-specialist fish species

Welsh: rhywogaeth bysgod sy'n arbenigo mewn clywed

Status B

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau pysgod sy'n arbenigo mewn clywed

Last Updated: 23 March 2021

English: indicator species

Welsh: rhywogaeth ddangosol

Status C

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Definition: A species whose presence indicates the presence of a set of other species and whose absence indicates the lack of that entire set of species.

Last Updated: 20 April 2011

English: invading species

Welsh: rhywogaethau sy'n ymledu

Status C

Subject: Environment

Part of speech: Noun, Plural

Last Updated: 25 June 2007

English: invasive alien species

Welsh: rhywogaeth estron oresgynnol

Status B

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau estron goresgynnol

Definition: Anifail neu blanhigyn a gyflwynir yn fwriadol neu’n anfwriadol i amgylchedd naturiol lle nad yw fel arfer i’w gael, gyda goblygiadau andwyol difrifol i’w amgylchedd newydd. Gall hefyd achosi niwed economaidd a niwed i iechyd pobl.

Notes: Mae’r term Saesneg invasive non-native species yn gyfystyr.

Last Updated: 16 September 2024

English: invasive aquatic species

Welsh: rhywogaeth oresgynnol ddyfrol

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Last Updated: 13 November 2014

English: invasive non-native species

Welsh: rhywogaethau estron goresgynnol

Status A

Subject: Environment

Part of speech: Noun, Plural

Last Updated: 20 May 2014

English: invasive non-native species

Welsh: rhywogaeth estron oresgynnol

Status B

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau estron goresgynnol

Notes: Mae’r term Saesneg invasive alien species yn gyfystyr.

Last Updated: 18 September 2024

English: invasive species

Welsh: rhywogaeth oresgynnol

Status B

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Definition: A species occurring as a result of human activities beyond its accepted normal distribution and which threatens valued environmental, agricultural or personal resources by the damage it causes.

Last Updated: 22 September 2004

English: keystone species

Welsh: rhywogaeth allweddol

Status C

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Definition: A species whose addition to or loss from an ecosystem leads to major changes in abundance or occurrence of at least one other species.

Last Updated: 20 April 2011

English: K-selected species

Welsh: rhywogaeth model esblygol K

Status B

Subject: Environment

Part of speech: Noun, Feminine, Singular

Definition: K-selection is a type of selection that favours organisms with a low rate of reproduction but whose populations expand to the maximum number of individuals that the habitat can support (the carrying capacity of the habitat). K-selected species (or K strategists) tend to be highly adapted to their environment and are able to compete successfully for food and other resources.

Last Updated: 9 March 2017

English: Landscape Scale Control on Invasive Non-Native Species

Welsh: Rheoli Rhywogaethau Estron Goresgynnol ar Raddfa Tirwedd

Status B

Subject: Agriculture

Part of speech: Proper noun

Last Updated: 20 November 2024

English: Marine Species Disturbance

Welsh: Aflonyddu ar Rywogaethau Morol

Status C

Subject: Environment

Part of speech: Verb

Last Updated: 3 June 2008

English: migratory species

Welsh: rhywogaeth fudol

Status A

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau mudol

Last Updated: 22 April 2025

English: minor avian species

Welsh: mân rywogaethau adar

Status B

Subject: Agriculture

Part of speech: Noun, Plural

Context: Adnewyddu awdurdodiad paratoad o Clostridium butyricum (FERM BP-2789) (Miya-Gold® S) (rhif adnabod 4b1830) fel ychwanegyn bwyd anifeiliaid ar gyfer ieir a fegir ar gyfer dodwy, tyrcwn i’w pesgi, tyrcwn a fegir ar gyfer bridio, mân rywogaethau adar (ac eithrio adar dodwy), perchyll wedi eu diddyfnu a mân rywogaethau teulu’r moch wedi eu diddyfnu, a’i awdurdodi fel ychwanegyn bwyd anifeiliaid ar gyfer ieir i’w pesgi, perchyll sugno a mân rywogaethau moch sugno.

Notes: Daw'r testun cyd-destunol o Reoliadau Ychwanegion Bwyd Anifeiliaid (Awdurdodiadau) (Cymru) 2022.

Last Updated: 10 December 2024

English: minor porcine species

Welsh: mân rywogaethau teulu’r moch

Status B

Subject: Agriculture

Part of speech: Noun, Plural

Context: Mae Atodlen 6 yn adnewyddu awdurdodiad paratoad o Bacillus velezensis (ATCC PTA-6737) (rhif adnabod 4b1823) ac yn ei awdurdodi ar gyfer defnydd newydd mewn bwyd anifeiliaid ar gyfer perchyll sugno a mân rywogaethau teulu’r moch (sugno).

Notes: Daw'r testun cyd-destunol o Reoliadau Ychwanegion Bwyd Anifeiliaid (Awdurdodiadau) (Cymru) 2022.

Last Updated: 10 December 2024

English: minor poultry species

Welsh: mân rywogaethau dofednod

Status B

Subject: Agriculture

Part of speech: Noun, Plural

Context: Mae Rheoliad Gweithredu’r Comisiwn (EU) 2015/1020 sy’n ymwneud ag awdurdodiad paratoad o Bacillus subtilis (ATCC PTA-6737) fel ychwanegyn bwyd anifeiliaid ar gyfer ieir dodwy a mân rywogaethau dofednod ar gyfer dodwy wedi ei ddiwygio fel a ganlyn.

Notes: Daw'r testun cyd-destunol o Reoliadau Ychwanegion Bwyd Anifeiliaid (Awdurdodiadau) (Cymru) 2022.

Last Updated: 10 December 2024

English: mobile species

Welsh: rhywogaeth fudol

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Context: Also known as “migratory species”.

Last Updated: 25 November 2014

English: nationally protected species

Welsh: rhywogaeth sy'n cael ei gwarchod yn genedlaethol

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Definition: Rhywogaeth sydd ar restr y wlad o rywogaethau sydd i gael eu gwarchod.

Last Updated: 7 November 2011

English: native species

Welsh: rhywogaeth frodorol

Status A

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau brodorol

Last Updated: 22 April 2025

English: non-indigenous species

Welsh: rhywogaeth estron

Status A

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau estron

Context: Rhywogaethau sydd y tu allan i’w tiriogaeth naturiol yw rhywogaethau estron.

Last Updated: 6 June 2019

English: non-native species

Welsh: rhywogaeth estron

Status B

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau estron

Definition: Anifail neu blanhigyn a gyflwynir yn fwriadol neu’n anfwriadol i amgylchedd naturiol lle nad yw fel arfer i’w gael.

Notes: Mae’r term Saesneg alien species yn gyfystyr.

Last Updated: 16 September 2024

English: Non-Native Species Secretariat

Welsh: Yr Ysgrifenyddiaeth Rhywogaethau Estron

Status B

Subject: Environment

Part of speech: Noun, Masculine, Singular

Notes: Defnyddir yr acronym NNSS.

Last Updated: 16 September 2024

English: notable species

Welsh: rhywogaeth a nodir

Status B

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: rhywogaethau a nodir

Definition: Rhywogaeth sydd â dynodiad cadwraeth, ond nad oes ganddi amddiffyniad cyfreithiol.

Last Updated: 23 March 2021

English: potentially problematic species list

Welsh: rhestr o blanhigion allai achosi problemau

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Last Updated: 12 December 2011

English: prescribed species

Welsh: rhywogaeth restredig

Status C

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Last Updated: 4 August 2010

English: Principal Biodiversity Species in Wales

Welsh: Rhywogaeth Bwysig Iawn i Fioamrywiaeth Cymru

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Definition: Rhestr o rywogaethau sy’n cael eu defnyddio fel mesur o gyflwr bioamrywiaeth Cymru.

Last Updated: 13 February 2012

English: Priority Species

Welsh: Rhywogaeth â Blaenoriaeth

Status C

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Last Updated: 3 October 2003

English: protected species

Welsh: rhywogaeth a warchodir

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Definition: plant and animal species, including all wild birds, protected under the Conservation (Natural Habitats and Conservation) Regulations 1994, the Wildlife and Countryside Act 1981 and subsequent amendments, or other species protected under legislation specific to them

Last Updated: 10 January 2003

English: regularly occurring migratory species

Welsh: rhywogaeth fudol sy'n bresennol yn rheolaidd

Status A

Subject: Environment

Part of speech: Noun, Plural

Plural: rhywogaethau mudol sy'n bresennol yn rheolaidd

Last Updated: 22 April 2025

English: secondary species

Welsh: rhywogaeth eilaidd

Status B

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Last Updated: 10 July 2012

English: seed rich species

Welsh: rhywogaeth hadog

Status C

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Last Updated: 24 February 2005

English: species

Welsh: rhywogaeth

Status A

Subject: Agriculture

Part of speech: Noun, Feminine, Singular

Last Updated: 29 July 2003

English: species

Welsh: rhywogaethau

Status C

Subject: Law

Part of speech: Noun, Plural

Last Updated: 7 September 2004

English: species action plan

Welsh: cynllun gweithredu ar gyfer rhywogaeth

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Definition: SAP

Last Updated: 3 October 2003

English: Species Control Agreement

Welsh: Cytundeb Rheoli Rhywogaeth

Status B

Subject: Environment

Part of speech: Noun, Masculine, Singular

Plural: Cytundebau Rheoli Rhywogaethau

Definition: Species Control Agreements and Species Control Orders set out measures that must be taken to control or eradicate an invasive non-native animal or plant. Species Control Agreements are voluntary and are used to formalise what steps need to be taken, by whom and by when, in respect of invasive non-native species.

Notes: Dim ond yn yr Alban ar hyn o bryd.

Last Updated: 13 April 2017

TermCymru

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