Chatin sisältö haetaan osoitteesta https://tawk.to. Sen näyttämiseen vaaditaan, että hyväksyt sivuston evästeet. Pääset näkemään sisällön sallimalla evästeasetuksista seuraavat: Chat-palvelun evästeet.
EvästeasetuksetHakutulokset
Selaa lehtiä
- Näytetään 1 - 57 / 57
Biodiversitas : journal of biological diversity Näytä tarkat tiedot
Biodiversity and conservation Näytä tarkat tiedot
Kieli: | eng spa |
---|---|
Julkaisija: | [Osorno, Chile] : Centro de Estudios en Biodiversidad (CEBCh) 2015- |
ISSN: |
0719-4986 |
Aiheet: | |
Tallennettuna: |
|
Biodiversity data journal Näytä tarkat tiedot
Biodiversity Information Science and Standards Näytä tarkat tiedot
BioRisk : biodiversity & ecosystem risk assessment Näytä tarkat tiedot
Kieli: | eng por spa |
---|---|
Julkaisija: | São Paulo : Centro de Referência em Informação Ambiental [2001]- |
ISSN: |
1676-0611 |
Aiheet: | |
Tallennettuna: |
|
Check list : journal of biodiversity data Näytä tarkat tiedot
Kieli: | spa |
---|---|
Julkaisija: | Sevilla : Asociación Hombre y Territorio (HyT) [2011]- |
Aiheet: | |
Tallennettuna: |
|
Conservation genetics resources Näytä tarkat tiedot
Global temperature is increasing, especially over northern lands (>50° N), owing to positive feedbacks1. As this increase is most pronounced in winter, temperature seasonality (ST)—conventionally defined as the difference between summer and winter temperatures—is diminishing over time2, a phenomenon that is analogous to its equatorward decline at an annual scale. The initiation, termination and performance of vegetation photosynthetic activity are tied to threshold temperatures3. Trends in the timing of these thresholds and cumulative temperatures above them may alter vegetation productivity, or modify vegetation seasonality (SV), over time. The relationship between ST and SV is critically examined here with newly improved ground and satellite data sets. The observed diminishment of ST and SV is equivalent to 4° and 7° (5° and 6°) latitudinal shift equatorward during the past 30 years in the Arctic (boreal) region. Analysis of simulations from 17 state-of-the-art climate models4 indicates an additional STdiminishment equivalent to a 20° equatorward shift could occur this century. How SV will change in response to such large projected ST declines and the impact this will have on ecosystem services5 are not well understood. Hence the need for continued monitoring6 of northern lands as their seasonal temperature profiles evolve to resemble thosefurther south.
Diversity & distributions Näytä tarkat tiedot
Kieli: | eng |
---|---|
Julkaisija: | Lausanne, Switzerland : [Frontiers Research Foundation] [2014-] |
Aiheet: | |
Tallennettuna: |
|
Global ecology & biogeography Näytä tarkat tiedot
Insect conservation and diversity Näytä tarkat tiedot
Kieli: | eng |
---|---|
Julkaisija: | [Milton, New South Wales] : Wiley on behalf of the Xishuangbanna Tropical Botanical Garden (XTBG) 2022- |
ISSN: |
2770-9329 |
Aiheet: | |
Tallennettuna: |
|
International journal of biodiversity Näytä tarkat tiedot
Kieli: | eng |
---|---|
Julkaisija: | New York, NY ; Nasr City, Cairo : Hindawi Publishing Corporation 2013- |
ISSN: |
2314-4157 |
Aiheet: | |
Tallennettuna: |
|
Journal of threatened taxa Näytä tarkat tiedot
Journal of wildlife and biodiversity Näytä tarkat tiedot
Koedoe : African protected area conservation and science Näytä tarkat tiedot
Kieli: | afr eng |
---|---|
Julkaisija: | Durbanville, Cape Town, Western Cape Province : African Online Scientific Information Systems (Pty) Ltd., AOSIS 1958- |
ISSN: |
2071-0771 |
Aiheet: | |
Tallennettuna: |
|