Temporal variation in habitat quality shapes the distribution-abundance relationship in waterbirds at landscape scale

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F24%3A101007" target="_blank" >RIV/60460709:41330/24:101007 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/24:10496398

Výsledek na webu

<a href="https://doi.org/10.1002/ecs2.70088" target="_blank" >https://doi.org/10.1002/ecs2.70088</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ecs2.70088" target="_blank" >10.1002/ecs2.70088</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Temporal variation in habitat quality shapes the distribution-abundance relationship in waterbirds at landscape scale

Popis výsledku v původním jazyce

The distribution-abundance relationship (DAR) is a well-established macroecological pattern, where more locally abundant species are also more widespread across landscapes. However, it is not clear whether this relationship is temporally invariant, or how destabilization may manifest. Here, we examine the DAR at the landscape level in a unique but overlooked model system, that is, a waterbird assemblage inhabiting fishponds within the Tř eboň sko Basin Biosphere Reserve, Czechia. Using 12 years of biannual census data across 134 intensively managed fishponds, collected in May and July, we describe variation in the slope of the DAR, expressed as the association between bird density and fishpond occupancy. We then tested for the role of environmental parameters and bird traits in determining the relationship's shape, utilizing general multivariate regression and a model-averaging technique. Overall, we corroborated an expected positive DAR for waterbirds, and we present, for the first time, a consistent seasonal weakening of the interspecific DAR. We posit that this decline in the relationship's slope is a result of the deterioration and homogenization of habitat quality later in the summer, which resulted in a large deficit of suitable fishponds as populations increased.

Název v anglickém jazyce

Temporal variation in habitat quality shapes the distribution-abundance relationship in waterbirds at landscape scale

Popis výsledku anglicky

The distribution-abundance relationship (DAR) is a well-established macroecological pattern, where more locally abundant species are also more widespread across landscapes. However, it is not clear whether this relationship is temporally invariant, or how destabilization may manifest. Here, we examine the DAR at the landscape level in a unique but overlooked model system, that is, a waterbird assemblage inhabiting fishponds within the Tř eboň sko Basin Biosphere Reserve, Czechia. Using 12 years of biannual census data across 134 intensively managed fishponds, collected in May and July, we describe variation in the slope of the DAR, expressed as the association between bird density and fishpond occupancy. We then tested for the role of environmental parameters and bird traits in determining the relationship's shape, utilizing general multivariate regression and a model-averaging technique. Overall, we corroborated an expected positive DAR for waterbirds, and we present, for the first time, a consistent seasonal weakening of the interspecific DAR. We posit that this decline in the relationship's slope is a result of the deterioration and homogenization of habitat quality later in the summer, which resulted in a large deficit of suitable fishponds as populations increased.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10615 - Ornithology

Projekt

<a href="/cs/project/SS01010280" target="_blank" >SS01010280: Optimalizace managementu rybničních lokalit směřující k zachování biodiversity v podmínkách klimatických změn</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ecosphere

ISSN

2150-8925

e-ISSN

2150-8925

Svazek periodika

15

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

1-18

Kód UT WoS článku

001372465300001

EID výsledku v databázi Scopus

2-s2.0-85211442095