|
Titre :
|
Saturation of breeding territories limits the expression of Natal Habitat Preference Induction (NHPI) by Florida Scrub-Jays (Aphelocoma coerulescens) (2025)
|
|
Auteurs :
|
Lyn A. Brown, Auteur ;
B. Hoover, Auteur ;
R. Bowman, Auteur
|
|
Type de document :
|
Article
|
|
Dans :
|
Wilson Journal of Ornithology (The) (137(1) March, 2025)
|
|
Article en page(s) :
|
24-37
|
|
Mots-clés:
|
Breeder settlement
;
adquisición de territorio
;
asentamiento reproductivo
;
empatamiento ambiental
;
environmental matching
;
habitat selection
;
impronta de hábitat natal
;
natal habitat imprinting
;
selección de hábitat
;
territorialidad
;
territoriality
;
territory acquisition
|
|
Résumé :
|
Natal Habitat Preference Induction (NHPI) is the preference of animals to choose habitat that is similar to their natal habitat where familiarity with the natal environment can impart survival and reproductive advantages. Little is known about whether passerines use NHPI in nest site selection or what the reproductive consequences may be. We tested whether NHPI operates during nest site selection by a U.S. federally listed threatened species, the Florida Scrub-Jay (Aphelocoma coerulescens), and potential effects of NHPI on fledging success. We used a long-term dataset of individually marked Florida Scrub-Jays at Archbold Biological Station in Venus, Florida, USA to examine natal histories of first-time breeders and fledging success of their first nests. From 2010 to 2021, first-time breeding females produced 144 nests, and first-time breeding males produced 187 nests. We tested for NHPI at the macrohabitat scale (breeding territory) and microhabitat scale (nest site). Females marginally expressed NHPI for oak cover within their territories although there was no reproductive benefit compared to nesting in non-oak cover. Otherwise, Florida Scrub-Jays did not generally show NHPI during nest site selection at the macrohabitat or microhabitat level. We suggest that NHPI may play a role in the Florida Scrub-Jay study system but breeding territory saturation is a primary constraint that essentially removes choice in nest site selection and generally overrides the opportunity to express NHPI. We describe how adequate choice is a prerequisite for NHPI in nest site selection. Our study highlights the importance of the interaction between breeding density and habitat availability during nest site selection.
|
|
En ligne :
|
https://doi.org/10.1080/15594491.2025.2463751
|
