Sara Morollón

• PhD in Experimental Sciences at University of Alicante

The Hen Harrier (Circus cyaneus) is a medium-sized raptor with a broad distribution across the Palearctic. In Spain, Hen Harrier behaviour is diverse due to being at the southern limit of its distribution, and the margins of distributions tend to show greater variability in the strategies and behaviours of animals. This study focused on juvenile di...

Raptors usually show use for a particular habitat to settle during the breeding period. In this study, we aimed to study the habitat use of the breeding populations of Hen Harrier (Circus cyaneus) in Spain, which represents the southern distribution limit of the species. We used GPS/GSM data from 17 individuals during 21 breeding periods. We analys...

Knowledge of vertebrate territoriality and spatial use is a topic of great interest in the study of animal behaviour and conservation biology. Investigating the plasticity of territory boundaries, the shape of territories and how territories can be modified depending on their owners is important to deepen our knowledge of the behaviour of territori...

Capsule Tracked Hen Harriers Circus cyaneus breeding in Spain winter either in the southern parts of the Iberian Peninsula or in Morocco, although migration timing and distances did not differ between birds using different wintering regions. Aims To study, for the first time, the migratory patterns of Hen Harriers breeding in Spain. Methods Ei...

Migratory connectivity describes the linkage between breeding and non-breeding sites, having major ecological implications in birds: one season influence the success of an individual or a population in the following season. Most studies on migratory connectivity have used large-scale approaches, often considering regional populations, but fine-scal...

Coloniality is one of the most common strategies in birds. While the lesser kestrel (Falco naumanni) is a colonial raptor during the breeding period, it is not known whether individuals from the same breeding colony aggregate during the non-breeding period too. We GPS-tracked 40 adult lesser kestrels from different Spanish breeding colonies to stud...

High-resolution GPS/GSM dataloggers provide spatial information of the highest quality, which outperform previous tracking methods, such as Argos telemetry or conventional VHF ground-tracking. As a result, this has improved our knowledge of home-range behavior and spatial ecology of many species, including large raptors. In this paper, we use high-...

High-resolution GPS/GSM dataloggers provide spatial information of the highest quality, which outperform previous tracking methods, such as Argos telemetry or conventional VHF ground-tracking. As a result, this has improved our knowledge of home-range behavior and spatial ecology of many species, including large raptors. In this paper, we use high-...

Se marcaron 6 buitres en la Sierra de Guadarrama y se estudió su ecología espacial a lo largo de dos décadas. En este póster presentamos de manera visual cómo varia su área de campeo a lo largo de los meses.

It was assumed that the Spanish breeding population of the red kite (Milvus milvus) was resident, hence their movements were restricted to their breeding area for their entire lifecycle. However, recent observations indicated that the post-reproductive strategies of the red kite in Spain are more diverse. We tagged 47 breeding adult red kites in Sp...

The current advent of GPS/GSM technology, with high resolution GPS dataloggers available, provides information of the highest quality, which is certainly better than previous tracking methods such as ARGOS telemetry or conventional VHF ground-tracking. As a result, this has improved our knowledge of home-range behavior and spatial ecology of many s...

Background Little is known about the interaction between predators and wildfires, in part because the large home range and scarcity of predators make their study difficult, and their response is strongly species-specific. Aims In this paper, we study, for the first time, the effect of wildfire on the behaviour of Bonelli’s eagles (Aquila fasciata)...

1. The knowledge about territoriality and space use by predators is a topic of great interest in the study of animal behavior and conservation biology. Examining the plasticity of territory limits, the topology and how territories can be modi ed depending on their owners is important to deepen into the behavior of territorial species. 2. Here, we...

The juvenile dispersal of raptors is a crucial stage that stretches from parental independence to the establishment of the first breeding area. Between 2012 and 2020, 44 juvenile red kites (Milvus milvus) from the Spanish breeding population were tagged using GPS telemetry to study their dispersal. Juveniles left the parental breeding area at the e...

La dispersión juvenil o dispersión natal es el conjunto de movimientos explora-torios que realizan las aves antes de llegar a la edad adulta. En esta etapa, los juveniles tienen un comportamiento distinto al de los adultos, por lo que se la considera una etapa diferenciada con características propias. Los movimientos dispersivos juveniles se caract...

Las aves rapaces suelen adoptar dos estrategias tras la época de cría: el sedentaris-mo y la migración. Las aves sedentarias, o residentes, son aquellas que permanecen en torno a un mismo territorio sin realizar desplazamientos importantes durante el año. Las aves migradoras, al contrario, se desplazan cientos o miles de kilómetros tras la reproduc...

ContextMovement ecology contributes valuable information about animal interactions with the environment, and their responses to landscape-level anthropogenic impacts. Big cats are vulnerable to such changes, but the current deficit of information about home range movements, limits the scope of conservation initiatives. Objectives Describe the home...

In this paper, we show how many fixes are enough to define the territory of two long-lived resident raptors marked by GPS transmitters. To this end, we analyzed high-resolution GPS data from 50 territorial Bonelli's eagles (Aquila fasciata) and 9 territorial Golden eagles (Aquila chrysaetos) equipped with GPS/GSM dataloggers. Our results show that...

Es el primer estudio donde se observa que el tejón se ve influenciado ante la presencia del lince ibérico. àExiste un claro efecto en cascada entre las especies estudiadas: • El descenso en las poblaciones de conejo afecta negativamente a las poblaciones de lince ibérico, descendiendo drásticamente. • Esa disminución de las poblaciones de lince afe...