Tag: Spain

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Should wolves in Europe have their conservation downgraded? Are they really stable enough to be hunted again

The European commision has proposed downgrading the protection of wolves from their current strictly protected, but it has been suggested that this is not based on any science.

A total of 9 countries (The call for a re-evaluation of the annexes of the EU Habitats Directive is included in a note put forward by Finland with the support of Austria, Czechia, Greece, Italy, Latvia, Romania, Slovakia and Sweden, ahead of the EU Agriculture Council meeting of 23 January).

The problem with this move, is that while in some countries like Romania, there is a large and healthy wolf population, in other countries like France it is a very different matter. If there is a change in their status, it needs to be assessed country by country, and the European Union must really require minimum levels, otherwise, this move is highly likely to lead to the extinction of the wolf across much of Europe once again.

While living alongside wolves is not always simple, it is essential to have predators to control populations of prey, such as deer. This is not something that is easily replaced by culling, and in the UK, the likely reduction in car collisions with deer would save far more than the cost of compensation for the occasional livestock that might be lost (of course, the wolf is not currently wild in the UK and the current government sees no reason to change this).

While complicated, the interest in the wolf is high, and it is highly likely that farmers would be able to supplement their farming income by money they could be paid through ecotourism and allowing people to try to see the wolves from their land. Wolves as with many other species are still slowly recovering from centuries of persecution, they are needed for our ecosystem to flourish, and can be good for everyone, with adjustments and compensation for loss of livestock.

Common Dolphin

Common Dolphin

  • The most abundant cetacean in the world, with around 6 million (it should be noted that there are 1350 humans in the world, for every individual common dolphin).

Despite this fact and its name, the common dolphin is not thought of as the model dolphin (that honour goes to the bottlenose dolphin due to its popular appearances in aquaria and the media). It did, however, feature heavily in Ancient Greek and Roman art and culture, most notably in a mural painted by the Greek Minoan civilization.

It is currently the only member of the genus Delphinus. The common dolphin belongs to the subfamily Delphininae, making this dolphin closely related to the three different species of bottlenose dolphins, humpback dolphins, striped dolphins, spinner dolphins, clymene dolphin, spotted dolphins, fraser’s dolphin and the tucuxi and guiana dolphin.[5] The common dolphin was originally categorized into two different species (now thought to be ecotypes), the short-beaked common dolphin and the long-beaked common dolphin. However, recent evidence has shown that generally long-beaked dolphins of this species have originated from the short-beaked population, and therefore there is no close links between different long-beaked dolphins in any part of the world.

Currently, the common dolphin is divided into four subspecies:

  • D. d. delphis, the nominate subspecies
  • D. d. bairdii, the Eastern North Pacific long-beaked common dolphin
  • D. d. ponticus, the Black Sea common dolphin
  • D. d. tropicalis, the Indo-Pacific common dolphin

A number of fossils were erroneously placed in the same genus, but this has since been corrected. 

Common dolphins can live in aggregations of hundreds or even thousands of dolphins,though are often seen in groups numbering several hundred individuals (with subgroups consisting of 20-30 individuals). Occasionally, different groups will come together to form mega-pods which can consist of over 10,000 dolphins – quite a site to witness. Genetic studies in the Northeast Atlantic suggest that common dolphin pods generally do not consist of close kin, but rather of members that are not closely related. Unlike many delphinids, common dolphins do not live in a matriarchal society. That being said, closely related individuals are usually found in similar geographical locations fairly consistently, providing evidence that this species displays site fidelity (at least in the North-eastern Atlantic). Male common dolphins display greater site fidelity in relation to their kin than females.

Common dolphin pod structure often consists of nursery pods (which includes females and calves), bachelor pods (consisting of all males) and mixed groups of males and females, including sub-adults and calves. Genetic evidence seems to indicate that common dolphins live in fission-fusion societies, where dolphins form pods that are not necessarily stable and do not necessarily consist of related individuals. It is not known if common dolphins form lifelong bonds with other individuals  like the long-term male alliances seen in bottlenose dolphins.

There is some evidence that common dolphins use signature whistles, similar to that of the bottlenose dolphin. These whistles are believed to serve as an acoustic label the dolphin equivalent of a name.  It takes approximately 1 year for a calf to learn its signature whistle after which it remains stable for the rest of a dolphin’s life.

In South Africa, as many as 29 common dolphin signature whistle types were detected. However, it was difficult to determine if each dolphin had its own signature whistle due to the vast number of dolphins present (over 1,000) and anthropogenic background noise. Additionally, considering the vast number of dolphins present and  taking into account their feeding and diving behaviour, it appears that common dolphin signature whistles are also used for group cohesion. Another hypothesis for the function of signature whistles, is that they serve as a beacon for lost individuals.

Common dolphins sometimes associate with other dolphin species, such as pilot whales (note, not actually whales). In the Gulf of Corinth, common dolphins frequently display mixed species association, especially with striped and Rissos’ dolphins. Over one third of all dolphin sightings in the gulf consisted of mixed species associations that partially consisted of common dolphins. In mixed species associations, the ratio of striped to common dolphins ranged from 6-11:1. When Rissos’ dolphins were present (there would usually be only one or two individuals), it appeared that much of their scars were the result of interactions between striped and spinner dolphins. In much of the interactions, the Rissos’ dolphins would chase and herd the common dolphins toward the boat, while the common dolphins would try and swim under the Rissos’ dolphin. When groups of common and striped dolphins would charge at each other, the Rissos’ dolphin would chase the striped dolphins. Sometimes these interactions appeared to be playful, and at other times aggressive. Synchronized swimming and surfacing was commonly observed. These interactions take place in the deepest part of the Gulf, furthest from shore and usually consist of a total of 60 dolphins from all three species.

There have been 15 cases of common dolphin and striped dolphin hybrids being recorded. Genetic and observational evidence has demonstrated that the hybrids are fertile and are capable of not only reproducing with other hybrids, but are capable of reproducing with each of the parent species. Striped dolphins have been known to mate with other dolphins, as the Clymene dolphin is the result of hybrid speciation between striped and spinner dolphins. However, this is unlikely to happen with common dolphins, as their population in the Gulf of Corinth is too low. Common dolphins and bottlenose dolphins have been known to interbreed in captivity. There is one confirmed case of a hybrid between a bottlenose and common dolphin in Southern Spain, an important feeding ground for both species. The mother was a female bottlenose dolphin (dubbed as Billie) who has spent 10 years within a common dolphin pod. Billie was observed assisting common calves reach the surface at three different intervals and would babysit the calves after the mother went through labour. They have also been observed bow riding on baleen whales, and they also bow ride on boats. They are fast swimmers and breaching behaviour and aerial acrobatics are common with this species. They are also known to display altruistic behaviours to support injured members.

The short-beaked common dolphin is pregnant for 10 to 11 months. The new-born calf has a length of 70 to 100 centimetres (2.3 to 3.3 ft) and weighs about 10 kilograms. For the Black Sea population, weaning occurs at between five and six months, but occurs later (up to about 19 months) in other areas. Typical interbirth interval ranges from one year for the Black Sea population to three years for eastern Pacific Ocean populations. Age of sexual maturity also varies by location, but can range between two and seven years for females and three and 12 years for males. No evidence exists of any major reproductive differences between the two species. In captivity, the long-beaked common dolphin has hybridized with the common bottlenose dolphin . One of the hybrids has been bred back to a bottlenose dolphin, demonstrating such hybrids are fertile.

Find our news section below this video of a megapod of common dolphins

Lynx (Iberian)

Lynx (Iberian)

Iberian lynx ( Lynx pardinus ) lying down on a rock in Spain

Iberian Lynx: Once found throughout the Iberian Peninsular as well as much of France: The Iberian lynx population fell to just 94 cats in two populations (23 years ago). Through intensive work the population has returned to 1668 as of May in 2023. This is currently restricted to just the south and west of the Iberian peninsular, but is likely to slowly expand its range North and East.

It is fantastic to see the Iberian Lynx returning to places that it was found in the past, however, what is clear is that as the human race, our current understanding of science allows a great deal of power, and it is scary to think that the introduction of an illness to kill rabbits could come so close to exterminating all Iberian Lynx.

 

Big cat family tree

The Cat (felidae) family tree

Pantherera family
Borneo bay cat
Caracal
Ocelot family
Lynx family (this is the Eurasian Lynx)
Puma family
Leopard cat family
Domestic cat

The Cats form an incredibly successful family. It is true that they are missing from the polar regions, and Australasia, but everywhere that they reached they have been successful, and in many ecosystems they are the undisputed kings

Panthera Family

 This family split from hte Felid ancestor 10.8 million years ago. There have been some debate as to whether the two species of clouded leopards should be included in Panthera. On the circular mammal tree (which we are using – look in the species watch tab, or click here)

They are generally included in a subgenus Panthera_Neofilis

 

Lion
Leopard
Jaguar
Tiger
Snow Leopard
Clouded Leopard
Sunda Clouded Leopard

Bay cat Familiy

Bay cat ancestor split 9.4 milion years ago

Asiatic Golden cat
Borneo bay cat
Marbled cat

Caracal Family

Caracal Ancestor split 8.5 million years ago

Caracal
African Golden Cat
Serval

Ocelot Family

Ocelot Ancestor 2.9 million years ago

Geoffrey cat
Kodkod
Tigrina or Oncilla (North and South)
Andean mountain cat
Pampas cat
Margay
Ocelot

Lynx Family

Lynx Ancestor 3.2 million years ago

Lynx family (this is the Eurasian Lynx)
Iberian lynx ( Lynx pardinus ) lying down on a rock in Spain
Bobcat
Canada Lynx in the snow is gazing curiously at the camera

Puma Family

Puma ancestor 4.9 million years ago

Puma (cougar, Mountain Lion)
Jaguarundi
Cheetah

Leopard cat Family

Leopard cat Ancestor 5.9 million year ago

Asian Leopard cat
Fishing Cat
Flat headed cat
Rusty spotted cat
Pallas cat

Domestic cat Family

Domestic cat Ancestor

Domestic cat
Wildcat
Sand cat
Black footed cat
Jungle cat
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Talking of the Cantabrian bear population of Spain, its growth is incredible – can its success be replicated?

In the 1990s the bear population of this mountain range consisted of about 50-65 in the western population, and 14-20 in the east. No more than 30 years later, that population numbers 300-400 (as much as a 6 fold increase).

How did they do this, and can the success be replicated. It is thought that just two stems were responsible for their recovery.

  1. Firstly, efforts to protect the environment have been successful. With a healthier ecosystem, the country is more capable of sustaining a bear population.
  2. Secondly, education of both locals and visiting tourists has lead to a greater acceptance of the bears. Furthermore, with the success of tourism, locals increasingly seeing the bears as an asset rather than a threat.

These bears are almost entirely vegetarian, and while efficient hunters whatever meat the consume, here it is usually carrion – animals that have naturally died, or been killed by other animals.

As a result, the bears are far less of a threat than wolves (though even wolves can cause little threat if farming is set up correctly). Bee keepers are threatened to a greater degree by the bears, however by returning to ancient bee keeping habits, this can be reduced to a minimum.

With a Bee keeping structure like this, if built properly then bears are incapable of breaking in

Back in the 1950s there is thought to have been as many as 1000 bears in the wilds of Spain, so the population still has some recovery to go through.

Never-the-less this is a good news story that is extremely encouraging that large carnivores and omnivores are still capable of surviving in the modern landscape of a western European country.

This is well worth a visit. A link will hopefully be added to this page in the next week or so

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Hello – I am back. Wildlife trip watching Cantabrian bears

Currently, we are still a small operation, so when I am away articles cease. This will change we move forwards.

I have been in Spain. I drove our new electric car down and spent a few days in the Cantabrian mountains.

An image showing what much of the Somiedo national park is like

Why the Cantabrian mountains? I visited them with my family some time ago, but with little time available (and two small children in tow) I was unable to get to the right places to see the bears.

That was not the case here.

Continue reading “Hello – I am back. Wildlife trip watching Cantabrian bears”
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Blue whales are returning to Spain’s Atlantic coast after a 40 year absence. What now

The first blue whale sighted in decades from this part of the world, was spotted off Spain’s coast in 2017, a different individual appeared in 2018 and a third in 2019. In 2020 2 returned.

At the end of September another was sighted off the coast of Spain.

It is unsure why they are back. Are they returning because they now feel safe? Or has climate change moved their food? Either way, it is quite something to see these huge animals returning to areas where they were hunted almost to extinction by humans.

Just before the whaling moratorium came into force, an entire generation of whales was wiped out. Now the descendants of the few who survived are returning. Some researchers are concerned that they are being forced north by global warming. Given that blue whales dont seem to cross the equator, if each population is pushed towards the poles, their habitat will be significantly reduced. Furthermore, their dung fertilizes ocean upper waters (areas with little nutrients) allowing phytoplankton to bloom, thereby capturing more carbon – and when I say more carbon, we are talking about 4 times the amount of carbon stored in the Amazon rainforest.

Whale recovery still has a long way to go. Before whaling started, there was estimated to be 4-5 million whales in the planets seas. At the current time, there are 1.3 million or roughly a quarter of pre whaling numbers. Importantly, the blue whale was so mercilessly hunted, that they have not recovered to anywhere near pre whaling numbers: their current population is only thought to be around 3% of historical numbers.

These animals are worth far more alive than dead. I realize that some communities have eaten whale for millennia. However there are several caveats to this. Firstly we have abandoned other environmentally damaging behaviours, why should we allow this. Secondly, few if any of the currently whaling countries rely on whaling to survive. In fact, with many of these communities, whaling is a recent activity. The Faroe islands kill thousands of dolphins and small whales each year, but they do not need all this meat, and this slaughter so colours peoples views that they loose far more in tourism revenue than they gain in the meat.

What ever is decided long-term to do with whale hunting, it is clear that blue whales should be left alone for a very long time more – many blue whale communities are flourishing with their population growing by 7-8% a year. However, given blue whales are at roughly 3% currently, it would take over half a century at current rates for the blue whale population to return to the numbers pre hunting.

Until the arrival of a blue whale off the coast is no longer memorable, there should not be any discussion about any harvesting. Furthermore, if the amount of carbon sequestration done by each whale is as high as it is thought, any meat should be priced high enough to pay for this (if this were to be done whale meat would be too expensive for almost anyone to afford)

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The Cantabrian brown bear is returning, will it be allowed

Back around the 1900 there were around 1000 bears roaming the mountains of the Iberian peninsular. Unfortunately by 1950 this population had been reduced to two small populations consisting of 50-60 in one and perhaps as low as 14 individuals in the other.

Bears are recolonising prime habitat that they have not been seen in for decades, long may it last
Continue reading “The Cantabrian brown bear is returning, will it be allowed”
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